https://nodjoy.com/note/20260624/rknn.html 笔记 pythonpytorchyolorknnnpu 环境 Ubuntu 22.04-local(x86-64) Ubuntu 22.04-rk3588(aarch64) RK3588 python3.8 本机-x86-64 配置rknn-toolkit2环境 conda create -n rknn python=3.8 conda activate rknn pip config set global.index-url https://mirrors.tuna.tsinghua.edu.cn/pypi/web/simple # reference: https://github.com/rockchip-linux/rknn-toolkit2 wget https://ghfast.top/github.com/airockchip/rknn-toolkit2/blob/master/rknn-toolkit2/packages/x86_64/requirements_cp38-2.3.2.txt pip install -r requirements_cp38-2.3.2.txt wget https://ghfast.top/github.com/airockchip/rknn-toolkit2/blob/master/rknn-toolkit2/packages/x86_64/rknn_toolkit2-2.3.2-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl pip install rknn_toolkit2-2.3.2-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl git clone https://github.com/airockchip/ultralytics_yolov8.git cd ultralytics_yolov8 pip install -e . yolo check 模型转换 # 先转为onnx: cd ultralytics_yolov8 # 编辑./ultralytics/cfg/default.yaml 中 model 文件路径 export PYTHONPATH=./ # 转换 python ./ultralytics/engine/exporter.py # onnx转为rknn git clone https://github.com/airockchip/rknn_model_zoo.git cd rknn_model_zoo/examples/yolov8/python # convert python convert.py /your_path/yolov8n.onnx rk3588 fp yolov8n.rknn copy yolov8n.rknn to your 3588 device rk3588-aarch64 安装miniconda # 1. download: https://mirrors.tuna.tsinghua.edu.cn/anaconda/miniconda/Miniconda3-latest-Linux-aarch64.sh # 2. install miniconda3 chmod +x Miniconda3-latest-Linux-aarch64.sh sudo bash Miniconda3-latest-Linux-aarch64.sh # input installation path: /home/hello/miniconda3 miniconda3/bin/conda init bash source ~/.bashrc 配置rknn-toolkit-lite2环境 # 1. create conda env conda create -n rknn python=3.8 conda activate rknn pip config set global.index-url https://mirrors.tuna.tsinghua.edu.cn/pypi/web/simple # 2. install opencv pytorch numpy... wget https://ghfast.top/github.com/airockchip/rknn-toolkit2/blob/master/rknn-toolkit2/packages/arm64/arm64_requirements_cp38.txt pip install -r arm64_requirements_cp38.txt # 3. install rknn-toolkit-lite2 wget https://ghfast.top/github.com/airockchip/rknn-toolkit2/blob/master/rknn-toolkit-lite2/packages/rknn_toolkit_lite2-2.3.2-cp38-cp38-manylinux_2_17_aarch64.manylinux2014_aarch64.whl pip install rknn_toolkit_lite2-2.3.2-cp38-cp38-manylinux_2_17_aarch64.manylinux2014_aarch64.whl 推理视频测试 from rknnlite.api import RKNNLite import cv2 import numpy as np import os MODEL_PATH = 'weights/yolov8n.rknn' # VIDEO_PATH = 'rtsp://192.168.10.178/live/camera0' VIDEO_PATH = 'test.mp4' OBJ_THRESH = 0.25 NMS_THRESH = 0.45 IMG_SIZE = (640, 640) # (width, height) CLASSES = ("person", "bicycle", "car", "motorbike", "aeroplane", "bus", "train", "truck", "boat", "traffic light", "fire hydrant", "stop sign", "parking meter", "bench", "bird", "cat", "dog", "horse", "sheep", "cow", "elephant", "bear", "zebra", "giraffe", "backpack", "umbrella", "handbag", "tie", "suitcase", "frisbee", "skis", "snowboard", "sports ball", "kite", "baseball bat", "baseball glove", "skateboard", "surfboard", "tennis racket", "bottle", "wine glass", "cup", "fork", "knife", "spoon", "bowl", "banana", "apple", "sandwich", "orange", "broccoli", "carrot", "hot dog", "pizza", "donut", "cake", "chair", "sofa", "pottedplant", "bed", "diningtable", "toilet", "tvmonitor", "laptop", "mouse", "remote", "keyboard", "cell phone", "microwave", "oven", "toaster", "sink", "refrigerator", "book", "clock", "vase", "scissors", "teddy bear", "hair drier", "toothbrush") def filter_boxes(boxes, box_confidences, box_class_probs): """Filter boxes with object threshold.""" box_confidences = box_confidences.reshape(-1) candidate, class_num = box_class_probs.shape class_max_score = np.max(box_class_probs, axis=-1) classes = np.argmax(box_class_probs, axis=-1) _class_pos = np.where(class_max_score * box_confidences >= OBJ_THRESH) scores = (class_max_score * box_confidences)[_class_pos] boxes = boxes[_class_pos] classes = classes[_class_pos] return boxes, classes, scores def nms_boxes(boxes, scores): """Suppress non-maximal boxes.""" x = boxes[:, 0] y = boxes[:, 1] w = boxes[:, 2] - boxes[:, 0] h = boxes[:, 3] - boxes[:, 1] areas = w * h order = scores.argsort()[::-1] keep = [] while order.size > 0: i = order[0] keep.append(i) xx1 = np.maximum(x[i], x[order[1:]]) yy1 = np.maximum(y[i], y[order[1:]]) xx2 = np.minimum(x[i] + w[i], x[order[1:]] + w[order[1:]]) yy2 = np.minimum(y[i] + h[i], y[order[1:]] + h[order[1:]]) w1 = np.maximum(0.0, xx2 - xx1 + 0.00001) h1 = np.maximum(0.0, yy2 - yy1 + 0.00001) inter = w1 * h1 ovr = inter / (areas[i] + areas[order[1:]] - inter) inds = np.where(ovr <= NMS_THRESH)[0] order = order[inds + 1] keep = np.array(keep) return keep def dfl(position): """Distribution Focal Loss (DFL) - numpy implementation.""" n, c, h, w = position.shape p_num = 4 mc = c // p_num # Reshape to (n, p_num, mc, h, w) position = position.reshape(n, p_num, mc, h, w) # Softmax along mc dimension exp_position = np.exp(position - np.max(position, axis=2, keepdims=True)) softmax_position = exp_position / np.sum(exp_position, axis=2, keepdims=True) # Create accumulation matrix acc_metrix = np.arange(mc).reshape(1, 1, mc, 1, 1).astype(np.float32) # Weighted sum result = (softmax_position * acc_metrix).sum(axis=2) return result def box_process(position): """Process box coordinates.""" grid_h, grid_w = position.shape[2:4] col, row = np.meshgrid(np.arange(0, grid_w), np.arange(0, grid_h)) col = col.reshape(1, 1, grid_h, grid_w) row = row.reshape(1, 1, grid_h, grid_w) grid = np.concatenate((col, row), axis=1) stride = np.array([IMG_SIZE[1] // grid_h, IMG_SIZE[0] // grid_w]).reshape(1, 2, 1, 1) position = dfl(position) box_xy = grid + 0.5 - position[:, 0:2, :, :] box_xy2 = grid + 0.5 + position[:, 2:4, :, :] xyxy = np.concatenate((box_xy * stride, box_xy2 * stride), axis=1) return xyxy def post_process(input_data): """Post-process model outputs.""" boxes, scores, classes_conf = [], [], [] defualt_branch = 3 pair_per_branch = len(input_data) // defualt_branch for i in range(defualt_branch): boxes.append(box_process(input_data[pair_per_branch * i])) classes_conf.append(input_data[pair_per_branch * i + 1]) scores.append(np.ones_like(input_data[pair_per_branch * i + 1][:, :1, :, :], dtype=np.float32)) def sp_flatten(_in): ch = _in.shape[1] _in = _in.transpose(0, 2, 3, 1) return _in.reshape(-1, ch) boxes = [sp_flatten(_v) for _v in boxes] classes_conf = [sp_flatten(_v) for _v in classes_conf] scores = [sp_flatten(_v) for _v in scores] boxes = np.concatenate(boxes) classes_conf = np.concatenate(classes_conf) scores = np.concatenate(scores) boxes, classes, scores = filter_boxes(boxes, scores, classes_conf) nboxes, nclasses, nscores = [], [], [] for c in set(classes): inds = np.where(classes == c) b = boxes[inds] c = classes[inds] s = scores[inds] keep = nms_boxes(b, s) if len(keep) != 0: nboxes.append(b[keep]) nclasses.append(c[keep]) nscores.append(s[keep]) if not nclasses and not nscores: return None, None, None boxes = np.concatenate(nboxes) classes = np.concatenate(nclasses) scores = np.concatenate(nscores) return boxes, classes, scores def letter_box(im, new_shape=(640, 640), pad_color=(0, 0, 0)): """Resize and pad image to new_shape.""" shape = im.shape[:2] # current shape [height, width] if isinstance(new_shape, int): new_shape = (new_shape, new_shape) r = min(new_shape[0] / shape[0], new_shape[1] / shape[1]) ratio = r, r new_unpad = int(round(shape[1] * r)), int(round(shape[0] * r)) dw, dh = new_shape[1] - new_unpad[0], new_shape[0] - new_unpad[1] dw, dh = dw / 2, dh / 2 if shape[::-1] != new_unpad: im = cv2.resize(im, new_unpad, interpolation=cv2.INTER_LINEAR) top, bottom = int(round(dh - 0.1)), int(round(dh + 0.1)) left, right = int(round(dw - 0.1)), int(round(dw + 0.1)) im = cv2.copyMakeBorder(im, top, bottom, left, right, cv2.BORDER_CONSTANT, value=pad_color) return im, ratio, (dw, dh) def draw(image, boxes, scores, classes): """Draw detection results on image.""" for box, score, cl in zip(boxes, scores, classes): top, left, right, bottom = [int(_b) for _b in box] cv2.rectangle(image, (top, left), (right, bottom), (255, 0, 0), 2) cv2.putText(image, '{0} {1:.2f}'.format(CLASSES[cl], score), (top, left - 6), cv2.FONT_HERSHEY_SIMPLEX, 0.6, (0, 0, 255), 2) def main(): # Initialize RKNNLite rknn_lite = RKNNLite() # Load RKNN model print('--> Load RKNN model') ret = rknn_lite.load_rknn(MODEL_PATH) if ret != 0: print('Load RKNN model failed!') return # Init runtime environment print('--> Init runtime environment') try: # 尝试不指定 target，让系统自动检测 ret = rknn_lite.init_runtime() if ret != 0: print('Init runtime environment failed!') return except Exception as e: print(f'Init runtime environment failed with error: {e}') print('\nTrying alternative initialization methods...') # 尝试指定不同的 target targets_to_try = ['rk3588', 'rk3568', 'rk3566', 'rk3562', 'rk3576'] for target in targets_to_try: try: print(f' Trying target={target}...') ret = rknn_lite.init_runtime(target=target) if ret == 0: print(f' Successfully initialized with target={target}') break except Exception as e2: print(f' Failed with target={target}: {e2}') continue else: print('\nAll initialization attempts failed.') return # Open video file cap = cv2.VideoCapture(VIDEO_PATH) if not cap.isOpened(): print(f'Cannot open video: {VIDEO_PATH}') return # Get video info fps = cap.get(cv2.CAP_PROP_FPS) width = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH)) height = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT)) print(f'Video info: {width}x{height} @ {fps} FPS') frame_count = 0 while True: ret, frame = cap.read() if not ret: break frame_count += 1 print(f'Processing frame {frame_count}', end='\r') # Preprocess img, ratio, (dw, dh) = letter_box(frame.copy(), new_shape=IMG_SIZE, pad_color=(0, 0, 0)) img = cv2.cvtColor(img, cv2.COLOR_BGR2RGB) # RKNN 需要 4 维输入 (batch, height, width, channels) img = np.expand_dims(img, axis=0) # Inference try: outputs = rknn_lite.inference(inputs=[img]) except Exception as e: print(f'\nInference failed: {e}') continue if outputs is None or len(outputs) == 0: print('\nNo outputs from inference') continue # Post-process boxes, classes, scores = post_process(outputs) # Scale boxes back to original image size if boxes is not None: boxes[:, 0] = (boxes[:, 0] - dw) / ratio[1] boxes[:, 1] = (boxes[:, 1] - dh) / ratio[0] boxes[:, 2] = (boxes[:, 2] - dw) / ratio[1] boxes[:, 3] = (boxes[:, 3] - dh) / ratio[0] # Clip boxes to image boundaries boxes[:, 0] = np.clip(boxes[:, 0], 0, width) boxes[:, 1] = np.clip(boxes[:, 1], 0, height) boxes[:, 2] = np.clip(boxes[:, 2], 0, width) boxes[:, 3] = np.clip(boxes[:, 3], 0, height) # Draw results draw(frame, boxes, scores, classes) # Show result cv2.imshow('YOLOv8 Detection', frame) # Press 'q' to quit if cv2.waitKey(1) & 0xFF == ord('q'): break # Release resources cap.release() cv2.destroyAllWindows() rknn_lite.release() print(f'\nProcessed {frame_count} frames') if __name__ == '__main__': main() https://nodjoy.com/note/202605/jetson.html 笔记 jetsonpythonpytorchyoloubuntu 环境 Jetpack 6.2.2 Ubuntu 22.04 Install some dependences and pip sudo apt install python3-pip libopenblas-base libopenmpi-dev libomp-dev libjpeg-dev zlib1g-dev libpython3-dev libopenblas-dev libavcodec-dev libavformat-dev libswscale-dev pip config --user set global.index-url https://mirrors.huaweicloud.com/repository/pypi/simple pip install --upgrade pip Install pytorch torchvision # https://developer.download.nvidia.com/compute/redist/jp/v61/pytorch/ wget https://developer.download.nvidia.com/compute/redist/jp/v61/pytorch/torch-2.5.0a0+872d972e41.nv24.08.17622132-cp310-cp310-linux_aarch64.whl pip install torch-2.5.0a0+872d972e41.nv24.08.17622132-cp310-cp310-linux_aarch64.whl git clone --branch release/0.20 https://github.com/pytorch/vision torchvision cd torchvision export BUILD_VERSION=0.20 python3 setup.py install --user # 会报错，需要安装cusparselt：https://developer.nvidia.com/cusparselt-downloads # install cusparselt wget https://developer.download.nvidia.com/compute/cusparselt/0.9.1/local_installers/cusparselt-local-repo-ubuntu2204-0.9.1_0.9.1-1_arm64.deb sudo dpkg -i cusparselt-local-repo-ubuntu2204-0.9.1_0.9.1-1_arm64.deb sudo cp /var/cusparselt-local-repo-ubuntu2204-0.9.1/cusparselt-*-keyring.gpg /usr/share/keyrings/ sudo apt-get update sudo apt-get -y install cusparselt # 再次尝试安装 python3 setup.py install --user Check CUDA and cuDNN import torch print('CUDA available: ' + str(torch.cuda.is_available())) print('cuDNN version: ' + str(torch.backends.cudnn.version())) a = torch.tensor([0., 0.], dtype=torch.float32, device='cuda') print('Tensor a =', a) b = torch.randn(2, device='cuda') print('Tensor b =', b) c = a + b print('Tensor c =', c) import torchvision print(torchvision.