zoukankan      html  css  js  c++  java
  • async 配合mysql

    async-db.js

    const mysql = require('mysql') const pool = mysql.createPool({ host : '127.0.0.1', user : 'root', password : '123456', database : 'my_database' }) let query = function( sql, values ) { return new Promise(( resolve, reject ) => { pool.getConnection(function(err, connection) { if (err) { reject( err ) } else { connection.query(sql, values, ( err, rows) => { if ( err ) { reject( err ) } else { resolve( rows ) } connection.release() }) } }) }) } module.exports = { query }
    //使用
    const { query } = require('./async-db') async function selectAllData( ) { let sql = 'SELECT * FROM my_table' let dataList = await query( sql ) return dataList } async function getData() { let dataList = await selectAllData() console.log( dataList ) } getData()
  • 相关阅读:
    The nineteenth day
    The eighteen day
    弱读下
    弱读上
    失爆 爆破音
    连读
    The seventeenth day
    The sixteenth day
    React 官方脚手架 create-react-app快速生成新项目
    pc端引入微信公众号文章
  • 原文地址:https://www.cnblogs.com/wanghaonull/p/7111983.html
Copyright © 2011-2022 走看看