angular2 守卫不工作在页面刷新 [英] angular2 guard not working on page refresh
问题描述
在每次请求之前,我想确保有一个可用的用户配置文件.我使用 canActivateChild 守卫来做到这一点.
Before every request I want to be sure that there is a user profile available. I use a canActivateChild guard to do this.
根据 angular2 的文档,可以返回一个 observable:https://angular.io/api/router/CanActivateChild
According to the documentation of angular2 it is possible to return an observable: https://angular.io/api/router/CanActivateChild
app.routes.ts
app.routes.ts
export const routes: Routes = [
{
path: '',
canActivateChild: [ProfileGuard],
children: [
{
path: 'home',
component: HomeComponent,
canActivate: [AuthGuard]
},
{
path: 'login',
component: LoginComponent,
canActivate: [GuestGuard]
},
}
];
canActivatedChild
在子路由canActivate
profile.guard.ts:
profile.guard.ts:
export class ProfileGuard implements CanActivateChild {
constructor(private profileService: ProfileService, private snackbar: MdSnackBar) { }
canActivateChild(childRoute: ActivatedRouteSnapshot, state: RouterStateSnapshot): boolean | Observable<boolean> {
if (this.profileService.user == null && localStorage.getItem('__token') != null) {
return this.profileService.loadProfile().map((user) => {
console.log('profile loaded');
this.profileService.user = <UserModel>user.data;
return true;
});
}
return true;
}
}
负载配置文件功能:
public loadProfile(): Observable<any> {
console.log('load');
return this.http.get('/profile').map(res => res.json());
}
当我浏览菜单( 和
routeLink
)时,console.log('profile loaded')
工作.但是如果我用 f5 或通过浏览器重新加载页面,它永远不会到达那里..
When I navigate through the menu (<a>
with routeLink
) the console.log('profile loaded')
works. But if I reload the page with f5 or through the browser, it never gets there..
console.log('load')
总是被执行.
编辑:
如果我在canActivateChild
中返回:
return Observable.of(true).map(() => {
console.log('Test');
return true;
});
它工作正常......我得到了 console.log('test')
It works fine... I get the console.log('test')
推荐答案
我在 @angular/router
的 RC 上运行.在我更新后,它按预期工作.
I was running on a RC of @angular/router
. After i updated this it worked like expected.
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