角2 HTTP抓路由器導航不工作

Question

我檢查用戶的令牌登錄，如果認證失敗（返回401錯誤）我想重定向到登錄。我遇到的問題是，當我犯了錯誤趕上router.navigate不起作用。

constructor(private http: Http , private router : Router) 


authUser(){ 
     return this.http.get(this.baseEndPoint+'/auth/user',Helpers.requestAuthOptions()) 
      .map((response) => response.json()) 
      .catch(this.handleError.bind(this)); 
    } 

public handleError = (error) => { 
     this.router.navigate(['/login']); 
     console.log('Hello!');//Hello appears in my console 
     return Observable.throw(error); 
    }; 

Answer 1

只要導入RxJS catch擴展。 import 'rxjs/add/operator/catch';

How to catch exception correctly from http.request()?