c#压缩和解压
压缩:
public void RARsave(string patch,string rarPatch,string rarName)
{
String the_rar; RegistryKey the_Reg; Object the_Obj; String the_Info; ProcessStartInfo the_StartInfo; Process the_Process; try
{
the_Reg = Registry.ClassesRoot.OpenSubKey(@"Applications\\WinRAR.exe\\Shell\\Open\\Command"); the_Obj = the_Reg.GetValue(""); the_rar = the_Obj.ToString(); the_Reg.Close(); the_rar = the_rar.Substring(1, the_rar.Length - 7); Directory.CreateDirectory(patch); //命令参数 //the_Info = " a " + rarName + " " + @"C:Test€70821.txt"; //文件压缩 the_Info = " a " + rarName + " " + patch + " -r"; ; the_StartInfo = new ProcessStartInfo(); the_StartInfo.FileName = the_rar; the_StartInfo.Arguments = the_Info; the_StartInfo.WindowStyle = ProcessWindowStyle.Hidden; //打包文件存放目录 the_StartInfo.WorkingDirectory = rarPatch; the_Process = new Process(); the_Process.StartInfo = the_StartInfo; the_Process.Start(); the_Process.WaitForExit(); the_Process.Close();
} catch (Exception ex) { throw ex; }
} 解压:
public void unRAR(string unRarPatch,string rarPatch,string rarName) { String the_rar; RegistryKey the_Reg; Object the_Obj; String the_Info; ProcessStartInfo the_StartInfo; Process the_Process; try { the_Reg = Registry.ClassesRoot.OpenSubKey(@"Applications\\WinRAR.exe\\Shell\\Open\\Command"); the_Obj = the_Reg.GetValue(""); the_rar = the_Obj.ToString(); the_Reg.Close(); the_rar = the_rar.Substring(1, the_rar.Length - 7); Directory.CreateDirectory(Server.MapPath(unRarPatch)); the_Info = "e " + rarName + " " + Server.MapPath(unRarPatch) + " -y"; the_StartInfo = new ProcessStartInfo(); the_StartInfo.FileName = the_rar; the_StartInfo.Arguments = the_Info; the_StartInfo.WindowStyle = ProcessWindowStyle.Hidden; the_StartInfo.WorkingDirectory = Server.MapPath(rarPatch);//获取压缩包路径 the_Process = new Process(); the_Process.StartInfo = the_StartInfo; the_Process.Start(); the_Process.WaitForExit(); the_Process.Close(); } catch (Exception ex) { throw ex; } }RAR参数：
一、压缩命令
1、将temp.txt压缩为temp.rarrar a temp.rar temp.txt
2、将当前目录下所有文件压缩到temp.rarrar a temp.rar *.*
3、将当前目录下所有文件及其所有子目录压缩到temp.rarrar a temp.rar *.* -r
4、将当前目录下所有文件及其所有子目录压缩到temp.rar，并加上密码123rar a temp.rar *.* -r -p123
二、解压命令
1、将temp.rar解压到c:\temp目录rar e temp.rar c:\temprar e *.rar c:\temp(支持批量操作)
2、将temp.rar解压到c:\temp目录，并且解压后的目录结构和temp.rar中的目录结构一
压缩目录test及其子目录的文件内容
Wzzip test.zip test -r -P
WINRAR A test.rar test -r
删除压缩包中的*.txt文件
Wzzip test.zip *.txt -d
WinRAR d test.rar *.txt
刷新压缩包中的文件，即添加已经存在于压缩包中但更新的文件
Wzzip test.zip test -f
Winrar f test.rar test
更新压缩包中的文件，即添加已经存在于压缩包中但更新的文件以及新文件
Wzzip test.zip test -u
Winrar u test.rar test
移动文件到压缩包，即添加文件到压缩包后再删除被压缩的文件
Wzzip test.zip -r -P -m
Winrar m test.rar test -r
添加全部 *.exe 文件到压缩文件，但排除有 a或b
开头名称的文件
Wzzip test *.exe -xf*.* -xb*.*
WinRAR a test *.exe -xf*.* -xb*.*
加密码进行压缩
Wzzip test.zip test
-s123。注意密码是大小写敏感的。在图形界面下打开带密码的压缩文件，会看到+号标记（附图1）。
WINRAR A test.rar test -p123
-r。注意密码是大小写敏感的。在图形界面下打开带密码的压缩文件，会看到*号标记（附图2）。
按名字排序、以简要方式列表显示压缩包文件
Wzzip test.zip -vbn
Rar l test.rar
锁定压缩包，即防止未来对压缩包的任何修改
无对应命令
Winrar k test.rar
创建360kb大小的分卷压缩包
无对应命令
Winrar a -v360 test
带子目录信息解压缩文件
Wzunzip test -d
Winrar x test -r
不带子目录信息解压缩文件
Wzunzip test
Winrar e test
解压缩文件到指定目录，如果目录不存在，自动创建
Wzunzip test newfolder
Winrar x test newfolder
解压缩文件并确认覆盖文件
Wzunzip test -y
Winrar x test -y
解压缩特定文件
Wzunzip test *.txt
Winrar x test *.txt
解压缩现有文件的更新文件
Wzunzip test -f
Winrar x test -f
解压缩现有文件的更新文件及新文件
Wzunzip test -n
Winrar x test -u
批量解压缩文件
Wzunzip *.zip
WinRAR e *.rar
using System;using System.Data;using System.Configuration;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;using System.IO;using System.IO.Compression; public void CompressFile(string sourceFile, string destinationFile) { if (File.Exists(sourceFile) == false) throw new FileNotFoundException(); byte[] buffer = null; FileStream sourceStream = null; FileStream destinationStream = null; GZipStream compressedStream = null; try { sourceStream = new FileStream(sourceFile, FileMode.Open, FileAccess.Read, FileShare.Read); buffer = new byte[sourceStream.Length]; int checkCounter = sourceStream.Read(buffer, 0, buffer.Length); if (checkCounter != buffer.Length) { throw new ApplicationException(); } destinationStream = new FileStream(destinationFile, FileMode.OpenOrCreate, FileAccess.Write); compressedStream = new GZipStream(destinationStream, CompressionMode.Compress, true); compressedStream.Write(buffer, 0, buffer.Length); } catch (ApplicationException ex) { ex.ToString(); // MessageBox.Show ( ex.Message, "压缩文件时发生错误：", MessageBoxButtons.OK, MessageBoxIcon.Error ); } finally { if (sourceStream != null) sourceStream.Close(); if (compressedStream != null) compressedStream.Close(); if (destinationStream != null) destinationStream.Close(); } } public void DecompressFile(string sourceFile, string destinationFile) { if (File.Exists(sourceFile) == false) throw new FileNotFoundException(); FileStream sourceStream = null; FileStream destinationStream = null; GZipStream decompressedStream = null; byte[] quartetBuffer = null; try { sourceStream = new FileStream(sourceFile, FileMode.Open); decompressedStream = new GZipStream(sourceStream, CompressionMode.Decompress, true); quartetBuffer = new byte[4]; int position = (int)sourceStream.Length - 4; sourceStream.Position = position; sourceStream.Read(quartetBuffer, 0, 4); sourceStream.Position = 0; int checkLength = BitConverter.ToInt32(quartetBuffer, 0); byte[] buffer = new byte[checkLength + 100]; int offset = 0; int total = 0; while (true) { int bytesRead = decompressedStream.Read(buffer, offset, 100); if (bytesRead == 0) break; offset += bytesRead; total += bytesRead; } destinationStream = new FileStream(destinationFile, FileMode.Create); destinationStream.Write(buffer, 0, total); destinationStream.Flush(); } catch (ApplicationException ex) { ex.ToString(); //MessageBox.Show(ex.Message, "解压文件时发生错误：", MessageBoxButtons.OK, MessageBoxIcon.Error); } finally { if (sourceStream != null) sourceStream.Close(); if (decompressedStream != null) decompressedStream.Close(); if (destinationStream != null) destinationStream.Close(); } }
