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/";
 3string serverPath = Server.MapPath(path);
 4 5//创建临时文件夹 6string tempName = DateTime.Now.ToString("yyyyMMddHHMMss");
 7string tempFolder = Path.Combine(serverPath, tempName);
 8            Directory.CreateDirectory(tempFolder);
 910             DirectoryInfo folder = new DirectoryInfo(serverPath);
11foreach (FileInfo file in folder.GetFiles())
12            {
13string 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        {
 9string the_rar;
10            RegistryKey the_Reg;
11            Object the_Obj;
12string the_Info;
13            ProcessStartInfo the_StartInfo;
14            Process the_Process;
15try16            {
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            }
35catch (Exception)
36            {
37throw;
38            }
39         }    

             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();
17string 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);
 8try 9            {
10foreach (FileInfo file in directory.GetFiles())
11                {
12if (file.Attributes.ToString().IndexOf("ReadOnly") != -1)
13                    {
14                         file.Attributes = FileAttributes.Normal;
15                    }
16                    File.Delete(file.FullName);
17                }
18            }
19catch (Exception)
20            {
21throw;
22            }
23         }