发送数据流方法/// <summary>/// PostBinaryData/// </summary>/// <param name="url">要发送的 url 网址</param>/// <param name="bytes">要发送的数据流</param>/// <returns></returns>public string PostBinaryData(string url, byte[] bytes){ ?//下面是测试例子 ?//string url = "http://www.test.com/test.ashx"; ?//string img = HttpContext.Current.Server.MapPath("../images/test.jpg"); ?//byte[] bytes = File.ReadAllBytes(img); ?HttpWebRequest wRequest = (HttpWebRequest)WebRequest.Create(url); ?wRequest.ContentType = "multipart/form-data"; ?wRequest.ContentLength = bytes.Length; ?wRequest.Method = "POST"; ?Stream stream = wRequest.GetRequestStream(); ?stream.Write(bytes, 0, bytes.Length); ?stream.Close(); ?HttpWebResponse wResponse = (HttpWebResponse)wRequest.GetResponse(); ?StreamReader sReader = new StreamReader(wResponse.GetResponseStream(), System.Text.Encoding.UTF8); ?string str = sReader.ReadToEnd(); ?sReader.Close(); ?wResponse.Close(); ?return str;}public void GetBinaryData(){ ?string imgFile = DateTime.Now.ToString("yyyyMMddhhmmss") + ".jpg"; ?string filePath = HttpContext.Current.Server.MapPath(imgFile); ?//方法一 ?int lang = HttpContext.Current.Request.TotalBytes; ?byte[] bytes = HttpContext.Current.Request.BinaryRead(lang); ?string content = System.Text.Encoding.UTF8.GetString(bytes); ?FileStream fStream = new FileStream(filePath, FileMode.Create, FileAccess.Write); ?BinaryWriter bw = new BinaryWriter(fStream); ?bw.Write(bytes); ?bw.Close(); ?fStream.Close(); ?????//方法二 ?Bitmap img = new Bitmap(HttpContext.Current.Request.InputStream); ?img.Save(filePath); ?HttpContext.Current.Response.Write("ok");}接收数据流方法
ashx图片上传接收
原文地址:https://www.cnblogs.com/XuPengLB/p/8459533.html