__version__) Install numpy 1.26.4 pip uninstall numpy pip install numpy==1.26.4 Install ultralytics pip install ultralytics Export engine model file yolo export model=best.pt format=engine device=0 half=True imgsz=640 simplify=False workspace=4 Install jtop sudo pip install jetson-stats sudo systemctl enable jtop.service sudo systemctl start jtop.service Install gstreamer and opencv sudo apt install -y \ python3-gi \ python3-gst-1.0 \ gstreamer1.0-tools \ gstreamer1.0-plugins-base \ gstreamer1.0-plugins-good \ gstreamer1.0-plugins-bad \ gstreamer1.0-plugins-ugly \ libgstreamer1.0-dev \ libgstreamer-plugins-base1.0-dev \ gstreamer1.0-plugins-base-apps pip uninstall opencv-python opencv-contrib-python opencv-python-headless sudo apt install -y python3-opencv https://nodjoy.com/note/20250725/ocr.html 笔记 pythonflaskddddocrocrnodejs 使用python-ddddocr库识别图片文字内容 环境： conda create -n py312 python=3.12 && conda activate py312 依赖安装：pip install ddddocr flask Python代码: from flask import Flask, request import ddddocr import base64 import json from PIL import Image import io app = Flask(__name__) @app.route('/') def index(): return "Hello, Flask!" @app.route('/ocr', methods=['POST']) def ocr(): # get json data from body '''Request example { "type": "file", "image": "./public/images/test.png" } OR { "type": "base64", "image": "data:image/png;base64,/9j/4AAQSkZJRgAB..." } ''' data = request.json # print(data) img_str = data.get('image', '') if not img_str: return json.dumps({"error": "No image data provided"}), 400, {'Content-Type': 'application/json'} # Decode the base64 string to an image if data.get('type', '') == 'base64': img_data = decode_base64_to_img(img_str) # Read the image from a file if data.get('type', '') == 'file': with open(img_str, 'rb') as f: img_data = f.read() # Perform OCR on the image ocr = ddddocr.DdddOcr() result = ocr.classification(img_data) # Return the OCR result # print(result) return json.dumps({"result": result}), 200, {'Content-Type': 'application/json'} # Base64 conversion to image def decode_base64_to_img(base64_str): # Remove the prefix if it exists if base64_str.startswith("data:image/png;base64,"): base64_str = base64_str.replace("data:image/png;base64,", "") # Decode the base64 string img_data = base64.b64decode(base64_str) # Convert bytes to an image img = Image.open(io.BytesIO(img_data)) return img if __name__ == '__main__': app.run(debug=True, host='0.0.0.0', port=5002) 使用阿里云OCR识别 https://ai.aliyun.com/ocr import ocr_api20210707 from '@alicloud/ocr-api20210707'; import OpenApi from '@alicloud/openapi-client'; import Credential, { Config } from '@alicloud/credentials'; import Util from '@alicloud/tea-util'; import Stream from '@alicloud/darabonba-stream' class OCRClient { static createClient() { const credentialsConfig = new Credential.Config({ type: 'access_key', accessKeyId: 'YourAccessKeyId', accessKeySecret: 'YourAccessKeySecret', }); const credential = new Credential.default(credentialsConfig); let config = new OpenApi.Config({ credential: credential, }); config.endpoint = `ocr-api.cn-hangzhou.aliyuncs.com`; return new ocr_api20210707.default(config); } static async main(img_type, value) { let client = OCRClient.createClient(); let reqData if (img_type === 'url') { reqData = { url: value, type: 'General', } } if (img_type === 'file') { let img_path = value ? value : './public/captcha.png'; let bodyStream = Stream.default.readFromFilePath(img_path); reqData = { body: bodyStream, type: 'General' } } let recognizeAllTextRequest = new ocr_api20210707.RecognizeAllTextRequest(reqData); let runtime = new Util.RuntimeOptions({ }); try { let resp = await client.recognizeAllTextWithOptions(recognizeAllTextRequest, runtime); const response = JSON.parse(Util.default.toJSONString(resp)); return response.body.data; } catch (error) { console.log(error.message); Util.default.assertAsString(error.message); } } } // exports.OCRClient = OCRClient; // commonjs export export default OCRClient; // es6 module export // Call example: // OCRClient.main('url','https://cdn.nodjoy.com/temp/author.jpg'); // OCRClient.main('file','./public/captcha.png'); 使用tesseract.js识别图片内容 npm install express tesseract.js sharp svg-captcha import express from "express"; import sharp from "sharp"; import path from "path"; import fs from "fs"; import svgCaptcha from 'svg-captcha'; const app = express(); // 生成图片验证码 app.get('/captcha', async (req, res) => { const captcha = svgCaptcha.create({ size: 4, noise: 2, color: true, background: '#ccf' }); // console.log(captcha.data); // <svg>...</svg> // console.log(captcha.text); // 'b3j5' const pngBuffer = await sharp(Buffer.from(captcha.data)).png().toBuffer(); const base64 = pngBuffer.toString('base64'); // save image file to folder // const fileName = 'captcha_' + Date.now() + (Math.floor(Math.random() * 1000) + 1000) + '.png'; // const filePath = path.join('./public', fileName); // fs.writeFileSync(filePath, pngBuffer); res.json({ image: `data:image/png;base64,${base64}`, success: true }); }); app.listen(3000, () => { console.log(`Server running...`); }); // 识别 import Tesseract from "tesseract.js"; const imageBase64 = "data:image/png;base64,iVBORw..." try { // 识别文字 const result = await Tesseract.recognize( imageBase64, // 图片数据 'eng', // 可替换为 'chi_sim' 等语言 { // logger: m => console.log(m) // 可选：输出识别进度 } ); console.log('tesseractOCR识别结果:', result.data.text); } catch (err) { console.log('tesseractOCR识别出错'); } https://nodjoy.com/note/20240517/vm-nat.html 笔记 ProxmoxDHCPVM网络 环境准备 OS: Proxmox 7.4(Debian 11) 软件: dnsmasq 配置 新建网络 新建一个网络,例如 vmbr2 编辑网络配置 编辑网络配置： vi /etc/network/interfaces 末尾添加以下内容： post-up echo 1 > /proc/sys/net/ipv4/ip_forward post-up iptables -t nat -A POSTROUTING -s '192.168.100.0/24' -o vmbr0 -j MASQUERADE post-down iptables -t nat -D POSTROUTING -s '192.168.100.0/24' -o vmbr0 -j MASQUERADE 安装并配置dnsmasq,使连接到vmbr2的虚拟机能够自动获取IP地址 安装： apt install dnsmasq 编辑配置文件： vi /etc/dnsmasq.d/vmbr2.conf interface=vmbr2 dhcp-range=192.168.100.2,192.168.100.254,12h # 设置dhcp范围 dhcp-option=option:router,192.168.100.1 # 设置网关 dhcp-option=option:dns-server,192.168.100.1 # 设置DNS 配置/etc/sysctl.conf(部分机型可能需要配置) 编辑配置文件： vi /etc/sysctl.conf 末尾添加以下内容(下方enp3s0修改成实际网卡名称)： #IPV4转发 net.ipv4.ip_forward=1 net.ipv4.conf.all.rp_filter=1 net.ipv4.icmp_echo_ignore_broadcasts=1 net.ipv4.conf.default.forwarding=1 net.ipv4.conf.default.proxy_arp = 0 net.ipv4.conf.default.send_redirects = 1 net.ipv4.conf.all.send_redirects = 0 #IPV6转发 net.ipv6.conf.enp3s0.autoconf=0 net.ipv6.conf.enp3s0.accept_ra=2 net.ipv6.conf.default.forwarding=1 net.ipv6.conf.all.forwarding=1 net.ipv6.conf.default.proxy_ndp=1 net.ipv6.conf.all.proxy_ndp=1 重启网络及dnsmasq服务 ifreload -a systemctl restart networking systemctl restart dnsmasq 参考：Proxmox虚拟机配置NAT网络、proxmox虚拟机使用nat网络 https://nodjoy.com/tech/202403/tc_ipv6.html 技术 tc网络iperfipv6 环境准备 OS: Ubuntu 软件: iperf tcconfig 安装iperf和tcconfig 在服务端A 安装iperf和tcconfig 在客户端B 安装iperf iperf apt install iperf tcconfig 下载tcconfig: https://github.com/thombashi/tcconfig/releases 参考文档: https://tcconfig.readthedocs.io/en/latest/index.html 使用ping6测试ipv6地址,保证客户端与服务端可以互通 ping6 -I ens33 ipv6 使用iperf连接 在客户端B 开启iperf服务 iperf -s -V 在服务端A 向客户端B发送数据 iperf -c [客户端B IPv6地址]%[当前设备的网卡] -V -t 60 -i 1 -b 20M -r 这将在服务器与客户端之间执行带宽测试，发送20M的数据，并且测试时间为60秒 限速 在服务端A使用tcconfig执行限速 tcset ens33 --rate 1Mbps --network [ipv6_addr] --ipv6 重新发送数据测试,并观察网络带宽 https://nodjoy.com/tech/20240207/proxmox.html 技术 ProxmoxDebianLinuxOpenSSH openssh版本升级至9.6p1 环境 OS: Proxmox7.4 (Debian11) 设置apt源 sed -i 's@deb.debian.org@mirrors.huaweicloud.com@g' /etc/apt/sources.list sed -i 's@ftp.debian.org@mirrors.huaweicloud.com@g' /etc/apt/sources.list apt update 取消proxmox对软件卸载的限制(暂时移除pve-apt-hook) mv /usr/share/proxmox-ve/pve-apt-hook /usr/share/proxmox-ve/pve-apt-hook.bak touch /usr/share/proxmox-ve/pve-apt-hook && chmod 777 /usr/share/proxmox-ve/pve-apt-hook 备份相关配置文件并卸载ssh systemctl stop ssh mv /etc/ssh /etc/ssh-bak && mv /etc/pam.d/sshd /etc/pam.d/sshd-bak apt remove openssh-server 恢复pve-apt-hook mv /usr/share/proxmox-ve/pve-apt-hook.bak /usr/share/proxmox-ve/pve-apt-hook 安装依赖 apt install libssl-dev gcc g++ gdb cpp make cmake libtool libc6 autoconf automake pkg-config build-essential gettext apt install libzstd1 zlib1g libssh-4 libssh-dev libc6-dev libc6 libcrypt-dev libpam0g-dev Other helpful tools for debugging server issues apt install netcat lsof wget diffutils Download the 9.6 archive cd /opt VER=9.6p1 wget https://mirrors.aliyun.com/pub/OpenBSD/OpenSSH/portable/openssh-${VER}.tar.gz Verify the download using gpg # Import the public signing key wget https://mirrors.aliyun.com/pub/OpenBSD/OpenSSH/RELEASE_KEY.asc gpg --import RELEASE_KEY.asc # Verify wget https://mirrors.aliyun.com/pub/OpenBSD/OpenSSH/portable/openssh-${VER}.tar.gz.asc gpg --verbose --verify openssh-${VER}.tar.gz.asc Build tar -xvf openssh-${VER}.tar.gz cd openssh-${VER} ./configure --prefix=/usr --sysconfdir=/etc/ssh --with-zlib --with-md5-passwords --with-pam make make install 还原配置文件 mv /etc/ssh /etc/ssh-9.6 && mv /etc/ssh-bak /etc/ssh mv /etc/pam.d/sshd-bak /etc/pam.d/sshd 查看版本并启动 ssh -V systemctl unmask ssh systemctl start ssh https://nodjoy.com/leaf/202308/wsl.html 杂记 wsldocker Windows 10 WSL2 安装配置 安装 WSL2 启用适用于 Linux 的 Windows 子系统 和 虚拟机平台 选项 microsoft store 搜索并安装 ubuntu22.04 设置默认版本为 WSL2 wsl --set-default-version 2 wsl2 内核更新 下载地址 Docker无法启动问题解决 由于新的ubuntu系统使用了iptables-nft，而WSL2不支持导致的 sudo update-alternatives --set iptables /usr/sbin/iptables-legacy sudo update-alternatives --set ip6tables /usr/sbin/ip6tables-legacy 重启docker sudo service docker restart https://nodjoy.com/part/20230430/video.html 分享 Video https://nodjoy.com/part/20230430/video4k.html 分享 Video https://nodjoy.com/note/20221226/portainer.html 笔记 DockerPortainer 安装部署portainer-ce # 创建目录 mkdir -p app/portainer/portainer_data # 修改权限 chmod -R 777 app/portainer/portainer_data # 进入目录 cd app/portainer # 启动容器 docker run -d -p 8000:8000 -p 9443:9443 --name portainer --restart=always -v /var/run/docker.sock:/var/run/docker.sock -v $(pwd)/portainer_data:/data portainer/portainer-ce:latest 访问portainer https://ip:9443 创建管理员账号密码，登录即可 配置portainer-agent,管理其他主机 在agent主机上安装portainer-agent docker run -d -p 9001:9001 --name portainer_agent --restart=always -v /var/run/docker.sock:/var/run/docker.sock -v /var/lib/docker/volumes:/var/lib/docker/volumes portainer/agent:latest 在portainer主机上添加agent主机 点击左侧菜单栏的Endpoints 点击右上角的Add endpoint 选择Docker Standalone 输入Agent主机的IP地址和端口号 点击Connect Docker Standalone是指单机版的Docker。