Question

我想通过输入文本来更新服务URL中的2个参数，然后选择

网址：http://localhost/?population/?article=code&year=value

如何通过输入文本来设置代码和值并在Angular 5中选择值

谢谢

Answer 1

getPopByCY(code: string, value : string): Observable<Article[]> {
    //set request params
    let params: URLSearchParams = new URLSearchParams();
    params.set("article", code);
    params.set("year", value);
    //params.set("surname", surname); for more params
    this.options.search = params;  


    let url = "http://192.168.1.10:8080/RESTfulArticle/rest/article";
    console.log("url: ", url);

    return this.httpClient.get(url,this.options)
      .map((resp: Response) => resp.json() as Article[])
      .catch(this.handleError);
  }

  private handleError(err) {
    console.log(err);
    return Observable.throw(err || 'Server error');
  }



}


article.component.ts

GetPbyCodeandYears(code : string , value : string) {


  this.countriesService.getPopByCY(code,value).subscribe(users => {
      this.pops = users as Population[];
      console.log(users);

    });

我想将参数添加到此链接：http://192.168.1.10:8080/RESTfulArticle/rest/article?country=code&year=value

错误：属性“标题”的类型不兼容。类型'Headers'不能分配给类型'HttpHeaders | {[header：string]：字符串|串[]; }'。

通过输入文本更新2个url参数，然后选择

1 个答案: