C#调用Winrar进行压缩解压缩
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调用Winrar.exe压缩和解压缩源代码
using System;
using System.Collections.Specialized;
using System.Diagnostics;
using System.IO;
using System.Text;
using System.Text.RegularExpressions;
namespace cjl.Utility
{
/// <summary>
/// 调用Winrar.exe压缩和解压缩。
/// </summary>
public class Winrar
{
private string winrarExe;
private string password;
private static Regex regexDir = new Regex(@"^[a-zA-Z]:[^\n]*\\$", RegexOptions.IgnoreCase | RegexOptions.Compiled);
private static Regex regexFile = new Regex(@"^[a-zA-Z]:\\.+\.rar$", RegexOptions.IgnoreCase | RegexOptions.Compiled);
/// <summary>
/// 构造函数。
/// </summary>
/// <param name="dirOfWinrarExe">Winrar.exe所在的目录（绝对路径）。
/// 请你拷贝Winrar.exe到一个你有读写权限的目录，然后用此目录作为参数。否则将不能执行。
/// </param>
/// <param name="password">用来压缩或解压缩时使用的密码，如果没有密码，请用另一无password参数的构造函数。</param>
/// <remarks>
/// 调用方法
/// <code>
/// <xmp>
/// string dirOfWinrarExe = @"D:\Winrar\";
/// Winrar rar = new Winrar(dirOfWinrarExe);
///
/// StringCollection dirs = new StringCollection();
/// dirs.Add(@"C:\A\");
/// dirs.Add(@"C:\B\");
///
/// StringCollection files = new StringCollection();
/// files.Add(@"D:\a.txt");
/// files.Add(@"D:\b.htm");
///
/// string rarFile = @"D:\backup.rar";
/// bool isDeleteSource = false;
/// rar.Compress(dirs, files, rarFile, isDeleteSource);
///
/// string dir = @"D:\A\";
/// rar.CompressDir(dir, rarFile, isDeleteSource);
///
/// string file = @"C:\a.txt";
/// rar.CompressFile(file, rarFile, isDeleteSource);
/// </xmp>
/// </code>
/// </remarks>
public Winrar(string dirOfWinrarExe, string password)
{
CheckDirectoryName(dirOfWinrarExe);
this.winrarExe = dirOfWinrarExe + "Winrar.exe";
this.password = CheckPassword(password);
}
/// <summary>
/// 构造函数
/// </summary>
/// <param name="dirOfWinrarExe">Winrar.exe所在的目录（绝对路径）。
/// 请你拷贝Winrar.exe到一个你有读写权限的目录，然后用此目录作为参数。否则将不能执行。
/// </param>
public Winrar(string dirOfWinrarExe)
{
CheckDirectoryName(dirOfWinrarExe);
this.winrarExe = dirOfWinrarExe + "Winrar.exe";
this.password = null;
}
private static void CheckDirectoryNames(StringCollection directoryNames)
{
if (directoryNames == null)
{
return;
}
foreach (string directoryName in directoryNames)
{
if (directoryName == null)
{
continue;
}
CheckDirectoryName(directoryName);
}
}
private static void CheckDirectoryName(string directoryName)
{
directoryName = PhysicalPath.ToWellFormat(directoryName);
if (directoryName == null)
{
throw new Exception("目录名不可以为null。");
}
if (!regexDir.IsMatch(directoryName))
{
throw new Exception(@"目录名称请用绝对路径，须以“\”结束。如：C:\Windows\。");
}
}
/// <summary>
/// 检查密码是否符合格式。
/// </summary>
/// <param name="password">密码</param>
/// <returns>密码</returns>
private static string CheckPassword(string password)
{
if (password == null)
{
throw new Exception("密码不可以为null。如不要密码，请用另一无password参数的构造函数。");
}
Regex regex = new Regex(@"^\w+$");
if (!regex.IsMatch(password))
{
throw new Exception("密码请用字母，数字，下画线。");
}
return password;
}
/// <summary>
/// 检查是否扩展名为.rar的文件名。
/// </summary>
/// <param name="rarFile">winrar文件名（绝对路径）</param>
/// <returns>winrar文件名（绝对路径）</returns>
private static void CheckRarFile(string rarFile)
{
if (rarFile == null)
{
throw new Exception("文件名不可以为null。");
}
if (!regexFile.IsMatch(rarFile))
{
throw new Exception(@"文件名称请用绝对路径，须以“扩展名.rar”结束。如：C:\Windows\aa.rar");
}
}
/// <summary>
/// 生成一个临时文件(backup.lst)。该文件中每一行包括一个要压缩的文件名。
/// 该文件名用于构造命令winrar a backup.rar @backup.rar。请参考winrar.exe帮助
/// </summary>
/// <param name="files">要压缩的文件名数组。</param>
/// <param name="lstFile">临时文件名，用于构造命令winrar a backup.rar @backup.rar</param>
