/// <summary>
/// 压缩文件帮助类
/// </summary>
public class ZipHelper
{
/// <summary>
/// 压缩文件
/// </summary>
/// <param name="strFile">源文件夹</param>
/// <param name="strZip">目标文件</param>
public void ZipFiles(string strFile, string strZip)
{
if (strFile[strFile.Length - 1] != Path.DirectorySeparatorChar)
strFile += Path.DirectorySeparatorChar;
ZipOutputStream s = new ZipOutputStream(File.Create(strZip));
s.SetLevel(6); // 0 - store only to 9 - means best compression
zip(strFile, s, strZip);
s.Finish();
s.Close();
}
/// <summary>
/// 压缩多个文件到压缩文件
/// </summary>
/// <param name="strFile">文件列表</param>
/// <param name="strZip"></param>
public void ZipFiles(string[] strFiles, string strZip)
{
ZipOutputStream s = new ZipOutputStream(File.Create(strZip));
s.SetLevel(6); // 0 - store only to 9 - means best compression
s.Password = "@isino";
foreach (string file in strFiles)
{
FileStream fs = File.OpenRead(file);
byte[] buffer = new byte[fs.Length];
fs.Read(buffer, 0, buffer.Length);
string tempfile = file.Substring(file.LastIndexOf("\") + 1);
ZipEntry entry = new ZipEntry(tempfile);
s.PutNextEntry(entry);
s.Write(buffer, 0, buffer.Length);
}
s.Finish();
s.Close();
}
/// <summary>
/// 压缩文件
/// </summary>
/// <param name="strFileName">源文件名</param>
/// <param name="strZip">目标文件名</param>
public void ZipFile(string strFileName, string strZip)
{
ZipOutputStream s = new ZipOutputStream(File.Create(strZip));
s.SetLevel(6); // 0 - store only to 9 - means best compression
FileStream fs = File.OpenRead(strFileName);
byte[] buffer = new byte[fs.Length];
fs.Read(buffer, 0, buffer.Length);
string tempfile = strFileName.Substring(strFileName.LastIndexOf("\") + 1);
ZipEntry entry = new ZipEntry(tempfile);
Crc32 crc = new Crc32();
entry.DateTime = DateTime.Now;
entry.Size = fs.Length;
fs.Close();
crc.Reset();
crc.Update(buffer);
entry.Crc = crc.Value;
s.PutNextEntry(entry);
s.Write(buffer, 0, buffer.Length);
s.Finish();
s.Close();
}
private void zip(string strFile, ZipOutputStream s, string staticFile)
{
if (strFile[strFile.Length - 1] != Path.DirectorySeparatorChar) strFile += Path.DirectorySeparatorChar;
Crc32 crc = new Crc32();
string[] filenames = Directory.GetFileSystemEntries(strFile);
foreach (string file in filenames)
{
if (Directory.Exists(file))
{
zip(file, s, staticFile);
}
else // 否则直接压缩文件
{
//打开压缩文件
FileStream fs = File.OpenRead(file);
byte[] buffer = new byte[fs.Length];
fs.Read(buffer, 0, buffer.Length);
string tempfile = file.Substring(staticFile.LastIndexOf("\") + 1);
ZipEntry entry = new ZipEntry(tempfile);
entry.DateTime = DateTime.Now;
entry.Size = fs.Length;
fs.Close();
crc.Reset();
crc.Update(buffer);
entry.Crc = crc.Value;
s.PutNextEntry(entry);
s.Write(buffer, 0, buffer.Length);
}
}
}
public string unZipFile(string TargetFile, string fileDir)
{
string rootFile = " ";
try
{
//读取压缩文件(zip文件)，准备解压缩
ZipInputStream s = new ZipInputStream(File.OpenRead(TargetFile.Trim()));
ZipEntry theEntry;
string path = fileDir;
//解压出来的文件保存的路径
string rootDir = " ";
//根目录下的第一个子文件夹的名称
while ((theEntry = s.GetNextEntry()) != null)
{
rootDir = Path.GetDirectoryName(theEntry.Name);
//得到根目录下的第一级子文件夹的名称
if (rootDir.IndexOf("\") >= 0)
{
rootDir = rootDir.Substring(0, rootDir.IndexOf("\") + 1);
}
string dir = Path.GetDirectoryName(theEntry.Name);
//根目录下的第一级子文件夹的下的文件夹的名称
