我正面临 MEAN 堆栈应用程序的 AuthGaurd 问题。canActivate
当我浏览页面链接时,AuthGaurd工作正常。但是当刷新页面时 - 页面不工作(无限期保持加载状态)
这是 AuthGuard 实现 -
@Injectable()
export class AuthGuard implements CanActivate {
constructor(@Inject(PLATFORM_ID) private platform: any, private router: Router, private logInService: LoginService) { }
canActivate(route: ActivatedRouteSnapshot): boolean | Observable<boolean> | Promise<boolean> {
if (isPlatformBrowser(this.platform)) {
if (this.logInService.loggedIn && !this.logInService.isTokenExpired(this.logInService.getToken())) {
return true;
}
this.router.navigate(['/user/login']);
return false;
}
}
}
这是我的登录服务,它也可以正常工作 -
public get loggedIn(): boolean {
if (isPlatformBrowser(this.platform)) {
return (localStorage.getItem(TOKEN_NAME) !== null);
}
}
isTokenExpired(token?: string): boolean {
if (isPlatformBrowser(this.platform)) {
if(!token) token = this.getToken();
if(!token) return true;
const date = this.getTokenExpirationDate(token);
if(date === undefined) return false;
return !(date.valueOf() > new Date().valueOf());
}
}
getTokenExpirationDate(token: string): Date {
const decoded = jwt_decode(token);
if (decoded.exp === undefined) return null;
const date = new Date(0);
date.setUTCSeconds(decoded.exp);
return date;
}
我无法弄清楚这个问题。提前致谢!