如何实现文件打包成zip或rar(C#)？

Question

我从数据库中取得文件路径，循环将其打包压缩成zip或rar（多个文件），当压缩包不存在的时候新建压缩包，如果此压缩包已经存在则将要压缩的文件压缩进此压缩包，请问各位大虾，如何实现？注意是要将多个文件一个一个的压缩进一个压缩包中。

Answer 1

C# 文件压缩与解压(ZIP格式) 

Answer 2

调用rar的dos命令就好
详细用法在winRAR安装目录下面的Rar.txt中

Answer 3

你下一个ICSharpCode.SharpZipLib.dll这个是目前我用过最好用的.zip压缩与解压类

Answer 4

给你一个例子
/// <summary>目录strSrc到指定目录strDest
        /// 
        /// </summary>
        /// <param name="strSrc">导出的目录</param>
        /// <param name="strDest">指定的目录</param>
        public string Rar(string strSrc, string strDest)
        {
            Process p = new Process();
            string cmd = String.Format("a -en  -ep1 {0} {1} ", "\"" + strDest + "\"", "\"" + strSrc + "\"");
            string cmd1 = String.Format("a -en  -ap{0} -ep {1}", "新的文件", "\"" + strDest + "\"");
            try
            {
                for (int k = 0; k < 2; k++)
                {
                    p.StartInfo.FileName = Application.StartupPath + "\\Rar.exe";
                    if (k == 0)
                    {
                        p.StartInfo.Arguments = cmd;
                    }
                    else
                    {                        for (int i = 0; i < 3; i++)
                        {
                            if (TestG[i] != null)
                            {
                                if (TestG[i].Paper != null)
                                {
                                    cmd1 = cmd1 + " \"" + 文件 + "\"";
                                    for (int j = 0; j < Count; j++)
                                    {
                                        if (TestG[i].Paper.part(i) != null)
                                        { cmd1 = cmd1 + " \"" + 文件 + "\""; }
                                        }
                                    }
                                }
                            }
                        }                        p.StartInfo.Arguments = cmd1;
                    }
                    p.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
                    p.Start();
                    p.WaitForExit();
                    p.Close();                }
                if (Directory.Exists(Application.StartupPath + "\\Temp"))
                {
                    Directory.Delete(Application.StartupPath + "\\Temp", true);
                }
                return "压缩完成";
            }
            catch (Exception)
            {
                return "压缩失败";
            }需要windows里的RAR.exe文件 拷贝到工程中

Answer 5

   //压缩文件
    private void Export(string meetingTitle, ref ArrayList fileArray)
    {
        string pathRoot = Server.MapPath("/");
        string winRAR = pathRoot + "meeting/WinRAR/WinRAR.exe";
        string vfolder = "/upload/meeting/rar/";
        string rarfolder = Server.MapPath("~" + vfolder);        //添加文件
        StringBuilder file = new StringBuilder();
        for (int i = 0; i < fileArray.Count; i++)
        {
            file.Append("\"" + Tool.CStr(fileArray[i]) + "\" ");
        }        if (!Directory.Exists(rarfolder))
            Directory.CreateDirectory(rarfolder);        string makedFile = "\"" + rarfolder + meetingTitle + ".rar\"";        if (File.Exists(makedFile) == true)
        {
            try
            {
                File.Delete(makedFile);
            }
            catch
            {
                Tool.OpenWindow("文件无法删除，请先手动删除！");
            }
        }        string arguments = @"a " + makedFile + " " + file;        if (file.Length > 0)
        {
            try
            {
                ProcessStartInfo info = new ProcessStartInfo();
                info.FileName = winRAR;         //winRAR目录
                info.Arguments = arguments;     //参数
                info.WorkingDirectory = pathRoot;                Process p = new Process();
                p.StartInfo = info;
                p.Start();                      //启动
                p.WaitForExit();                //无限期等待进程退出
                p.Close();                //写入数据库
                string thisHost = Request.Url.ToString();
                thisHost = thisHost.Substring(thisHost.IndexOf("//") + 2);
                thisHost = thisHost.Substring(0, thisHost.IndexOf("/"));
                thisHost = "http://" + thisHost;
                BLL.Meeting.ExportRar er = new BLL.Meeting.ExportRar();
                er.Add(_meetingID, meetingTitle, (thisHost + vfolder + meetingTitle + ".rar"), Tool.Cint(Session["AdminID"]));
            }
            catch (Exception e)
            {
                Tool.OpenWindow("压缩失败！");
            }
            //删除生成的附件
            for (int i = 0; i < fileArray.Count; i++)
            {
                try
                {
                    File.Delete(Tool.CStr(fileArray[i]));
                }
                catch
                { }
            }
        }
        else
        {
            Tool.OpenWindow("没有需要压缩的文件！");
            return;
        }
    }