/// <summary>/// 單個文件保存從對方服務器到自己網站/// </summary>/// <param name="aUrl"></param>/// <param name="aPath"></param>/// <returns></returns>[HttpGet]public string FileSave(string aUrl,string aPath) {HttpWebRequest request = (HttpWebRequest)WebRequest.Create(aUrl);request.Method = "GET";using (HttpWebResponse response = request.GetResponse() as HttpWebResponse){if (response.StatusCode == HttpStatusCode.OK){Stream rs = response.GetResponseStream();//網絡流轉換為內存流var ms = StreamToMemoryStream(rs);ms.Seek(0, SeekOrigin.Begin); int buffsize = (int)ms.Length;byte[] bytes = new byte[buffsize];ms.Read(bytes, 0, buffsize);string bPath = Server.MapPath(@"~/Upload/") + aPath; //winform可寫物理磁盤路徑d:/123.rarstring bPathS = System.IO.Path.GetDirectoryName(bPath);if (!Directory.Exists(bPathS))Directory.CreateDirectory(bPathS);FileStream fs = new FileStream(bPath, FileMode.Create, FileAccess.Write);fs.Write(bytes, 0, bytes.Length);fs.Flush();fs.Close();ms.Flush(); ms.Close();rs.Flush(); rs.Close();//以文件流的方式下載}}return "ok";}/// <summary>/// 單個文件保存從對方服務器到自己網站/// </summary>/// <param name="aUrl">對方服務器請求路徑</param>/// <param name="aPath">本網站存儲路徑</param>/// <returns></returns>[HttpGet]public string FileSave(string aUrl, string aPath){System.GC.Collect();System.Net.ServicePointManager.DefaultConnectionLimit = 512;HttpWebRequest request = null;try{request = (HttpWebRequest)WebRequest.Create(aUrl);request.Method = "GET";request.KeepAlive = false;request.Proxy = WebRequest.DefaultWebProxy;using (HttpWebResponse response = request.GetResponse() as HttpWebResponse){if (response.StatusCode == HttpStatusCode.OK && response.ContentLength > 1000){Stream rs = response.GetResponseStream();//網絡流轉換為內存流var ms = StreamToMemoryStream(rs);ms.Seek(0, SeekOrigin.Begin);int buffsize = (int)ms.Length;byte[] bytes = new byte[buffsize];ms.Read(bytes, 0, buffsize);string bPath = Server.MapPath(@"~") + aPath;string bPathS = System.IO.Path.GetDirectoryName(bPath);if (!Directory.Exists(bPathS))Directory.CreateDirectory(bPathS);FileStream fs = new FileStream(bPath, FileMode.Create, FileAccess.Write);fs.Write(bytes, 0, bytes.Length);fs.Flush();fs.Close();ms.Flush(); ms.Close();rs.Flush(); rs.Close();//以文件流的方式下載}else{return "fail";}}return "ok";}catch (Exception e){return "error";}finally{if (request != null)request.Abort();//關閉連接}}private static MemoryStream StreamToMemoryStream(Stream instream){MemoryStream outstream = new MemoryStream();const int bufferLen = 4096;byte[] buffer = new byte[bufferLen];int count = 0;while ((count = instream.Read(buffer, 0, bufferLen)) > 0){outstream.Write(buffer, 0, count);}return outstream;}

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