string fileName = Path.GetFileName(theEntry.Name);
//根目录下的文件名称
if (dir != " ")
//创建根目录下的子文件夹,不限制级别
{
if (!Directory.Exists(fileDir + "\" + dir))
{
path = fileDir + "\" + dir;
//在指定的路径创建文件夹
Directory.CreateDirectory(path);
}
}
else if (dir == " " && fileName != "")
//根目录下的文件
{
path = fileDir;
rootFile = fileName;
}
else if (dir != " " && fileName != "")
//根目录下的第一级子文件夹下的文件
{
if (dir.IndexOf("\") > 0)
//指定文件保存的路径
{
path = fileDir + "\" + dir;
}
}
if (dir == rootDir)
//判断是不是需要保存在根目录下的文件
{
path = fileDir + "\" + rootDir;
}
//以下为解压缩zip文件的基本步骤
//基本思路就是遍历压缩文件里的所有文件，创建一个相同的文件。
if (fileName != String.Empty)
{
FileStream streamWriter = File.Create(path + "\" + 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;
}
}
streamWriter.Close();
}
}
s.Close();
return rootFile;
}
catch (Exception ex)
{
return "1; " + ex.Message;
}
}
/// <summary>
/// 压缩文件
/// </summary>
/// <param name="sourceFilesPaths">要压缩的文件路径列表</param>
/// <param name="compressFileSavePath">压缩文件存放路径</param>
/// <param name="compressFileName">压缩文件名(全名)</param>
public void CompressFileForReportTable(ArrayList sourceFilesPaths, string compressFileSavePath, string compressFileName)
{
String the_rar;
RegistryKey the_Reg;
System.Object the_Obj;
String the_Info;
ProcessStartInfo the_StartInfo;
Process the_Process;
try
{
//使用注册表对象获取到WiNRar路径
the_Reg = Registry.ClassesRoot.OpenSubKey(@"ApplicationsWinRAR.exeShellOpenCommand");
the_Obj = the_Reg.GetValue("");
the_rar = the_Obj.ToString();
the_Reg.Close();
the_rar = the_rar.Substring(1, the_rar.Length - 7);
the_Info = " a " + compressFileName;
foreach (object filePath in sourceFilesPaths)
{
the_Info += " " + filePath.ToString();//每个文件路径要与其它的空格隔开
}
the_StartInfo = new ProcessStartInfo();
the_StartInfo.FileName = the_rar;
the_StartInfo.Arguments = the_Info;
the_StartInfo.WindowStyle = ProcessWindowStyle.Normal;//Hidden 隐藏样式
the_StartInfo.WorkingDirectory = compressFileSavePath;//获取或设置要启动的进程的初始目录。(RAR存放路径)
the_Process = new Process();
the_Process.StartInfo = the_StartInfo;
the_Process.Start();
}
catch (Exception ex)
{
}
}
/// <summary>
/// 解压缩指定的rar文件。
/// </summary>
/// <param name="rarFileToDecompress">rar文件（绝对路径）。</param>
/// <param name="directoryToSave">解压缩保存的目录。</param>
/// <param name="deleteRarFile">解压缩后删除rar文件。</param>
public void DecompressRAR(string rarFileToDecompress, string directoryToSave, bool deleteRarFile)
{
String the_rar;
RegistryKey the_Reg;
Object the_Obj;
the_Reg = Registry.ClassesRoot.OpenSubKey(@"ApplicationsWinRAR.exeShellOpenCommand");
the_Obj = the_Reg.GetValue("");
the_rar = the_Obj.ToString();
the_Reg.Close();
the_rar = the_rar.Substring(1, the_rar.Length - 7);
string winrarExe = the_rar;//需要在指定路径下放入winara.exe的可执行文件在安装目录下可以找到这个文件
if (new FileInfo(winrarExe).Exists)
{
//directoryToSave = CheckDirectoryName(directoryToSave);
try
{
Process p = new Process();
// 需要启动的程序名
p.StartInfo.FileName = winrarExe;
// 参数
string arguments = @"x -inul -y -o+";
arguments += " " + rarFileToDecompress + " " + directoryToSave;
p.StartInfo.Arguments = arguments;
p.Start();//启动
while (!p.HasExited)
{
}
p.WaitForExit();
}
catch (Exception ee)
{
throw new Exception("压缩文件在解压缩的过程中出现了错误！");
}
if (deleteRarFile)
{
File.Delete(rarFileToDecompress);
}
}
else
{
throw new Exception("本机上缺少必须的Winrar.exe文件，不能完成相应操作请联系管理员安装WinRar解压工具!");
}
}
}
