基于C# 生成Zip压缩包代码

 /// 
 /// 压缩枚举 /// 
 public enum ZipEnum { //压缩时间长，压缩率高 BZIP, //压缩效率高，压缩率低 GZIP }

 #region 制作压缩包（单个文件压缩） /// 
 /// 制作压缩包（单个文件压缩） /// 
 /// 原文件 /// 压缩文件 /// 压缩算法枚举 /// 压缩成功标志 public static bool ZipFile(string srcFileName, string zipFileName, ZipEnum zipEnum) { bool flag = true; try { switch (zipEnum) { case ZipEnum.BZIP: FileStream inStream = File.OpenRead(srcFileName); FileStream outStream = File.Open(zipFileName, FileMode.Create); //参数true表示压缩完成后，inStream和outStream连接都释放 BZip.Compress(inStream, outStream, true, ); inStream.Close(); outStream.Close(); break; case ZipEnum.GZIP: FileStream srcFile = File.OpenRead(srcFileName); GZipOutputStream zipFile = newGZipOutputStream(File.Open(zipFileName, FileMode.Create)); byte[] fileData = new byte[srcFile.Length]; srcFile.Read(fileData, , (int)srcFile.Length); zipFile.Write(fileData, , fileData.Length); srcFile.Close(); zipFile.Close(); break; default: break; } } catch { flag = false; } return flag; }

 #region 解压缩包（单个文件解压缩） /// 
 /// 解压缩包（单个文件解压缩） /// 
 /// 压缩文件 /// 解压缩文件 /// 压缩算法枚举 /// 压缩成功标志 public static bool UnZipFile(string zipFileName, stringunzipFileName, ZipEnum zipEnum) { bool flag = true; try { switch (zipEnum) { case ZipEnum.BZIP: FileStream inStream = File.OpenRead(zipFileName); FileStream outStream = File.Open(unzipFileName, FileMode.Create); BZip.Decompress(inStream, outStream, true); break; case ZipEnum.GZIP: GZipInputStream zipFile = newGZipInputStream(File.OpenRead(zipFileName)); FileStream destFile = File.Open(unzipFileName, FileMode.Create); int bufferSize = * ; byte[] fileData = new byte[bufferSize]; while (bufferSize > ) { bufferSize = zipFile.Read(fileData, , bufferSize); zipFile.Write(fileData, , bufferSize); } destFile.Close(); zipFile.Close(); break; default: break; } } catch { flag = false; } return flag; } #endregion

 #region 制作压缩包（多个文件压缩到一个压缩包，支持加密、注释） /// 
 /// 制作压缩包（多个文件压缩到一个压缩包，支持加密、注释） /// 
 /// 压缩文件目录 /// 压缩包文件名 /// 压缩级别 - /// 密码 /// 注释 public static void ZipFiles(string topDirectoryName, string zipedFileName, intcompresssionLevel, string password, string comment) { using (ZipOutputStream zos = newZipOutputStream(File.Open(zipedFileName, FileMode.OpenOrCreate))) { if (compresssionLevel != ) { zos.SetLevel(compresssionLevel);//设置压缩级别 } if (!string.IsNullOrEmpty(password)) { zos.Password = password;//设置zip包加密密码 } if (!string.IsNullOrEmpty(comment)) { zos.SetComment(comment);//设置zip包的注释 } //循环设置目录下所有的*.jpg-600文件（支持子目录搜索） foreach (string file inDirectory.GetFiles(topDirectoryName, "*.jpg-600", SearchOption.AllDirectories)) { if (File.Exists(file)) { FileInfo item = new FileInfo(file); FileStream fs = File.OpenRead(item.FullName); byte[] buffer = new byte[fs.Length]; fs.Read(buffer, , buffer.Length); ZipEntry entry = new ZipEntry(item.Name); zos.PutNextEntry(entry); zos.Write(buffer, , buffer.Length); } } } } #endregion

 #region 解压缩包（将压缩包解压到指定目录） /// 
 /// 解压缩包（将压缩包解压到指定目录） /// 
 /// 压缩包名称 /// 解压缩目录 /// 密码 public static void UnZipFiles(string zipedFileName, string unZipDirectory, stringpassword) { using (ZipInputStream zis = newZipInputStream(File.Open(zipedFileName, FileMode.OpenOrCreate))) { if (!string.IsNullOrEmpty(password)) { zis.Password = password;//有加密文件的，可以设置密码解压 } ZipEntry zipEntry; while ((zipEntry = zis.GetNextEntry()) != null) { string directoryName = Path.GetDirectoryName(unZipDirectory); string pathName = Path.GetDirectoryName(zipEntry.Name); string fileName = Path.GetFileName(zipEntry.Name); pathName = pathName.Replace(".", "$"); directoryName += "\\" + pathName; if (!Directory.Exists(directoryName)) { Directory.CreateDirectory(directoryName); } if (!string.IsNullOrEmpty(fileName)) { FileStream fs = File.Create(Path.Combine(directoryName, fileName)); int size = ; byte[] bytes = new byte[]; while (true) { size = zis.Read(bytes, , bytes.Length); if (size > ) { fs.Write(bytes, , size); } else { break; } } fs.Close(); } } } } #endregion

 ZipFileUtil.ZipFiles(@"E:\\test\\", "E:\\test.zip", 1, "admin", "this is admin's comment.");//制作压缩包 ZipFileUtil.UnZipFiles("E:\\test.zip", "E:\\guwei4037\\", "admin");//解压缩包