node07-http

目录：
node01-创建服务器

node02-util

node03-events

node04-buffer

node05-fs

node06-path

node07-http

node08-express

node09-cookie

http模块：

文件上传：

html：

 <!DOCTYPE html>
 <html lang="en">
 <head>
     <meta charset="UTF-8">
     <title>post</title>
     <link rel="stylesheet" href="post.css">
 </head>
 <body>
     <form action="/post" method="post" enctype="multipart/form-data">
         用户名：<input type="text" name="user"><br>
         密码：<input type="password" name="pass"><br>
         <input type="file" name="fileup"><br>
         <input type="submit" value="提交">
     </form>
     <div id="time">time</div>
 </body>
 <script src="post.js"></script>
 </html>

js：

 window.onload = function(){
     var time = document.getElementById("time");
     var timer = setInterval(function(){
         var ajax = new XMLHttpRequest();
         ajax.open("get","/ajax?user=zhaoyang&pass=123",true);
         ajax.send();
         ajax.onload = function(){
             time.innerHTML = ajax.responseText;
         }
     },1000);

 }

node（文件上传与get、post请求处理）：

 /*
 * http：超文本传输协议
 * http模块：能够搭建服务器环境（模拟的客服端环境）
 *
 * */

 var http = require("http");
 var url = require("url");
 var fs = require("fs");
 var formidable = require("formidable");
 var server = http.createServer(function (request,response) {
     // console.log(request.url);
     var urlObj = url.parse(request.url,true);
     // console.log(urlObj);
     // console.log(request.method);
     // response.end("响应结束");

     if(urlObj.pathname == "/10post.html" || urlObj.pathname == "/"){
         //访问表单页面
         var rs = fs.createReadStream("10post.html");
         rs.pipe(response);
         // response.end();不能带end()
     }else if(urlObj.pathname == "/post"){
         // console.log(urlObj);
     //     request.on("data",function(chunk){
     //         console.log(chunk);
     //     });

         var form = new formidable.IncomingForm();
         form.parse(request,function (err,fields,files) {
             // console.log(fields);
             console.log(files);
             console.log(files.fileup.path);//文件上传的临时路径 files.fileup.path
             fs.createReadStream(files.fileup.path).pipe(fs.createWriteStream("./upload/" + files.fileup.name));

         });
         response.end();
     }else if(urlObj.pathname == "/ajax"){
         var newTime = new Date();
         response.end(newTime.toString());
     }else if(urlObj.pathname == "/req"){
         console.log(urlObj.query);
         var result= "";
         request.on("data",function(chunk){
             result += chunk.toString();
         });
         request.on("end",function(err){
             response.end("参数是" + result);
         })
         response.end("参数是" + JSON.stringify(urlObj.query));
     }else if(urlObj.pathname != "/favicon.ico"){
         //其他的所有页面
         // ./post.css
         console.log(urlObj.pathname);
         fs.createReadStream("." + urlObj.pathname).pipe(response);
     }
 });
 server.listen(2333);

GET、POST请求：

 var http = require("http");
 var request = http.request({
     host:"localhost",
     port:"2333",
     path:"/req?user=zhaoyang&pass=123",
     // path:"/req",
     method:"POST",
 },function (res) {
     console.log(res.statusCode);
     var result = "";
     res.on("data",function(chunk){
         result += chunk;
     });
     res.on("end",function(err){
         console.log(result);
     });
 });
 request.write('{"user":"zhaoyang","pass":"123"}');
 request.end();//结束请求体