一、http模块
const http = require('http');
http.createServer((req,res)=>{
//1 设置响应头
res.writeHead(200,{'content-type': 'text/html; charset=utf-8'});
// 2 设置响应内容
res.write('<h1>there is a way</h1>');
res.end('<h2>always like this!</h2>')
}).listen(3000,'127.0.0.1');
get 请求:
const http = require('http');
const url = require('url');
const util = require('util');
http.createServer((req,res)=>{
// 1 设置响应头
res.writeHead(200,{'content-type': 'text/html; charset=utf-8'});
// 2. 利用url模块去解析客户端发送过来的URL
res.write(req.url);
res.write('--------------------------')
res.write(util.inspect(url.parse(req.url,true)));
res.end();
}).listen(3000,'127.0.0.1');
/*
访问:http://localhost:3000/getName&a=123&b=456
结果页面显示:
/getName&a=123&b=456
--------------------------
Url { protocol: null, slashes: null, auth: null, host: null, port: null, hostname: null, hash: null, search: null, query: {}, pathname: '/getName&a=123&b=456', path: '/getName&a=123&b=456', href: '/getName&a=123&b=456' }
* */
post请求:
/*const http = require('http');
http.createServer((req,res)=>{
//1 设置响应头
res.writeHead(200,{'content-type': 'text/html; charset=utf-8'});
// 2 设置响应内容
res.write('<h1>there is a way</h1>');
res.end('<h2>always like this!</h2>')
}).listen(3000,'127.0.0.1');*/
/*
const http = require('http');
const url = require('url');
const util = require('util');
http.createServer((req,res)=>{
// 1 设置响应头
res.writeHead(200,{'content-type': 'text/html; charset=utf-8'});
// 2. 利用url模块去解析客户端发送过来的URL
res.write(req.url);
res.write('--------------------------')
res.write(util.inspect(url.parse(req.url,true)));
res.end();
}).listen(3000,'127.0.0.1');
/!*
访问:http://localhost:3000/getName&a=123&b=456
结果页面显示:
/getName&a=123&b=456
--------------------------
Url { protocol: null, slashes: null, auth: null, host: null, port: null, hostname: null, hash: null, search: null, query: {}, pathname: '/getName&a=123&b=456', path: '/getName&a=123&b=456', href: '/getName&a=123&b=456' }
* *!/*/
const http = require('http');
const url = require('url');
const util = require('util');
const querystring = require('querystring');
http.createServer((req, res)=>{
let postData = '';
// 监听post 过来数据,然后存入到 postData 里
req.on('data', (chunk)=>{
postData += chunk;
});
req.on('end', ()=>{
console.log(postData);
// parse这个方法是将一个字符串反序列化为一个对象。
// 可以将user=gudon&pwd=123456 反序列化为 { user: 'gudon', pwd: '123456' }
postData = querystring.parse(postData);
//util.inspect()将任意对象转换为字符串的方法,通常用于调试和错误输出。
res.end(util.inspect(postData));
});
}).listen(3000, '127.0.0.1');
// 访问:html端post表单提交 username gudon,password为123456
// 服务端打印:user=gudon&pwd=123456
// 浏览器:{ user: 'gudon', pwd: '123456' }
未完待续。。。