asp.net批量下载服务器端指定目录文件

 1             //遍历服务器指定文件夹下的所有文件 2             string path = "uploads/Image/"; 3             string serverPath = Server.MapPath(path); 4  5             //创建临时文件夹 6             string tempName = DateTime.Now.ToString("yyyyMMddHHMMss"); 7             string tempFolder = Path.Combine(serverPath, tempName); 8             Directory.CreateDirectory(tempFolder); 9 10             DirectoryInfo folder = new DirectoryInfo(serverPath);11             foreach (FileInfo file in folder.GetFiles())12             {13                 string filename = file.Name;14                 File.Copy(serverPath + "/" + filename, tempFolder + "/" + filename);15             }16             //ZKHelper.JSHelper.Alert("图片拷贝成功!");17             //产生RAR文件，及文件输出18             RARSave(tempFolder, tempName);19             DownloadRAR(tempFolder + "//" + tempName + ".rar");

 1         /// <summary> 2         /// 生成RAR文件 3         /// </summary> 4         /// <param name="path">存放复制文件的目录</param> 5         /// <param name="rarPatch">RAR文件存放目录</param> 6         /// <param name="rarName">RAR文件名</param> 7         PRivate void RARSave(string rarPatch, string rarName) 8         { 9             string the_rar;10             RegistryKey the_Reg;11             Object the_Obj;12             string the_Info;13             ProcessStartInfo the_StartInfo;14             Process the_Process;15             try16             {17                 the_Reg = Registry.ClassesRoot.OpenSubKey(@"WinRAR");18                 the_Obj = the_Reg.GetValue("");19                 the_rar = the_Obj.ToString();20                 the_Reg.Close();21                 the_rar = the_rar.Substring(1, the_rar.Length - 7);22                 the_Info = " a " + rarName + " -r";23                 the_StartInfo = new ProcessStartInfo();24                 the_StartInfo.FileName = "WinRar";//the_rar;25                 the_StartInfo.Arguments = the_Info;26                 the_StartInfo.WindowStyle = ProcessWindowStyle.Hidden;27                 //打包文件存放目录28                 the_StartInfo.WorkingDirectory = rarPatch;29                 the_Process = new Process();30                 the_Process.StartInfo = the_StartInfo;31                 the_Process.Start();32                 the_Process.WaitForExit();33                 the_Process.Close();34             }35             catch (Exception)36             {37                 throw;38             }39         }    

下载生成的RAR文件

 1         /// <summary> 2         /// 下载生成的RAR文件 3         /// </summary> 4         private void DownloadRAR(string file) 5         { 6             FileInfo fileInfo = new FileInfo(file); 7             Response.Clear(); 8             Response.ClearContent(); 9             Response.ClearHeaders();10             Response.AddHeader("Content-Disposition", "attachment;filename=" + fileInfo.Name);11             Response.AddHeader("Content-Length", fileInfo.Length.ToString());12             Response.AddHeader("Content-Transfer-Encoding", "binary");13             Response.ContentType = "application/octet-stream";14             Response.ContentEncoding = System.Text.Encoding.GetEncoding("gb2312");15             Response.WriteFile(fileInfo.FullName);16             Response.Flush();17             string tempPath = file.Substring(0, file.LastIndexOf("//"));18             //删除临时目录下的所有文件19             DeleteFiles(tempPath);20             //删除空目录21             Directory.Delete(tempPath);22             Response.End();23         }    

 1          /// <summary> 2         /// 删除临时目录下的所有文件 3         /// </summary> 4         /// <param name="tempPath">临时目录路径</param> 5         private void DeleteFiles(string tempPath) 6         { 7             DirectoryInfo directory = new DirectoryInfo(tempPath); 8             try 9             {10                 foreach (FileInfo file in directory.GetFiles())11                 {12                     if (file.Attributes.ToString().IndexOf("ReadOnly") != -1)13                     {14                         file.Attributes = FileAttributes.Normal;15                     }16                     File.Delete(file.FullName);17                 }18             }19             catch (Exception)20             {21                 throw;22             }23         }