express(二 设置post请求处理和跨域)

const express = require("express");
const app = express()
//跨域处理
app.use('*',function(req,res,next){
  res.setHeader("Access-Control-Allow-Origin", "*");
  res.setHeader("Access-Control-Allow-Headers", "Content-Type");
  // res.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
  // res.setHeader("Access-Control-Max-Age", "3600");
  // res.setHeader("Access-Control-Allow-Credentials", "true");
  next();
});
// 处理post请求
app.use(express.json())
app.use(express.urlencoded({ extended: false }))
app.get('/', (req, res) => res.send('Hello World!'));
app.get('/login', (req, res) => {
  console.log(req.query)
  res.send({
    code: 1,
    msg: '登录成功',
    userInfo: req.query
  })
})
app.post('/delete', (req, res) => {
  console.log(req.body)
  res.send({
    code: 1,
    msg: '删除成功'
  })
})
app.listen(3000)