Angular 4如何读取标头中的令牌? [英] Angular 4 How to read the token in the header?

问题描述

我是新手.我无法读取REST服务响应标头中的令牌(jwt).如何阅读标题?这是我的代码:

I am new to angular. I can not read the token (jwt) in the REST service response header. How can I read headers? this is my code:

    loginUser(loginUser:Login,callback: (data) => void){ 

        let body = JSON.stringify(loginUser)
        const headerJson = {
          'Content-Type': 'application/json'    
        }
        let options = { headers: new HttpHeaders( headerJson ) };
        return this.http.post(this.config.datiBean.urlLoginToken, body,options).subscribe(

          res =>{

            console.log("body :"+JSON.stringify(res)); //ok

            callback(res);
          }

          /// at this point how can I read headers?

        )};
}

我想阅读以下信息:

感谢您的帮助

推荐答案

我的方法很可能不正确.我这样修改了我的方法:

Most likely my method was not correct. I modified my method this way:

    loginUser(loginUser:Login,callback: (data) => void){ 

       let creds = JSON.stringify(loginUser);
       let contentHeader = new HttpHeaders({ "Content-Type":"application/json" });
       this.http.post(this.config.datiBean.urlLoginToken, creds, { headers: contentHeader, observe: 'response' })
        .subscribe(
        (resp) => {
            console.log("TOKEN:  "+resp.headers.get('X-Auth'))
            console.log("body:  "+JSON.stringify(resp.body))
            callback(resp)
        },
        (resp) => {
            console.log("resp-error");
            console.log(resp);
        }
      );
  };

现在它可以正常工作了

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