6-最基礎的服務-es6寫法

建立server.js

'use strict';
//http模塊
var http = require('http');
//封裝的方法
var handlers = require('./handlers');

//建立服務
var server = http.createServer(function(request, response) {
    //url地址
    var url = request.url;

    if(url === '/'){
        handlers.homepage(request, response);
    }else if (url === "/profile") {
        handlers.profile(request, response);
    } else {
        handlers.notFound(request, response);
    }
});
//端口3000
server.listen(3000);
console.log('start 3000');

handlers.js

'use strict';
//首頁
exports.homepage = function(request, response){
    response.setHeader('Content-Type', 'text/html');
    response.end('<h1>helloworld</h1>')
}
//一個接口
exports.profile = function(request, response){
    var profile = {
        name : 'will',
        age : 35
    }
    response.setHeader('Content-Type','application/json');
    response.end(JSON.stringify(profile));
}

//404
exports.notFound = function(request, response) {
  response.statusCode = 404;
  response.setHeader("Content-Type", "text/html");
  response.end("<h1>404 Not Found!</h1>");
}

es6寫法

1.下載babel-register

npm install babel-register -S

2.下載babel-preset-es2015

npm install babel-preset-es2015 --save-dev

main.js

require('babel-register');
require('./src/server');

server.js

import http from 'http';
import { homepage, notFound } from './handlers';

const server = http.createServer((request, response) =>{
    homepage(request, response);
});

server.listen(3000);
console.log('listen 3000');

handlers.js

export function homepage(request, response){
    response.setHeader("Content-Type", "text/html");
    response.end("hello world");
}

export function notFound(request, response){
    response.setHeader("Content-Type", "text/html");
    response.end("404");
}