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前端IT干货第一时间送达！
作者： 奋飛
https://blog.csdn.net/ligang2585116/article/details/72827781
var server = http.createServer((request, response) => {// 接受客户端请求时触发 ...});server.listen(10000, 'localhost', 511, () => {// 开始监听 ...});var server = http.createServer();// 接受客户端请求时触发server.on('request', (request, rsponse) => {...});server.listen(10000, 'localhost', 511);// 开始监听server.on('listening', () => {...});
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server.listen(port, [host], [backlog], [callback])中的backlog参数为整数，指定位于等待队列中客户端连接的最大数量，一旦超过这个长度，HTTP服务器将开始拒绝来自新客户端的连接，默认值为511。 -
在HTTP请求服务器时，会发送两次请求。一次是用户发出请求，另一次是浏览器为页面在收藏夹中的显示图标（默认为favicon.ico）而自动发出的请求。
server.close();// 服务器关闭时会触发close事件server.on('close', () => {...});
server.setTimeout(60 * 1000, () => {console.log('超时了');});// 或者通过事件形式server.setTimeout(60 * 1000);server.on('timeout', () => {...});
server.on('error', (e) => {if(e.code === 'EADDRINUSE') {// 端口被占用}});
server.on('request', (request, response) => {if(request.url !== '/favicon.ico') {/* Get请求 */var params = url.parse(req.url, true).query;// 或者// var params = querystring.parse(url.parse(request.url).query);// 根据参数做处理// ...// 结束请求 response.end(); } });server.on('request', (request, response) => {request.setEncoding('utf-8');if(request.url !== '/favicon.ico') {let result = '';request.on('data', (data) => {result += data;});request.on('end', () => {var params = JSON.parse(postData);console.log(`数据接收完毕：${result}`);});// 结束本次请求response.end();}// 结束本次请求response.end(JSON.stringify({status: 'success'}));});
querystring.stringify(obj, [sep], [eq])querystring.parse(str, [sep], [eq], [option])
options：{maxKeys: number}指定转换后对象中的属性个数let str = querystring.stringify({name: 'ligang', age: 27});console.log(str); // name=ligang&age=27let obj = querystring.parse(str);console.log(obj); // { name: 'ligang', age: '27' }
url.parse(urlStr, [parseQueryString])
url.resolve(from, to);
// http://ligangblog.com/javascript/a?a=1url.resolve('http://ligangblog.com/javascript/', 'a?a=1');// http://ligangblog.com/a?a=1url.resolve('http://ligangblog.com/javascript/', '/a?a=1');
var urlStr = 'http://ligangblog.com/javascript/?name=lg&uid=1#a/b/c';console.log(url.parse(urlStr, true));/*Url { protocol: 'http:', slashes: true, auth: null, host: 'ligangblog.com', port: null, hostname: 'ligangblog.com',hash: '#a/b/c', search: '?name=lg&uid=1', query: { name: 'lg', uid: '1' }, pathname: '/javascript/', path: '/javascript/?name=lg&uid=1', href: 'http://ligangblog.com/javascript/?name=lg&uid=1#a/b/c'}*/response.writeHead(statusCode, [reasonPhrase], [headers]);// 或者response.setHeader(name, value);
response.writeHead(200, {'Content-Type': 'text/plain','Access-Control-Allow-Origin': 'http://localhost'});// 或者response.statusCode = 200;response.setHeader('Content-Type', 'text/plain');response.setHeader('Access-Control-Allow-Origin', 'http://localhost');
/* 获取响应头中的某个字段值 */response.getHeader(name);/* 删除一个响应字段值 */response.removeHeader(name);/* 该属性表示响应头是否已发送 */response.headersSent;/* 在响应数据的尾部增加一个头信息 */response.addTrailers(headers);
// 必须再响应头中添加Trailer字段，并且其值设置为追加的响应头中所指定的字段名response.write(200, {'Content-Type': 'text/plain', 'Trailer': 'Content-MD5'});response.write('....');response.addTrailers({'Content-MD5', '...'});response.end();
/* 设置请求超时时间2分钟 */response.setTimeout(2 * 60 * 1000, () => {console.error('请求超时！');});// 或者response.setTimout(2 * 60 * 1000);response.on('timeout', () => {console.error('请求超时！');});/* 连接中断 */response.on('close', () => {console.error('连接中断！');});
/*** HTTP服务端* Created by ligang on 17/5/28.*/import http from 'http';var server = http.createServer();// 接受客户端请求时触发server.on('request', (request, response) => {if(request.url !== '/favicon.ico') {response.setTimeout(2 * 60 * 1000, () => {console.error('请求超时！');});response.on('close', () => {console.error('请求中断！');});let result = '';request.on('data', (data) => {result += data;});request.on('end', () => {console.log(`服务器数据接收完毕：${result}`);response.statusCode = 200;response.write('收到!');response.end(); // 结束本次请求});}});server.listen(10000, 'localhost', 511);// 开始监听server.on('listening', () => {console.log('开始监听');});server.on('error', (e) => {if(e.code === 'EADDRINUSE') {console.log('端口被占用');}else {console.log(`发生错误：${e.code}`);}});
