Angular 2：“...”的路由生成器未包含在传递的参数中

Question

所以我的 AuthenticationService 中有以下代码。检查登录凭据后，用户会被重定向到他们的个人资料：

authentication.service.ts:

redirectUser(username:string):void {
  // Redirect user to profile on successful login
  this.router.navigate(['../Profile/Feed', {username: username}]);
}

这一切都很好，但是自从我在ProfileComponent 中引入了一些子路由后，我遇到了一些错误。 首先，这是我的带有 RouteConfig 的 AppComponent：

app.ts:

import {Component, ViewEncapsulation} from 'angular2/core';
import {RouteConfig,ROUTER_DIRECTIVES} from 'angular2/router';
import {HTTP_PROVIDERS} from 'angular2/http';

import {HomeComponent} from '../home/home';

import {AuthenticationService} from '../../services/authentication.service';
import {LoginComponent} from '../login/login';
import {ProfileComponent} from '../profile/profile';
import {ProfileService} from '../../services/profile.service';

@Component({
  selector:      'app',
  viewProviders: [AuthenticationService, ProfileService, HTTP_PROVIDERS],
  encapsulation: ViewEncapsulation.None,
  directives:    [
    ROUTER_DIRECTIVES
  ],
  templateUrl:   './components/app/app.html'
})

@RouteConfig([
  {path: '/', component: HomeComponent, as: 'Home'},
  {path: '/inloggen', component: LoginComponent, as: 'Login'},
  {path: '/profile/:username/...', component: ProfileComponent, as: 'Profile'}
])

export class AppComponent {
  ...
}

如您所见，ProfileComponent 内部定义了一些新路由。如图所示：

ProfileComponent.ts:

import {Component, OnInit} from 'angular2/core';
import {RouteConfig,ROUTER_DIRECTIVES, RouteParams, RouterLink, RouterOutlet} from 'angular2/router';
import {ProfileService} from '../../services/profile.service';
import {PROFILE_IMAGES} from '../../constants/constants';
import {WorkoutsComponent} from '../workouts/workouts';
import {FeedComponent} from '../feed/feed';

interface IProfileVM {
  username: string;
  profileUser: Object;
  getProfileData(username:string): void;
}

@Component({
  selector:    'profile',
  templateUrl: './components/profile/profile.html',
  directives:  [RouterOutlet, RouterLink],
  providers:   [ProfileService]
})

@RouteConfig([
  {path: '/nieuwsfeed', component: FeedComponent, as: 'Feed'},
  {path: '/workouts', component: WorkoutsComponent, as: 'Workouts'}
])

export class ProfileComponent implements OnInit, IProfileVM {

  public username:string;
  public profileUser:any;

  constructor(private _profileService:ProfileService,
              private _params:RouteParams) {
    this.username = this._params.get('username');
  }

  ngOnInit() {
    this.getProfileData(this.username);
  }

  getProfileData(username) {
    // Do stuff..
  }
}

所以这里的问题是，在我在 ProfileComponent 中引入一些子路由之前，一切正常。用户被重定向，用户名出现在 URL 中，一切都很好。但是由于我添加了这些子路由，我得到了以下错误：

"Route generator for 'username' was not included in parameters passed."

如果有人可以帮助我，那就太好了！提前致谢！

Answer 1

我认为您最好在路由定义中将嵌套的配置文件组件上移一个级别。任意值username 对配置文件组件路由没有影响。此外，该值实际上在子路由中是必需的，应该在此处定义。

所以父组件路由会从配置文件路由中丢失:username，看起来像这样：

@RouteConfig([
  {path: '/', component: HomeComponent, as: 'Home'},
  {path: '/inloggen', component: LoginComponent, as: 'Login'},
  {path: '/profile/...', component: ProfileComponent, as: 'Profile'}
])

相反，您的配置文件组件将定义 :username 路由参数：

@RouteConfig([
  {path: '/:username/nieuwsfeed', component: FeedComponent, as: 'Feed'},
  {path: '/:username/workouts', component: WorkoutsComponent, as: 'Workouts'}
])

这种方法看起来更直观，并且会减少在嵌套路由组件之间导航的问题。