文件解压缩公用类

using System;
using System.Collections.Generic;
using
System.Text;
using System;
using System.Collections.Generic;
using
System.Diagnostics;
using System.Configuration;
using System.IO;
using
System.IO.Compression;
using ICSharpCode.SharpZipLib.Zip;
using
Microsoft.Win32;

namespace
RST_ReadSDData.APP_Code
{
   public class
UnPackFile
    {
       
public UnPackFile()
       
{
           
//
            //TODO:
在此处添加构造函数逻辑
           
//
       
}

        #region  解压文件
包括.rar 和zip

        ///
<summary>
       
///解压文件
        ///
</summary>
        /// <param
name="fileFromUnZip">解压前的文件路径（绝对路径）</param>
       
/// <param
name="fileToUnZip">解压后的文件目录（绝对路径）</param>
       
public static void UnpackFileRarOrZip(string fileFromUnZip, string
fileToUnZip)
       
{
           
//获取压缩类型
           
string unType = fileFromUnZip.Substring(fileFromUnZip.LastIndexOf(".") + 1,
3).ToLower();
           
switch
(unType)
           
{
               
case
"rar":
                   
UnRar(fileFromUnZip,
fileToUnZip);
                   
break;
               
case
"zip":
                   
UnZip(fileFromUnZip,
fileToUnZip);
                   
break;
           
}
       
}

       
#endregion

       
#region  解压文件 .rar文件

        ///
<summary>
        ///
解压
        ///
</summary>
        /// <param
name="unRarPatch"></param>
       
/// <param
name="rarPatch"></param>
       
/// <param
name="rarName"></param>
       
///
<returns></returns>
       
public static void UnRar(string fileFromUnZip, string
fileToUnZip)
       
{
            string
the_rar;
           
RegistryKey
the_Reg;
           
object
the_Obj;
           
string
the_Info;

           
try
           
{
               
the_Reg =
Registry.LocalMachine.OpenSubKey(
                        
@"SOFTWARE\Microsoft\Windows\CurrentVersion\App
Paths\WinRAR.exe");
               
the_Obj =
the_Reg.GetValue("");
               
the_rar =
the_Obj.ToString();
               
the_Reg.Close();
               
//the_rar = the_rar.Substring(1, the_rar.Length -
7);

               
if (Directory.Exists(fileToUnZip) ==
false)
               
{
                   
Directory.CreateDirectory(fileToUnZip);
               
}
               
the_Info = "x " + Path.GetFileName(fileFromUnZip) + " " + fileToUnZip + "
-y";

               
ProcessStartInfo the_StartInfo = new
ProcessStartInfo();
               
the_StartInfo.FileName =
the_rar;
               
the_StartInfo.Arguments =
the_Info;
               
the_StartInfo.WindowStyle =
ProcessWindowStyle.Hidden;
               
the_StartInfo.WorkingDirectory =
Path.GetDirectoryName(fileFromUnZip);//获取压缩包路径

               
Process the_Process = new
Process();
               
the_Process.StartInfo =
the_StartInfo;
               
the_Process.Start();
               
the_Process.WaitForExit();
               
the_Process.Close();
           
}
            catch
(Exception
ex)
           
{
               
throw ex;
           
}
            //return
unRarPatch;
       
}

       
#endregion

       
#region  解压文件 .zip文件

        ///
<summary>
        ///
解压功能(解压压缩文件到指定目录)
        ///
</summary>
        /// <param
name="FileToUpZip">待解压的文件</param>
       
/// <param
name="ZipedFolder">指定解压目标目录</param>
       
public static void UnZip(string FileToUpZip, string
ZipedFolder)
       
{
            if
(!File.Exists(FileToUpZip))
           
{
               
return;
           
}

            if
(!Directory.Exists(ZipedFolder))
           
{
               
Directory.CreateDirectory(ZipedFolder);
           
}

           
ZipInputStream s =
null;
           
ZipEntry theEntry =
null;

           
string
fileName;
           
FileStream streamWriter =
null;
           
try
           
{
               
s = new
ZipInputStream(File.OpenRead(FileToUpZip));
               
while ((theEntry = s.GetNextEntry()) !=
null)
               
{

                   
if (theEntry.Name !=
String.Empty)
                   
{
                       
fileName = Path.Combine(ZipedFolder,
theEntry.Name);
                       
///判断文件路径是否是文件夹

                       
if (fileName.EndsWith("/") ||
fileName.EndsWith("\\"))
                       
{
                           
Directory.CreateDirectory(fileName);
                           
continue;
                       
}

                       
streamWriter =
File.Create(fileName);
                       
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;
                           
}
                       
}
                   
}
               
}
           
}
           
finally
           
{
               
if (streamWriter !=
null)
               
{
                   
streamWriter.Close();
                   
streamWriter =
null;
               
}
               
if (theEntry !=
null)
               
{
                   
theEntry =
null;
               
}
               
if (s !=
null)
               
{
                   
s.Close();
                   
s =
null;
               
}
               
GC.Collect();
               
GC.Collect(1);
           
}
       
}

       
#endregion
    }
}