Question

我有一条主路线，它有子路线，而那些孩子是延迟加载的模块，在每个延迟加载的模块中，我也有单独的路由。我遇到的问题是当我保护主路线以防止加载多次调用的子路径时

主要路由代码

export const PROVIDER_ROUTES: Route = {
    path: 'provider',
    component: ProviderComponent,
    canActivateChild:[AuthGuard],
    children: [
        { path: '', redirectTo: 'courses', pathMatch: 'full' },
        { path: 'courses', loadChildren: 'app/provider/course/course.module#CourseModule' },

    ],

};

延迟加载路由代码

const routes: Routes = [
  {
    path: '',
    component: CourseListComponent,
    resolve: { courses: CourseListResolver },
    children: [
      {
        path: ':id',
        component: CoursesEditComponent,
        resolve: { organizations: AddCourseResolver }
      },
      {
        path: ':id/edit',
        component: CoursesEditComponent,
        resolve: { course: CourseEditResolver }
      },
      {
        path: ':id/assign/:orgId',
        component: CourseAssignComponent,
        resolve: { subOrganizations: LicenseAssignResolver }
      },
      {
        path: ':id/update/:orgId',
        component: CourseAssignComponent,
        resolve: { license: LicenseEditResolver }
      }

    ]
  },
];

@NgModule({
  imports: [RouterModule.forChild(routes)],
  providers: [
    CourseListResolver,
    CourseEditResolver,
    LicenseAssignResolver,
    LicenseEditResolver,
    AddCourseResolver
  ],
  exports: [RouterModule],
})
export class CourseRoutingModule { }

export const RoutedComponents = [
  CourseListComponent,
  CoursesEditComponent,
  CourseAssignComponent
];

AuthGuard代码

export class AuthGuard implements CanActivateChild {

  constructor(private authService: AuthService, private router: Router, private commonService:CommonService) { }
  canActivateChild(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<boolean> {
    return this.authService.isUserLoggedIn().map((result: EditUser) => {
      console.log(result);
      if (result != null && result.organizations.length > 0) {
        this.commonService.isAuthenticated = true;
        return true;
      }
      this.commonService.isAuthenticated = false;
      this.router.navigate(["/provider"])
      return false;
    });

AuthGuard函数多次调用为什么？

Answer 1

你有两个级别的激活路线，所以它将检查每个级别的守卫。如果您想要将其召唤一次，只需将警卫向下移动到子级别。

Answer 2

@Adawg的意思是：

path: '',
component: CourseListComponent,
resolve: { courses: CourseListResolver },
canActivateChild:[AuthGuard],
children: [

在延迟加载的路由部分而非根路由中放入 canactivatechild

具有延迟加载模块路由的Angular 2 Routing Guard CanActivateChild

2 个答案: