Question

我正在尝试创建一个observable，但我的代码失败了：

get(url: string, options?: RequestOptionsArgs): Observable<Response> {
    this._log.debug('SecureHttpService#get: ' + url);

    let resultObservable = Observable.create((observer) => {
      this._log.debug('resultObservable');
      this.tryReActivateToken().then(
        (result) => {
          this._log.debug('resultObservable#then#result: ' + result);
          if (result === true) {
            let headers = new Headers();
            headers.append('Authorization', 'Bearer ' + this.access_token);
            headers.append('X-Requested-With', 'XMLHttpRequest');
            // headers.append('Accept', 'json');

            this._log.debug(this.access_token);
            let superGetObs = super.get(url, { headers: headers, withCredentials: true });

            superGetObs.subscribe(
              (next) => { observer.onNext(next); },
              (error) => { observer.onError(error); },
              () => { observer.onCompleted(); }
            );
          } else {
            observer.onError(new Error('Could not log you in automatically'));
          }
        }, (error) => { this._log.debug('resultObservable#then#error: ' + error); observer.onError(error); });
    });

    return resultObservable;
  }

我得到的错误是：http://pastebin.com/BBcdc9sy

我做错了什么？

Answer 1

在RxJs中，observer的方法被重命名。您应该使用error代替onError。

Answer 2

我认为你写错了'onError'的语法。真的是'错误'。你可以尝试这个，我希望它能解决你的问题;

get(url: string, options?: RequestOptionsArgs): Observable<Response> {
    this._log.debug('SecureHttpService#get: ' + url);

    let resultObservable = Observable.create((observer) => {
      this._log.debug('resultObservable');
      this.tryReActivateToken().then(
        (result) => {
          this._log.debug('resultObservable#then#result: ' + result);
          if (result === true) {
            let headers = new Headers();
            headers.append('Authorization', 'Bearer ' + this.access_token);
            headers.append('X-Requested-With', 'XMLHttpRequest');
            // headers.append('Accept', 'json');

            this._log.debug(this.access_token);
            let superGetObs = super.get(url, { headers: headers, withCredentials: true });

            superGetObs.subscribe(
              (next) => { observer.onNext(next); },
              (error) => { observer.error(error); },
              () => { observer.onCompleted(); }
            );
          } else {
            observer.onError(new Error('Could not log you in automatically'));
          }
        }, (error) => { this._log.debug('resultObservable#then#error: ' + error); observer.onError(error); });
    });

    return resultObservable;
  }

angular2 Observarble onError不是一个函数

2 个答案: