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                ThinkChat2.0新版上線,更智能更精彩,支持會話、畫圖、視頻、閱讀、搜索等,送10W Token,即刻開啟你的AI之旅 廣告
                1、新建文件夾 2、初始化項目 ` npm init ` 直往下確認即可,entry point 時,聲明一個入口文件 index.js (或者生成package.json文件后自己手動添加也行) 3、安裝 express `npm install express --save ` 4、安裝 `npm install mysql --save` ``` var express = require('express'); var app = express(); var mysql = require('mysql'); //設置跨域訪問 app.all('*', function (req, res, next) { res.header("Access-Control-Allow-Origin", "*"); res.header("Access-Control-Allow-Headers", "X-Requested-With"); res.header("Access-Control-Allow-Methods", "PUT,POST,GET,DELETE,OPTIONS"); res.header("X-Powered-By", ' 3.2.1'); res.header("Content-Type", "application/json;charset=utf-8"); next(); }); var connection=mysql.createConnection({ host:'localhost',//主機 user:'root',//mysql認證的用戶名 password:'12345678',//mysql用戶密碼 database:'mysql',//數據庫名 port:'3306'//端口號 }); connection.connect(function(err){ if(err){ console.log(err); console.log("錯誤") return; }else{ res.write("數據庫連接成功"); res.end(); } }); var questions = [ { data: 213, num: 444, age: 12 }, { data: 456, num: 678, age: 13 }]; //寫個接口123 app.get('/123', function (req, res) { res.status(200), res.json(questions) }); //登錄接口 app.get('/user', function (req, res) { res.status(200), res.json(questions) }); //配置服務端口 var server = app.listen(3000, function () { var host = server.address().address; var port = server.address().port; console.log('Example app listening at http://%s:%s', host, port); }) ``` > 備注: > mysql 最好還是用 5.7 版本 穩定 > mysql操作工具用 navicat
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