在Docker Standalone中，您可以在单个主机上运行一个或多个Docker容器。 Docker Swarm是Docker的分布式集群管理系统。它允许您将多个主机组成一个集群，然后在集群中运行和管理Docker容器。 Docker Swarm提供了一组工具，可用于在集群中的多个主机上部署和管理容器，并为容器提供负载平衡和高可用性。 总的来说，Docker Standalone是用于在单个主机上运行Docker容器的简单工具，而Docker Swarm是用于在多个主机的集群中运行和管理Docker容器的分布式系统。 https://nodjoy.com/note/20221224/jspdf.html 笔记 vuejspdfpdf 问题 分页时内容被截断 解决 环境 vue2 依赖包：jspdf html2canvas jspdf-autotable 第一种解决方案—使用jspdf-autotable 适用于内容为表格的情况 jspdf-autotable会自动处理分页 <script> import jsPDF from "jspdf"; import "jspdf-autotable"; // import html2canvas from "html2canvas"; export default { name: "HelloWorld", props: { msg: String, }, methods: { jspdf() { let doc = new jsPDF(); let columns = ["ID", "Name", "Country"]; let rows = [ [1, "Shaw", "Tanzania"], [2, "Nelson", "Kazakhstan"], [3, "Garcia", "Madagascar"], [4, "Shaw", "Tanzania"], [5, "Nelson", "Kazakhstan"], [6, "Garcia", "Madagascar"], ]; doc.autoTable(columns, rows); doc.save("table.pdf"); }, }, }; </script> 第二种解决方案—使用html2canvas a. 适用于内容为html的情况 b. html2canvas的原理：将html转换为canvas，再将canvas转换为图片，最后将图片添加到pdf中 c. 实现原理：限制html内容的大小，让元素内容占pdf的一页，然后合并pdf <template> <div class="hello"> <button @click="jspdf">jspdf</button> <div id="myPage"> <!--每n行填充一次表格--> <div v-for="p in pageCount" :key="p" :id="'page' + p" class="table"> <table style="font-size: 62px" border="1" cellspacing="0" cellpadding="1" > <thead> <tr> <th v-for="column in columns" :key="column.title"> {{ column.title }} </th> </tr> </thead> <tbody> <!--rows pageSize行--> <tr v-for="row in rows.slice((p - 1) * pageSize, p * pageSize)" :key="row.id" > <td v-for="column in columns" :key="column.title"> {{ row[column.dataKey] }} </td> </tr> </tbody> </table> </div> </div> </div> </template> <script> import jsPDF from "jspdf"; import "jspdf-autotable"; import html2canvas from "html2canvas"; export default { name: "HelloWorld", data() { return { columns: [ { title: "ID", dataKey: "id" }, { title: "Name", dataKey: "name" }, { title: "Country", dataKey: "country" }, ], rows: [ { id: 1, name: "Shaw", country: "Tanzania" }, { id: 2, name: "Nelson", country: "Kazakhstan" }, { id: 3, name: "Garcia", country: "Madagascar" }, { id: 4, name: "Shaw", country: "Tanzania" }, { id: 5, name: "Nelson", country: "Kazakhstan" }, { id: 6, name: "Garcia", country: "Madagascar" }, ], tableCount: 0, pageSize: 20, }; }, props: { msg: String, }, computed: { // 总记录数 tableCounts() { return this.rows.length; }, // 总页数 pageCount() { return Math.ceil(this.tableCounts / this.pageSize); }, }, methods: { // 导出pdf async jspdf() { let arrData = []; for (let i = this.pageCount; i > 0; i--) { let idName = "page" + i; let imageData = await this.html2c(idName); arrData.unshift(imageData); } let PDF = new jsPDF("", "pt", "a4"); //A4纸，纵向 for (let i = 0; i < arrData.length; i++) { PDF.addImage (arrData[i].pageData, "JPEG", 20, 20, arrData[i].imgWidth, arrData[i].imgHeight ); //添加图片 if (arrData.length - i > 1) { PDF.addPage(); } } PDF.save("hello" + ".pdf"); }, // html转canvas async html2c(idName) { return new html2canvas(document.getElementById(idName), { // allowTaint: true //跨域图片 useCORS: true, //跨域图片， }).then(function (canvas) { let contentWidth = canvas.width; //内容宽度 let contentHeight = canvas.height; //内容高度 // let pageHeight = (contentWidth / 555.28) * 841.89; //一页pdf显示html页面生成的canvas高度; // let leftHeight = contentHeight; //剩余内容高度 // let position = 20; //距离顶部位置 let imgWidth = 555.28; //img宽度 let imgHeight = (555.28 / contentWidth) * contentHeight; //img高度 let pageData = canvas.toDataURL("image/jpeg", 1.0); //生成一张图片 let pageObject = { pageData: pageData, imgWidth: imgWidth, imgHeight: imgHeight, }; return pageObject; }); }, }, }; </script> <style scoped> h3 { margin: 40px 0 0; } ul { list-style-type: none; padding: 0; } li { display: inline-block; margin: 0 10px; } a { color: #42b983; } .table { margin-top: 60px; } </style> 参考： <script> import jsPDF from "jspdf"; import "jspdf-autotable"; import html2canvas from "html2canvas"; export default { name: "HelloWorld", data() { return { columns: [ { title: "ID", dataKey: "id" }, { title: "Name", dataKey: "name" }, { title: "Country", dataKey: "country" }, ], rows: [ { id: 1, name: "Shaw", country: "Tanzania" }, { id: 2, name: "Nelson", country: "Kazakhstan" }, { id: 3, name: "Garcia", country: "Madagascar" }, { id: 4, name: "Shaw", country: "Tanzania" }, { id: 5, name: "Nelson", country: "Kazakhstan" }, { id: 6, name: "Garcia", country: "Madagascar" }, { id: 7, name: "Shaw", country: "Tanzania" }, { id: 8, name: "Nelson", country: "Kazakhstan" }, { id: 9, name: "Garcia", country: "Madagascar" }, { id: 10, name: "Shaw", country: "Tanzania" }, { id: 11, name: "Nelson", country: "Kazakhstan" }, { id: 12, name: "Garcia", country: "Madagascar" }, ], }; }, props: { msg: String, }, methods: { jspdf() { html2canvas(document.getElementById("myPage"), { // allowTaint: true //跨域图片 useCORS: true, //跨域图片， }).then(function (canvas) { let contentWidth = canvas.width; //内容宽度 let contentHeight = canvas.height; //内容高度 let pageHeight = (contentWidth / 555.28) * 841.89; //一页pdf显示html页面生成的canvas高度; let leftHeight = contentHeight; //剩余内容高度 let position = 20; //距离顶部位置 let imgWidth = 555.28; //img宽度 let imgHeight = (555.28 / contentWidth) * contentHeight; //img高度 let pageData = canvas.toDataURL("image/jpeg", 1.0); //生成一张图片 let PDF = new jsPDF("", "pt", "a4"); //A4纸，纵向 if (leftHeight < pageHeight) { //内容未超过一页 PDF.addImage(pageData, "JPEG", 20, 20, imgWidth, imgHeight); //添加图片 } else { while (leftHeight > 0) { PDF.addImage(pageData, "JPEG", 20, position, imgWidth, imgHeight); leftHeight -= pageHeight; position -= 841.89; if (leftHeight > 0) { PDF.addPage(); } } } PDF.save("hello" + ".pdf"); }); }, }, }; </script> https://nodjoy.com/note/202208/make-deb.html 笔记 deb deb包的打包流程 以打包二进制文件为例 创建目录 mkdir make-deb cd make-deb mkdir -p opt/mydeb/bin 将准备好的二进制文件放入opt/mydeb/bin目录 创建DEBIAN目录 mkdir DEBIAN 创建DEBIAN/control文件 cat > DEBIAN/control << EOF Package: mydeb Version: 1.0.0 Section: base Priority: optional Architecture: amd64 Depends: Maintainer: zhangyong < Description: mydeb EOF 创建DEBIAN/postinst文件 cat > DEBIAN/postinst << EOF #!/bin/bash echo "postinst" EOF 创建DEBIAN/postrm文件 cat > DEBIAN/postrm << EOF #!/bin/bash echo "postrm" EOF 创建DEBIAN/preinst文件 cat > DEBIAN/preinst << EOF #!/bin/bash echo "preinst" EOF 创建DEBIAN/prerm文件 cat > DEBIAN/prerm << EOF #!/bin/bash echo "prerm" EOF 说明： DEBIAN/control文件：包的基本信息 DEBIAN/preinst文件：安装前执行的脚本 DEBIAN/postinst文件：安装后执行的脚本 DEBIAN/prerm文件：卸载前执行的脚本 DEBIAN/postrm文件：卸载后执行的脚本 打包 sudo dpkg -b make-deb mydeb.deb https://nodjoy.com/note/202208/ssl.html 笔记 opensslhttps 准备工作 环境 OS: Ubuntu/Debian 软件: openssl libnss3-tools certutil 浏览器: Chrome Edge 360安全浏览器 生成自签名证书 1.使用廖雪峰的脚本 2.参考这篇文章中的脚本 证书导入 1.安装certutil sudo apt install libnss3-tools 2.导入根证书 sudo certutil -d sql:$HOME/.pki/nssdb -A -t "C,," -n NodJoy -i ~/your/ca/path/CA.crt 3.certutil的其它命令 # 查看证书列表 certutil -L -d sql:$HOME/.pki/nssdb # 删除证书 certutil -D -d sql:$HOME/.pki/nssdb -n NodJoy 服务端nginx配置 server { listen 443 ssl; server_name nodjoy.com; ssl_certificate /etc/nginx/ssl/nodjoy.com.crt; ssl_certificate_key /etc/nginx/ssl/nodjoy.com.key; ssl_session_timeout 5m; ssl_protocols TLSv1 TLSv1.1 TLSv1.2; ssl_ciphers HIGH:!aNULL:!MD5; ssl_prefer_server_ciphers on; location / { root /var/www/nodjoy.com; index index.html index.htm; } } 编辑hosts文件,添加域名解析 sudo vim /etc/hosts 浏览器访问站点 https://nodjoy.com/share/202208/aes-lib.html 分享 AES Golang与PHP的AES加密解密互转 使用Github上的mervick/aes-everywhere加密库 mervick/aes-everywhere还支持Python、javascript等其它语言 Golang的使用 go get github.com/mervick/aes-everywhere import "github.com/mervick/aes-everywhere/go/aes256" // encryption encrypted := aes256.Encrypt("TEXT", "PASSWORD") // decryption decrypted := aes256.Decrypt(encrypted, "PASSWORD") PHP的使用 composer require mervick/aes-everywhere use mervick\aesEverywhere\AES256; // encryption $encrypted = AES256::encrypt("TEXT", "PASSWORD"); // decryption $decrypted = AES256::decrypt($encrypted, "PASSWORD"); https://nodjoy.com/note/202207/duration.html 笔记 PHPm3u8MP4 PHP获取mp4视频时长 使用getid3获取mp4视频时长(同样适用于mp3等其他媒体文件) $getid3 = new getID3; $file = './test.mp4'; $info = $getid3->analyze($file); $playtime_seconds = $info['playtime_seconds']; $duration = gmdate("H:i:s", $playtime_seconds); //将秒换算为分钟 PHP获取m3u8视频时长 读取m3u8文件获取视频时长 $file_url = 'https://example.com/test.m3u8'; //m3u8视频地址 $vtime = $this->getDuration($file_url); //获取文件时长 $duration = gmdate("H:i:s", $vtime); //将秒换算为分钟 function getDuration($file_url) { try { // 忽略ssl证书验证 $stream_opts = [ "ssl" => [ "verify_peer" => false, "verify_peer_name" => false, ] ]; $res = file_get_contents($file, false, stream_context_create($stream_opts)); } catch (\ErrorException $e) { return 0; } // preg_match_all("/\EXTINF:(.*?)\,/i", $res, $arr); // $res = array_sum($arr[1]); preg_match_all('/\d+[.]\d+/', $res, $arr); $res = array_sum($arr[0]); return (int)$res; } https://nodjoy.com/leaf/202207/harbor.html 技术 Harbordockerdocker-compose 准备工作 环境 OS: CentOS 7.6 安装所需软件 Docker Docker-Compose 其它 域名 https证书 安装Harbor 下载安装包 解压安装包并进入安装目录 tar -zxvf harbor-offline-installer-v2.5.2.tgz cd harbor 编辑harbor.yaml文件 cp harbor.yml.tmpl harbor.yml vi harbor.yml 根据实际情况修改harbor.yaml文件中的配置项,主要是https相关： hostname: hub.nodjoy.com # https related config https: # https port for harbor, default is 443 port: 443 # The path of cert and key files for nginx certificate: /opt/certs/hub.nodjoy.com.pem private_key: /opt/certs/hub.nodjoy.com.key # ------其它配置已省略------- 执行安装并启动Harbor ./prepare && ./install.sh 启动成功后即可使用域名访问Harbor 构建镜像并push到自己的私有Harbor 构建一个简单的ubuntu镜像并push到自己的私有Harbor 创建Dockerfile文件 FROM ubuntu:22.04 WORKDIR "/application" COPY ["./sources.list", "/etc/apt/"] RUN apt-get update \ && apt-get clean; rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* /usr/share/doc/* 构建镜像 docker build -t nodjoy/myubuntu:1.0.0 . 标记镜像 docker tag nodjoy/myubuntu:1.0.0 hub.nodjoy.com/myhub/myubuntu:1.0.0 登录Harbor并push镜像 docker login -u admin -p Harbor12345 hub.nodjoy.com docker push hub.nodjoy.com/myhub/myubuntu:1.0.0 推送成功后即可在管理后台查看镜像 https://nodjoy.com/leaf/202206/nodejs-docker.html 技术 nodejsdockerdocker-compose 环境 OS: Ubuntu 软件: docker、docker-compose 目录结构 docker-compose.yml文件 version: "2" services: mysql: image: mysql:8.0.19 container_name: mysql restart: always volumes: - ./data/mysql:/var/lib/mysql # mysql数据文件目录 ports: - 33066:3306 environment: - MYSQL_ROOT_PASSWORD=123456 nodejs: image: node:latest container_name: nodejs working_dir: /application restart: always volumes: - ./application:/application command: bash -c "cd /application/lincms-koa/ && npm run start:dev" # 进入项目目录并使用npm运行 depends_on: - mysql # 依赖mysql服务 ports: - 5000:5000 部署nodejs项目-以lincms-koa为例 进入到application目录 cd application 获取工程项目 git clone https://github.com/TaleLin/lin-cms-koa.git lincms-koa 安装依赖 cd lincms-koa npm install 修改数据库配置项app/config/secure.js,根据自己实际情况修改以下配置: module.exports = { db: { database: "lin-cms", host: "192.168.153.128", port: 33066, username: "root", password: "123456", logging: false } }; 启动项目 sudo docker-compose up -d 导入数据 新建数据库lin-cms并导入lincms-koa目录下的schema.sql文件 访问5000端口测试是否部署成功 https://nodjoy.com/leaf/202205/lnmp-docker.html 技术 LNMPdockerdocker-compose 环境 OS: Ubuntu 软件: docker、docker-compose 目录结构 我的目录结构 创建docker-compose.yml文件 version: "2" services: php-fpm: image: phpdockerio/php74-fpm container_name: php74 working_dir: /application restart: always volumes: - ./application:/application - ./conf/php-fpm/php.ini:/etc/php/7.4/fpm/php.ini #php.ini配置文件映射 ports: - 9000:9000 nginx: image: nginx:alpine container_name: nginx restart: always working_dir: /application volumes: - ./application:/application #nginx站点配置文件 - ./conf/nginx/conf.d/phpinfo.conf:/etc/nginx/conf.d/phpinfo.conf # - ./conf/nginx/conf.d/site01.conf:/etc/nginx/conf.d/site01.conf # - ./conf/nginx/conf.d/site02.conf:/etc/nginx/conf.d/site02.conf # ssl # - ./conf/ssl/example.crt:/etc/nginx/ssl/example.crt # - ./conf/ssl/example.key:/etc/nginx/ssl/example.key ports: - 8080:80 - 8081:8081 mysql: image: mysql:8.0.19 container_name: mysql restart: always volumes: - ./data/mysql:/var/lib/mysql ports: - 33066:3306 environment: - MYSQL_ROOT_PASSWORD=123456 nginx站点配置文件 以phpinfophpinfo.conf为例： server { listen 8081; root /application/phpinfo; index index.html index.htm index.php; charset utf-8; client_max_body_size 2048M; location / { if (!