using ICSharpCode.SharpZipLib.Checksums;
using ICSharpCode.SharpZipLib.Zip;
using Microsoft.Win32;
/// <summary>
/// 文件压缩解压缩
///
/// 修改纪录
///
/// 2015-6-23版本：1.0 SongBiao 创建文件。
///
/// <author>
/// <name>SongBiao</name>
/// <date>2015-6-23</date>
/// </author>
/// </summary>
public class SharpZip
{
/// <summary>
/// 压缩
/// </summary>
/// <param name="filename"> 压缩后的文件名(包含物理路径)</param>
/// <param name="directory">待压缩的文件夹(包含物理路径)</param>
public static void PackFiles(string filename, string directory)
{
FastZip fz = new FastZip { CreateEmptyDirectories = true };
fz.CreateZip(filename, directory, true, "");
}
/// <summary>
/// 解压缩
/// </summary>
/// <param name="file">待解压文件名(包含物理路径)</param>
/// <param name="dir"> 解压到哪个目录中(包含物理路径)</param>
public static bool UnpackFiles(string file, string dir)
{
if (!Directory.Exists(dir))
{
Directory.CreateDirectory(dir);
}
ZipInputStream s = new ZipInputStream(File.OpenRead(file));
ZipEntry theEntry;
while ((theEntry = s.GetNextEntry()) != null)
{
string directoryName = Path.GetDirectoryName(theEntry.Name);
string fileName = Path.GetFileName(theEntry.Name);
if (directoryName != String.Empty)
{
Directory.CreateDirectory(dir + directoryName);
}
if (fileName != String.Empty)
{
FileStream streamWriter = File.Create(dir + theEntry.Name);
byte[] data = new byte[2048];
while (true)
{
var size = s.Read(data, 0, data.Length);
if (size > 0)
{
streamWriter.Write(data, 0, size);
}
else
{
break;
}
}
streamWriter.Close();
}
}
s.Close();
return true;
}
}
public class ClassZip
{
#region 私有方法
/// <summary>
/// 递归压缩文件夹方法
/// </summary>
private static bool ZipFileDictory(string folderToZip, ZipOutputStream s, string parentFolderName)
{
bool res = true;
ZipEntry entry = null;
FileStream fs = null;
Crc32 crc = new Crc32();
try
{
entry = new ZipEntry(Path.Combine(parentFolderName, Path.GetFileName(folderToZip) + "/"));
s.PutNextEntry(entry);
s.Flush();
var filenames = Directory.GetFiles(folderToZip);
foreach (string file in filenames)
{
fs = File.OpenRead(file);
byte[] buffer = new byte[fs.Length];
fs.Read(buffer, 0, buffer.Length);
entry =
new ZipEntry(Path.Combine(parentFolderName,
Path.GetFileName(folderToZip) + "/" + Path.GetFileName(file)))
{
DateTime = DateTime.Now,
Size = fs.Length
};
fs.Close();
crc.Reset();
crc.Update(buffer);
entry.Crc = crc.Value;
s.PutNextEntry(entry);
s.Write(buffer, 0, buffer.Length);
}
}
catch
{
res = false;
}
finally
{
if (fs != null)
{
fs.Close();
}
if (entry != null)
{
}
GC.Collect();
GC.Collect(1);
}
var folders = Directory.GetDirectories(folderToZip);
if (folders.Any(folder => folderToZip != null && !ZipFileDictory(folder, s, Path.Combine(parentFolderName, Path.GetFileName(folderToZip)))))
{
return false;
}
return res;
}
/// <summary>
/// 压缩目录
/// </summary>
/// <param name="folderToZip">待压缩的文件夹，全路径格式</param>
/// <param name="zipedFile">压缩后的文件名，全路径格式</param>
/// <param name="level"></param>
private static bool ZipFileDictory(string folderToZip, string zipedFile, int level)
{
if (!Directory.Exists(folderToZip))
{
return false;
}
ZipOutputStream s = new ZipOutputStream(File.Create(zipedFile));
s.SetLevel(level);
var res = ZipFileDictory(folderToZip, s, "");
s.Finish();
s.Close();
return res;
}
/// <summary>
/// 压缩文件
/// </summary>
/// <param name="fileToZip">要进行压缩的文件名</param>
/// <param name="zipedFile">压缩后生成的压缩文件名</param>
/// <param name="level"></param>
private static bool ZipFile(string fileToZip, string zipedFile, int level)
{
if (!File.Exists(fileToZip))
{
throw new FileNotFoundException("指定要压缩的文件: " + fileToZip + " 不存在!");
}
FileStream zipFile = null;
ZipOutputStream zipStream = null;
ZipEntry zipEntry = null;
bool res = true;
try
{
