C# Post上传文件 405 望高手解救
C# code// <summary> /// 将本地文件上传到指定的服务器(HttpWebRequest方法) /// </summary> /// <param name="address">文件上传到的服务器</param> /// <param name="fileNamePath">要上传的本地文件（全路径）</param> /// <param name="saveName">文件上传后的名称</param> /// <param name="progressBar">上传进度条</param> /// <returns>成功返回1，失败返回0</returns> private static String Upload_Request(string address, string fileNamePath, string saveName /*, ProgressBar progressBar**/) { // 要上传的文件 FileStream fs = new FileStream(fileNamePath, FileMode.Open, FileAccess.Read); BinaryReader r = new BinaryReader(fs); //时间戳 string strBoundary = "----------" + DateTime.Now.Ticks.ToString("x"); byte[] boundaryBytes = Encoding.ASCII.GetBytes("/r/n--" + strBoundary + "/r/n"); //请求头部信息 StringBuilder sb = new StringBuilder(); sb.Append("--"); sb.Append(strBoundary); sb.Append("/r/n"); sb.Append("Content-Disposition: form-data; name=\"file\";filename=\""+saveName+"\"/r/n"); sb.Append("Content-Type: application/octet-stream /r/n/r/n"); string strPostHeader = sb.ToString(); byte[] postHeaderBytes = Encoding.UTF8.GetBytes(strPostHeader); // 根据uri创建HttpWebRequest对象 HttpWebRequest httpReq = (HttpWebRequest)WebRequest.Create(new Uri(address)); httpReq.KeepAlive = true; httpReq.Method = Convert.ToString(Method.POST); //对发送的数据不使用缓存 httpReq.AllowWriteStreamBuffering = false; //设置获得响应的超时时间（300秒） httpReq.Timeout = 300000; httpReq.ContentType = "multipart/form-data: name=\"Upload\" boundary=" + strBoundary; long length = fs.Length + postHeaderBytes.Length + boundaryBytes.Length; long fileLength = fs.Length; httpReq.ContentLength = length; try { //progressBar.Maximum = int.MaxValue; //progressBar.Minimum = 0; //progressBar.Value = 0; //每次上传4k int bufferLength = 4096; byte[] buffer = new byte[bufferLength]; //已上传的字节数 long offset = 0; //开始上传时间 DateTime startTime = DateTime.Now; int size = r.Read(buffer, 0, bufferLength); Stream postStream = httpReq.GetRequestStream(); //发送请求头部消息 postStream.Write(postHeaderBytes, 0, postHeaderBytes.Length); while (size > 0) { postStream.Write(buffer, 0, size); offset += size; //progressBar.Value = (int)(offset * (int.MaxValue / length)); TimeSpan span = DateTime.Now - startTime; double second = span.TotalSeconds; //lblTime.Text = "已用时：" + second.ToString("F2") + "秒"; //if (second > 0.001) //{ // lblSpeed.Text = " 平均速度：" + (offset / 1024 / second).ToString("0.00") + "KB/秒"; //} //else //{ // lblSpeed.Text = " 正在连接…"; //} //lblState.Text = "已上传：" + (offset * 100.0 / length).ToString("F2") + "%"; //lblSize.Text = (offset / 1048576.0).ToString("F2") + "M/" + (fileLength / 1048576.0).ToString("F2") + "M"; Application.DoEvents(); size = r.Read(buffer, 0, bufferLength); } //添加尾部的时间戳 postStream.Write(boundaryBytes, 0, boundaryBytes.Length); postStream.Close(); //获取服务器端的响应 WebResponse webRespon = httpReq.GetResponse(); Stream s = webRespon.GetResponseStream(); StreamReader sr = new StreamReader(s); //读取服务器端返回的消息 String sReturnString = sr.ReadLine(); s.Close(); sr.Close(); return sReturnString; } catch(Exception e) { MessageBox.Show(e.Message); } finally { fs.Close(); r.Close(); } return ""; }