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名师互学网 > IT > 软件开发 > 后端开发 > C/C++/C# > C#教程

Windows系统中C#调用WinRAR来压缩和解压缩文件的方法

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Windows系统中C#调用WinRAR来压缩和解压缩文件的方法

过程说明都在注释里,我们直接来看代码:
压缩:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.IO;

using ICSharpCode.SharpZipLib.Zip;

using System.Diagnostics;

public class winrar

{
  #region 压缩文件

  /// 

  /// 压缩文件

  /// 

  /// 压缩文件及完整路径(D:abc)

  /// 压缩包所存完整路径(D:a.zip或d:a.rar)

  public static void CreateZipFile(string filesPath, string zipFilePath)

  {

    if (!Directory.Exists(filesPath))

    {

      Console.WriteLine("Cannot find directory '{0}'", filesPath);

      return;

    }

    try

    {

      string[] filenames = Directory.GetFiles(filesPath);

      using (ZipOutputStream s = new ZipOutputStream(File.Create(zipFilePath)))

      {

 s.SetLevel(9); // 压缩级别 0-9

 //s.Password = "123"; //Zip压缩文件密码

 byte[] buffer = new byte[4096]; //缓冲区大小

 foreach (string file in filenames)

 {

   ZipEntry entry = new ZipEntry(Path.GetFileName(file));

   entry.DateTime = DateTime.Now;

   s.PutNextEntry(entry);

   using (FileStream fs = File.OpenRead(file))

   {

     int sourceBytes;

     do

     {

sourceBytes = fs.Read(buffer, 0, buffer.Length);

s.Write(buffer, 0, sourceBytes);

     } while (sourceBytes > 0);

   }

 }

 s.Finish();

 s.Close();

      }

    }

    catch (Exception ex)

    {

      AutoCompare.ErrorLog.SaveError(ex, "压缩文件出错!");

    }

  }

  #endregion

  #region 解压文件

  /// 

  /// 解压文件

  /// 

  /// 解压文件及完整路径(d:a.zip或d:a.rar)

  public static void UnZipFile(string zipFilePath)

  {

    if (!File.Exists(zipFilePath))

    {

      Console.WriteLine("Cannot find file '{0}'", zipFilePath);

      return;

    }

    using (ZipInputStream s = new ZipInputStream(File.OpenRead(zipFilePath)))

    {

      ZipEntry theEntry;

      while ((theEntry = s.GetNextEntry()) != null)

      {

 Console.WriteLine(theEntry.Name);

 string directoryName = Path.GetDirectoryName(theEntry.Name);

 string fileName = Path.GetFileName(theEntry.Name);

 // create directory

 if (directoryName.Length > 0)

 {

   Directory.CreateDirectory(directoryName);

 }

 if (fileName != String.Empty)

 {

   using (FileStream streamWriter = File.Create(theEntry.Name))

   {

     int size = 2048;

     byte[] data = new byte[2048];

     while (true)

     {

size = s.Read(data, 0, data.Length);

if (size > 0)

{

  streamWriter.Write(data, 0, size);

}

else

{

  break;

}

     }

   }

 }

      }

    }

  }

  #endregion


   string rarFile=@"C:Program FilesWinRARWinRAR.exe";//winrar之所在的路径,这里找执行文件所在文件夹和"C:Program FilesWinRARWinRAR.exe

 #region RAR压缩文件(支持路径中含有空格)

 /// 

  /// 压缩到.rar

  /// 

  /// 输入目录

  /// 输出目录

  /// 输出文件名

 

  public static void CompressRar(string intputPath, string outputPath, string outputFileName)

  {

    //rar 执行时的命令、参数

    string rarCmd;

    //启动进程的参数

    ProcessStartInfo processStartInfo;

    //进程对象

    Process process;

 //命令参数

 rarCmd = " a " + outputFileName + " " + intputPath + " -r -ep1";

 //rar路径

 string rarFile = System.Windows.Forms.Application.StartupPath + @"rar.exe";

 if (outputPath.IndexOf(' ') > 0 || intputPath.IndexOf(' ') > 0)

 {

  rarCmd = " a " + outputFileName + " "" + intputPath + "" -r -ep1";

 }

 if (!File.Exists(System.Windows.Forms.Application.StartupPath + @"rar.exe"))

 { 

  rarFile=@"C:Program FilesWinRARWinRAR.exe";

 }

    try

    {

      

      //判断输入目录是否存在

      if (!Directory.Exists(intputPath))

      {

 throw new ArgumentException("CompressRar'arge : inputPath isn't exsit.");

      }

      

      //创建启动进程的参数

      processStartInfo = new ProcessStartInfo();

      //指定启动文件名

      processStartInfo.FileName = @"C:Program FilesWinRARWinRAR.exe";

      //指定启动该文件时的命令、参数

      processStartInfo.Arguments = rarCmd;

      //指定启动窗口模式:隐藏

      processStartInfo.WindowStyle = ProcessWindowStyle.Hidden;

      //指定压缩后到达路径

      processStartInfo.WorkingDirectory = outputPath;