-e $request_filename) { rewrite ^(.*)$ /index.php?s=/$1 last; break; } } location = /favicon.ico { access_log off; log_not_found off; } location = /robots.txt { access_log off; log_not_found off; } access_log off; error_log /var/log/nginx/phpinfo-error.log error; sendfile off; location ~ \.php$ { fastcgi_split_path_info ^(.+\.php)(/.+)$; fastcgi_pass php74:9000; #注意此处fastcgi_pass的配置,这个地方的php74是nginx容器连接php-fpm的容器 fastcgi_index index.php; include fastcgi_params; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; fastcgi_intercept_errors off; fastcgi_buffer_size 16k; fastcgi_buffers 4 16k; fastcgi_connect_timeout 300; fastcgi_send_timeout 300; fastcgi_read_timeout 300; } location ~ /\.ht { deny all; } } 使用docker-compose一键启动 执行命令启动 #一键启动LNMP sudo docker-compose up -d #一键关闭LNMP sudo docker-compose down 启动后,访问站点成功 https://nodjoy.com/note/20220324/rpmrebuild.html 笔记 rpmrpmrebuild rpmrebuild的使用 安装rpmrebuild yum install rpmrebuild 制作rpm包过程较为麻烦，此处使用rpmrebuild去将本机已安装好的nginx包进行重新打包，用于下次安装部署 修改nginx的配置文件如/etc/nginx/nginx.conf 重新打包 rpmrebuild nginx 执行后文件会生成于/root/rpmbuild/RPMS/x86_64/nginx.**.rpm https://nodjoy.com/note/20220322/make-rpm.html 笔记 rpmrpmbuild rpmbuild 安装rpmbuild yum install rpm-build 生成rpmbuild目录结构 使用非root账户 rpmbuild -ba nginx.spec //会报错，没有文件或目录 此时会生成rpmbuild工作目录 编写SEPC工程文件 在rpmbuild/SEPCS目录新建SPEC工程文件 vi webrtc-server.spec 文件内容示例： Name: webrtc-server Version: 1.0 Release: 1.0 Summary: webrtc-server Group: System License: GPL BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root Requires: etcd redis supervisor %description webrtc-server %prep echo "do not" %install cp -ar %{_sourcedir}/opt %{buildroot}/ chmod 755 %{buildroot}/opt/dispatch/bin/dispatch chmod 755 %{buildroot}/opt/signal_a/bin/sdn-signal-server chmod 755 %{buildroot}/opt/record/bin/sdn-record-server chmod 755 %{buildroot}/opt/record/data mkdir -p %{buildroot}/var/log/signal_a install -m 755 %{_sourcedir}/server.log %{buildroot}/var/log/signal_a/server.log mkdir -p %{buildroot}/var/log/record install -m 755 %{_sourcedir}/server.log %{buildroot}/var/log/record/server.log mkdir -p %{buildroot}/etc/supervisord.d install -m 755 %{_sourcedir}/dispatch.conf %{buildroot}/etc/supervisord.d/dispatch.conf install -m 755 %{_sourcedir}/signal-a.conf %{buildroot}/etc/supervisord.d/signal-a.conf install -m 755 %{_sourcedir}/record.conf %{buildroot}/etc/supervisord.d/record.conf %files %defattr(-,root,root,-) /opt/dispatch /opt/signal_a /opt/record %doc /etc/supervisord.d/dispatch.conf /etc/supervisord.d/signal-a.conf /etc/supervisord.d/record.conf /var/log/record/server.log /var/log/signal_a/server.log %pre %post supervisorctl update %preun rm -rf /opt/dispatch rm -rf /opt/signal_a rm -rf /opt/record rm -rf /var/log/signal_a rm -rf /var/log/record %changelog * Wed Jan 19 2022 <157****0273@126.com> - 1.0.0.1 - your writing 将需要用到的二进制程序及相关配置文件上传至SOURCES目录 SOURCES目录下文件内容及结构： 执行工程文件生成rpm包 rpmbuild -bb webrtc.spec 成功执行后将会在rpmbuild/RPMS目录生成rpm文件 https://nodjoy.com/leaf/20211110/lnmp.html 技术 LNMPPHP 安装Nginx sudo apt install nginx 安装MySQL sudo apt install mysql-server-5.7 添加php源 sudo add-apt-repository ppa:ondrej/php sudo apt update 也可以使用ppa国内源 deb https://launchpad.proxy.ustclug.org/ondrej/php/ubuntu focal main 安装PHP sudo apt install php7.4 sudo apt install php7.4-fpm 安装PHP扩展 sudo apt install php7.4-xml php7.4-json php7.4-mysql php7.4-curl php7.4-gd php7.4-pdo php7.4-mbstring php7.4-mysqlnd php7.4-bcmath php7.4-zip php7.4-fileinfo php7.4-redis 设置MySQL用户名密码 #查看初始用户名和密码 cd /etc/mysql sudo cat debian.cnf #使用初始用户名密码登录mysql mysql -udebian-sys-maint -pGIOyPu42YoZEwRTe #设置密码 use mysql; update mysql.user set authentication_string='yourpassword' where user='root' and Host ='localhost'; update user set plugin="mysql_native_password" where user='root'; #设置允许远程登录 update user set host="%" where user='root'; flush privileges; quit; 配置Nginx多域名访问 进入/etc/nginx/conf.d目录 cd /etc/nginx/conf.d 新建站点配置 sudo vi mysite.com.conf server { listen 80; listen 443 ssl http2; server_name .tp5.test; root /www/mysite.com/public; index index.html index.htm index.php; charset utf-8; client_max_body_size 1000M; location / { if (!-e $request_filename) { rewrite ^(.*)$ /index.php?s=/$1 last; break; } } location = /favicon.ico { access_log off; log_not_found off; } location = /robots.txt { access_log off; log_not_found off; } access_log off; error_log /var/log/nginx/tp5.test-error.log error; sendfile off; location ~ \.php(.*)$ { fastcgi_split_path_info ^(.+\.php)(/.+)$; fastcgi_pass unix:/var/run/php/php7.4-fpm.sock; fastcgi_index index.php; include fastcgi_params; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; fastcgi_intercept_errors off; fastcgi_buffer_size 16k; fastcgi_buffers 4 16k; fastcgi_connect_timeout 300; fastcgi_send_timeout 300; fastcgi_read_timeout 300; } location ~ /\.ht { deny all; } ssl_certificate /etc/ssl/certs/mysite.com.crt; ssl_certificate_key /etc/ssl/certs/mysite.com.key; } 检查配置文件并重启Nginx sudo nginx -t sudo nginx -s reload https://nodjoy.com/leaf/202109/docker_err.html 技术 Dockermysql 环境 使用的环境是Windows10+homestead(VirtualBox) 启动过程 运行sudo docker-compose up -d 容器可以正常启动 运行sudo docker exec -it db-mysql bash进入mysql容器操作数据库报错：ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) 运行service mysql status查看mysql启动状态,发现服务未启动 运行sudo docker logs db-mysql查看容器启动日志: [ERROR] InnoDB: Operating system error number 95 in a file operation. [ERROR] InnoDB: Error number 95 means 'Operation not supported' [Note] InnoDB: Some operating system error numbers are described at http://dev.mysql.com/doc/refman/5.7/en/operating-system-error-codes.html [ERROR] InnoDB: File ./ib_logfile0: 'Linux aio' returned OS error 195. Cannot continue operation [ERROR] InnoDB: Cannot continue operation. 解决办法 start the container like this : docker run -it mysql --innodb_use_native_aio=0 add the command to your docker-compose file : command: --innodb_use_native_aio=0 add an option to your my.cnf file in your build innodb_use_native_aio=0 From stackoverflow By @AndrewD 附：我的docker-compose.yml文件 version: "2" services: mysql: image: docker-mysql57 container_name: db-mysql restart: always environment: - MYSQL_ROOT_PASSWORD=${MYSQL_ROOT_PASSWORD} - MYSQL_DATABASE=${MYSQL_DATABASE} - MYSQL_USER=${MYSQL_USER} - MYSQL_PASSWORD=${MYSQL_PASSWORD} volumes: - ./data/mysql:/var/lib/mysql ports: - 33066:3306 command: --innodb_use_native_aio=0 https://nodjoy.com/note/202105/installhd.html 笔记 LaravelHomesteadPHP 准备工作 环境 OS: Windows 10 安装所需软件 Git Vagrant VitrualBox xshell Navicat 生成SSH Key 在用户家目录运行： cd ~ ssh-keygen -t rsa -C "youemail@homestead.com" 此时，会生成以下的文件 安装Homestead (还可以直接前往Vagrant Cloud下载相应box文件) 打开命令终端以管理员权限运行，cd到用户根cd ~目录 运行命令： vagrant box add laravel/homestead 输入编号，选择vitrualbox选项 等待下载安装即可（现在国内的下载速度还是可以的，所以不用去找box文件啦） 完成后运行vagrant box list命令查看是否安装成功 配置Homestead 克隆homestead配置文件到用户家目录 cd ~ git clone https://github.com/laravel/homestead.git 执行命令bash init.sh初始化 cd homestead bash init.sh 配置Homestead.yaml文件 --- ip: "192.168.1.10" memory: 2048 cpus: 2 provider: virtualbox authorize: ~/.ssh/id_rsa.pub keys: - ~/.ssh/id_rsa folders: - map: D:\workspace /**自定义自己的工作目录(注释删除)**/ to: /home/vagrant/code sites: - map: homestead.test to: /home/vagrant/code/homestead/public - map: api.test to: /home/vagrant/code/shopApi/public - map: tp5.test to: /home/vagrant/code/tp5/public php: "7.2" /**指定php版本(注释内容删除)**/ type: thinkphp /**TP框架需指定thinkphp类型(为了支持pathinfo)(注释内容删除)**/ databases: - homestead - api features: - mysql: true - mariadb: false - postgresql: false - ohmyzsh: false - webdriver: false #services: # - enabled: # - "postgresql@12-main" # - disabled: # - "postgresql@11-main" # ports: # - send: 50000 # to: 5000 # - send: 7777 # to: 777 # protocol: udp 运行vagrant up命令，启动Homestead vagrant up xshell连接虚拟机的IP为yaml配置文件中的IP，用户名和密码均为vagrant Navicat连接MySQL数据库的IP为yaml配置文件中的IP，用户名为homestead，密码为secret 修改Homestead中PHP的版本 # 查看所有 php 版本和当前版本 sudo update-alternatives --display php # 执行后，会列出当前 php 所有版本和编号，输入编号，切换到执行的版本 sudo update-alternatives --config php # homestead 目录下有个 aliases 文件，这个文件中定义了一些可以直接在虚拟机中使用的命令，比如想切换到 7.0 版本直接执行 php70 即可 https://nodjoy.com/note/202105/phperror.html 笔记 PHP Ubuntu-使用宝塔面板安装PHP后启动报错：php: error while loading shared libraries: libcrypto.so.1.0.0: cannot open shared object file: No such file or directory 解决办法 前往http://security.ubuntu.com/ubuntu/pool/main/o/openssl1.0/找到合适的软件包 我这里选择libssl1.0-dev_1.0.2n-1ubuntu5_amd64.deb cd /usr/local/src sudo wget http://security.ubuntu.com/ubuntu/pool/main/o/openssl1.0/libssl1.0-dev_1.0.2n-1ubuntu5_amd64.deb sudo dpkg -i libssl1.0-dev_1.0.2n-1ubuntu5_amd64.deb 再次重启PHP成功 https://nodjoy.com/note/202104/docker.html 笔记 DockerUbuntu 环境配置 删除旧版本 sudo apt-get remove docker docker-engine docker.io containerd runc 更新apt包索引 sudo apt-get update 安装包以允许apt通过HTTPS使用存储库 sudo apt-get install apt-transport-https sudo apt-get install ca-certificates sudo apt-get install curl sudo apt-get install gnupg-agent sudo apt-get install software-properties-common 添加Docker的官方GPG密钥 curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add - 9DC8 5822 9FC7 DD38 854A E2D8 8D81 803C 0EBF CD88通过搜索指纹的最后8个字符，验证您现在拥有带指纹的密钥 sudo apt-key fingerprint 0EBFCD88 添加软件源 sudo add-apt-repository \ "deb [arch=amd64] https://download.docker.com/linux/ubuntu \ $(lsb_release -cs) \ stable" 更新apt索引 sudo apt-get update 执行安装 sudo apt-get install docker-ce docker-ce-cli containerd.io 通过运行hello-world 映像验证是否正确安装了Docker CE sudo docker run hello-world 查看docker版本 sudo docker version 进程维护 停止、启动、重启docker sudo systemctl start | stop | restart docker.service 加入开机自启 sudo systemctl enable docker 开机启动检测 sudo systemctl list-unit-files | grep docker Docker的升级维护 升级 sudo apt-get update 卸载 sudo apt-get purge docker-ce docker-ce-cli containerd.io docker docker.io sudo rm -rf /var/lib/docker sudo apt autoremove 账号权限 由于每次运行docker都要在命令前加sudo,下面设置当前登录账号执行docker命令方法 创建docker组 sudo groupadd docker 将当前用户添加到docker组 sudo usermod -aG docker $USER 注销账号并重新登录即可 镜像管理 搜索镜像 docker search nginx 安装镜像 docker pull nginx 查看镜像 docker images 删除镜像 docker rmi -f nginx 容器管理 查看运行的容器 docker ps 查看所有容器 docker ps -a 查看容器进程 docker top nginx 查看容器端口映射 docker port xx 查看容器元信息（如IP） docker inspect xx 查看容器日志 docker logs nginx 删除容器 docker rm -f xx https://nodjoy.com/note/202104/javascript.html 笔记 JavaScriptJS数组 类型转换 字符串 大部分数据类型都可以使用toString()函数转换为字符串 console.log(([1,2,3]).toString()); //1,2,3 也可以使用函数String转换为字符串 console.log(String([1,2,3])); 或者使用join连接为字符串 console.log([1,2,3].join("-")); //1-2-3 Array.from 使用Array.from可将类数组转换为数组，类数组指包含length属性或可迭代的对象。 