Angular 8 : Headers 未在 HttpCliet.post 中正确发送

Question

以下代码有效：

this.http.post (TGT_IP,body, {responseType: 'arraybuffer'}).subscribe(
      (val) => {
          console.log("POST call successful value returned in body", 
                      val);

      },
      response => {
          console.log("POST call in error", response);
      },
      () => {
          console.log("The POST observable is now completed.");
      });

然后我尝试了以下代码：

var body = [0x11,0x22,0x33,0x44];
this.http.post (TGT_IP,
                  body, 
                  { headers: new HttpHeaders({'Content-Type': 'octet/stream',
                                              'Accept': 'octet/stream'}),
                    responseType: 'arraybuffer'
                    }).subscribe(
        (val) => {
            console.log("POST call successful value returned in body", 
                        val);

        },
        response => {
            console.log("POST call in error", response);
        },
        () => {
            console.log("The POST observable is now completed.");
        });

你能告诉我为什么在这段代码中 body 根本没有发送吗？

谢谢，兹维卡

Answer 1

问题中的代码似乎是正确的。 Angularhttppostcan be tested here。示例can be investigated here.

的请求

根据以上示例，API 应该存在问题，它正在处理 POST 请求。

Angular 8 : Headers 未在 HttpCliet.post 中正确发送

Angular 8 : Headers are not properly sent in HttpCliet.post

httpclient

angular