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Backbone.js的Hello World程序实例_其它

WBOY
Release: 2016-05-16 15:53:50
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新建一个api.php文件,内容:
 

复制代码 代码如下:

 header('Content-Type: application/json; charset=utf-8');
die(json_encode(array('name'=>'tom')));
 

新建一个index.html文件。(backbone基于jquery、underscore,我们使用Mustache来做模板解析,当然用其他的haml、jade,或者underscore里面的模板也都是可以)

内容:

复制代码 代码如下:



 
  New Document





 
 
 

<script></script>

{{name}} says: {{message}} 


 

新建一个custom.js文件,内容:

复制代码 代码如下:

// 这是一个管理着 视图/控制/模型 的全局类
var App = {
    Models: {},
Views: {},
Controllers: {},
Collections: {},
initialize: function() {
new App.Controllers.Routes();
        Backbone.history.start() // 要驱动所有的Backbone程序,Backbone.history.start()是必须的。
    }
};
App.Models.Hello = Backbone.Model.extend({
    url: function() {
        return '/api.php'; // 获得数据的后台地址。
    },
    initialize: function() {
     this.set({'message':'hello world'}); // 前端定义一个message字段,name字段由后端提供。
    }
});
App.Views.Hello = Backbone.View.extend({
el: $("body"),
template: $("#hello-container-template").html(),
initialize: function(options){
this.options = options;
this.bind('change', this.render);
this.model = this.options.model;
},
render: function(){ // render方法,目标只有两个:填充this.el,返回this以便链式操作。
$(this.el).html(Mustache.to_html($(this.el).template,this.model.toJSON()) );
return this
}
});
App.Controllers.Routes = Backbone.Controller.extend({
routes: {
"!/hello" : "hello",//使用#!/hello驱动路由
},
hello : function() {
//新建一个模型,模型向后端请求更新内容成功后根据模型渲染新页面
var helloModel = new App.Models.Hello;
helloModel.fetch({
success: function(model){
var helloView = new App.Views.Hello({model: model});
helloView.trigger('change');
}
})
}});
App.initialize();
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