const http = require('http');
// 创建http.Server 的实例
// 第一个参数是请求体参数，第二个参数是响应体参数
http.createServer((req,res)=>{
    console.log("请求体\r\n",req,"\r\n");
    res.writeHead(200,{'Content-Type':'text/html'});
    res.write(`<h1>node.js</h1>`);
    res.end();
}).listen(8080,'127.0.0.1');
//listen设置的是浏览器访问的ip跟端口
console.log("HTTP server is running \r\n => at 127.0.0.1:8080");

const http = require('http');
const server = new http.Server();
server.on('request',(req,res)=>{
    res.writeHead(200,{'Content-Type':"text/html"});
    res.write(`<h1>httpServer</h1>`);
    res.end(`<p>hello js</p>`);
})
server.listen(3000,'127.0.0.2');
console.log("Http server is listening at => 127.0.0.2:3000");

const http = require('http');
const url = require('url');
const util = require('util');
http.createServer((req,res)=>{
    res.writeHead(200,{'Content-Type':'text/plain'});
    res.end(util.inspect(url.parse(req.url,true)));
}).listen(3000,'127.0.0.1');
console.log("Server is listening at : \r\n => 127.0.0.1:3000");

const http = require('http');
const querystring = require('querystring');
const util = require('util');
http.createServer((req,res)=>{
    var post = '';
    req.on('data',chunk=>{
        post += chunk;
    });
    req.on('end',function(){
        post = querystring.parse(post);
        res.end(util.inspect(post));
    })
}).listen(8080);
console.log("Server is listening at 127.0.0.1:8080");