对文件压缩解压操作

using System;

using Microsoft.Win32;

using System.Windows.Forms;

using System.Resources;

using System.Reflection;

using System.Diagnostics;

using System.IO;

using System.Threading;

namespace LocServices.Helper

{

/// <summary>

/// Summary description for CompressionUtility.

/// </summary>

public class CompressionUtility

{

private const string WINZIP_LOCATION = @"SOFTWARE/Microsoft/Windows/CurrentVersion/App Paths/winzip32.exe" ;

private const string WZZIP_LOCATION = @"SOFTWARE/Microsoft/Windows/CurrentVersion/App Paths/wzzip.exe" ;

private const string WZUNZIP_LOCATION = @"SOFTWARE/Microsoft/Windows/CurrentVersion/App Paths/wzunzip.exe" ;

private const string WINZIP_LOCATION_64 = @"SOFTWARE/Wow6432Node/Microsoft/Windows/CurrentVersion/App Paths/winzip32.exe";

private const string WZZIP_LOCATION_64 = @"SOFTWARE/Wow6432Node/Microsoft/Windows/CurrentVersion/App Paths/wzzip.exe";

private const string WZUNZIP_LOCATION_64 = @"SOFTWARE/Wow6432Node/Microsoft/Windows/CurrentVersion/App Paths/wzunzip.exe";

private string winZipExe = string.Empty;

private string winUnZipExe = string.Empty;

private Process zipProcess;

public delegate void ProcessStartedDelegate(int processId);

public event ProcessStartedDelegate ProcessStarted;

/// <summary>

/// Initialize a new instance of the compression class

/// </summary>

public CompressionUtility()

{

//Check if winzip is installed

RegistryKey key = Registry.LocalMachine.OpenSubKey(WINZIP_LOCATION);

RegistryKey key64 = Registry.LocalMachine.OpenSubKey(WINZIP_LOCATION_64);

//if not found prompt for installation

if (key == null && key64 == null)

{

string winZipNotInstalledMessage = string.Format(

"WinZip not installed!" + Environment.NewLine + "Searched at {0} and {1}.",

WINZIP_LOCATION, WINZIP_LOCATION_64);

throw (new WinZipNotInstalledException(winZipNotInstalledMessage));

}

//key.Close();

//key64.Close();

// Check if the command line version of winzip is installed

RegistryKey wzZipKey = Registry.LocalMachine.OpenSubKey(WZZIP_LOCATION);

RegistryKey wzZipKey64 = Registry.LocalMachine.OpenSubKey(WZZIP_LOCATION_64);

RegistryKey wzUnZipKey = Registry.LocalMachine.OpenSubKey(WZUNZIP_LOCATION);

RegistryKey wzUnZipKey64 = Registry.LocalMachine.OpenSubKey(WZUNZIP_LOCATION_64);

// if not found prompt for installation

if (wzZipKey == null && wzZipKey64 == null)

{

string winZipNotInstalledMessage = string.Format(

"WinZip command line utility not installed!" + Environment.NewLine + "Searched at {0} and {1}.",

WZZIP_LOCATION, WZZIP_LOCATION_64);

throw (new WinZipNotInstalledException(winZipNotInstalledMessage));

}

// again if this is not there prompt for installation

if (wzUnZipKey == null && wzUnZipKey64 == null)

{

string winZipNotInstalledMessage = string.Format(

"WinZip command line utility not installed!" + Environment.NewLine + "Searched at {0} and {1}.",

WZUNZIP_LOCATION, WZUNZIP_LOCATION_64);

throw (new WinZipNotInstalledException(winZipNotInstalledMessage));

}

// find the exe path for the command line utilities

winZipExe = wzZipKey != null ? wzZipKey.GetValue(string.Empty).ToString() : wzZipKey64.GetValue(string.Empty).ToString();

winUnZipExe = wzUnZipKey != null ? wzUnZipKey.GetValue(string.Empty).ToString() : wzUnZipKey64.GetValue(string.Empty).ToString();

//wzZipKey.Close();

//wzZipKey64.Close();

//wzUnZipKey.Close();

//wzUnZipKey64.Close();

}

/// <summary>

/// Create a zip file of all the files in the passed folder

/// and name it foldername.zip

/// </summary>

/// <param name="folderName"></param>

public void ZipFile(string zipFileName, string folderName, out string[] stdOutput)

{

try

{

//if the zip file exists, delete it

if (File.Exists(zipFileName))

{

File.Delete(zipFileName);

}

//now create the zip file that contains all the files in the specified folder

zipProcess = new Process();

zipProcess.StartInfo.Arguments = "-rp /"" + zipFileName + "/" /"" + folderName + "/"";

zipProcess.StartInfo.FileName = winZipExe;

zipProcess.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;

zipProcess.StartInfo.RedirectStandardOutput = true;

zipProcess.StartInfo.UseShellExecute = false;

zipProcess.StartInfo.CreateNoWindow = true;

zipProcess.Start();

//pass the id of the process back to the callee

if(ProcessStarted != null)

{

ProcessStarted(zipProcess.Id);

}

string results = zipProcess.StandardOutput.ReadToEnd();

zipProcess.WaitForExit();

zipProcess.StandardOutput.Close();

if(zipProcess.ExitCode != 0)

{

throw(new Exception("Zip Creation Failed"));

}

results = results.Trim().Replace('/r', '/0');

stdOutput = results.Split('/n');

}

catch

{

throw;

}

}

/// <summary>

/// Unzip a zip file and put all the contents in the

/// specified folder

/// </summary>

/// <param name="folderName"></param>

public void UnZipFile(string zipFileName, string outFolderName, out string[] stdOutput)

{

//see if the zipFile exists

if(!File.Exists(zipFileName))

{

throw new FileNotFoundException("Zipfile not found!", zipFileName);

}

//check if the out directory exists, if not create it

if(!Directory.Exists(outFolderName))

{

Directory.CreateDirectory(outFolderName);

}

//now unzip the file to the directory

Process zipProcess = new Process();

zipProcess.StartInfo.Arguments = "-d -o -ybc /"" + zipFileName + "/" /"" + outFolderName + "/"";

zipProcess.StartInfo.FileName = winUnZipExe;

zipProcess.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;

zipProcess.StartInfo.RedirectStandardOutput = true;

zipProcess.StartInfo.UseShellExecute = false;

zipProcess.StartInfo.CreateNoWindow = true;

zipProcess.Start();

//pass the id of the process back to the callee

if (ProcessStarted != null)

{

ProcessStarted(zipProcess.Id);

}

string results = zipProcess.StandardOutput.ReadToEnd();

zipProcess.WaitForExit();

zipProcess.StandardOutput.Close();

if (zipProcess.ExitCode != 0)

{

throw(new Exception("Zip Creation Failed"));

}

results = results.Trim().Replace('/r', '/0');

stdOutput = results.Split('/n');

}

}

/// <summary>

/// Create a new exception class for winzip not installed

/// </summary>

public class WinZipNotInstalledException : ApplicationException

{

public WinZipNotInstalledException(string message)

: base(message)

{

}

public WinZipNotInstalledException(string message, Exception inner)

: base(message, inner)

{

}

}

}