开始 学习使用 node.js 首先完成搭建一个 web服务器。myweb.js
1 var http = require('http');
2 var url = require('url');
3 var hostname = '127.0.0.1';
4 var port = 3000;
5 var bodystr = "";
6 var server = http.createServer(function(req, res){
7 res.statusCode = 200;
8 res.setHeader('Content-Type', 'text/plain');
9 var pathname = url.parse(req.url).pathname;
10 if(pathname === "/"){
11 bodystr = "Hello World\n";
12 }else{
13 bodystr = req.url;
14 }
15 res.end(bodystr);
16 }).listen(port, hostname, function(){
17 console.log(`Server running at http://${hostname}:${port}/`);
18 });
使用 npm 执行 myweb.js
浏览器输入 127.0.0.1:3000
输入 127.0.0.1:3000/Double