ng-controller 指令和路由中的控制器有什么区别? [英] What is the difference between an ng-controller directive and a controller in the route?
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问题描述
我完成了 AngularJS 网站上的教程，我注意到在 第 7 步，它们改变了将控制器引入应用程序的方式.最初，他们使用一个指令:
I worked through the tutorial on the AngularJS website and I noticed that in at step 7, they change how a controller is introduced into the application. Initially, they use a directive:
<body ng-controller="PhoneListCtrl">
...
</body>
但是，它后来更改为使用 controller 属性作为 ng-route 的一部分.
However, it later gets changed to use a controller attribute as part of an ng-route.
$routeProvider.
when('/phones', {
templateUrl: 'partials/phone-list.html',
controller: 'PhoneListCtrl'
}).
/* rest of routes here */
这是进行更改的 git diff.这两种技术有区别吗?
Here's the git diff where the change is made. Is there a difference between these two techniques?
推荐答案
使用 ng-controller 指令的控制器:
Controller using a ng-controller directive:
- 在
ng-controller元素上创建了一个新的 $scope. - 显式视图到控制器的连接
- 通过检查元素等可见
- A new $scope is created on
ng-controllerelement. - Explicit view-to-controller connection
- Visible with inspect element, etc
路由中的控制器:
- 在
ng-view元素上为每个路由创建一个新的 $scope. - 控制器可以请求路由解析中定义的依赖项.
- 可选的视图到控制器连接.建议采用命名约定，将控制器的路由映射到视图.
- A new $scope is created per route on the
ng-viewelement. - The controller can request dependencies defined in the route resolve.
- Optional view-to-controller connection. Recommended to have a naming convention that maps routes to controllers to views.
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