      //创建进程对象

      process = new Process();

      //指定进程对象启动信息对象

      process.StartInfo = processStartInfo;

      //启动进程

      process.Start();

      //指定进程自行退行为止

      process.WaitForExit();

    }

    catch (Exception ex)

    {

      throw ex;

    }

  }

 #endregion

 #region RAR解压文件(支持路径中含有空格)

 /// 

 /// 解压文件

 /// 

 /// 解压到的路径

 /// 压缩包所在路径(解压路径需存在)

 /// 压缩包名

 /// 

 

 public static void DecompressRar(string outputPath, string inputPath, string inputFileName)

 {

 //rar 执行时的命令、参数

 string rarCmd;

 //启动进程的参数

 ProcessStartInfo processStartInfo;

 //进程对象

 Process process;

 //rar路径

 string rarFile =System.Windows.Forms.Application.StartupPath + @"rar.exe" ;

 //命令参数

 rarCmd = " e " + inputFileName + " " + outputPath + " -r -ep1";

 if (outputPath.IndexOf(' ') > 0 || inputPath.IndexOf(' ') > 0)

 {

  rarCmd = "x -inul -y -o+ -ep1 "" + inputPath + "\" + inputFileName + "" "" + outputPath+""";

 }

 if (!File.Exists(System.Windows.Forms.Application.StartupPath + @"rar.exe"))

 { 

  rarFile=@"C:Program FilesWinRARWinRAR.exe";

 }

 try

 {

  //创建启动进程的参数

  processStartInfo = new ProcessStartInfo();

  //指定启动文件名

  processStartInfo.FileName = rarFile;

  //指定启动该文件时的命令、参数

  processStartInfo.Arguments = rarCmd;

  //指定启动窗口模式:隐藏

  processStartInfo.WindowStyle = ProcessWindowStyle.Hidden;

  //指定解压后到达路径(文件夹需要存在)

  processStartInfo.WorkingDirectory = inputPath;

  //创建进程对象

  process = new Process();

  //指定进程对象启动信息对象

  process.StartInfo = processStartInfo;

  //启动进程

  process.Start();

  //指定进程自行退行为止

  process.WaitForExit();

  //释放资源

  process.Close();

 }

 catch (Exception ex)

 {

  throw ex;

 }

 }

 #endregion

}

解压:

class UseWinRar 
  { 
    private string rarExeFile = null;//WinRar.exe路径 
    private bool useAble = false;//标志WinRar是否可用 
 
    public UseWinRar()//构造方法 
    { 
      rarExeFile = getRarExe(); 
      useAble = !string.IsNullOrEmpty(rarExeFile);//如果WinRar.exe路径不为空,说明可用 
    } 
 
    public static string getRarExe()//获取WinRar所在磁盘路径 
    { 
      string rarExe = null; 
      RegistryKey regKey = Registry.LocalMachine.OpenSubKey(@"SOFTWAREMicrosoftWindowsCurrentVersionApp PathsWinRAR.exe"); 
      if (regKey == null) 
      { 
 return null; 
      } 
      rarExe = regKey.GetValue("").ToString(); 
      regKey.Close();//关闭注册表 
      return rarExe; 
    } 
 
    public bool exeRarCmd(string cmd)//执行某个命令 
    { 
      if (!useAble) 
      { 
 return false; 
      } 
      Process process = new Process();//新建一个过程 
      ProcessStartInfo startInfo = new ProcessStartInfo(rarExeFile);//新建一个启动信息 
      startInfo.Arguments = cmd;//设置启动信息的执行参数 
      //startInfo.WorkingDirectory = workDirectory;//设置启动信息的工作目录 
      startInfo.WindowStyle = ProcessWindowStyle.Hidden;//设置程序后台运行 
      process.StartInfo = startInfo;//设置过程的启动信息 
      process.Start();//开始过程 
      return true; 
    } 
 
    public bool unZipAll(string zipFile, string targetDirectory)//将指定压缩文件解压到指定目录 
    { 
      if (! File.Exists(zipFile)) 
      { 
 return false; 
      } 
      string zipCmd = "x " + zipFile +" "+ targetDirectory + " -y -ibck";//后台解压压缩文件中全部文件到指定目录 
      exeRarCmd(zipCmd);//执行解压操作 
      return true; 
    } 
 
    public bool unZipToCurrentDirectory(string zipFile)//将压缩文件解压到当前目录 
    { 
      if (!File.Exists(zipFile)) 
      { 
 return false; 
      } 
      FileInfo fileInfo = new FileInfo(zipFile); 
      return unZipAll(zipFile, fileInfo.DirectoryName); 
    } 
  } 
  
Main:
public static void Main() 
    { 
      UseWinRar rar = new UseWinRar(); 
      string[] zipFiles = Directory.GetFiles(Environment.CurrentDirectory, "*.zip");//获取所有zip文件路径 
      foreach (string zipFile in zipFiles) 
      { 
 rar.unZipToCurrentDirectory(zipFile); 
      } 
    } 

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