转载地址https://www.cnblogs.com/haofaner/p/6048017.html using System;using System.Linq;using System.IO;using ICSharpCode.SharpZipLib.Zip;using ICSharpCode.SharpZipLib.Checksums;using System.Diagnostics;using Microsoft.Win32;namespace ZipCommon{ public class ZipHelper { #region 压缩多个文件 /// /// 压缩多个文件 /// /// 文件名 /// 压缩包文件名 /// 解压码 /// public static void Zip(string[] files, string ZipedFileName, string Password) { files = files.Where(f => File.Exists(f)).ToArray(); if (files.Length == 0) throw new FileNotFoundException("未找到指定打包的文件"); ZipOutputStream s = new ZipOutputStream(File.Create(ZipedFileName)); s.SetLevel(6); if (!string.IsNullOrEmpty(Password.Trim())) s.Password = Password.Trim(); ZipFileDictory(files, s); s.Finish(); s.Close(); } /// /// 压缩多个文件 /// /// 文件名 /// 压缩包文件名 /// public static void Zip(string[] files, string ZipedFileName) { Zip(files, ZipedFileName, string.Empty); } private static void ZipFileDictory(string[] files, ZipOutputStream s) { ZipEntry entry = null; FileStream fs = null; Crc32 crc = new Crc32(); try { //创建当前文件夹 entry = new ZipEntry("/"); //加上 “/” 才会当成是文件夹创建 s.PutNextEntry(entry); s.Flush(); foreach (string file in files) { //打开压缩文件 fs = File.OpenRead(file); byte[] buffer = new byte[fs.Length]; fs.Read(buffer, 0, buffer.Length); entry = new ZipEntry("/" + Path.GetFileName(file)); 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); } } finally { if (fs != null) { fs.Close(); fs = null; } if (entry != null) entry = null; GC.Collect(); } } #endregion 压缩多个文件 #region 解压文件 包括.rar 和zip /// ///解压文件 /// /// 解压前的文件路径（绝对路径） /// 解压后的文件目录（绝对路径） 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; default: UnZip(fileFromUnZip, fileToUnZip); break; } } #endregion #region 解压文件 .rar文件 /// /// 解压 /// /// /// /// /// 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 /// /// 解压功能(解压压缩文件到指定目录) /// /// 待解压的文件 /// 指定解压目标目录 public static void UnZip(string FileToUpZip, string ZipedFolder) { if (!File.Exists(FileToUpZip)) { return; } if (!Directory.Exists(ZipedFolder)) { Directory.CreateDirectory(ZipedFolder); } ICSharpCode.SharpZipLib.Zip.ZipInputStream s = null; ICSharpCode.SharpZipLib.Zip.ZipEntry theEntry = null; string fileName; FileStream streamWriter = null; try { s = new ICSharpCode.SharpZipLib.Zip.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 }}