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Web App Mvc
 

Web App Mvc

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    Web App Mvc Web App Mvc Presentation Transcript

    • Web App MVC Jit Im Will 小问
    • Front + Back
    • JavaScript MVC + Node.js MVC
    • Front
    • jQuery MooTools YUI Prototype ExtJS Dojo
    • Mustache.js Underscore.js Backbone.js Socket.io jQuery
    • Back
    • ExpressJS Web.js Connect
    • Underscore.js Socket.io Backbone.js JSData.js MongoSkin Web.js
    • 前后端 MVC 交互 传统 /*PHP*/ $result = mysql_query ( 'SELECT name FROM users' ); while ( $row = mysql_fetch_array ( $result )) { echo &quot; <b> &quot; . $row [ 'name' ]. &quot; </b> &quot; ; echo &quot; <br/> &quot; ; } //jQuery $ . get ( location . origin + '/names.php' ) . done (function ( data ) { $ ( 'body' ). append ( data ); });
      • 服务器运算延迟!
      • HTTP 传输性能有限!
      • 终端设备性能大大浪费!
    • 高性能 //Node.js with Web.js and MongoSkin var getRouter = { 'names' : function ( req , res , qs ) { db . collection ( 'names' ) . find ({}) . toArray (function ( err , names ) { res . sendJSON ( names ); }) } }; web . get ( getRouter ); 前后端 MVC 交互
    • 前后端 MVC 交互 高性能 //jQuery, Mustache.js $ . get ( location . origin + ' /names ' ) . done (function ( data ) { var $names = JSON . parse (data); $ . get ( location . origin + ' /tmlp/names.html ' ) . done (function ( data ) { $html = Mustache . to_html (data, {names: $names }); $( ' body ' ) . append ( $html ); }); });
    •  
    • 终端性能
      • CPU 运算
        • V8 来自 Google 的基于 C++ 的高性能 JavaScript 引擎
        • Worker API 多线程 JavaScript 运行机制
      • GPU 硬件加速
        • Canvas 绘图加速
        • Video API 解码加速
        • DOM 渲染加速
      • 移动终端的超强交互性能
    • 终端性能
      • 存储机制
        • Cookies
        • localStorage
        • sessionStorage
        • Web SQL
        • Cache
      • 交互机制
        • WebSocket
        • Message Model
        • Ajax Level 2
        • ……
      不仅不能避免缓存, 而且要主动存储! 不要让 Web 成为 Long Polling 的天下!
    • 服务端资源 ¥ 5800 / 年 Xeon 双核, 1.5G 内存, 150G 存储空间,千兆带宽光纤
    • 服务端资源 ¥ 25500 元 / 年! Xeon 八核, 16G 内存, 750G 存储空间,千兆带宽光纤
    • 服务器资源
      • HTTP 资源
      • TCP 资源
      • LAN 资源
      • 存储资源
      • 内存资源
      • 数据库资源
      • CPU 资源
      • ……
    • NoSQL 垂直查询 异步通信 关系链 线程运算 垂直查询 关系链 异步通信 NoSQL NoSQL 关系链
    • 前后端优化 Quick Simple Light MVC 高速架构 NoSQL 数据模型 JSON 轻量传输
    • JavaScript — 因为不严谨而飞速发展的脚本语言 Node.js — 基于不严谨的强悍服务器 Web.js — 基于简易的高性能 Node.js 开发框架
    • require ( 'webjs' ). run () Simple Deployment
    • File System
    • //ExpressJS var app = require ( 'express' ). createServer (); app . get ( '/*' , function ( req , res ) { res . sendfile ( req . get ( 'content-disposition' , 'filename' )); }); app . listen ( 80 ); //Web.js require ( 'webjs' ). run () //Node.js var http = require ( 'http' ), fs = require ( 'fs' );……… server . on ( 'request' , function ( req , res ) { ……… }). listen ( 80 );
    • Node.js MVC
    • M Model
    •  
    • var Person = Backbone.Model.extend({ sayHello : function () { console.log(this.get('name')); } }); var me = new Person({name: 'Will'}); me.sayHello(); // -> 'Will'
    • var People = Backbone.Collection.extend({ sayHello : function () { this.map(function (person) { return this.get('name') + 'say: &quot;Hello, I`m ' + this.get('name') + '.&quot;n'; }); } }); var w3ctech = new People; w3ctech.add({name: 'Will'}, {name: 'Foo'}, {name: 'Bar'}); w3ctech.sayHello(); /** -> Will say: &quot;Hello, I`m Will.&quot; * Foo say: &quot;Hello, I`m Foo.&quot; * Bar say: &quot;Hello, I`m Bar.&quot; **/
    • V View
    • { Mustache.js
    • Mustache.js < table > < tbody > {{# peoples }} {{# Man }} < tr > < td >{{ Name }}</ td > < td >{{ Age }}</ td > < td >{{ Sex }}</ td > </ tr > {{/ Man }} {{/ peoples }} </ tbody > </ table > 模版
    • Mustache.js var obj = { peoples : [ { Name : 'Will' , Age : 15 , Sex : 'Man' }, { Name : 'Foo' , Age : 30 , Sex : 'Woman' }, { Name : 'Bar' , Age : 18 , Sex : 'Man' }], Man : function () { if ( this . Sex == 'Man' ) { return function ( text , render ) { render ( text ); } } } }; 对象
    • Web.js with Mustache.js
      • var getRouter = {
      • '^mans' : function ( req , res , qs ) {
      • mansHtml = web . render ( 'mans' , obj );
      • res . send ( mansHtml );
      • }
      • };
      • web . set ( 'tmplDir' , 'tmlps' )
      • . get ( getRouter );
    • C Controller
    • Web.js
      • var postRouter = {
      • 'seturlrouter' : function ( req , res , qs ){
        • web . get ({ qs . key : qs . value });
        • res . send ( 'Set success' );
        • }
      • };
      • web . post ( postRouter );
    • JavaScript MVC
      • //For IE
      • function parseQs () {
      • var qs = ( location . search > 0 ? location . search . substring ( 1 ) : '' ),
      • params = {},
      • items = qs . split ( &quot;&&quot; ),
      • _item = null ;
      • for (var i = 0 ; i < items . length ; i ++) {
      • item = items [ i ];
      • params [ decodeURIComponent ( item [ 0 ])] = decodeURIComponent ( item [ 1 ]);
      • }
      • return params ;
      • }
      • location . qs = parseOs ();
      JavaScript MVC
    • JavaScript MVC //For Chrome, FireFox and more location . __defineGetter__ ( 'qs' , function() { var qs = ( location . search > 0 ? location . search . substring ( 1 ) : '' ), params = {}, items = qs . split ( &quot;&&quot; ), _item = null ; for (var i = 0 ; i < items . length ; i ++) { item = items [ i ]; params [ decodeURIComponent ( item [ 0 ])] = decodeURIComponent ( item [ 1 ]); } return params ; });
    • JavaScript MVC (function ( $ ) { $ . getScript ( location . origin + '/js/web-client.js' ); //Web.js for Client var getRouter = { 'getsomething' : function () { $ ( 'body' ). append ( web . getData ( 'something' ) . render ( 'someTmpl' ) ); } }; web . conn ( location . origin ) . get ( getRouter ) })( jQuery );
    • Page JavaScript MVC Node.js 3.Data Trans 2.Page Action Router 1.Server Router
    • http://www.iwillwen.com https://github.com/iwillwen/Web.js
    • Q&A