我正在尝试实现登录并从Auth0注册 . 我从Auth0网站上执行了以下步骤:
https://auth0.com/docs/quickstart/spa/angular2/01-login
我正在使用Angular 2 RC5
这是我的文件的样子:
app.component.html
<div class="navbar-header">
<a class="navbar-brand" href="#">Auth0 - Angular 2</a>
<button class="btn btn-primary btn-margin" (click)="auth.login()" *ngIf="!auth.authenticated()">Log In</button>
<button class="btn btn-primary btn-margin" (click)="auth.logout()" *ngIf="auth.authenticated()">Log Out</button>
</div>
app.component.ts
从'@ angular / core'导入;从“./auth.service”导入;
@Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ['./app.component.css'],
})
export class AppComponent {
constructor(private auth: Auth) {}
}
auth.service.ts
import { Injectable } from '@angular/core';
import { tokenNotExpired } from 'angular2-jwt';
// Avoid name not found warnings
declare var Auth0Lock: any;
@Injectable()
export class Auth {
// Configure Auth0
lock = new Auth0Lock('MY_CLIENT_ID', 'MY_DOMAIN.auth0.com', {});
constructor() {
// Add callback for lock `authenticated` event
this.lock.on("authenticated", (authResult) => {
localStorage.setItem('id_token', authResult.idToken);
});
}
public login() {
// Call the show method to display the widget.
this.lock.show();
};
public authenticated() {
// Check if there's an unexpired JWT
// This searches for an item in localStorage with key == 'id_token'
return tokenNotExpired();
};
public logout() {
// Remove token from localStorage
localStorage.removeItem('id_token');
};
}
但我在Chrome Developer JavaScript控制台中收到了以下错误:
EXCEPTION: Error in ./AppComponent class AppComponent_Host - inline template:0:0
EXCEPTION: Error in ./AppComponent class AppComponent_Host - inline template:0:0
ORIGINAL EXCEPTION: No provider for Auth!
ORIGINAL STACKTRACE:
Error: DI Exception
at NoProviderError.BaseException [as constructor] (exceptions.js:27)
at NoProviderError.AbstractProviderError [as constructor] (reflective_exceptions.js:43)
at new NoProviderError (reflective_exceptions.js:80)
at ReflectiveInjector_._throwOrNull (reflective_injector.js:786)
at ReflectiveInjector_._getByKeyDefault (reflective_injector.js:814)
at ReflectiveInjector_._getByKey (reflective_injector.js:777)
at ReflectiveInjector_.get (reflective_injector.js:586)
at NgModuleInjector.get (ng_module_factory.js:98)
at DebugAppView._View_AppComponent_Host0.createInternal (AppComponent.ngfactory.js:16)
at DebugAppView.AppView.create (view.js:101)
ERROR CONTEXT:
DebugContext {_view: _View_AppComponent_Host0, _nodeIndex: 0, _tplRow: 0, _tplCol: 0}_nodeIndex: 0_staticNodeInfo: (...)_tplCol: 0_tplRow: 0_view: _View_AppComponent_Host0component: (...)componentRenderElement: (...)context: (...)injector: (...)providerTokens: (...)references: (...)renderNode: (...)source: (...)__proto__: Object
Unhandled Promise rejection: EXCEPTION: Error in ./AppComponent class AppComponent_Host - inline template:0:0
ORIGINAL EXCEPTION: No provider for Auth!
ORIGINAL STACKTRACE:
Error: DI Exception
at NoProviderError.BaseException [as constructor] (http://localhost:4200/main.bundle.js:1867:23)
at NoProviderError.AbstractProviderError [as constructor] (http://localhost:4200/main.bundle.js:29230:16)
at new NoProviderError (http://localhost:4200/main.bundle.js:29267:16)
at ReflectiveInjector_._throwOrNull (http://localhost:4200/main.bundle.js:58584:19)
at ReflectiveInjector_._getByKeyDefault (http://localhost:4200/main.bundle.js:58612:25)
at ReflectiveInjector_._getByKey (http://localhost:4200/main.bundle.js:58575:25)
at ReflectiveInjector_.get (http://localhost:4200/main.bundle.js:58384:21)
at NgModuleInjector.get (http://localhost:4200/main.bundle.js:42059:52)
at DebugAppView._View_AppComponent_Host0.createInternal (AppComponent.ngfactory.js:16:70)
at DebugAppView.AppView.create (http://localhost:4200/main.bundle.js:59148:21)
ERROR CONTEXT:
[object Object] ; Zone: <root> ; Task: Promise.then ; Value: ViewWrappedException {_wrapperMessage: "Error in ./AppComponent class AppComponent_Host - inline template:0:0", _originalException: NoProviderError, _originalStack: "Error: DI Exception↵ at NoProviderError.BaseExc…e (http://localhost:4200/main.bundle.js:59148:21)", _context: DebugContext, _wrapperStack: "Error: Error in ./AppComponent class AppComponent_… at http://localhost:4200/main.bundle.js:27889:27"}
Error: Uncaught (in promise): EXCEPTION: Error in ./AppComponent class AppComponent_Host - inline template:0:0(…)
并且网页是空白的 . 什么也没出现 .
任何帮助将不胜感激 .
干杯,
4 回答
这就是我实现的方式,并且Code Geek工作得很好
app.module.ts
index.html
app.component.ts
这对我有用:
来自'@ angular / core'的`import ;从'@ angular / router'导入{Router,CanActivate,ActivatedRouteSnapshot,RouterStateSnapshot};
@Injectable()导出类AuthGuard实现CanActivate {
}`
在路由器中使用:
export const ROUTES: Routes = [ { path: '', component: YourComponent, canActivate: [AuthGuard]} ];
并在登录时设置本地存储:
localStorage.setItem('userId', id);
在组件元数据中,添加: -
Using services
要么 :-
将其包含在ngModule元数据中: -
})
Refer here
这些步骤没有提及但是,您需要在index.html中添加以下脚本 .
当我这个网站开始加载时,现在我得到了一个不同的错误 .
core.umd.js?e2a5:3462 EXCEPTION:./AppComponent类中的错误AppComponent - 内联模板:4:70引起:无法读取未定义的属性'authenticated'
如果我能解决这个问题,我会告诉你 .