let str = '你好上海'; console.log(Array.from(str)); //["你","好","上","海"] 为对象设置length属性后也可以转换为数组，但要下标为数值或数值字符串 let user = { 0: '张三', '1': 18, length: 2 }; console.log(Array.from(user)); //["张三", 18] 展开语法 数组合并 使用...可将数组展开为多个值。 let a = [1,2,3]; let b = ['a','nodjoy.com',...a]; console.log(b); //['a','nodjoy.com',1,2,3] 函数参数 使用展示语法可以替接收任意数量的参数 function live(...args){ console.log(args); } live(1,2,3,'nodjoy.com'); //[1,2,3,'nodjoy.com'] 解构赋值 基本使用 let [site,url] = ['nodjoy','nodjoy.com']; console.log(site); //nodjoy 剩余解构 //使用一个变量来接收剩余参数 let [a,...b] = ['nodjoy.com','beijing','shanghai']; console.log(a); //nodjoy.com console.log(b); //['beijing',shanghai] 字符串解构 const [...a] = 'nodjoy.com' console.log(a); //Array(13) 管理元素 向数组追加元素 let arr = [1,'nodjoy.com','nodjoy']; arr[arr.length] = 'dada'; console.log(arr); //[1,'nodjoy.com','nodjoy','dada'] 使用展开语法批量添加元素 let arr = [1,2,3,'listen']; let live = ['nodjoy.com']; live.push(...arr); console.log(live); //['nodjoy.com,1,2,3,'listen'] push 压入元素。返回值为数组元素的数量 let arr = ['site','nodjoy']; console.log(arr.push('apple','strawberry')); //4 console.log(arr); //['site','nodjoy','apple','strawberry'] pop 从末尾弹出元素，返回值为弹出的元素。 let arr = ['apple','strawberry','banana']; console.log(arr.pop()); //banana console.log(arr); //['apple','strawberry'] shift 从数组前面取出一个元素 let arr = ['apple','banana']; console.log(arr.shift()); //apple console.log(arr); //['banana'] unshift 从数组前面添加元素 let arr = ['apple','banana']; console.log(arr.unshift('strawberry','grape')); //4 console.log(arr); //['strawberry','grape','apple','banana'] fill 使用fill填充数组元素 let arr = Array(4).fill('apple'); console.log(arr); //['apple','apple','apple','apple'] 指定填充位置 let arr = [1,2,3,4]; arr.fill("nodjoy.com",1,2); console.log(arr); //[1,'nodjoy.com',3,4] slice 数组截取,不会改变原数组 let arr = [0,1,2,3,4,5]; console.log(arr.slice(1,3)); //[1,2] splice splice可以添加、删除、替换数组中的元素，会对原数组进行改变，返回值为删除的元素 删除数组元素第一个参数为从哪开始删除，第二个参数为删除的数量。 let arr = [0, 1, 2, 3, 4, 5, 6]; console.log(arr.splice(1, 3)); //返回删除的元素 [1, 2, 3] console.log(arr); //删除数据后的原数组 [0, 4, 5, 6] 通过修改length删除最后一个元素 let arr = ["apple", "banana"]; arr.length = arr.length - 1; console.log(arr); 通过指定第三个参数来设置在删除位置添加的元素 let arr = [0, 1, 2, 3, 4, 5, 6]; console.log(arr.splice(1, 3, 'apple', 'strawberry')); //[1, 2, 3] console.log(arr); //[0, "apple", "strawberry", 4, 5, 6] 向末尾添加元素 let arr = [0, 1, 2, 3, 4, 5, 6]; console.log(arr.splice(arr.length, 0, 'apple', 'strawberry')); //[] console.log(arr); // [0, 1, 2, 3, 4, 5, 6, "apple", "strawberry"] 向数组前添加元素 let arr = [0, 1, 2, 3, 4, 5, 6]; console.log(arr.splice(0, 0, 'apple', 'strawberry')); //[] console.log(arr); // ["apple", "strawberry"，0, 1, 2, 3, 4, 5, 6] 数组的合并与拆分 join 使用join连接成字符串 let arr = [1,'cms','apple']; console.log(arr.join('-')); //1-cms-apple split split 将字符串分割成数组 let price = "22,28,aa"; console.log(price.split(",")); //["22","28","aa"] concat concat用于连接两个或多个数组 let arr = ["apple", "strawberrry"]; let listen = [1, 2]; let live = [3, 4]; console.log(array.concat(listen, live)); //["apple", "strawberrry", 1, 2, 3, 4] 也可使用展开语法实现连接 console.log([...arr,...listen,...live]); copyWithin copyWithin从数组中复制一部分到数组中的其他位置 array.copyWithin(target,start,end); /* *参数说明 *target--必需。复制到指定目标索引位置。 *start--可选。元素复制的起始位置。 *end--可选。停止复制的索引位置 (默认为 array.length)。如果为负值，表示倒数。 */ 查找元素 indexOf indexOf从前向后查找元素出现的位置，如果找不到返回-1 let arr = [7,3,5,8,9]; console.log(arr.indexOf(3)); //1 console.log(arr.indexOf(2)); //-1 includes 使用includes查找字符串，返回值为布尔类型，方便判断。 let arr = [7,3,2,6]; console.log(arr.includes(6)); //true find find方法找到后会把值返回出来(返回第一次找到的值)，如果找不到返回值为undefined findIndex findIndex与find的区别是返回索引值 数组排序 reverse 反转数组顺序 let arr = [1,4,2,9]; console.log(arr.reverse()); //[9,2,4,1] sort 默认从小到大排序 let arr = [1,4,2,9]; console.log(arr.sort()); //[1,2,4,9] 使用排序函数从大到小排序 let arr = [1, 4, 2, 9]; console.log(arr.sort(function (v1, v2) { return v2 - v1; })); //[9, 4, 2, 1] 循环遍历 for let lessons = [ {title: '媒体查询响应式布局',category: 'css'}, {title: 'FLEX 弹性盒模型',category: 'css'}, {title: 'MYSQL多表查询随意操作',category: 'mysql'} ]; for (let i = 0; i < lessons.length; i++) { lessons[i] = `课程: ${lessons[i].title}`; } console.log(lessons); forEach let lessons = [ {title: '媒体查询响应式布局',category: 'css'}, {title: 'FLEX 弹性盒模型',category: 'css'}, {title: 'MYSQL多表查询随意操作',category: 'mysql'} ]; lessons.forEach((item, index, array) => { item.title = item.title.substr(0, 5); }); console.log(lessons); for/in let lessons = [ {title: '媒体查询响应式布局',category: 'css'}, {title: 'FLEX 弹性盒模型',category: 'css'}, {title: 'MYSQL多表查询随意操作',category: 'mysql'} ]; for (const key in lessons) { console.log(`标题: ${lessons[key].title}`); } for/of let lessons = [ {title: '媒体查询响应式布局',category: 'css'}, {title: 'FLEX 弹性盒模型',category: 'css'}, {title: 'MYSQL多表查询随意操作',category: 'mysql'} ]; for (const item of lessons) { console.log(` 标题: ${item.title} 栏目: ${item.category == "css" ? "前端" : "数据库"} `); } 实现取数组最大值的方法 function arrayMax(array) { let max = array[0]; for (const elem of array) { max = max > elem ? max : elem; } return max; } console.log(arrayMax([1, 3, 2, 9])); 扩展方法 every every 用于递归的检测元素，要所有元素操作都要返回真结果才为真。 实现标题的关键词检查 let words = ['js', 'css', 'php']; let title = 'dfgdsgdsfdgjs'; let state = words.every(function (item, index, array) { return title.indexOf(item) >= 0; }); if (state == false) console.log('标题必须包含所有关键词'); some 使用 some 函数可以递归的检测元素，如果有一个返回true，表达式结果就是真。第一个参数为元素，第二个参数为索引，第三个参数为原数组。 使用 some 检测规则关键词的示例，如果匹配到一个词就提示违规。 let words = ['ss', '蛤蟆', 'wa']; let title = 'wawawawawwww' let state = words.some(function (item, index, array) { return title.indexOf(item) >= 0; }); if (state) console.log('标题含有违规关键词'); filter 使用 filter 可以过滤数据中元素 下面是获取所有在CSS栏目的课程。 let lessons = [ {title: '媒体查询响应式布局',category: 'css'}, {title: 'FLEX 弹性盒模型',category: 'css'}, {title: 'MYSQL多表查询随意操作',category: 'mysql'} ]; let cssLessons = lessons.filter(function (item, index, array) { if (item.category.toLowerCase() == 'css') { return true; } }); console.log(cssLessons); map 使用 map 映射可以在数组的所有元素上应用函数，用于映射出新的值。 获取数组所有标题组合的新数组 let lessons = [ {title: '媒体查询响应式布局',category: 'css'}, {title: 'FLEX 弹性盒模型',category: 'css'}, {title: 'MYSQL多表查询随意操作',category: 'mysql'} ]; console.log(lessons.map(item => item.title)); 为所有标题添加上 APPLE let lessons = [ {title: '媒体查询响应式布局',category: 'css'}, {title: 'FLEX 弹性盒模型',category: 'css'}, {title: 'MYSQL多表查询随意操作',category: 'mysql'} ]; lessons = lessons.map(function (item, index, array) { item.title = `[APPLE] ${item['title']}`; return item; }); console.log(lessons); reduce 使用 reduce 与 reduceRight 函数可以迭代数组的所有元素，reduce 从前开始 reduceRight 从后面开始 统计元素出现的次数 function countArrayELem(array, elem) { return array.reduce((total, cur) => (total += cur == elem ? 1 : 0), 0); } let numbers = [1, 2, 3, 1, 5]; console.log(countArrayELem(numbers, 1)); //2 取数组中的最大值 function arrayMax(array) { return array.reduce( (max, elem) => (max > elem ? max : elem), array[0] ); } console.log(arrayMax([1, 3, 2, 9])); 取价格最高的商品 let cart = [ { name: "iphone", price: 12000 }, { name: "imac", price: 25000 }, { name: "ipad", price: 3600 } ]; function maxPrice(array) { return array.reduce( (goods, elem) => (goods.price > elem.price ? goods : elem), array[0] ); } console.log(maxPrice(cart)); 计算购物车中的商品总价 let cart = [ { name: "iphone", price: 12000 }, { name: "imac", price: 25000 }, { name: "ipad", price: 3600 } ]; const total = cart.reduce( (total, goods) => total += goods.price, 0 ); console.log(total); //40600 获取价格超过1万的商品名称 let goods = [ { name: "iphone", price: 12000 }, { name: "imac", price: 25000 }, { name: "ipad", price: 3600 } ]; function getNameByPrice(array, price) { return array.reduce((goods, elem) => { if (elem.price > price) { goods.push(elem); } return goods; }, []).map(elem => elem.name); } console.table(getNameByPrice(goods, 10000)); 实现数组去重 let arr = [1, 2, 6, 2, 1]; let filterArr = arr.reduce((pre, cur, index, array) => { if (pre.includes(cur) === false) { pre = [...pre, cur]; } return pre; }, []); console.log(filterArr); // [1,2,6] https://nodjoy.com/leaf/202103/axios-soap.html 技术 apiaxiossoapnode.jskoa2 axios请求云之讯短信接口实现短信发送 安装axios npm install axios --save 方法实现 static async sendMessage(ctx){ let param = Math.random().toString().substr(2, 4); //生成四位随机数 let phone = '157********'; const url = 'https://open.ucpaas.com/ol/sms/sendsms'; const axios = require('axios'); let sendRe = await axios({ method: 'post', url: url, data: { sid: "4rtw******", token: "5fjg******", appid: "8aj5******", templateid: '2780*', param: param, mobile: phone, //uid: config.uid }, headers: { "Content-Type": "application/json;charset=utf-8", "Accept": "application/json" } }); if(sendRe.data.code == '000000'){ ctx.json({ code:11, message:"发送成功" }); }else{ ctx.json({ code:22, message:"短信验证码发送失败，"+sendRe.data.code }) } } soap请求WebService服务器数据 安装soap npm install soap --save 发起soap请求 async function GetProjectInfo () { var url = 'http://digitcode.yesno.com.cn/CCNOutService/OutDigitCodeService.asmx?wsdl'; var args = { userID :'b6cf5d3*******1b3e', userPwd:'50e3*******066', ip:'101.*****', acCode:"20210310****", language:'1', channel:'X' }; return new Promise(function (results) { const soap = require('soap'); soap.createClient(url, function(err, client) { client.Get_AcCodeInfoInterface(args, function(err, result) { if (err) { results(err) }else { results(result) } }); }); }); } module.exports = { GetProjectInfo }; 获取到WebService返回的Xml数据 let resultProductInfo = await GetProjectInfo(); let xmlReply = resultProductInfo.reply; 解析Xml数据 安装xmlreader npm install xmlreader --save xml数据转json对象实现 async function XmlToJson (xmlString) { return new Promise(function (result){ var xmlreader = require("xmlreader"); xmlreader.read(xmlString, function(errors, response){ if(null !== errors ){ result(errors); } let datas={}; datas.reply = response.messageinfo.item.reply.text(); datas.p_code = response.messageinfo.item.zcode.text(); datas.cuanhuocode = response.messageinfo.item.cuanhuocode.text(); datas.productcode = response.messageinfo.item.productcode.text(); result(datas); }); }); } module.exports = { XmlToJson }; https://nodjoy.com/note/202103/lincms.html 笔记 lincmsSequelizekoanode.js Sequelize事务操作 let transaction; //事务开始 try { transaction = await sequelize.transaction(); const replace_record = { p_code: v.get('path.p_code'), p_type: v.get('path.p_type') }; const { id: record_id } = await ReplaceRecordModel.create(replace_record, { transaction }); await WxReplacesheetsModel.create( { record_id, name: v.get('path.name'), phone: v.get('path.phone'), province: v.get('path.province'), city: v.get('path.city'), district: v.get('path.district'), question: v.get('path.question'), status: 1 }, { transaction } ); await transaction.commit(); //事务提交 ctx.json({ code:11, message:"创建成功" }); }catch (error) { console.log(error) await transaction.rollback(); //事务回滚 throw new Failed({ code:22, message:"创建失败", }); } 更新update await ReplaceRecordModel.update({status:2},{ where:{ id:1 } }); koa读取Excel文件 const xlsx = require('xlsx'); const fs = require('fs'); const path = require('path'); async function getExcelObjs (arr) { const file = 'app/assets/'+arr[0].path; // 获取上传的excel文件路径 const reader = fs.createReadStream(file); // 创建可读流 const upStream = fs.createWriteStream(file); // 创建可写流 const getRes = await getFile(reader, upStream); //等待数据存储完成 const datas = []; //可能存在多个sheet的情况 if (!getRes) { const workbook = xlsx.readFile(file); const sheetNames = workbook.SheetNames; // 返回 ['sheet1', ...] for (const sheetName of sheetNames) { const worksheet = workbook.Sheets[sheetName]; const data = xlsx.utils.sheet_to_json(worksheet); datas.push(data); } //删除文件 fs.unlink(file,function(error){ if(error){ console.log(error); return false; } }); return { status: true, datas }; } else { return { status: false, msg: 'error message...' }; } } function getFile (reader, upStream) { return new Promise(function (result) { let stream = reader.pipe(upStream); // 可读流通过管道写入可写流 stream.on('finish', function (err) { result(err); }); }); } module.exports = { getExcelObjs }; https://nodjoy.com/leaf/202102/bbr.html 技术 Linuxbbr 安装bbr加速 进入/usr/local/src目录，下载bbr.sh文件 cd /usr/local/src sudo wget --no-check-certificate https://github.com/teddysun/across/raw/master/bbr.sh 添加可执行权限 sudo chmod +x bbr.sh 执行该脚本文件,安装完成后提示按y重启系统 sudo sh bbr.sh 判断BBR加速有没有开启成功。