asp.net 打包ZIP下载文件

Question

这是我的一段下载文件的函数.
我现在想实现的是 点击下载某个文件的时候 不管它是不是rar或者zip文件 或者其他文件都先打包后下载到本地.#region 二进制下载
private void FN_ResponseFile()
{
string id = Request["id"].ToString();//获取资源的编号
System.IO.Stream iStream = null;
byte[] buffer = new Byte[10000];
int length;
long dataToRead;
NRBLL.File bf = new Asiastar.NRBLL.File();
Guid guid = new Guid(id);
if (bf.FN_SerchPathByFileId(guid).Tables[0].Rows[0]["FilePath"] != null)//判断数据库路径是否存在
{
string filepath = bf.FN_SerchPathByFileId(guid).Tables[0].Rows[0]["FilePath"].ToString();//获取资源完整路径
string filename = System.IO.Path.GetFileName(filepath);//获取资源名称 try
{
string fileName = HttpUtility.UrlEncode(System.Text.Encoding.UTF8.GetBytes(filename));//解码(注意这里2层解码)
filename = filename.Replace("+", "%20");  //将“+”替换成“空格”
iStream = new System.IO.FileStream(filepath, System.IO.FileMode.Open, System.IO.FileAccess.Read, System.IO.FileShare.Read);
dataToRead = iStream.Length;
Response.ContentType = "application/octet-stream";
Response.AddHeader("Content-Disposition", "attachment; filename=" + HttpUtility.UrlEncode(filename, System.Text.Encoding.UTF8));
while (dataToRead > 0)
{
if (Response.IsClientConnected)
{
length = iStream.Read(buffer, 0, 10000);
Response.OutputStream.Write(buffer, 0, length); Response.Flush();
buffer = new Byte[10000];
dataToRead = dataToRead - length;
}
else
{
dataToRead = -1;
}
}
}
catch (Exception)
{
Response.Write("找不到该文件!");
}
finally
{
if (iStream != null)
{
iStream.Close();
}
}
}
else
{
Response.Write("找不到该文件!");
}
}
#endregion如何嵌入到我的这段代码?

Answer 1

存下载文件的时候就给他打包了。
/// <summary>
        /// 压缩方法
        /// </summary>
        /// <param name="patch">预压缩的路径</param>
        /// <param name="rarPatch">压缩后的路径</param>
        /// <param name="rarName">压缩文件名</param>
        public static void RARsave(string patch, string rarPatch, string rarName)
        {
            String the_rar;
            RegistryKey the_Reg;
            Object the_Obj;
            String the_Info;
            ProcessStartInfo the_StartInfo;
            Process the_Process;
            try
            {
                the_Reg = Registry.ClassesRoot.OpenSubKey(@"Applications\\WinRAR.exe\\Shell\\Open\\Command");
                the_Obj = the_Reg.GetValue("");
                the_rar = the_Obj.ToString();
                the_Reg.Close();
                the_rar = the_rar.Substring(1, the_rar.Length - 7);
                Directory.CreateDirectory(patch);
                //命令参数                //the_Info = " a " + rarName + " " + @"C:Test?70821.txt"; //文件压缩                the_Info = " a " + rarName + " " + patch + " -r"; ;
                the_StartInfo = new ProcessStartInfo();
                the_StartInfo.FileName = the_rar;
                the_StartInfo.Arguments = the_Info;
                the_StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
                //打包文件存放目录                the_StartInfo.WorkingDirectory = rarPatch;
                the_Process = new Process();
                the_Process.StartInfo = the_StartInfo;
                the_Process.Start();
                the_Process.WaitForExit();
                the_Process.Close();
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }        /// <summary>
        ///解 压缩方法
        /// </summary>
        /// <param name="patch">预解压缩的路径</param>
        /// <param name="rarPatch">解压缩后的路径</param>       public static int unRAR(string unRarPatch, string rarPatch)
      {        try
        {
            System.Diagnostics.Process Process1 = new System.Diagnostics.Process();
            Process1.StartInfo.FileName = "Winrar.exe";
            Process1.StartInfo.CreateNoWindow = true;
            Process1.StartInfo.Arguments = " e " + unRarPatch + " " + rarPatch + " -y";
            Process1.Start();
            Process1.WaitForExit();
            if (Process1.HasExited)
            {
                return Process1.ExitCode;
            }
            return -1000;
        }
        catch (Exception ex)
        {
            return -1001;
        }
        }
参考