request获取重定向的地址
var r = request(url, function (e, response,body) {
r.uri
response.request.uri
console.log(response.statusCode);
console.log(this.uri.href);
})
分类 NodeJS 下的文章
Node/包 管理
锁定Node版本// package.json
"engines":{
"node": "14.x || 16.xp"
}// .npmrc
engine-strict = true锁定包npm install -D only-allowonly-allow npm、only-allow pnpm、only-allow yarn// package.json
"scripts": {
"preinstall": "only-allow npm",
...
}
express 请求者IP
正常情况下:console.log(req.ip); // ::ffff:123.23.12.1使用nginx代理后: location / {
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header REMOTE-HOST $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add...
随机数random.org
https://www.random.org/integers/?num=500&min=0&max=12&col=1&base=10&format=plain&rnd=new
其中:
num: 随机多少个
min:其中最小的数
max:其中最大的数
nodejs 反向代理 http-proxy-middleware
const express = require('express');
const app = express();
const proxy = require('http-proxy-middleware');
const port = 3000
const bodyParser = require('body-parser');
app.use(require('cors')())
app.use(bodyParser.urlencoded({
extended: false
}));
app.use(bodyParser.json(...
Nodejs+Express 权限下载文件
先请求一个TOKEN(以用户生成,并且设置过期时间). 以token做验证去下载.或者直接发送登录的token下载
const express = require('express');
const app = express();
const port = 51413;
const bodyParser = require('body-parser');
app.use(require('cors')())
app.use(bodyParser.urlencoded({
extended: false
}));
app.use(bodyP...
Nodejs+Express+Vue 分片上传文件
Vue<template>
<div class="upload">
<el-upload
:before-upload="befUpload"
class="upload-demo"
drag
action="/"
:show-file-list="false"
>
<el-icon class="el-icon--upload"><upload-filled /></el-icon>
<div cla...
下载文件
function downloadFile(u) {
http.get(u, (res) => {
var data = "";
res.setEncoding('binary');
res.on('data', function (chunk) {
data += chunk
})
res.on('end', () => {
let filename = Date.now();
fs.wr...
Nodejs对接微信公众号(订阅号)
公众号配置在开启服务器配置的时候需要验证自己的url.router.get('/api/send', (req, res) => {
let token = wxToken;
let signature = req.query.signature;
let timestamp = req.query.timestamp;
let nonce = req.query.nonce;
let echostr = req.query.echostr;
let arr = [token, timesta...
Server酱
NodeJs 封装一个简单的请求.key:server酱SCKEYtext:标题desp:内容(支持MarkDown)const https = require('https');
var iconv = require("iconv-lite");
function serverBot(key = '', text = '', desp = '') {
return new Promise((resolve, reject) => {
let url = `https://sc.ftqq.com/${key}.send?t...
TgBot
先去@BotFather创建一个机器人,具体步骤谷歌,拿到TOKENnpm i node-telegram-bot-apiconst token = "XXXXXXX";
const TelegramBot = require('node-telegram-bot-api');
const bot = new TelegramBot(token, {polling: true});
//监听信息
bot.on('message', (msg) => {
//处理函数
// msg.chat.id 相当于用户ID
...
NodeJs抓取页面
npm i cheerio request iconv-lite思路：通过 request 获取到页面。在使用 iconv-lite 编译数据。在使用 cheerio 拿到对应的元素。这里以抓取微博热搜为例const cheerio = require('cheerio');
const request = require('request');
const iconv = require('iconv-lite');
function http(url, decode = 'utf8') {
return new Promise((res...
MySql3306端口笔记Can’t connect to MySQL server(60)的问题
阿里云服务器。端口全开。防火墙关闭。安全组端口全开。就是连不上。Can’t connect to MySQL server(60)的问题 sudo iptables -L可以看到一条mysql的规则。这个时候需要把他删掉sudo iptables -L -n --line-number sudo iptables -D INPUT 6
NodeJs抓取页面内容
const cheerio = require('cheerio');
const request = require('request');
let url = 'https://btc.com/'
request({ url: url, encoding: null }, function (error, response, body) {
if (!error && response.statusCode == 200) {
var buf = iconv.decode(body...
赛邮云通信SUBMAIL
NodeJs发送短信var request = require('request');
let post = function (url, postdata) {
let options = {
url: url,
formData: postdata
};
return new Promise(function (resolve, reject) {
request.post(options, function (err, response, body) {
...
puppeteer脚本使用 浏览器
const puppeteer = require('puppeteer');
const browser = puppeteer.launch(
{
headless: true // true关闭ui，false打开ui
}
);
const page = browser.newPage(); // 实例化Apipage.goto(url) // 进入一个网站
page.click('#btn') // 点击某个元素
const input_areaUser = pa...
图形验证码
const svgCaptcha = require('svg-captcha');
var codeConfig = {
size: 5,// 验证码长度
ignoreChars: '0o1i', // 验证码字符中排除 0o1i
noise: 2, // 干扰线条的数量
height: 44
}
var captcha = svgCaptcha.create(codeConfig);
let code = captcha.text.toLowerC...
Node接口笔记
JTW 生成TOKEN
let token = jsonwebtoken.sign({
id: data[0].id // 数据
}, secret, { expiresIn: 60 * 60 * 24 * 30 * 6 }) // 半年，过期时间 ，单位秒 secret为秘钥
解析
try {
// 解析令牌，返回对象：{ exp: 过期时间, crt：创建时间 ...}
userInfo = jwt.ve...