我已经使用Angular 6创建了一个前端，并且想要基于角色的授权，并且已经使用JWT helper-service实现了。不幸的是，成功授权后我无法导航至特定页面，我尝试了几种方法，但无法获得正确的解决方案，请帮助我。我是有经验的新手，似乎一切正常，但是导航到特定页面是问题所在。
login.component.ts
toString('Z');role.guard.ts
import { Component, OnInit } from '@angular/core';
import { AuthService } from 'src/app/auth.service';
import { Router } from '@angular/router';
@Component({
selector: 'app-login',
templateUrl: './login.component.html',
styleUrls: ['./login.component.css']
})
export class LoginComponent implements OnInit {
constructor(private Auth: AuthService,private router: Router) { }
ngOnInit() {
}
loginUser(event)
{
event.preventDefault()
const target = event.target
const email= target.querySelector('#email').value
const password = target.querySelector('#password').value
this.Auth.getUserDetails(email,password).subscribe(data =>{
if(this.Auth.isAuthenticated(),data.token)
{
localStorage.setItem('token',data.token);
return true;
}
else
{
window.alert(data.message);
}
});
console.log(email,password)
}
}
auth.guard.ts
import { Injectable } from '@angular/core';
import { CanActivate, ActivatedRouteSnapshot, RouterStateSnapshot, UrlTree, Router } from '@angular/router';
import { Observable } from 'rxjs';
import { AuthService } from './auth.service';
import decode from 'jwt-decode';
@Injectable({
providedIn: 'root'
})
export class RoleGuard implements CanActivate {
constructor( public auth: AuthService,public router: Router) {}
canActivate(
route: ActivatedRouteSnapshot,
state: RouterStateSnapshot): Observable<boolean | UrlTree> | Promise<boolean | UrlTree> | boolean | UrlTree {
// this will be passed from the route config
// on the data property
const admintype = route.data.admintype;
const token = localStorage.getItem('token');
// decode the token to get its payload
const tokenPayload = decode(token);
if (
!this.auth.isAuthenticated() ||
tokenPayload.role !== admintype
) {
this.router.navigate(['login']);
return false;
}
return true;
}
}
auth.service.ts
import { Injectable } from '@angular/core';
import { CanActivate, ActivatedRouteSnapshot, RouterStateSnapshot, UrlTree } from '@angular/router';
import { Observable } from 'rxjs';
import { AuthService } from './auth.service';
import { UserService } from './user.service';
import { map } from 'rxjs/operators';
import { Router } from '@angular/router'
@Injectable({
providedIn: 'root'
})
export class AuthGuard implements CanActivate {
constructor(private auth: AuthService,private router:Router, private user: UserService)
{
}
canActivate(
next: ActivatedRouteSnapshot,
state: RouterStateSnapshot): Observable<boolean | UrlTree> | Promise<boolean | UrlTree> | boolean | UrlTree {
if (!this.auth.isAuthenticated()) {
this.router.navigate(['login']);
return false;
}
return true
}
}
app.module.ts
import { Injectable } from '@angular/core';
import{ HttpClient } from '@angular/common/http';
import { JwtHelperService } from '@auth0/angular-jwt';
interface myData
{
success:boolean,
message: string,
token:"token"
}
@Injectable({
providedIn: 'root'
})
export class AuthService {
uri : String = 'http://localhost:4000';
private jwtHelper = new JwtHelperService();
constructor(private http: HttpClient) { }
public isAuthenticated(): boolean {
const token = localStorage.getItem('token');
// Check whether the token is expired and return
// true or false
if(token==null)
{
return false;
}
else{
return !this.jwtHelper.isTokenExpired(token)
}
}
getUserDetails(email: String,password:String){
//post these details to the database
return this.http.post<myData>(`${this.uri}/auth`,{ email,password});
}
signupadminsections(email:String,password:String,name:String,admintype:String,college:String,department:String)
{
//add new admin section
return this.http.post(`${this.uri}/register`,{ email,password,name,admintype,college,department});
}
}
这是我在mongodb中的架构：
import { BrowserModule } from '@angular/platform-browser';
import { NgModule, Component } from '@angular/core';
import { RouterModule } from '@angular/router';
import { AuthGuard } from './auth.guard';
import { HttpClientModule } from '@angular/common/http';
import { MatTableModule, MatInputModule, MatSelectModule} from '@angular/material'
import { RoleGuard } from './role.guard'
import { AppRoutingModule } from './app-routing.module';
import { AppComponent } from './app.component';
import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
import { HomeComponent } from './components/home/home.component';
import { LoginComponent } from './components/login/login.component';
import { AdmindashboardComponent } from './components/admindashboard/admindashboard.component';
import { AuthService } from './auth.service';
import { UserService } from './user.service';
import { ViewallstudentsComponent } from './components/viewallstudents/viewallstudents.component';
import { AdminComponent } from './components/admin/admin.component';
import { AddsectionadminsComponent } from './components/addsectionadmins/addsectionadmins.component';
import { PagenotfoundComponent } from './components/pagenotfound/pagenotfound.component';
import { from } from 'rxjs';
import { JwtHelperService, JwtModule } from '@auth0/angular-jwt';
@NgModule({
declarations: [
AppComponent,
HomeComponent,
LoginComponent,
AdmindashboardComponent,
ViewallstudentsComponent,
AdminComponent,
AddsectionadminsComponent,
PagenotfoundComponent
],
imports: [
JwtModule,
MatSelectModule,
MatTableModule,
MatInputModule,
BrowserModule,
HttpClientModule,
AppRoutingModule,
BrowserAnimationsModule,
RouterModule.forChild([
{
path: 'login',
component: LoginComponent
},
{
path: 'admin',
component:AdminComponent,
data:{
admintype:['admin']
},
canActivate :[RoleGuard],
},
{
path:'addsectionadmin',
component:AddsectionadminsComponent,
data:{
admintype:['admin']
},
canActivate:[AuthGuard]
},
{
path: 'admindashboard',
component: AdmindashboardComponent,
data:{
admintype:['sectionadmin']
},
canActivate: [RoleGuard]
},
{
path:'viewallstudents',
component:ViewallstudentsComponent,
canActivate:[AuthGuard]
},
{
path:'**',redirectTo:'pageNotFound'
},
{
path:'',redirectTo:'login',pathMatch:'full'
}
])
],
providers: [ AuthGuard, UserService,AuthService,RoleGuard,JwtHelperService],
bootstrap: [AppComponent]
})
export class AppModule { }
输出无法导航到任何一条特定的路线，一切正常，但是导航是问题所在，我的代码没有看到任何错误