Http上传文件

 public class UpLoadFile
    {
        public static void UpLoadFiles(string fileName)
        {
            string fileType = Path.GetExtension(fileName);
            string upLoadParms = "?Service=notify" + "&fileType=" + fileType;
            WebRequest webRequest = HttpWebRequest.Create(new Uri("http://192.168.0.1:8080" + upLoadParms));
            System.Text.Encoding coding = System.Text.Encoding.UTF8;
            webRequest.ContentType = "application/x-www-form-urlencoded";
            webRequest.Method = "POST";
            System.IO.Stream requeStream = webRequest.GetRequestStream();
            FileStream fileStream=new FileStream(fileName,FileMode.Open,FileAccess.Read);
            BinaryReader binaryReader=new BinaryReader(fileStream,coding);
            byte[] buffer = binaryReader.ReadBytes((int) fileStream.Length);
            requeStream.Write(buffer,0,buffer.Length);
            fileStream.Close();
            requeStream.Close();
            System.Net.WebResponse response = webRequest.GetResponse();
            Stream responseStream = response.GetResponseStream();
            StreamReader streamReader = new StreamReader(responseStream);
            string returnVal = streamReader.ReadToEnd();
            responseStream.Close();
            response.Close();
            
        }
    }