https://blog.csdn.net/weixin_33901641/article/details/85967847 vue之node.js的简单介绍
http://nodejs.cn/
http://www.runoob.com/nodejs/nodejs-express-framework.html
cmd ->
node -v
npm -v
login.html
1 <!DOCTYPE html> 2 <html lang="en"> 3 <head> 4 <meta charset="UTF-8"> 5 <meta http-equiv="X-UA-Compatible" content="IE=edge"> 6 <meta name="viewport" content="width=device-width"> 7 <title>Title</title> 8 <script type="text/javascript" src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js"></script> 9 <style> 10 span{ 11 color: rgb(255, 0, 0); 12 } 13 </style> 14 </head> 15 <body> 16 <div> 17 <form action="" method="post"> 18 <p>用户名：<input type="text" placeholder="username" id="username"></p> 19 <p>密码：<input type="password" placeholder="password" id="password"></p> 20 <input type="submit" value="提交" onclick="login()"> 21 <span></span> 22 </form> 23 </div> 24 <script> 25 function login() { 26 var username = $("#username").val(); 27 var password = $("#password").val(); 28 var url = "http://localhost:8080/login"; 29 console.log(username,password); 30 $.post(url, {username,password}, function (response) { 31 console.log(response); 32 if (response){ 33 alert("登陆成功") 34 }else{ 35 alert("登录失败") 36 } 37 38 }) 39 40 } 41 42 </script> 43 </body> 44 </html>
server.js
1 var express = require("express"); //引用包 npm install express --save 2 var query = require("querystring"); 3 4 var app = express(); //初始化 5 app.listen("8080",function () { //监听 6 console.log("服务已经启动，端口是8080") 7 }); 8 9 var data2=""; 10 app.post( 11 '/login', 12 function (request,response) { 13 response.header("Access-Control-Allow-Origin", "*"); 14 request.on("data",function (datas) { //接收用户发来的数据,里面的data是不变的，就得叫data 15 data2 = ""; 16 // console.log(datas) ; //<Buffer 75 73 65 72 6e 61 6d 65 3d 26 70 61 73 73 77 6f 72 64 3d 17 // >这样打印的结果是Buffer 类型的，所以我们得拼接一下,用querystring这个模块转成字符串 18 data2+=datas; 19 }); 20 request.on("end",function () { //接收用户发来的数据之后开始解析 21 console.log(query.parse(data2)); //{ username: '海燕', password: '123' } 22 var username = query.parse(data2).username; 23 var password = query.parse(data2).password; 24 if (username == "海燕" && password == "123"){ 25 response.send(true)//如果登录成功就把数据返回给前端 26 }else{ 27 response.send(false) 28 } 29 }) 30 31 } 32 );
直接运行html