利用ICSharpCode压缩打包文件

因为项目需要打包文件,就在同事的建议下用ICSharpCode写了个打包函数.ICSharpCode的介绍就不说了.具体请到官方网站 http://www.icsharpcode.net/ 上了解.

 

首先引用ICSharpCode.SharpZipLib.dll,没有在这里下载:http://files.cnblogs.com/KenBlove/ICSharpCode.SharpZipLib.rar

 

代码实现多文件,自定义文件,整目录打包等功能.好了..奉上代码:

 

 

压缩打包代码     /// <summary>     /// Zips the specified zip path.     /// </summary>     /// <param name="strZipPath">The zip path.</param>     /// <param name="strZipTopDirectoryPath">The zip top directory path.</param>     /// <param name="intZipLevel">The zip level.</param>     /// <param name="strPassword">The password.</param>     /// <param name="filesOrDirectoriesPaths">The files or directories paths.</param>     /// <returns></returns>    private bool Zip(string strZipPath, string strZipTopDirectoryPath, int intZipLevel, string strPassword, string[] filesOrDirectoriesPaths)     {         try         {             List<string> AllFilesPath = new List<string>();             if (filesOrDirectoriesPaths.Length > 0) // get all files path            {                 for (int i = 0; i < filesOrDirectoriesPaths.Length; i++)                 {                     if (File.Exists(filesOrDirectoriesPaths[i]))                     {                         AllFilesPath.Add(filesOrDirectoriesPaths[i]);                     }                     else if (Directory.Exists(filesOrDirectoriesPaths[i]))                     {                         GetDirectoryFiles(filesOrDirectoriesPaths[i], AllFilesPath);                     }                 }             }             if (AllFilesPath.Count > 0)             {                 ZipOutputStream zipOutputStream = new ZipOutputStream(File.Create(strZipPath));                 zipOutputStream.SetLevel(intZipLevel);                 zipOutputStream.Password = strPassword;                 for (int i = 0; i < AllFilesPath.Count; i++)                 {                     string strFile = AllFilesPath[i].ToString();                     try                     {                         if (strFile.Substring(strFile.Length - 1) == "\\") //folder                        {                             string strFileName = strFile.Replace(strZipTopDirectoryPath, "");                             if (strFileName.StartsWith("\\"))                             {                                 strFileName = strFileName.Substring(1);                             }                             ZipEntry entry = new ZipEntry(strFileName);                             entry.DateTime = DateTime.Now;                             zipOutputStream.PutNextEntry(entry);                         }                         else //file                        {                             FileStream fs = File.OpenRead(strFile);                             byte[] buffer = new byte[fs.Length];                             fs.Read(buffer, 0, buffer.Length);                             string strFileName = strFile.Replace(strZipTopDirectoryPath, "");                             if (strFileName.StartsWith("\\"))                             {                                 strFileName = strFileName.Substring(1);                             }                             ZipEntry entry = new ZipEntry(strFileName);                             entry.DateTime = DateTime.Now;                             zipOutputStream.PutNextEntry(entry);                             zipOutputStream.Write(buffer, 0, buffer.Length);                             fs.Close();                             fs.Dispose();                         }                     }                     catch                     {                         continue;                     }                 }                 zipOutputStream.Finish();                 zipOutputStream.Close();                 return true;             }             else             {                 return false;             }         }         catch         {             return false;         }     }     /// <summary>     /// Gets the directory files.     /// </summary>     /// <param name="strParentDirectoryPath">The parent directory path.</param>     /// <param name="AllFilesPath">All files path.</param>    private void GetDirectoryFiles(string strParentDirectoryPath, List<string> AllFilesPath)     {         string[] files = Directory.GetFiles(strParentDirectoryPath);         for (int i = 0; i < files.Length; i++)         {             AllFilesPath.Add(files[i]);         }         string[] directorys = Directory.GetDirectories(strParentDirectoryPath);         for (int i = 0; i < directorys.Length; i++)         {             GetDirectoryFiles(directorys[i], AllFilesPath);         }         if (files.Length == 0 && directorys.Length == 0) //empty folder        {             AllFilesPath.Add(strParentDirectoryPath);         }     }

 

调用也很简单:

 

 

Code         string strZipPath = @"C:\Documents and Settings\ken\Desktop\Task1\ZipTest.zip";         string strZipTopDirectoryPath = @"C:\Documents and Settings\ken\Desktop\Task1\";         int intZipLevel = 6;         string strPassword = "";         string[] filesOrDirectoriesPaths = new string[] { @"C:\Documents and Settings\ken\Desktop\Task1\zipdemo\11\",              @"C:\Documents and Settings\ken\Desktop\Task1\zipdemo\Bin\ICSharpCode.SharpZipLib.dll" };         Zip(strZipPath, strZipTopDirectoryPath, intZipLevel, strPassword, filesOrDirectoriesPaths);

 

就这样.如果需要尽管拿走.

(代码参考过网络上的资源,如有冒犯,莫怪莫怪~)

 

由于上边代码对于大文件是一次读入，所以遇到大文件的时候是占用资源比较紧张。所以改为分段读取，每次读取64K数据：

 

 

                             string  fileName  =  file.Replace(zipTopDirectory,  "" );                              if  (fileName.StartsWith( " \\ " ))                                 fileName  =  fileName.Substring( 1 );                             ZipEntry entry  =   new  ZipEntry(fileName);                             entry.DateTime  =  DateTime.Now;                             zipedStream.PutNextEntry(entry);                              for  ( long  j  =   0 ; j  <  fs.Length; j  +=   65536 )                             {                                  int  byteLength  =   65536 ;                                  if  ((fs.Length  -  j)  <   65536 )                                 {                                     byteLength  =  ( int )(fs.Length  -  j);                                 }                                  byte [] buffer  =   new   byte [byteLength];                                 fs.Read(buffer,  0 , byteLength);                                 zipedStream.Write(buffer,  0 , byteLength);                             }                             fs.Close();

 

 

 

转载于:https://www.cnblogs.com/KenBlove/archive/2008/08/18/1270407.html

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