利用WebClient上传参数及文件流到远程ashx服务

原文 利用WebClient上传参数及文件流到远程ashx服务

1 思路：

WebClient.UploadFile()方法可以上传文件；UploadData()方法可以上传数据参数；如何合二为一既上传文件又上传参数呢？可将文件也当做参数，调用UploadData()方法

2  客户端

 FileStream fs = new FileStream(“需上传文文件路径”, FileMode.Open, FileAccess.Read);

             byte[] byteFile = new byte[fs.Length];

             fs.Read(byteFile, , Convert.ToInt32(fs.Length));

             fs.Close();

             string postData = "param1=pwd&FileName=file1.xml&UploadFile=" + HttpUtility.UrlEncode(Convert.ToBase64String(byteFile));

             var webclient = new WebClient();

             webclient.Headers.Add("Content-Type", "application/x-www-form-urlencoded");

             byte[] byteArray = Encoding.UTF8.GetBytes(postData);

             byte[] buffer = webclient.UploadData(“远程ashx URL”, "POST", byteArray);

             var msg = Encoding.UTF8.GetString(buffer);

3   服务端

 string param1= context.Request["param1"].ToString();
   FileStream fs = new FileStream(“需要保存文件的路径”, FileMode.Create, FileAccess.Write);
         fs.Write(Convert.FromBase64String(context.Request["UploadFile"].ToString()), , Convert.FromBase64String(context.Request["UploadFile"].ToString()).Length);
         fs.Flush();
         fs.Close();