Angular 2,从不为实现OnActivate的组件调用routerOnActivate方法

我正在尝试使用Angular 2 Router记录当前路由,使用官方文档中的示例代码： https://angular.io/docs/ts/latest/api/router/OnActivate-interface.html

import {Component} from 'angular2/core';
import {
    OnActivate,Componentinstruction
} from 'angular2/router';


@Component({SELEctor: 'header-title',template: `<div>routerOnActivate: {{log}}</div>`})
export class Headertitle implements OnActivate {
    log: String = '';

    routerOnActivate(next: Componentinstruction,prev: Componentinstruction) {
        console.log('Hello on activate');
        this.log = `Finished navigaTing from "${prev ? prev.urlPath : 'null'}" to "${next.urlPath}"`;
    }
}

从不调用方法routerOnActivate.

我使用RouteConfig注释配置了路由：

@RouteConfig([
    {path: '/',component: Home,name: 'Index',data: {title: 'Index page'}},{path: '/home',name: 'Home',data: {title: 'Welcome Home'}},{path: '/**',redirectTo: ['Index']}
])

我应该在路由器中配置其他东西来激活监听器吗？