发送方
 product.Method = "POST";
                    byte[] postProductData = System.Text.Encoding.UTF8.GetBytes(sendProductData);
                    product.ContentLength = postProductData.Length;
                    Stream writeStream = product.GetRequestStream();
                    writeStream.Write(postProductData, 0, postProductData.Length);
                    writeStream.Close();
接收方
 HttpWebResponse productResponse = (HttpWebResponse)product.GetResponse();
                    StreamReader sr = new StreamReader(productResponse.GetResponseStream(), Encoding.UTF8); 
                    outputString = sr.ReadToEnd();
                    sr.Close();
这样的发送方和接收方在碰到中文会出现乱码吗