private void CreateLstFile(StringCollection dirs, StringCollection files, out string lstFile)
{
string path = winrarExe.Substring(0, winrarExe.LastIndexOf("\\") + 1);
string filename = Guid.NewGuid().ToString() + ".lst";
lstFile = path + filename;
StreamWriter sw = new StreamWriter(lstFile, false, Encoding.GetEncoding("gb2312"));
if (files != null)
{
foreach (string file in files)
{
sw.WriteLine(file);
}
}
if (dirs != null)
{
foreach (string dir in dirs)
{
sw.WriteLine(dir);
}
}
sw.Close();
}
/// <summary>
/// 检查是文件名是否符合格式（绝对路径）。
/// </summary>
/// <param name="files">文件名数组（绝对路径）。</param>
private static void CheckFiles(StringCollection files)
{
if (files == null)
{
return;
}
Regex regex = new Regex(@"[a-zA-Z]:\\.+\..+");
foreach (string file in files)
{
if (file == null)
{
throw new Exception("文件名不可以为null。");
}
if (!regex.IsMatch(file))
{
throw new Exception(@"文件名称请用绝对路径，并注意格式。如：C:\Windows\aa.txt");
}
}
}
/// <summary>
/// 压缩指定文件列表。
/// </summary>
/// <param name="rarFile">压缩后的文件名（绝对路径）。</param>
/// <param name="deleteSource">压缩后是否删除源文件列表。</param>
/// <param name="files">要压缩的文件列表（绝对路径）。</param>
public void Compress(StringCollection dirs, StringCollection files, string rarFile, bool deleteSource)
{
CheckRarFile(rarFile);
if (File.Exists(rarFile))
{
File.Delete(rarFile);
}
CheckDirectoryNames(dirs);
CheckFiles(files);
string lstFile;
this.CreateLstFile(dirs, files, out lstFile);
Process p = new Process();
// 需要启动的程序名
p.StartInfo.FileName = winrarExe;
// 参数
string arguments = @"a -ibck-r -y -o+ -ep1 ";
if (password != null)
{
arguments += " -p" + password;
}
arguments += " " + rarFile + " @" + lstFile + " VsProject\\";
p.StartInfo.Arguments = arguments;
p.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
p.Start(); //启动
p.WaitForExit();
p.Close();
if (deleteSource)
{
if (dirs != null)
{
foreach (string dir in dirs)
{
if (Directory.Exists(dir))
{
Directory.Delete(dir, true);
}
}
}
if (files != null)
{
foreach (string file in files)
{
if (File.Exists(file))
{
File.Delete(file);
}
}
}
}
File.Delete(lstFile);
}
/// <summary>
/// 压缩目录
/// </summary>
/// <param name="dir">文件（绝对路径）</param>
/// <param name="rarFileToSave">压缩后的文件名（绝对路径）。</param>
/// <param name="deleteSource">压缩后是否删除目录</param>
/// </summary>
public void CompressDir(string dir, string rarFileToSave, bool deleteSource)
{
StringCollection dirs = new StringCollection();
dirs.Add(dir);
Compress(dirs, null, rarFileToSave, deleteSource);
}
/// <summary>
/// 压缩文件
/// </summary>
/// <param name="file">文件（绝对路径）</param>
/// <param name="rarFileToSave">压缩后的文件名（绝对路径）。</param>
/// <param name="deleteSource">压缩后是否删除文件</param>
public void CompressFile(string file, string rarFileToSave, bool deleteSource)
{
StringCollection files = new StringCollection();
files.Add(file);
Compress(null, files, rarFileToSave, deleteSource);
}
/// <summary>
/// 解压缩rar文件。
/// </summary>
/// <param name="rarFile">rar文件（绝对路径）。</param>
/// <param name="dirToSave">解压缩保存的目录。</param>
/// <param name="deleteRarFile">解压缩后是否删除rar文件。</param>
public void Decompress(string rarFile, string dirToSave, bool deleteRarFile)
{
CheckDirectoryName(dirToSave);
CheckRarFile(rarFile);
Process p = new Process();
// 需要启动的程序名
p.StartInfo.FileName = winrarExe;
// 参数
string arguments = @"x -inul -y -o+ -ep1";
if (password != null)
{
arguments += " -p" + password;
}
arguments += " " + rarFile + " " + dirToSave;
p.StartInfo.Arguments = arguments;
p.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
p.Start(); //启动
p.WaitForExit();
if (deleteRarFile)
{
File.Delete(rarFile);
}
}
}
}
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