Question

我将角度库升级到4.3.6，将tslint升级到5.7.0，在构建角度应用程序时出现以下错误。

我在下面的代码中没有使用RequestOptionsArgs，但我收到以下错误

错误

Type 'Headers' has no properties in common with type 'RequestOptionsArgs'.

我的角度服务代码如下

import { Injectable } from '@angular/core';
import {Summary} from './summary';
import {Http, Headers, Response} from '@angular/http';
import { Observable } from 'rxjs/Observable';
import {SelectItem} from "primeng/primeng";
import {ExceptionHandle} from "../util/exceptionhandle";
import {MYCONST} from "../util/constants";

@Injectable()
export class MyService {

  private myUrl= MYCONST.reconURL.url;
  private headers: Headers = new Headers({"Content-Type'" : 'application/json',
                            'Accept': 'application/json',
                            'Access-Control-Allow-Origin':'*',
                            'Access-Control-Allow-Credentials':'true'
  });

  getSummaries(): Observable<Summary[]> {
    return this.http.get(this.reconUrl + '/summaries', this.headers)
      .map((response: Response) => <Summary[]> response.json())
      .catch(this.handleError);
  }

  private handleError(error: any): Promise<any> {
    return ExceptionHandle.handleError(error);
  }

}

Answer 1

您在错误的位置传递了headers参数。您应该在http.get方法

中将headers作为RequestOptionsArgs对象的属性传递

return this.http.get(this.reconUrl + '/summaries', { headers: this.headers })

'Headers'没有与'RequestOptionsArgs'类型相同的属性

1 个答案: