详解AngularJS通过ocLazyLoad实现动态(懒)加载模块

最近在使用AngularJS,发现AngularJS菜鸟教程上的东西太过于基础,很多东西都没有提及,比如今天的一个关于前端的优化问题,懒加载。通过路由实现地址分发的时候,再通过懒加载模式加载你所需的文件,比如是相关的controller,就是js,这样有利于提高首次加载的负担。

下面就是一个懒加载的实现过程。

实现的过程主要是引用3个主要的JS文件:

<script src="https://www.jb51.net/angular/1.4.8/angular/angular.min.js"></script> <script src="https://www.jb51.net/angular/ui-router/release/angular-ui-router.min.js"></script> <script src="https://www.jb51.net/angular/oclazyload/src/ocLazyLoad.min.js"></script>

然后通过 APP 配置,将依赖的脚本进行注入操作:

var app = angular.module('pkcms', ["ui.router", "oc.lazyLoad"]);   app.config(["$provide", "$compileProvider", "$controllerProvider", "$filterProvider",      function ($provide, $compileProvider, $controllerProvider, $filterProvider) {        app.controller = $controllerProvider.register;        app.directive = $compileProvider.directive;        app.filter = $filterProvider.register;        app.factory = $provide.factory;        app.service = $provide.service;        app.constant = $provide.constant;      }]);     // 按模块化加载其他的脚本文件       app.constant('Modules_Config', [        {          name: 'treeControl',          serie: true,          files: [            "Scripts/angular-bootstrap/ui-bootstrap-tpls-0.14.3.min.js"          ]<br>}]);       app.config(["$ocLazyLoadProvider","Modules_Config",routeFn]);       function routeFn($ocLazyLoadProvider,Modules_Config){        $ocLazyLoadProvider.config({        debug:false,        events:false,        modules:Modules_Config    }); };

以上是初始化动态加载的配置过程。

接着是建立路由:

"use strict" app.config(["$stateProvider","$urlRouterProvider",routeFn]); function routeFn($stateProvider,$urlRouterProvider){ $urlRouterProvider.otherwise("/main"); $stateProvider .state("main",{ url:"/main", templateUrl:"views/main.html", controller:"mainCtrl", controllerAs:"main", resolve:{ deps:["$ocLazyLoad",function($ocLazyLoad){ return $ocLazyLoad.load("controllers/main.js"); }] } }) .state("adminUser",{ url:"/adminUser", templateUrl:"views/adminUser.html", controller:"adminUserCtrl", controllerAs:"adminUser", resolve:{ deps:["$ocLazyLoad",function($ocLazyLoad){ return $ocLazyLoad.load("controllers/adminUser.js"); }] } }) };

最后是按路由配置的在对应目录下建2个HTML页面文件和2个JS文件用做测试

main.html

<div> {{main.value}} </div> adminUser.html <div> {{adminUser.value}} </div>

main.js 

/** * mainCtrl * Created by pkcms.cn on 2016/6/24. */ (function () { "use strict" app.controller("mainCtrl", mainCtrlFn); function mainCtrlFn() { this.value = "Hello World"; } }())

adminUser.js

/** * adminUserCtrlFn * Created by pkcms.cn on 2016/6/24. */ (function () { app.controller('adminUserCtrl',adminUserCtrlFn); function adminUserCtrlFn() { this.value = "welcome to admin user"; } }());

demo下载:angularjs-oclazyload_jb51.rar

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