上传图片到第三方服务器

/// <summary> ???/// 上传图片到第三方服务器 ???/// </summary> ???/// <param name="filePath"></param> ???/// <param name="picNo"></param> ???/// <returns></returns> ???public string UploadFilesToBlueBox(string filePath, string picNo) ???{ ???????string strReturn = ""; ???????string fileName = Path.GetFileName(filePath); ???????string strPostUrl = "http://pic.xxx.com/HttpPost_Upload.aspx?PICID=" + picNo + "&FILENAME=" + fileName; ???????HttpWebRequest reqPost = (HttpWebRequest)WebRequest.Create(strPostUrl); ???????reqPost.Method = "POST"; ???????reqPost.KeepAlive = false; ???????reqPost.ContentType = "application/x-www-form-urlencoded"; ???????byte[] fileStream = AuthGetFileData(filePath);//把文件转为bute[]，看之前的博客 ???????string strStream = Convert.ToBase64String(fileStream); ???????byte[] strFiledata = Encoding.UTF8.GetBytes(strStream); ???????reqPost.ContentLength = strFiledata.Length; ???????//post数据 ???????using (Stream newStream = reqPost.GetRequestStream()) ???????{ ???????????newStream.Write(strFiledata, 0, strFiledata.Length); ???????????//获取返回 ???????????HttpWebResponse myResponse = (HttpWebResponse)reqPost.GetResponse(); ???????????using (StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.UTF8)) ???????????{ ???????????????//返回结果 ???????????????strReturn = reader.ReadToEnd(); ???????????} ???????} ???????return strReturn; ???}