HttpURLConnection con;
URL url;
String httpUrl="http://192.168.0.105/TUISONG/Service.asmx";
InputStream in;
byte[] buf=new byte[1024];

try {
in=new FileInputStream(new File(Environment.getExternalStorageDirectory()+"/treemenu.jpg"));
url=new URL(httpUrl);
con=(HttpURLConnection)url.openConnection();
con.setConnectTimeout(20000);
con.setReadTimeout(12000);
  con.setRequestMethod("POST");
  con.setDoOutput(true);
  con.setDoInput(true);
    
  OutputStream osw = con.getOutputStream();
  while(in.read(buf)!=-1){
  osw.write(buf);
  }
osw.flush();
osw.close();
in.close();
  int code = con.getResponseCode();
  System.out.println("code:"+code);
    
} catch (Exception e) {
e.printStackTrace();
}

public void ProcessRequest(HttpContext context)
    {
        
        context.Response.ContentType = "text/plain";
        context.Response.Charset = "utf-8";

        string uploadPath = HttpContext.Current.Server.MapPath(WebCommon.GetClientImagePath());
        if (!System.IO.Directory.Exists(uploadPath))
        {
            System.IO.Directory.CreateDirectory(uploadPath);
        }

        
        System.IO.Stream stream = context.Request.InputStream;//这是你获得的流 

        byte[] buffer = new byte[stream.Length];
        stream.Read(buffer, 0, buffer.Length);     //将流的内容读到缓冲区 

        System.IO.FileStream fs = new System.IO.FileStream(uploadPath + "test.jpg", System.IO.FileMode.OpenOrCreate, System.IO.FileAccess.Write);
        fs.Write(buffer, 0, buffer.Length);
        fs.Flush();
        fs.Close();
  
    }
 
    public bool IsReusable {
        get {
            return false;
        }
    }