输入以下命令： sysctl net.ipv4.tcp_available_congestion_control 如果返回值为：net.ipv4.tcp_available_congestion_control = bbr cubic reno则说明已经开启成功了 https://nodjoy.com/leaf/202101/kuaidiapi.html 技术 快递APIPHP快递接口 申请快递查询API授权key kuaidi.com SDK文件KDApi.php /** * 物流信息查询接口SDK */ class KDAPI{ private $_APPKEY = 'twde5d8ef***********'; //改为您自己的key private $_APIURL = "https://highapi.kuaidi.com/openapi-querycountordernumber.html?"; private $_show = 0; private $_muti = 0; private $_order = 'desc'; /** * 获得的快递网接口查询KEY。 * @param string $key */ public function KuaidiAPi($key){ $this->_APPKEY = $key; } /** * 设置数据返回类型。0: 返回 json 字符串; 1:返回 xml 对象 * @param number $show */ public function setShow($show = 0){ $this->_show = $show; } /** * 设置返回物流信息条目数, 0:返回多行完整的信息; 1:只返回一行信息 * @param number $muti */ public function setMuti($muti = 0){ $this->_muti = $muti; } /** * 设置返回物流信息排序。desc:按时间由新到旧排列; asc:按时间由旧到新排列 * @param string $order */ public function setOrder($order = 'desc'){ $this->_order = $order; } /** * 查询物流信息，传入单号， * @param 物流单号 $nu * @param 公司简码 $com 要查询的快递公司代码,不支持中文,具体请参考快递公司代码文档。 不填默认根据单号自动匹配公司。注:单号匹配成功率高于 95%。 * @throws Exception * @return array */ public function query($nu, $com=''){ if (function_exists('curl_init') == 1) { $url = $this->_APIURL; $dataArr = array( 'id' => $this->_APPKEY, 'com' => $com, 'nu' => $nu, 'show' => $this->_show, 'muti' => $this->_muti, 'order' => $this->_order ); foreach ($dataArr as $key => $value) { $url .= $key . '=' . $value . "&"; } // echo $url; $curl = curl_init(); curl_setopt($curl, CURLOPT_URL, $url); curl_setopt($curl, CURLOPT_HEADER, 0); curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); curl_setopt($curl, CURLOPT_TIMEOUT, 10); $kuaidresult = curl_exec($curl); curl_close($curl); if($this->_show == 0){ $result = json_decode($kuaidresult, true); }else{ $result = $kuaidresult; } return $result; }else{ throw new Exception("Please install curl plugin", 1); } } } 使用示例example.php include 'KDApi.php'; $kuaidichaxun = new KDAPI(); //设置返回格式。 0: 返回 json 字符串; 1:返回 xml 对象 //$kuaidichaxun->setShow(1); //可选，默认为 0 返回json格式 //返回物流信息条目数。 0:返回多行完整的信息; 1:只返回一行信息 //$kuaidichaxun->setMuti(1); //可选，默认为0 //设置返回物流信息排序。desc:按时间由新到旧排列; asc:按时间由旧到新排列 //$kuaidichaxun->setOrder('asc'); //查询 $result = $kuaidichaxun->query('YT21212*****', 'yuantong'); var_dump($result); 运行结果 https://nodjoy.com/leaf/20210122/linux-firewalld.html 技术 firewalld防火墙 查看当前开了哪些端口其实一个服务对应一个端口，每个服务对应/usr/lib/firewalld/services下面一个xml文件 firewall-cmd --list-services 通过firewall-cmd --get-services命令查看可以打开的服务有哪些 新建并编辑vpn-port.xml文件 开放18001端口 <?xml version="1.0" encoding="utf-8"?> <service> <short>VPN Port</short> <description>VPN Port 18001</description> <port protocol="tcp" port="18001"/> </service> 可以通过下面的命令添加一个服务到firewalld firewall-cmd --add-service=vpn-port //vpn-port换成想要开放的service,仅当前有效 firewall-cmd --permanent --add-service=vpn-port //加上--permanent,表示系统重启后也有效 重启防火墙即可生效 systemctl restart firewalld.service https://nodjoy.com/leaf/202101/crontab_linux.html 技术 定时任务crontab crontab基本命令 crontab -l //查看定时任务 crontab -e //编辑定时任务 crontab -r //删除定时任务 crontab常用写法 每分钟执行 */1 * * * * command 每小时0分执行 0 * * * * command 每天0点执行 0 0 * * * command 每周日0点执行 0 0 * * 0 command 每月1号执行 0 0 1 * * command 每年1月1日执行 0 0 1 1 * command 使用crontab定时任务备份数据库 首先编写shell脚本 back_mysql.sh t = `date '+%Y-%m-%d %H:%M:%S'` //使用时间做文件名 mysqldump -h127.0.0.1 -uusername -ppwd dbname > /var/back_mysql/dbname"$t".sql 将shell脚本加入到定时任务 00 6 * * * /opt/back_mysql.sh //每天六点备份数据库 使用定时任务定期更新数据库表字段 //每年1月1日更新年龄字段，让 age + 1 0 0 1 1 * mysql -uusername -ppwd -e "use dbname;UPDATE tablename SET age = age + 1;quit;" https://nodjoy.com/share/202101/zhanzhangurl/ 分享 SEO 百度: https://ziyuan.baidu.com 谷歌: https://analytics.google.com 腾讯: https://mta.qq.com 搜狗: http://zhanzhang.sogou.com 360: http://zhanzhang.so.com 必应: https://www.bing.com/webmasters/homepage 头条: https://zhanzhang.toutiao.com 神马: https://zhanzhang.sm.cn https://nodjoy.com/leaf/2020/12/15/wechat01/ 杂记 微信开发模板消息PHP PHP微信公众号实现发送模板消息 $appid = "wxb7729*******"; $appsecret = "8b99**************"; $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$appid&secret=$appsecret"; $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); $output = curl_exec($ch); curl_close($ch); $jsoninfo = json_decode($output, true); $ACCESS_TOKEN = $jsoninfo["access_token"]; $data=array( 'touser'=>"oaIgKt*********", //要发送给用户的openid 'template_id'=>"gSxmffQ*********",//改成自己的模板id，在微信后台模板消息里查看 'url'=>"https://nodjoy.com", //用户点击要跳转的url 'data'=>array( 'first'=>array( 'value'=>"亲爱的同学，您有直播提醒，请查阅。", 'color'=>"#000" ), 'keyword1'=>array( 'value'=>"教授直播", 'color'=>"#f00" ), 'keyword2'=>array( 'value'=>"教授", 'color'=>"#173177" ), 'keyword3'=>array( 'value'=>"2020-03-25 19:00", 'color'=>"#3d3d3d" ), 'remark'=>array( 'value'=>"戳进来可以查看详情>>>", 'color'=>"#3d3d3d" ), ) ); $json_data=json_encode($data);//转化成json数组让微信可以接收 $url="https://api.weixin.qq.com/cgi-bin/message/template/send?access_token=".$ACCESS_TOKEN;//模板消息请求URL $res=https_request($url,urldecode($json_data));//请求开始 $res=json_decode($res,true); if($res['errcode']==0 && $res['errcode']=="ok"){ echo "发送成功！"; } //curl请求函数 function https_request($url,$data = null){ $curl = curl_init(); curl_setopt($curl, CURLOPT_URL, $url); curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE); curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE); if (!empty($data)){ curl_setopt($curl, CURLOPT_POST, 1); curl_setopt($curl, CURLOPT_POSTFIELDS, $data); } curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); $output = curl_exec($curl); curl_close($curl); return $output; } 发送成功 https://nodjoy.com/note/2020/12/11/koa_import/ 笔记 Koa2Node.js 安装引入excel-export包 npm install excel-export --save const nodeExcel = require('excel-export'); 实现导出方法 /** * 数据导出--导出方法 * @param resultData [{},{},] //从数据库中获取的数据格式 */ static async exportData(resultData,ctx){ let conf ={}; conf.name = "worksheet";//表格名 let alldata = new Array(); for(let i = 0;i<resultData.length;i++){ let arr = new Array(); arr.push(resultData[i].name); arr.push(resultData[i].phone); arr.push(resultData[i].age); alldata.push(arr); } //决定列名和类型 conf.cols = [{ caption:'姓名', type:'string' },{ caption:'手机号', type:'string' },{ caption:'年龄', type:'string' }]; conf.rows = alldata;//填充数据 let result = nodeExcel.execute(conf); //最后3行express框架是这样写 // res.setHeader('Content-Type', 'application/vnd.openxmlformats'); // res.setHeader("Content-Disposition", "attachment; filename=" + "Report.xlsx"); // res.end(result, 'binary'); ctx.set('Content-Type', 'application/vnd.openxmlformats'); ctx.set("Content-Disposition", "attachment; filename=" + "Report.xlsx"); ctx.body=data; } https://nodjoy.com/leaf/2020/10/26/php_oci8/ 杂记 PHP 安装oracle-instantclient 下载地址 分别下载 oracle-instantclient11.2-basic-11.2.0.4.0-1.x86_64.rpm oracle-instantclient11.2-devel-11.2.0.4.0-1.x86_64.rpm 运行 rpm -ivh oracle-instantclient11.2-* 此时会生成/usr/lib/oracle/11/2/client64/lib 目录 修改 /etc/ld.so.conf 配置文件 追加以下内容 /usr/lib/oracle/11.2/client64/lib/ 保存并退出 执行命令 ldconfig 安装 oci8 下载oci8组件 下载oci-2.0.8.tgz 解压并安装 tar -xvzf oci-2.0.8.tag cd oci-2.0.8 /www/server/php/56/bin/phpize （用phpize生成configure配置文件) ./configure --with-php-config=/www/server/php/56/bin/php-config --with-oci8=shared,instantclient,/usr/lib/oracle/11.2/client64/lib make && make install 修改 php.ini 添加extension=“oci8.so” 重启PHP，查看phpinfo https://nodjoy.com/note/2020/09/22/laravel_dingo/ 笔记 PHPLaravelApi Dingo 安装组件 composer require dingo/api:2.x 生成配置文件 php artisan vendor:publish 执行命令后会生成config/api.php配置文件 config/api.php 配置说明 #接口围绕：[x]本地和私有环境 [prs]公司内部app使用 [vnd]公开接口 'standardsTree' => env('API_STANDARDS_TREE', 'x') #项目名称 'subtype' => env('API_SUBTYPE', 'hdcms') #Api前缀 通过 www.hdcms.com/api 来访问 API。 'prefix' => env('API_PREFIX', 'api') #api域名 'domain' => env('API_DOMAIN', 'api.hdcms.com'), #版本号 'version' => env('API_VERSION', 'v1') #开发时开启DEBUG便于发现错误 'debug' => env('API_DEBUG', false) 接口版本–在routes/api.php中定义 $api = app(\Dingo\Api\Routing\Router::class); #默认配置指定的是v1版本，可以直接通过 {host}/api/version 访问到 $api->version('v1', function ($api) { $api->get('version', function () { return 'v1'; }); }); #如果v2不是默认版本，需要设置请求头 #Accept: application/[配置项 standardsTree].[配置项 subtype].v2+json $api->version('v2', function ($api) { $api->get('version', function () { return 'v2'; }); }); 基础控制器 php artisan make:controller Api/Controller namespace App\Http\Controllers\Api; use Dingo\Api\Routing\Helpers; use Illuminate\Http\Request; use App\Http\Controllers\Controller as SysController; class Controller extends SysController { use Helpers; } 响应结果–设置响应状态码 return $this->response->array(User::get())->setStatusCode(200); return response()->json(['error' => 'Unauthorized'], 401); 错误响应 // 一个自定义消息和状态码的普通错误。 return $this->response->error('This is an error.', 404); // 一个没有找到资源的错误，第一个参数可以传递自定义消息。 return $this->response->errorNotFound(); // 一个 bad request 错误，第一个参数可以传递自定义消息。 return $this->response->errorBadRequest(); // 一个服务器拒绝错误，第一个参数可以传递自定义消息。 return $this->response->errorForbidden(); // 一个内部错误，第一个参数可以传递自定义消息。 return $this->response->errorInternal(); // 一个未认证错误，第一个参数可以传递自定义消息。 return $this->response->errorUnauthorized('帐号或密码错误'); 限制请求次数 使用 api.throttle中间件结合 limit、expires 参数可实现接口次数限制 $api->version('v1', ['namespace' => '\App\Api'], function ($api) { $api->group(['middleware' => 'api.throttle', 'limit' => 2, 'expires' => 1], function ($api) { $api->get('user', 'UserController@all'); }); }); 限制1分钟只能访问2次 Jwt 安装组件 composer require tymon/jwt-auth:2.x 生成配置文件 php artisan vendor:publish 生成密钥 php artisan jwt:secret 这将用 JWT_SECRET=foobar 更新.env文件 配置说明 JWT配置文件是 config/jwt.php #令牌过期时间(单位分钟)，设置null为永不过期 'ttl' => env('JWT_TTL', 60) #刷新令牌时间(单位分钟)，设置为null可永久随时刷新 'refresh_ttl' => env('JWT_REFRESH_TTL', 20160) 更新用户模型示例 首先，您需要在用户模型上实现 Tymon\JWTAuth\Contracts\JWTSubject 契约，它要求您实现两个方法 getJWTIdentifier() 和 getJWTCustomClaims() namespace App; use Tymon\JWTAuth\Contracts\JWTSubject; use Illuminate\Notifications\Notifiable; use Illuminate\Foundation\Auth\User as Authenticatable; class User extends Authenticatable implements JWTSubject { use Notifiable; /** * 获取将存储在JWT主题声明中的标识符. * 就是用户表主键 id * * @return mixed */ public function getJWTIdentifier() { return $this->getKey(); } /** * 返回一个键值数组，其中包含要添加到JWT的任何自定义声明. * * @return array */ public function getJWTCustomClaims() { return []; } } 配置验证守卫 修改 config/auth.php 文件以使用jwt保护来为接口身份验证提供支持 'guards' => [ 'web' => [ 'driver' => 'session', 'provider' => 'users', ], 'api' => [ 'driver' => 'jwt', 'provider' => 'users', ], ] 修改dingo配置文件 config/api.php 文件中的身份验证提供者 'auth' => [ 'jwt' => \Dingo\Api\Auth\Provider\JWT::class, ], 验证操作 路由定义 $api = app(\Dingo\Api\Routing\Router::class); $api->version('v1', ['namespace' => 'App\Http\Controllers\Api',], function ($api) { $api->post('login', 'AuthController@login'); $api->get('logout', 'AuthController@logout'); $api->get('me', 'AuthController@me'); }); 控制器定义 class AuthController extends Controller { public function __construct() { // 除login外都需要验证 $this->middleware('auth:api', ['except' => ['login']]); } //登录获取token public function login() { $credentials = request(['email', 'password']); if (!