Backbone Router

动态路由

大部分非常灵活的框架允许你定义静态、动态的路由，可带参数。举个例子你希望得到一个带id的url的请求。 

这是你的url    http://example.com/#/posts/12

当这个url 触发时你想到得到url字符串里的id    ,以下是实现代码

<script>
    var AppRouter = Backbone.Router.extend({
        routes: {
            "/posts/:id": "getPost",
            "*actions": "defaultRoute" // Backbone will try match the route above first
        },
        getPost: function( id ) {
            // Note the variable in the route definition being passed in here
            alert( "Get post number " + id );   
        },
        defaultRoute: function( actions ){
            alert( actions ); 
        }
    });
    // Instantiate the router
    var app_router = new AppRouter;
    // Start Backbone history a neccesary step for bookmarkable URL's
    Backbone.history.start();

</script>

routes: {
  "/posts/:id":"getPost",    //<a href="http://example.com/#/posts/121">Example</a>
  "/download/*path": "downloadFile", //<a href="http://example.com/#/download/user/imges/hey.gif">Example</a>      *能匹配多个链接 
  "/:route/:action": "loadView",    // //<a href="http://example.com/#/dashboard/graph">Example</a>     //route  action 
},

getPost: function( id ) {
    alert(id);
},

downloadFile: function(path){
    alert(path);
},
loadView:function(route,action) {
  alert(route,action);
}

: 会将匹配到变量传递到处理的函数

Routes非常的强大，理想情况下不应该有太多。你应该使用锚点来做SEO,用google 查一下   “google seo hashbangs”记得为出现的错误请求。