一、繁琐的自建路由
app.js
var server = require(‘./server‘);server.startServer();
server.js
var http = require(‘http‘);var fs = require(‘fs‘);function startServer () { var onRequest = function(request, response) { if (request.url === ‘/‘ || request.url === ‘/home‘) { response.writeHead(200, { ‘Content-Type‘: ‘text/html‘}); fs.createReadStream(__dirname + ‘/index.html‘, ‘utf8‘).pipe(response); } else if (request.url === ‘/review‘) { response.writeHead(200, { ‘Content-Type‘: ‘text/html‘}); fs.createReadStream(__dirname + ‘/review.html‘, ‘utf8‘).pipe(response); } else if (request.url === ‘/api/v1/records‘) { response.writeHead(200, { ‘Content-Type‘: ‘application/json‘ }); var jsonObj = { name: ‘sfafas‘, job: ‘coder‘ } response.end(JSON.stringify(jsonObj)); } else { response.writeHead(200, {‘Content-Type‘: ‘text/html‘}); fs.createReadStream(__dirname + ‘/404.html‘, ‘utf8‘).pipe(response); } } var server = http.createServer(onRequest); server.listen(3000); } console.log(‘finished‘);module.exports.startServer = startServer;
二、重构路由
app.js
var server = require(‘./server‘);var router = require(‘./router‘);var handler = require(‘./handler‘);var handle = {};handle[‘/‘] = handler.home;handle[‘/home‘] = handler.home;handle[‘/review‘] = handler.review;handle[‘/api/v1/records‘] = handler.api_records;server.startServer(router.route,handle);
server.js
var http = require(‘http‘);var fs = require(‘fs‘);function startServer (route,handle) { var onRequest = function(request, response) { route(handle, request.url,response); } var server = http.createServer(onRequest); server.listen(3000); } console.log(‘finished‘);module.exports.startServer = startServer;
handler.js
var fs = require(‘fs‘);function home(response) { response.writeHead(200, { ‘Content-Type‘: ‘text/html‘}); fs.createReadStream(__dirname + ‘/index.html‘, ‘utf8‘).pipe(response);}function review(response) { response.writeHead(200, { ‘Content-Type‘: ‘text/html‘}); fs.createReadStream(__dirname + ‘/review.html‘, ‘utf8‘).pipe(response);}function api_records(response) { response.writeHead(200, { ‘Content-Type‘: ‘application/json‘ }); var jsonObj = { name: ‘sfafas‘, job: ‘coder‘ } response.end(JSON.stringify(jsonObj));}module.exports = { home: home, review: review, api_records: api_records}
router.js
var fs = require(‘fs‘);function route(handle, pathname,response) { console.log(‘Routing a request for‘ + pathname); if (typeof handle[pathname] === ‘function‘) { handle[pathname](response); } else { response.writeHead(200, {‘Content-Type‘: ‘text/html‘}); fs.createReadStream(__dirname + ‘/404.html‘, ‘utf8‘).pipe(response); }}module.exports.route = route;
三、页面整体结构