$token = auth('api')->attempt($credentials)) { return $this->response->errorUnauthorized('帐号或密码错误'); } return $this->respondWithToken($token); } //获取用户资料 public function me() { return response()->json(auth('api')->user()); } //销毁token public function logout() { auth('api')->logout(); return response()->json(['message' => 'Successfully logged out']); } //刷新token public function refresh() { return $this->respondWithToken(auth('api')->refresh()); } //响应token protected function respondWithToken($token) { return response()->json([ 'access_token' => $token, 'token_type' => 'bearer', 'expires_in' => auth('api')->factory()->getTTL() * 60, ]); } } 使用令牌 在postman 工具中可以使用以下方式操作 https://nodjoy.com/note/2020/08/24/laravel05/ 笔记 LaravelPHP 生成Seeder文件 php artisan make:seeder UserSeeder 运行后会在database/seeds目录下生成UserSeeder.php 文件 编辑UserSeeder.php 文件 public function run() { //生成30条用户数据，并指定第一条账号的账号邮箱 $users = factory(\App\User::class,30)->create(); $user = $users[0]; $user->name = 'NODJOY'; $user->email = 'nodjoy@163.com'; $user->save(); } 编辑工厂文件database/factories/UserFactory.php $factory->define(App\User::class, function (Faker $faker) { return [ 'name' => $faker->name, 'email' => $faker->unique()->safeEmail, 'password' => bcrypt('admin888'), 'remember_token' => str_random(10), ]; }); 编辑执行Seeder文件database/seeds/DatabaseSeeder.php public function run() { // $this->call(UsersTableSeeder::class); $this->call(UserSeeder::class); } 执行填充数据命令 php artisan db:seed https://nodjoy.com/note/2020/08/20/sequelize01/ 笔记 Node.jsSequelize 安装sequelize、sequelize-cli和mysql2 npm install sequelize-cli -g npm install sequelize --save npm install mysql2 --save 初始化项目 sequelize init 在config.js中配置连接数据库参数 //连接数据库 { "development": { "username": "root", "password": null, "database": "bilikoa", "host": "127.0.0.1", "dialect": "mysql" }, "test": { "username": "root", "password": null, "database": "database_test", "host": "127.0.0.1", "dialect": "mysql" }, "production": { "username": "root", "password": null, "database": "database_production", "host": "127.0.0.1", "dialect": "mysql" } } 建立Article模型和迁移文件 sequelize model:generate --name Article --attributes title:string,content:text 运行迁移，生成数据表 sequelize db:migrate 新建种子文件 sequelize seed:generate --name atricle 配置种子文件seeders/article.js 'use strict'; module.exports = { up: async (queryInterface, Sequelize) => { await queryInterface.bulkInsert('Articles', [ { title: 'John Doe', content: '内容。。', createdAt: new Date(), updatedAt: new Date() }, { title: 'John Does', content: '内容。。', createdAt: new Date(), updatedAt: new Date() } ], {}); }, down: async (queryInterface, Sequelize) => { await queryInterface.bulkDelete('People', null, {}); } }; 运行种子文件，即可在articles表中生成测试数据 sequelize db:seed:all https://nodjoy.com/note/2020/08/13/koa07/ 笔记 KoaNode.js require-directory的安装与使用 const Koa = require('koa'); const app = new Koa(); const requireDirectory = require('require-directory'); const Router = require('koa-router'); const modules = requireDirectory(module,'./api',{ visit:whenLoadModule }) function whenLoadModule(obj){ if(obj instanceof Router){ app.use(obj.routes()) } } app.listen(3000); 路由文件的写法api/v1/book.js const Router = require('koa-router'); const router = new Router(); router.get('/v1/book/latest',(ctx,next)=>{ ctx.body={key:'books'} }) module.exports = router 目录结构 https://nodjoy.com/note/2020/08/10/koa06/ 笔记 KoaNode.js 全局安装koa脚手架生成工具 npm install koa-generator -g 创建项目 koa koa_demo 安装依赖 cd koa_demo npm install 启动项目 npm start https://nodjoy.com/note/2020/08/10/koa05/ 笔记 KoaNode.js Cookie Koa中设置Cookie值 ctx.cookies.set(name,value,[options]); Koa中获取Cookie值 ctx.cookies.get('name'); Koa中使用Buffer设置中文Cookie //设置中文Cookie router.get('/',async (ctx)=>{ var userinfo=new Buffer('张三').toString('base64'); ctx.cookies.set('userinfo',userinfo,{ maxAge:60*1000*60 }); }) //获取中文Cookie router.get('/news',async (ctx)=>{ var data=ctx.cookies.get('userinfo'); var userinfo=new Buffer(data, 'base64').toString(); console.log(userinfo); }) Session 安装并引入koa-session npm install koa-session --save const session = require('koa-session'); 配置koa-session中间件 app.keys = ['some secret hurr']; const CONFIG = { key: 'koa:sess', //cookie key (default is koa:sess) maxAge: 86400000, // cookie 的过期时间 maxAge in ms (default is 1 days) overwrite: true, //是否可以 overwrite (默认 default true) httpOnly: true, //cookie 是否只有服务器端可以访问 httpOnly or not (default true) signed: true, //签名默认 true rolling: false, //在每次请求时强行设置 cookie，这将重置 cookie 过期时间（默认：false） renew: false, //(boolean) renew session when session is nearly expired, }; app.use(session(CONFIG, app)); 设置与获取Session值 //设置值 ctx.session.username = "张三"; //获取值 ctx.session.username https://nodjoy.com/note/2020/08/10/koa04/ 笔记 KoaNode.js 原生Node.js获取post提交的数据 表单 <form action="/doAdd" method="post"> 用户名: <input type="text" name="username"/> <br/> <br/> 密　码: <input type="password" name="password"/> <br/> <br/> <button type="submit">提交</button> </form> 在module/common.js封装获取数据的方法 exports.getPostData=function(ctx){ //获取数据 异步 return new Promise(function(resolve,reject){ try{ let str=''; ctx.req.on('data',function(chunk){ str+=chunk; }) ctx.req.on('end',function(chunk){ resolve(str) }) }catch(err){ reject(err) } }) } 获取post提交的数据 //引用获取数据方法 var common = require('./module/common.js'); //接收post提交的数据 router.post('/doAdd',async (ctx)=>{ //原生nodejs 在koa中获取表单提交的数据 var data=await common.getPostData(ctx); console.log(data); ctx.body=data; }) 使用koa-bodyparser中间件获取post提交的数据 安装并引入koa-bodyparser npm install koa-bodyparser --save var bodyParser = require('koa-bodyparser'); 配置kooa-bodyparser中间件 app.use(bodyParser()); 获取post提交的数据 router.post('/doAdd',async (ctx)=>{ ctx.body = ctx.request.body; //获取表单提交的数据 }) 静态资源中间件 安装koa-static并引入 npm install koa-static --save const static = require('koa-static'); 配置koa-static中间件 app.use(static('./static')); 引入静态资源 <link rel="stylesheet" href="css/basic.css"/> //即可成功引入static/css/basic.css https://nodjoy.com/note/2020/08/09/koa02/ 笔记 KoaNode.js Koa路由的安装和配置 安装Koa路由 npm install koa-router --save Koa路由的使用 var Koa = require('koa'); //引入Koa var Router = require('koa-router'); //引入路由 var app = new Koa(); var router = new Router(); //配置路由 router.get('/',async function(ctx){ //ctx context 包含request和responses等信息 ctx.body="首页"; }).get('/news',async (ctx)=>{ ctx.body="新闻页"; }) //启动路由 app .use(router.routes()) .use(router.allowedMethods()); app.listen(3000); Koa Get传值及获取get传值 router.get('/newscontent',async (ctx)=>{ /*在 koa2 中 GET 传值通过 request 接收，但是接收的方法有两种：query 和 querystring。 query：返回的是格式化好的参数对象。 querystring：返回的是请求字符串。*/ //从ctx中读取get传值 console.log(ctx.query); //{ aid: '123' } 获取的是对象 用的最多的方式 ******推荐 console.log(ctx.querystring); //aid=123&name=zhangsan 获取的是一个字符串 console.log(ctx.url); //获取url地址 //ctx里面的request里面获取get传值 console.log(ctx.request.url); console.log(ctx.request.query); //{ aid: '123', name: 'zhangsan' } 对象 console.log(ctx.request.querystring); //aid=123&name=zhangsan ctx.body="新闻详情"; }) Koa动态路由 router.get('/package/:aid/:cid',async (ctx)=>{ //获取动态路由的传值 console.log(ctx.params); //{ aid: '123', cid: '456' } ctx.body="新闻详情"; }) Koa中间件 应用级中间件 var Koa = require('koa'); //引入Koa var Router = require('koa-router'); //引入路由 var app = new Koa(); var router = new Router(); //中间件 app.use(async (ctx,next)=>{ ctx.body='这是一个中间件'; console.log(new Date()); await next(); /*当前路由匹配完成后继续向下匹配*/ }); //配置路由 router.get('/',async function(ctx){ //ctx context 包含request和responses等信息 ctx.body="首页"; }); router.get('/news',async (ctx)=>{ ctx.body="新闻页"; }); router.get('/login',async (ctx)=>{ ctx.body="登录"; }); //启动路由 app .use(router.routes()) .use(router.allowedMethods()); app.listen(3000); 路由级中间件 //匹配到news路由之后继续向下匹配路由 router.get('/news',async (ctx，next)=>{ console.log('这是新闻1'); await.next(); }); router.get('/news',async (ctx)=>{ ctx.body="这是新闻2"; }); 错误处理中间件 app.use(async (ctx,next)=>{ next(); if(ctx.status == 404){ ctx.status = 404; ctx.body = '404页面'; } }); app.use(async (ctx,next)=>{ console.log('这是一个中间件01'); next(); if(ctx.status==404){ /*如果页面找不到*/ ctx.status = 404; ctx.body="这是一个 404 页面" }else{ console.log(ctx.url); } }) router.get('/',async (ctx)=>{ ctx.body="首页"; }) router.get('/news',async (ctx)=>{ console.log('这是新闻2'); ctx.body='这是一个新闻'; }) router.get('/login',async (ctx)=>{ ctx.body="新闻列表页面"; }) app.use(router.routes()); /*启动路由*/ app.use(router.allowedMethods()); app.listen(3000); Koa中间件的执行流程 app.use(async (ctx,next)=>{ console.log('1、这是第一个中间件01'); await next(); console.log('5、匹配路由完成以后又会返回来执行中间件'); }) app.use(async (ctx,next)=>{ console.log('2、这是第二个中间件02'); await next(); console.log('4、匹配路由完成以后又会返回来执行中间件'); }) router.get('/',async (ctx)=>{ ctx.body="首页"; }) router.get('/news',async (ctx)=>{ console.log('3、匹配到了news这个路由'); ctx.body='这是一个新闻'; }) //运行顺序 1、2、3、4、5、 app.use(router.routes()); /*启动路由*/ app.use(router.allowedMethods()); app.listen(3000); https://nodjoy.com/note/2020/08/09/koa01/ 笔记 KoaNode.js 安装Koa框架 初始化 npm init --yes 安装Koa npm install koa --save 第一个Koa程序app.js var Koa = require('koa'); //引入Koa var app = new Koa(); //实例化 //中间件 app.use(async(ctx)=>{ ctx.body='Hello Koa'; }); app.listen(3000); ES6基本语法 let与const let 块作用域,其他等同于var const 定义常量 模板字符串 var name = '张三'; var age = 20; console.log(`${name}的年龄是${age}`); 属性的简写 var name = 'zhangsan'; var app={ name //等同于name:name } console.log(app.name); 方法的简写 var name = 'zhangsan'; var app={ name, run:function(){ console.log(`${this.name}在跑步`); } } app.run(); 箭头函数 setTimeout(function(){ console.log('Hello'); },1000) //箭头函数写法 setTimeout(()=>{ console.log('Hello'); },1000) 回调函数 获取异步方法里面的数据 function getData(callback){ //ajax 模拟异步 setTimeout(function(){ var name = 'zhangsan'; callback(name); },1000); } //外部获取异步方法里面的数据 getData(function(data){ console.log(data); }) Promise处理异步 //resolve 成功的回调函数 //reject 失败的回调函数 var p =new Promise(function(resolve,reject){ //ajax 模拟异步 setTimeout(function(){ var name = 'zhangsan'; resolve(name); },1000); }) p.then(function(data){ console.log(data); }) Koa异步处理Async Await和Promise的使用 Async与Await async 让方法变为异步方法 await 等待异步方法执行完成 async function getData(){ return '这是一个数据'; } //运行结果：Promise {'这是一个数据'} - 返回的是promise对象 获取async异步方法里面的数据 async function getData(){ return '这是一个数据'; } var p = getData(); p.then((data)=>{ console.log(data); }) await用在异步方法里面 async function getData(){ return '这是一个数据'; } async function test(){ var d = await getData(); console.log(d); } //调用 test(); await阻塞功能，把异步改为同步 async function getData(){ console.log(2); } async function test(){ console.log(1); var d = await getData(); console.log(3); } test(); //运行结果 1 2 3 Promise的使用及获取Promise的数据 function getData(){ return new Promise((resolve,reject)=>{ setTimeout(()=>{ var username = 'zhangsan'; resolve(username); },1000) }) } async function test(){ var data = await getData(); console.log(data); } test(); https://nodjoy.com/leaf/2020/08/07/gitcommand/ 杂记 GitCommand Git基本命令 git config -l 查看配置 git config -global user.name “username” 全局设置用户名 git config -global user.email “email” 全局设置用户邮箱 git init 初始化版本库 git add a.php 添加文件到版本库 git add . 