写入流的字节超出指定的Content-Length字节大小

tlj893 2016-02-27 04:12:34

百度、Google了好多，依旧未能解决。
POST的函数如下

private void DeleteLesson(string kch)

        {

            string url = "省略网址";

            string postData = "kch=“ + kch + ”&kxh=1001&xh=&uid=41356032";

            byte[] byteResquest = Encoding.GetEncoding("gb2312").GetBytes(postData);

            HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(url);

            req.ContentLength = postData.Length;

            MessageBox.Show(postData.Length.ToString());     //下面有弹窗

            MessageBox.Show(byteResquest.Length.ToString());  //下面有弹窗

            req.CookieContainer = Whole.requestCookie;  //cookie

            req.ContentType = "application/x-www-form-urlencoded; charset=UTF-8";

            req.KeepAlive = true;

            req.Method = WebRequestMethods.Http.Post;



            Stream stream;

            stream = req.GetRequestStream();

            stream.Write(byteResquest, 0, byteResquest.Length);

            stream.Close();



            HttpWebResponse rep = (HttpWebResponse)req.GetResponse();

            string htmlCharset = "utf-8";

            Encoding htmlEncoding = Encoding.GetEncoding(htmlCharset);

            StreamReader sr = new StreamReader(rep.GetResponseStream(), htmlEncoding);

            string repHtml = sr.ReadToEnd();

     }

然后就出现了错误：
先是两个设定的弹窗

两个明明都是37，为什么还会提示“写入流的字节超出指定的Content-Length字节大小”？

下面是异常文本

有关调用实时(JIT)调试而不是此对话框的详细信息，

请参见此消息的结尾。



************** 异常文本 **************

System.Net.ProtocolViolationException: 写入流的字节超出指定的 Content-Length 字节大小。

   在 System.Net.ConnectStream.InternalWrite(Boolean async, Byte[] buffer, Int32 offset, Int32 size, AsyncCallback callback, Object state)

   在 System.Net.ConnectStream.Write(Byte[] buffer, Int32 offset, Int32 size)

   在 TGR.Choose.PostLesson(String id)

   在 TGR.Choose.DeleteLesson(String kch)

   在 TGR.Choose.LessonList_MouseDoubleClick(Object sender, MouseEventArgs e)

   在 System.Windows.Forms.ListBox.WndProc(Message& m)

   在 System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)





************** 已加载的程序集 **************

尝试过将GB2313换成UTF-8，但还是出错

...全文