如何使用 HttpWebRequest.Accept

本文关键字：Accept HttpWebRequest 何使用 | 更新日期: 2023-09-27 18:36:04

这是我用于删除实体的代码，

private void Button_Click_1(object sender, RoutedEventArgs e)
{
var request = HttpWebRequest.Create(uri) as HttpWebRequest;
request.Accept = "application/json;odata=verbose";
request.Method = "DELETE";
request.BeginGetResponse(new AsyncCallback(GotResponse), request);
}
private void GotResponse(IAsyncResult asynchronousResult)
{
    string data;
    HttpWebRequest myrequest = (HttpWebRequest)asynchronousResult.AsyncState;
    using (HttpWebResponse response = (HttpWebResponse)myrequest.EndGetResponse(asynchronousResult))
        {
            System.IO.Stream responseStream = response.GetResponseStream();
            using (var reader = new System.IO.StreamReader(responseStream))
            {
                data = reader.ReadToEnd();
            }
            responseStream.Close();
        }
        this.Dispatcher.BeginInvoke(() =>
        {
            MessageBox.Show(data);
        });
}

使用上述应用程序时，应用程序在执行该行时崩溃 

using (HttpWebResponse response = (HttpWebResponse)myrequest.EndGetResponse(asynchronousResult))

发送崩溃消息，如果进行了适当的异常处理，则可以安全地运行。但是当我删除该行时 

request.Accept = "application/json;odata=verbose";

一切都很好。

谁能解释一下为什么会这样？

附加信息 ：成功删除时我的服务器响应是，

{
 "code":0,
 "message":"Successfully Deleted"
}

如何使用 HttpWebRequest.Accept

详细JSON被认为是一种传统格式，只需尝试更改：

request.Accept = "application/json;odata=verbose";

自 

request.Accept = "application/json";
request.ContentType = "application/json";
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