添加所有文件到版本库 git status 查看状态 git commit -m ‘message’ 提交到版本库并添加提交信息 git rm --cached readme.txt 移除版本库中的文件 git log 查看日志 git commit --amend 修改最近一次提交的信息 git reset HEAD a.php 撤销添加 git checkout -- a.php 撤销文件修改 git clone -b 分支名 仓库地址 使用Git下载指定分支 git branch 查看分支 git branch ask 创建分支 git checkout ask 切换分支 git checkout -b bbs 创建并切换到bbs分支 git merge ask 合并分支 git branch -d ask 删除分支 git branch --no-merge 查看未合并的分支 git branch -D test 删除未合并的分支 git stash 暂存 git stash list 暂存列表 git stash apply 恢复暂存 git archive master --prefix=‘bbs/’ --forma=zip > bbs.zip 生成zip发布压缩包 git remote add origin https://github.com/user/example.com.git 本地与GitHub远程关联 git push -u origin master 推送到远程master分支 git pull origin ask:ask 将远程ask分支拉到本地 .gitignore 忽略文件 a.php 忽略提交此文件 vendor 忽略提交此文件夹 vendor/*.txt 忽略提交此文件目录下的TXT文件 !a.php 不忽略此文件 https://nodjoy.com/note/2020/08/04/laravel09/ 笔记 PHPLaravel 注册数据处理方法中添加token并触发邮件发送 //用户注册数据处理 public function store(Request $request) { $data = $this->validate($request,[ 'name' => 'required|min:4', 'email' => 'required|email|unique:users', 'password' => 'required|min:6|confirmed', ]); $data['password'] = bcrypt($data['password']); $data['email_token'] = Str::random(10); $user = User::create($data); //发送注册邮件 \Mail::to($user)->send(new RegMail($user)); session()->flash('success','请查看邮箱完成注册验证'); return redirect('/'); } app/Mail/RegMail.php namespace App\Mail; use Illuminate\Bus\Queueable; use Illuminate\Mail\Mailable; use Illuminate\Queue\SerializesModels; use Illuminate\Contracts\Queue\ShouldQueue; class RegMail extends Mailable { use Queueable, SerializesModels; /** * Create a new message instance. * * @return void */ public $user; //定义公共属性会自动分配到视图模板 public function __construct($user) { // $this->user = $user; } /** * Build the message. * * @return $this */ public function build() { return $this->view('mail.reg'); } } 用户邮件验证视图reg.blade.php <!doctype html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>点击链接验证邮箱</title> </head> <body> <div> <a href="http://blog01.com/confirmEmailToken/{{$user['email_token']}}">点击链接完成验证</a> </div> </body> </html> 点击邮件中的链接验证 //用户验证邮件路由 Route::get('confirmEmailToken/{token}','UserController@confirmEmailToken')->name('confirmEmailToken'); 邮件验证方法 public function confirmEmailToken($token) { $user = User::where('email_token',$token)->first(); if($user){ $user ->email_active = true; $user ->save(); session()->flash('success','验证成功'); \Auth::login($user); return redirect('/'); } session()->flash('danger','邮箱验证失败'); return redirect('/'); } https://nodjoy.com/note/2020/07/31/laravel06/ 笔记 PHPLaravelApi 安装laravel/passport composer require laravel/passport=~7.0 指定为7.0版本，laravel5.8不支持8.0及以上版本 创建所需的表 php artisan migrate 生成secret php artisan passport:install 在app/Providers/AuthServiceProvider.php中引入并在boot方法中调用 use Laravel\Passport\Passport; public function boot() { $this->registerPolicies(); Passport::routes(); } 配置config/auth.php,将api默认的token改为passport 'api' => [ 'driver' => 'passport', 'provider' => 'users', 'hash' => false, ], 将HasApiTokens Trait引入app/User.php中,这个 Trait 为模型提供一些辅助函数，用于检查已认证用户的令牌和使用范围 namespace App; use Laravel\Passport\HasApiTokens; use Illuminate\Notifications\Notifiable; use Illuminate\Foundation\Auth\User as Authenticatable; class User extends Authenticatable { use HasApiTokens, Notifiable; } https://nodjoy.com/note/2020/07/30/mongodb01/ 笔记 MongoDBnosql数据库 安装配置（with WAMP） 下载MongoDB，并将安装包移动到wamp环境目录下 在mongodb目录新建log.txt文件和dat文件目录 启动命令 mongod --port 8888 --dbpath d:/wamp64/bin/mongodb/data --logpath d:/wamp64/bin/mongodb/log.txt 查看是否启动成功 netstat -an 连接MongoDB数据库 mongo localhost:8888 MongoDB基本指令 use dbname //使用数据库，如果没有则创建 show dbs //查看数据库 db.集合名.insert({}) //插入集合 show tables //查看集合 db.集合名.find() //查询集合里面的所有文档 db.集合名.findOne() //查询集合里面的第一个文档 db.集合名.drop() //删除集合 db.dropDatabase() //删除数据库（当前use的数据库） db.集合名.remove({age:5}) //删除文档 db.集合名.update({条件}),{新文档} //更新文档 db.集合名.find({条件}) //查询文档 https://nodjoy.com/note/2020/07/23/laravel04/ 笔记 LaravelPHPstormPHP Blade模板引擎的模板继承构建后台界面 后台视图文件目录 -/resources/views/admin/layout 为父级模板目录 使用@yield占位定义活动的页面范围 <div> @yield('content') </div> 子页面继承父级模板 @extends('admin.layout.master') @section('content') <div class="panel panel-default"> <div class="panel-heading"> <h3 class="panel-title">后台管理</h3> </div> <div class="panel-body"> 后台管理系统 </div> </div> @endsection 使用request进行表单验证 创建request php artisan make:request AdminPost 执行后会在app/Http/Requests目录生成AdminPost.php文件 首先引入登录验证的中间件，即在管理员登录状态才进行验证 use Auth; use Validator; use Hash; public function authorize() { return Auth::guard('admin')->check(); } /* *添加验证规则--用于确认密码比对 */ public function addValidator() { Validator::extend('check_password',function($attribute,$value,$parameters,$validator){ return Hash::check($value,Auth::guard('admin')->user()->password); //验证密码 }); } 使用Validator验证器 设置验证规则 public function rules() { $this->addValidator(); return [ 'password' => 'sometimes|required|confirmed', 'password_confirmation' => 'sometimes|required', 'original_password' => 'sometimes|required|check_password', ]; /*sometimes表示有表单的时候才会验证*/ } 定义错误提示信息 public function message() { return [ 'password.required' => '密码不能为空', 'password_confirmation.required' => '请输入确认密码', 'password_confirmed' => '两次密码输入不一致', 'original_password.required' => '请输入初始密码', 'original_password.check_password' => '初始密码错误', ]; } 在视图中显示错误提示信息 定义错误提示模板errors.blade.php @if (count($errors) > 0) <div class="modal fade" id="modal_message"> <div class="modal-dialog"> <div class="modal-content"> <div class="modal-header"> <button type="button" class="close" data-dismiss="modal" aria-hidden="true"> × </button> <h4 class="modal-title">后台 - 友情提示</h4> </div> <div class="modal-body"> <div class="row"> <div class="col-sm-2"> <i class="fa fa-info-circle fa-4x"></i> </div> <div class="col-sm-9"> @foreach ($errors->all() as $error) {{ $error }}<br> @endforeach </div> </div> </div> <div class="modal-footer"> <button type="button" class="btn btn-default" data-dismiss="modal">关闭</button> </div> </div> </div> </div> <script> require(['bootstrap'], function ($) { $('#modal_message').modal('show'); setTimeout(function () { $('#modal_message').modal('hide'); }, 3000); }) </script> @endif 在控制器中引用并使用request验证 use App\Http\Requests\AdminPost; use Auth; public function changePassword(AdminPost $request) { $model = Auth::guard('admin')->user(); $model->password = bcrypt($request['password']); //获取密码加密 $model->save(); //保存更新密码 } 使用laracasts-flash在视图中展示错误提示信息 安装laracasts-flash composer require laracasts/flash 将此工具在config/app.php服务提供者(providers)里面注册 Laracasts\Flash\FlashServiceProvider::class, 在父级模板中（master.blade.php）引用 @include('flash::message') <script> require(['bootstrap'], function ($) { //使用bootstrap模态块 $('#flash-overlay-modal').modal(); }); </script> 安装flash扩展支持 php artisan vendor:publish --provider="Laracasts\Flash\FlashServiceProvider" 执行后会在resources/views/vendor目录下生成flsh支持目录 在控制器中使用 public function changePassword(AdminPost $request) { $model = Auth::guard('admin')->user(); $model->password = bcrypt($request['password']); //获取密码加密 $model->save(); //保存更新密码 flash('密码修改成功')->overlay(); return redirect()->back(); } https://nodjoy.com/note/2020/07/22/laravel03/ 笔记 LaravelPHPPHPstorm 使用中间件进行后台权限验证 创建中间件 php artisan make:middleware AdminMiddleware 执行后会在app/Http/Middleware目录下生成AdminMiddleware.php文件 在AdminMiddleware类handle方法中使用Auth验证 use Auth; public function handle($request, Closure $next) { if(!Auth::guard('admin')->check()){ return redirect('/admin/login'); } return $next($request); } 路由中挂载此中间件 配置app/Http/Kernel.php protected $routeMiddleware = [ 'admin.auth' => AdminMiddleware::class, //在路由中挂载登录验证中间件 'auth' => \App\Http\Middleware\Authenticate::class, 'auth.basic' => \Illuminate\Auth\Middleware\AuthenticateWithBasicAuth::class, 'bindings' => \Illuminate\Routing\Middleware\SubstituteBindings::class, 'cache.headers' => \Illuminate\Http\Middleware\SetCacheHeaders::class, 'can' => \Illuminate\Auth\Middleware\Authorize::class, 'guest' => \App\Http\Middleware\RedirectIfAuthenticated::class, 'signed' => \Illuminate\Routing\Middleware\ValidateSignature::class, 'throttle' => \Illuminate\Routing\Middleware\ThrottleRequests::class, 'verified' => \Illuminate\Auth\Middleware\EnsureEmailIsVerified::class, ]; 在控制器中使用登录验证中间件 public function __construct() { //登录验证中间件 $this->middleware('admin.auth')->except(['loginForm','login']); } except() 排除loginForm、login方法 Auth&guard完成退出功能 退出方法 public function logout() { Auth::guard('admin')->logout(); return redirect('/admin/login'); } https://nodjoy.com/note/2020/07/21/laravel02/ 笔记 LaravelPHPPHPstorm 创建后台控制器 php artisan make:controller Admin/EntryController 配置路由 Route::get('/login','Admin\EntryController@loginForm'); 或者采用配置命名空间的方式指定到Admin目录，简化一些重复代码 Route::group(['prefix' => 'admin','namespace' => 'Admin'],function(){ Route::get('/login','EntryController@loginForm'); }); 使用Auth登录验证 编辑config/auth.php文件，在guards里定义admin入口 'admin' => [ 'driver' => 'session', 'provider' => 'admins', ], 在providers里添加admins,并指定model 'admins' => [ 'driver' => 'eloquent', 'model' => App\Model\Admin::class, ], 在控制器里面引入Auth use Auth; 添加登录验证方法login并验证 public function login() { $status = Auth::guard('admin')->attempt([ 'username' => Request::input('username'), 'password' => Request::input('password'), ]); dd($status); } laravel在表单提交数据的时候要在form中使用csrf验证 {{ csrf_field() }} 验证登录 public function login() { $status = Auth::guard('admin')->attempt([ 'username' => Request::input('username'), 'password' => Request::input('password'), ]); if($status){ return redirect('/admin/index'); } return redirect('/admin/login')->with('error','用户名或密码错误'); } 使用with闪存(只存储一次)向视图传递错误信息 @if(session('error')) <div class="alert alert-danger"> {{session('error')}} </div> @endif https://nodjoy.com/note/2020/07/16/laravel01/ 笔记 LaravelPHPPHPstorm 安装 composer安装 composer命令： composer create-project --prefer-dist laravel/laravel hd Laravel目录： 安装提示工具 前往PHP应用商店packagist.org下载安装代码提示工具 barryvdh/laravel-ide-helper 使用composer安装以上ide增强工具 composer require barryvdh/laravel-ide-helper 把增强工具引入laravel项目中 在/config/app.php providers扩展中添加代码： Barryvdh\LaravelIdeHelper\IdeHelperServiceProvider::class, 执行artisan命令初始化组件 php artisan ide-helper:generate 重启PHPstorm，完成工具安装 数据库配置 laravel有两个地方可以配置数据库： /.env 文件 （默认配置项） /config/database.php 文件 使用migration建表 执行make:migration命令创建hd数据表PHP文件 php artisan make:migration create_hd_table --create=hd 执行成功后会在database/migrations目录中生成PHP文件 2) 执行migrate命令创建hd数据表 php artisan migrate 解决MySQL 5.6版本执行migrate命令报错，无法创建表问题 错误信息：Illuminate\Database\QueryException 解决方法1：将MySQL升级至5.7+ 解决方法2：将/config/database.php mysql配置由utf8bm4改为utf8 解决方法3：将/app/Providers/AppServiceProvider.php 文件中引入Schema use Schema; 在boot方法中添加： Schema::defaultStringLength(191); 再次执行migrate命令数据表 数据表创建成功 前后端路由配置 在/routes目录下新建admin目录作为后台路由 在/routes/web.php中包含admin目录文件 include __DIR__.'/admin/web.php'; 在routes/admin/web.php中配置路由组 Route::group(['prefix' => 'admin'],function(){ Route::get('/abc',function(){ return 'abc'; }); }); 输入’域名/admin/abc’即可访问到后台admin路由 使用模型（Model）创建表 php artisan make:model Model/Admin -m -m 表示同时创建migration 编辑database/migrations/下的文件，设置表字段 public function up() { Schema::create('admins', function (Blueprint $table) { $table->increments('id'); $table->timestamps(); $table->string('username')->unique(); //表示username字段不允许重复 $table->string('password'); }); } 执行migrate命令创建admins表 php artisan migrate 为admins表添加数据 编辑database/factories/Modelfactory.php文件，添加如下代码： $factory->define(\App\Model\Admin::class, function (Faker $faker) { return [ 'username' => $faker->name, 'password' => bcrypt('admin888'), ]; }); 接下来使用tinker添加数据 php artisan tinker #启动tinker >>>factory(App\Model\Admin::class,3)->create(); 此时admins表会新增3条数据 https://nodjoy.com/note/2020/07/10/hugocommand.html 笔记 Hugo Hugo基本命令 hugo server --noHTTPCache #启动 hugo server --disableFastRender #FastRender启动 hugo new site "nodjoy.com" #创建站点 hugo new post/note/xx.md #创建文章 hugo #编译所有文件并输出到public目录 Hugo下载 https://nodjoy.com/home/welcome/ Welcome https://nodjoy.com/about/ 教育 工作 最近 {{ activity.content }} 联系我 👇