demo39.js
const express = require('express');const app = express();
const bodyParser = require('body-parser');
//拦截所有请求
//extends:true 方法内部使用第三方模块请求的参数
app.use(bodyParser.urlencoded({ extends: false }))app.post('/add', (req, res) => {res.send(req.body);
})
app.listen(3000);
console.log('服务器启动成功');
post.html
<!DOCTYPE html>
<html lang="en"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>Document</title>
</head><body><form action="http://localhost:3000/add" method="post"><input type="text" name="username"><input type="password" name="password"><input type="submit" name=""></form>
</body></html>
运行结果