在服务器端在线解压.ZIP文件的小工具（源码打包）以后向服务器发布程序就快了。

    之前用过一个用PHP 写的一个可以在服务器端在线解压.ZIP文件的小工具（只有一个文件），但最近，公司项目是用.NET 开发的，服务器上不支持PHP ，所以就自己动手写了个。

解压的核心代码是从网上找的。不知道是哪位大侠写的。小的我就拿来用了。用了ICSharpCode.SharpZipLib.dll类库。

为了让文件的个数减少到最少，所有的后台代码都写到前台aspx页面中了。

 

 

<% @ Page Language = " C# "   %>
<% @ Import Namespace = " System.Collections.Generic "   %>
<% @ Import Namespace = " System.Web "   %>
<% @ Import Namespace = " System.Web.UI " %>
<% @ Import Namespace = " System.Web.UI.WebControls "   %>
<% @ Import Namespace = " System.IO "   %>
<% @ Import Namespace = " System.Threading " %>
<% @ Import Namespace = " ICSharpCode.SharpZipLib.Zip "   %>

<! DOCTYPE html PUBLIC  " -//W3C//DTD XHTML 1.0 Transitional//EN "   " http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd " >

< html xmlns = " http://www.w3.org/1999/xhtml " >
< head runat = " server " >
     < title ></ title >
     < script runat = " server "  type = " text/C# " >
         protected   void  Page_Load( object  sender, EventArgs e)
        {
             if  ( ! IsPostBack)
            {
                 string  f  =  Server.MapPath( " . " );
                 foreach  (FileInfo fi  in   new  System.IO.DirectoryInfo(f).GetFiles())
                {
                     if  (fi.Name.LastIndexOf( " .zip " )  >   0 )
                    {
                        ddlFileList.Items.Add( new  ListItem(fi.Name, fi.Name));
                    }
                }
                ddlFileList.Items.Insert( 0 ,  new  ListItem( " please select " ,  " -1 " ));

            }

        }

         public   void  btnDecompress_Click( object  s, EventArgs e)
        {
            
             string  zipFilePath  =  Server.MapPath( " ./ " )  +  ddlFileList.SelectedValue.Trim(); //
             if  (File.Exists(zipFilePath))
            {
                 string  TargetPath  =  txtTargetPath.Text.Trim();
                 if  (TargetPath.LastIndexOf( " \\ " )  <   0 )
                {
                    TargetPath  +=   " \\\\ " ;
                }
                 string  targetPath  =  Server.MapPath(TargetPath);
                FileCompression.Decompress(zipFilePath, targetPath);
                Response.Write( " 文件解压成功，请在 "   +  TargetPath  +   " 文件夹查看。 " );
            }
             else
            {
                Response.Write( " 压缩文件不存在，请先压缩文件。 " );
            }
        }

         public   class  FileCompression
        {
             ///   <summary>
             ///  构造函数
             ///   </summary>
             public  FileCompression()
            {
            }

             #region  加密、压缩文件

             ///   <summary>
             ///  压缩文件
             ///   </summary>
             ///   <param name="fileNames"> 要打包的文件列表 </param>
             ///   <param name="GzipFileName"> 目标文件名 </param>
             ///   <param name="CompressionLevel"> 压缩品质级别（0~9） </param>
             ///   <param name="SleepTimer"> 休眠时间（单位毫秒） </param>      
             public   static   void  Compress(List < FileInfo >  fileNames,  string  GzipFileName,  int  CompressionLevel,  int  SleepTimer)
            {
                ZipOutputStream s  =   new  ZipOutputStream(File.Create(GzipFileName));
                 try
                {
                    s.SetLevel(CompressionLevel);    // 0 - store only to 9 - means best compression

                     foreach  (FileInfo file  in  fileNames)
                    {
                        FileStream fs  =   null ;
                         try
                        {
                            fs  =  file.Open(FileMode.Open, FileAccess.ReadWrite);
                        }
                         catch
                        {  continue ; }

                         //   方法二，将文件分批读入缓冲区
                         byte [] data  =   new   byte [ 2048 ];
                         int  size  =   2048 ;
                        ZipEntry entry  =   new  ZipEntry(Path.GetFileName(file.Name));
                        entry.DateTime  =  (file.CreationTime  >  file.LastWriteTime  ?  file.LastWriteTime : file.CreationTime);

                        s.PutNextEntry(entry);

                         while  ( true )
                        {
                            size  =  fs.Read(data,  0 , size);
                             if  (size  <=   0 )  break ;

                            s.Write(data,  0 , size);
                        }

                        fs.Close();
                        file.Delete();

                        Thread.Sleep(SleepTimer);
                    }
                }
                 finally
                {
                    s.Finish();
                    s.Close();
                }
            }

             #endregion

             #region  解密、解压缩文件

             ///   <summary>
             ///  解压缩文件
             ///   </summary>
             ///   <param name="GzipFile"> 压缩包文件名 </param>
             ///   <param name="targetPath"> 解压缩目标路径 </param>        
             public   static   void  Decompress( string  GzipFile,  string  targetPath)
            {
                 // string directoryName = Path.GetDirectoryName(targetPath + "\\") + "\\";
                 string  directoryName  =  targetPath;
                 if  ( ! Directory.Exists(directoryName)) Directory.CreateDirectory(directoryName); // 生成解压目录
                 string  CurrentDirectory  =  directoryName;

                 byte [] data  =   new   byte [ 2048 ];
                 int  size  =   2048 ;

                ZipEntry theEntry  =   null ;
                 using  (ZipInputStream s  =   new  ZipInputStream(File.OpenRead(GzipFile)))
                {
                     while  ((theEntry  =  s.GetNextEntry())  !=   null )
                    {
                         if  (theEntry.IsDirectory)
                        { //  该结点是目录
                             if  ( ! Directory.Exists(CurrentDirectory  +  theEntry.Name)) Directory.CreateDirectory(CurrentDirectory  +  theEntry.Name);
                        }
                         else
                        {
                             if  (theEntry.Name  !=  String.Empty)
                            {
                                 // 解压文件到指定的目录
                                 using  (FileStream streamWriter  =  File.Create(CurrentDirectory  +  theEntry.Name))
                                {
                                     while  ( true )
                                    {
                                        size  =  s.Read(data,  0 , data.Length);
                                         if  (size  <=   0 )  break ;

                                        streamWriter.Write(data,  0 , size);
                                    }
                                    streamWriter.Close();
                                }
                            }
                        }
                    }
                    s.Close();
                }
            }

             #endregion

        }
            
        
    
     </ script >
    
    
    
</ head >
< body >
     < form id = " form1 "  runat = " server " >
     < div >
    选择文件 < asp:DropDownList ID = " ddlFileList "  runat = " server " ></ asp:DropDownList >< br  />
    目标文件夹： < asp:TextBox ID = " txtTargetPath "  runat = " server " ></ asp:TextBox >< br  />
    
         < asp:Button ID = " btnDecompress "  runat = " server "  
            Text = " 解压缩 "  onclick = " btnDecompress_Click "   />
    
     </ div >
     </ form >
</ body >
</ html >

 

 

然后上打包的程序

 /Files/chjf2008/unzip.zip

如何上传附件啊？