zipFile = File.OpenRead(fileToZip);
byte[] buffer = new byte[zipFile.Length];
zipFile.Read(buffer, 0, buffer.Length);
zipFile.Close();
zipFile = File.Create(zipedFile);
zipStream = new ZipOutputStream(zipFile);
zipEntry = new ZipEntry(Path.GetFileName(fileToZip));
zipStream.PutNextEntry(zipEntry);
zipStream.SetLevel(level);
zipStream.Write(buffer, 0, buffer.Length);
}
catch
{
res = false;
}
finally
{
if (zipEntry != null)
{
}
if (zipStream != null)
{
zipStream.Finish();
zipStream.Close();
}
if (zipFile != null)
{
zipFile.Close();
}
GC.Collect();
GC.Collect(1);
}
return res;
}
#endregion
/// <summary>
/// 压缩
/// </summary>
/// <param name="fileToZip">待压缩的文件目录</param>
/// <param name="zipedFile">生成的目标文件</param>
/// <param name="level">6</param>
public static bool Zip(String fileToZip, String zipedFile, int level)
{
if (Directory.Exists(fileToZip))
{
return ZipFileDictory(fileToZip, zipedFile, level);
}
else if (File.Exists(fileToZip))
{
return ZipFile(fileToZip, zipedFile, level);
}
else
{
return false;
}
}
/// <summary>
/// 解压
/// </summary>
/// <param name="fileToUpZip">待解压的文件</param>
/// <param name="zipedFolder">解压目标存放目录</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;
FileStream streamWriter = null;
try
{
s = new ZipInputStream(File.OpenRead(fileToUpZip));
while ((theEntry = s.GetNextEntry()) != null)
{
if (theEntry.Name != String.Empty)
{
var fileName = Path.Combine(zipedFolder, theEntry.Name);
if (fileName.EndsWith("/") || fileName.EndsWith("\\"))
{
Directory.CreateDirectory(fileName);
continue;
}
streamWriter = File.Create(fileName);
byte[] data = new byte[2048];
while (true)
{
var size = s.Read(data, 0, data.Length);
if (size > 0)
{
streamWriter.Write(data, 0, size);
}
else
{
break;
}
}
}
}
}
finally
{
if (streamWriter != null)
{
streamWriter.Close();
}
if (theEntry != null)
{
}
if (s != null)
{
s.Close();
}
GC.Collect();
GC.Collect(1);
}
}
}
public class ZipHelper
{
#region 私有变量
String _theRar;
RegistryKey _theReg;
Object _theObj;
String _theInfo;
ProcessStartInfo _theStartInfo;
Process _theProcess;
#endregion
/// <summary>
/// 压缩
/// </summary>
/// <param name="zipname">要解压的文件名</param>
/// <param name="zippath">要压缩的文件目录</param>
/// <param name="dirpath">初始目录</param>
public void EnZip(string zipname, string zippath, string dirpath)
{
try
{
_theReg = Registry.ClassesRoot.OpenSubKey(@"Applications\WinRAR.exe\Shell\Open\Command");
if (_theReg != null)
{
_theObj = _theReg.GetValue("");
_theRar = _theObj.ToString();
_theReg.Close();
}
_theRar = _theRar.Substring(1, _theRar.Length - 7);
_theInfo = " a " + zipname + " " + zippath;
_theStartInfo = new ProcessStartInfo
{
FileName = _theRar,
Arguments = _theInfo,
WindowStyle = ProcessWindowStyle.Hidden,
WorkingDirectory = dirpath
};
_theProcess = new Process { StartInfo = _theStartInfo };
_theProcess.Start();
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
}
/// <summary>
/// 解压缩
/// </summary>
/// <param name="zipname">要解压的文件名</param>
/// <param name="zippath">要解压的文件路径</param>
public void DeZip(string zipname, string zippath)
{
try
{
_theReg = Registry.ClassesRoot.OpenSubKey(@"Applications\WinRar.exe\Shell\Open\Command");
if (_theReg != null)
{
_theObj = _theReg.GetValue("");
_theRar = _theObj.ToString();
_theReg.Close();
}
_theRar = _theRar.Substring(1, _theRar.Length - 7);
_theInfo = " X " + zipname + " " + zippath;
_theStartInfo = new ProcessStartInfo
{
FileName = _theRar,
Arguments = _theInfo,
WindowStyle = ProcessWindowStyle.Hidden
};
_theProcess = new Process { StartInfo = _theStartInfo };
_theProcess.Start();
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
}
}
文件压缩解压缩
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