在Angular2 Dart中设置路由和RouterLink的正确方法是什么

Question:在Angular2 Dart中设定Router&amp；RouterLink的正确方式是什么？

main.dart

import 'package:angular2/angular2.dart';
import 'package:angular2/router.dart';

import 'package:angular2/src/reflection/reflection.dart' show reflector;
import 'package:angular2/src/reflection/reflection_capabilities.dart' show ReflectionCapabilities;


@Component(
    selector: 'home'
)
@View(
    template: '<h1>I am Home</h1><a router-link="child">Go Child</a>',
    directives: const [RouterOutlet, RouterLink]
)
class Home {}

//
//
//

@Component(
  selector: 'child'
)
@View(
    template: '<h1>I am Child</h1><a router-link="home">Go Home</a>',
    directives: const [RouterOutlet, RouterLink]
)
class Child {}

//
//
//

@Component(
  selector: 'index'
)
@View(
  template: '''
  <router-outlet></router-outlet>
            ''',
  directives: const [RouterOutlet, RouterLink]
)
class Index {
  Router router;

  Index(Router this.router) {
    router.config({ 'path': '/child', 'component': Child, 'alias': 'child'});
    router.config({ 'path': '/', 'component': Home, 'alias': 'home'});
  }

}

main() {
  reflector.reflectionCapabilities = new ReflectionCapabilities();
  bootstrap(Index, routerInjectables);
}

Here's my approach:

我认为newHref会变成null

onAllChangesDone() {
    if (isPresent(this._route) && isPresent(this._params)) {
      var newHref = this._router.generate(this._route, this._params);
      this._href = newHref;
      // Keeping the link on the element to support contextual menu `copy link`

      // and other in-browser affordances.
      print('newHref');
      print(newHref);
      DOM.setAttribute(this._domEl, "href", newHref);
    }

这会导致错误并终止导航请求.

应为字符串

1.闪烁元素.setAttribute_Callback_2_(省道:闪烁:7566)

2元素.setAttribute(DART:HTML:13673)

3.浏览器适配器.setAttribute(包:angular2/src/dom/browser_adapter.dart:258:25)

4路由链接.ONALCHANGESDONE(包:angular2/src/router/router_link.dart:66:23)