1 const http = require('http');
2
3 let server = http.createServer((req, res)=>{
4 res.end('hello, world!');
5 });
6
7 server.listen(3000, '127.0.0.1', ()=>{
8 console.log('服务器已经启动!');
9 // 5秒后关闭服务器
10 setTimeout(()=>{
11 // server.close();
12 }, 5000);
13 });
14
15 // 监听服务器的关闭
16 server.on('close', ()=>{
17 console.log('服务器已经关闭!');
18 });
19
20 // 监听服务器发生错误
21 server.on('error', (e)=>{
22 if(e.code === 'EADDRINUSE'){
23 console.log('端口号被调用!');
24 }else {
25 console.log('其它的错误', e.code);
26 }
27 });
28
29 // 设置超时时间
30 server.setTimeout(1000, ()=>{
31 console.log('设置超时时间为1s');
32 });
33
34 server.on('timeout', ()=>{
35 // 超时要做什么操作
36 console.log('连接已经超时');
37 });
1 let http = require('http');
2 let fs = require('fs');
3 let path = require('path');
4
5 http.createServer((req, res)=>{
6 console.log(path.join(__dirname, 'request.log'));
7 console.log(req);
8 // 输出request.log文件
9 let out = fs.createWriteStream(path.join(__dirname, 'request.log'));
10 out.write('1) method:' + req.method + '\n');
11 out.write('2) url:' + req.url + '\n');
12 out.write('3) headers:' + JSON.stringify(req.headers) + '\n');
13 out.write('4) httpVersion:' + req.httpVersion + '\n');
14 }).listen(8080, '127.0.0.1');
1 1) method:GET
2 2) url:/
3 3) headers:{"host":"localhost:8080","connection":"keep-alive","cache-control":"max-age=0",
"upgrade-insecure-requests":"1","user-agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko)
Chrome/75.0.3770.100 Safari/537.36","accept":"text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;
q=0.8,application/signed-exchange;v=b3","accept-encoding":"gzip, deflate, br","accept-language":"zh-CN,zh;q=0.9,en;q=0.8,lb;
q=0.7","cookie":"_nano_fp=XpdYn5CjX0UJnpTJXC_ALVUQMlgQwrkHd5Az6sJb"}
4 4) httpVersion:1.1
1 // 方式1
2
3 const url = require('url');
4 // 把字符串转成URL对象
5 const myURL = url.parse( 'https://user:pass@sub.itLike.com:8080/p/a/t/h?query=string#hash');
6 console.log(myURL);
7
8
9 const myURL = new URL('https://user:pass@sub.itLike.com:8080/p/a/t/h?query=string#hash');
10 console.log(myURL);
1 URL {
2 href:
3 'https://user:pass@sub.itlike.com:8080/p/a/t/h?query=string#hash',
4 origin: 'https://sub.itlike.com:8080',
5 protocol: 'https:',
6 username: 'user',
7 password: 'pass',
8 host: 'sub.itlike.com:8080',
9 hostname: 'sub.itlike.com',
10 port: '8080',
11 pathname: '/p/a/t/h',
12 search: '?query=string',
13 searchParams: URLSearchParams { 'query' => 'string' },
14 hash: '#hash'
15 }
1 const http = require('http');
2
3 http.createServer((req, res)=>{
4 console.log(res.headersSent ? '响应头已经发送' : '响应头未发送');
5 // 设置隐式响应头
6 res.setHeader('Content-Type', 'text/html;charset=utf-8');
7 res.writeHead(200, 'ok');
8 res.write('<h1>Hello, ItLike</h1>');
9 res.write('<h1>Hello, ItLike</h1>');
10 res.write('<h1>Hello, ItLike</h1>');
11 res.write('<h1>Hello, ItLike</h1>');
12 // 本次响应结束
13 res.end('<h1>撩课学院</h1>');
14 console.log(res.headersSent ? '响应头已经发送' : '响应头未发送');
15 }).listen(3000, '127.0.0.1', ()=>{
16 console.log('服务器已经启动~')
17 });
