我有一条名为 home 的路线,它有 3 个子路线:文档、邮件和垃圾。在主路由组件中,它有一个名为“user”的变量。我知道有几种方法可以在突出显示的父组件和子组件之间传递信息here,但是我该如何在父/子路由之间传递信息。
{ path: 'home', component: HomeComponent, children: [
{ path: 'documents', component: DocumentsComponent },
{ path: 'mail', component: MailComponent },
{ path: 'trash', component: TrashComponent },
]
},
Service
import { Injectable } from '@angular/core';
@Injectable()
export class HomeService {
// Mock user, for testing
myUser = {name:"John", loggedIn:true};
// Is Super Admin
isLogged():boolean {
if(this.myUser.role == true){
return true ;
}
return false ;
}
}
成分
constructor(public router: Router, public http: Http, private homeService: HomeService) {
}
isLogged(){
return this.homeService.isLogged();
}
Template
<div class="side-nav fixed" >
<li style="list-style: none">
<img alt="avatar" class="circle valign profile-image" height="64" src=
"../images/avatar.jpg" width="64">
<div class="right profile-name">
<!-- Value not changing even with service -->
{{myUser.role}}
</div>
</li>