TypeError:guard不是函数

Question

我不知道是否让一些细节通过,或者我做错了什么,但我找不到导致错误的原因.我的目标是做一些不断检查用户每次访问页面内路由时是否登录的内容.我使用Angular 5.

App.module:

import { BrowserModule } from '@angular/platform-browser';
import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
import { NgModule } from '@angular/core';

import { AppRoutingModule } from './app-routing.module';
import { AppComponent } from './app.component';
import { LoginComponent } from './pages/autenticacao/login.component';
import { AuthService } from './auth/auth.service';
import { RoutesInterceptor } from './auth/routes.interceptor';

import * as $ from 'jquery';

@NgModule({
  declarations: [ AppComponent, LoginComponent ],
  imports: [
    BrowserModule,
    BrowserAnimationsModule,
    AppRoutingModule,

  ],
  bootstrap: [AppComponent],
  providers: [ AuthService, RoutesInterceptor, ],
})
export class AppModule {
}

Routes.intercpetor:

import { Injectable } from '@angular/core';
import { CanActivate, ActivatedRouteSnapshot, RouterStateSnapshot } from '@angular/router';

import { AuthService } from './auth.service';

@Injectable()
export class RoutesInterceptor implements CanActivate {

constructor(private auth: AuthService) {}

canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): boolean {
    return this.auth.isUserAuthenticated();
}
}

我的路线:

import { NgModule } from '@angular/core';
import { ExtraOptions, RouterModule, Routes } from '@angular/router';

import { LoginComponent } from './pages/autenticacao/login.component';
import { RoutesInterceptor } from './auth/routes.interceptor';

const routes: Routes = [
  { path: 'pages', loadChildren: 'app/pages/pages.module#PagesModule', canActivate: [RoutesInterceptor] },
  { path: 'login', component: LoginComponent },
  { path: '', redirectTo: 'pages', pathMatch: 'full' },
  { path: '**', redirectTo: 'pages' },
];

const config: ExtraOptions = {
  useHash: true,
};

@NgModule({
  imports: [RouterModule.forRoot(routes, config)],
  exports: [RouterModule],
})
export class AppRoutingModule {
}

Answer 1

另一个可能导致这种情况的问题是,如果你试图使用CanActivate后卫作为另一种类型的后卫,比如CanActivateChild

Answer 2

我改变了部分代码并且它有效

import { Injectable } from '@angular/core';
import { CanActivate, ActivatedRouteSnapshot, RouterStateSnapshot, Router } from '@angular/router';

import { AuthService } from './auth.service';

@Injectable()
export class RoutesInterceptor implements CanActivate {

constructor(private auth: AuthService, private route: Router) {}

  canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): boolean {
    if (this.auth.isUserAuthenticated()) {
        return true;
    }
    this.route.navigate(['./login']);
    return false;
  }
}

如果您还没有登录,我忘了重定向