為什么80%的碼農都做不了架構師?>>> ??
( 基于 Express 4.x )
啟動文件 /app.js:
var express = require('express');
var bodyParser = require('body-parser');
var proxy = require('http-proxy-middleware');
var path = require('path');var index = require('./routes/index');
var data = require('./routes/data');var app = express();/* 設置靜態目錄 */
app.use(express.static('src'));/* 啟用反向代理 */
var options = {target: 'http://localhost:8080/h5', // 目標主機changeOrigin: true,//secure: false,// ws: true,// pathRewrite: {// '^/api' : '/h5/api'// }
};
var apiProxy = proxy(options); // 開啟代理功能,并加載配置
app.use('/api', apiProxy); // 對地址為’/‘的請求全部轉發// Node Express API 路由配置
app.use('/', index);
app.use('/data', data);// // catch 404 and forward to error handler
// app.use(function(req, res, next) {
// var err = new Error('Not Found');
// err.status = 404;
// next(err);
// });// // error handler
// app.use(function(err, req, res, next) {
// // set locals, only providing error in development
// res.locals.message = err.message;
// res.locals.error = req.app.get('env') === 'development' ? err : {};
//
// // render the error page
// res.status(err.status || 500);
// res.render('error');
// });/* json 輸出支持, 啟動服務 */
app.use(bodyParser.json());
app.listen(7788);var url = "http://localhost:7788";
console.log('listen: ' + url);/* 啟動瀏覽器訪問站點 */
var child_process = require("child_process");
var cmd = 'start ' + url;if(process.platform == 'linux'){cmd = 'xdg-open ';
}else if(process.platform == 'darwin'){cmd = 'open ';
}
// else{ // process.platform == 'win32'
// cmd = 'start "%ProgramFiles%\Internet Explorer\iexplore.exe"';
// }child_process.exec(cmd + ' "'+url + '"');
//child_process.exec(cmd + url);
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路由配置 /routes/index.js
var express = require('express');
var router = express.Router();/* GET home page data. */
router.get('/', function(req, res, next) {res.send({ title: '首頁' });
});router.get('/login', function(req, res, next) {res.send({ title: '登錄' });
});module.exports = router;
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路由配置 /routes/data.js
var express = require('express');
var router = express.Router();
var fs = require('fs');
var PATH = './public/data/';//讀取數據模塊,供客戶端調用
//查詢接口,token校驗
//公共接口,無需校驗
//data/read?type=it
//data/read?type=it.json
router.get('/read', function(req, res, next) {var type = req.param('type') || "";fs.readFile(PATH + type + '.json', function (err, data){if(err){return res.send({success: false,message: '讀取文件異常'});}var COUNT = 50;// TODO: try{}catch(){}var obj =[];try{obj = JSON.parse(data.toString());}catch(e){obj = [];}if(obj.length > COUNT){obj = obj.slice(0, COUNT);}return res.send({success: true,data:obj});});
});// 數據存儲模塊——后臺開發使用
router.post('/write',function(req, res, next){if(!req.cookies.user){return res.render('login',{});}// 文件名var type = req.param('type') || "";// 關鍵字段var url = req.param('url') || '';var title = req.param('title') || '';var img = req.param('img') || '';if(!type || !url || !title || !img){return res.send({success: false,message:'提交的字段不全'});}//1)讀取文件var filePath = PATH + type + '.json';fs.readFile(filePath, function(err, data){if(err){return res.send({success: false,message: '讀取數據失敗'});}var arr = JSON.parse(data.toString());//代表每一條記錄var obj = {img: img,url: url,title: title,id: guidGenerate(),time: new Date()};arr.splice(0, 0, obj);//2)寫入文件var newData = JSON.stringify(arr);fs.writeFile(filePath, newData, function(err){if(err){return res.send({status:0,info: '寫入文件失敗'});}return res.send({success: true,message: obj});});});
});//閱讀模塊寫入接口 后臺開發使用
router.post('/write_config', function(req, res, next){if(!req.cookies.user){return res.render('login',{});}//TODO:后期進行提交數據的驗證//防xss攻擊 xss// npm install xss// require('xss')// var str = xss(name);var data = req.body.data;//TODO : try catchvar obj = JSON.parse(data);var newData = JSON.stringify(obj);// 寫入fs.writeFile(PATH + 'config.json',newData, function(err, data){if(err){return res.send({success: false,message: '寫入數據失敗'});}return res.send({success: true,message:'數據寫入成功',data:newData})})
});//登錄接口
router.post('/login', function(req, res, next){//用戶名、密碼、驗證碼var username = req.body.username;var password = req.body.password;//TODO :對用戶名、密碼進行校驗//xss處理、判空//密碼加密 md5(md5(password + '隨機字符串'))//密碼需要加密-> 可以寫入JSON文件if(username === 'admin' && password === '123456'){res.cookie('user',username);return res.send({success: true});}return res.send({success: false,message: '登錄失敗'});
});// guid
function guidGenerate() {return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {var r = Math.random() * 16 | 0,v = c == 'x' ? r : (r & 0x3 | 0x8);return v.toString(16);}).toUpperCase();
}module.exports = router;
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