node.js增删改查保姆级教程方法

const express=require('express')
 
const app=express()
const cors = require("cors");
 
const mysql=require('mysql')
 
const bodyParser=require('body-parser')
 
const pool=mysql.createPool({
    host:'127.0.0.1',
    port:'3306',
    user:'root',
    password:'19958090',
    database:'menu'
})

pp.get('/student',(req,res)=>{
  pool.query('select * from student',(err,result)=>{
    res.send({
      code:200,
      msg:'ok',
      data:result
    })
  })
})

app.post('/student',(req,res)=>{
  let obj=req.body
  pool.query('INSERT INTO student SET?',[obj],(err,result)=>{
    console.log(obj)
      res.send({
          code:210,
          msg:'insert sucess',
      })
  })
})

app.delete('/manager',(req,res)=>{
  let obj=req.query
  console.log(obj.id)
  pool.query('delete from manager where id = ?',[obj.id],(err,result)=>{
    if (err) return console.error(err);
      res.send({
          code:210,
          msg:'insert suce',
      })
  })
})

app.put('/manager',(req,res)=>{
  let obj=req.query
  console.log(obj.id)
  pool.query('updata manager set ? where id = ?',[obj,obj.id],(err,result)=>{
    if (err) return console.error(err);
      res.send({
          code:210,
          msg:'insert suce',
      })
  })
})

app.listen(8081,()=>{
    console.log('express serve running at http://127.0.0.1:8080')
 })