var req = http.request(options, callback);// get请求var req = http.get(options, callback);// 向目标网站发送数据req.write(chunk, [encoding]);// 结束本次请求req.end([chucnk], [encoding]);// 中止本次请求req.abort();
/*** HTTP客户端* Created by ligang on 17/5/30.*/import http from 'http';const options = {hostname: 'localhost',port: 10000,path: '/',method: 'post'},req = http.request(options);req.write('你好，服务器');req.end();req.on('response', (res) => {console.log(`状态码：${res.statusCode}`);let result = '';res.on('data', (data) => {result += data;});res.on('end', () => {console.log(`客户端接受到响应：${result}`);})});req.setTimeout(60* 1000, () => {console.log('超时了');req.abort();});req.on('error', (error) => {if(error.code === 'ECONNERSET') {console.log('socket端口超时');}else {console.log(`发送错误：${error.code}`);}});
/*** HTTP代理* Created by ligang on 17/5/30.*/import http from 'http';import url from 'url';/*** 服务端*/const server = http.createServer(async (req, res) => {// req.setEncoding('utf-8');/* 超时 2分钟 */res.setTimeout(2 * 60 * 1000, () => {// ...});/* 连接中断 */res.on('close', () => {// ...});let options = {},result = "";options = await new Promise((resolve, reject) => {if(req.method === 'GET') {options = url.parse('http://localhost:10000' + req.url);resolve(options);}else if(req.method === 'POST') {req.on('data', (data) => {result += data;});req.on('end', () => {options = url.parse('http://localhost:10000' + req.url);// post请求必须制定options.headers = {'content-type': 'application/json',};resolve(options);});}});options.method = req.method;let content = await clientHttp(options, result ? JSON.parse(result) : result);res.setHeader('Content-Type', 'text/html');res.write('<html><head><meta charset="UTF-8" /></head>')res.write(content);res.write('</html>');// 结束本次请求res.end();});server.listen(10010, 'localhost', 511);/* 开始监听 */server.on('listening', () => {// ...});/* 监听错误 */server.on('error', (e) => {console.log(e.code);// ...});/*** 客户端* @param options 请求参数* @param data 请求数据*/async function clientHttp(options, data) {let output = new Promise((resolve, reject) => {let req = http.request(options, (res) => {let result = '';res.setEncoding('utf8');res.on('data', function (chunk) {result += chunk;});res.on('end', function () {resolve(result);});});req.setTimeout(60000, () => {console.error(`连接后台超时 ${options.href}`);reject();req.abort();});req.on('error', err => {console.error(`连接后台报错 ${err}`);if (err.code === 'ECONNRESET') {console.error(`socket超时 ${options.href}`);} else {console.error(`连接后台报错 ${err}`);}reject();req.abort();});// 存在请求数据，发送请求数据if (data) {req.write(JSON.stringify(data));}req.end();});return await output;}
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HTTPS使用https协议，默认端口号44； -
HTTPS需要向证书授证中心申请证书； -
HTTPS服务器与客户端之间传输是经过SSL安全加密后的密文数据；
openssl genrsa -out privatekey.pem 1024
openssl req -new -key privatekey.pem -out certrequest.csr
openssl x509 -req -in certrequest.csr -signkey privatekey.pem -out certificate.pem
openssl pkcs12 -export -in certificate.pem -inkey privatekey.pem -out certificate.pfx
import https from 'https';import fs from 'fs';var pk = fs.readFileSync('privatekey.pem'),pc = fs.readFileSync('certificate.pem');var opts = {key: pk,cert: pc};var server = https.createServer(opts);
const options = {hostname: 'localhost',port: 1443,path: '/',method: 'post',key: fs.readFileSync('privatekey.pem'),cert: fs.readFileSync('certificate.pem'),rejectUnhauthorized: false,agent: false // 从连接池中指定挑选一个当前连接状态为关闭的https.Agent }, req = https.request(options);// 或者const options = {hostname: 'localhost',port: 1443,path: '/',method: 'post',key: fs.readFileSync('privatekey.pem'),cert: fs.readFileSync('certificate.pem'),rejectUnhauthorized: false, };// 显示指定https.Agent对象options.agent = new https.Agent(options);var req = https.request(options);觉得本文对你有帮助？请分享给更多人！
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