.Net 下利用ICSharpCode.SharpZipLib.dll实现文件、文件夹压缩、解压缩

添加引用ICSharpCode.SharpZipLib.dll

using System;using System.Collections.Generic;using System.IO;using System.Threading;using ICSharpCode.SharpZipLib.Zip;namespace Lib{ /// <summary> /// 文件压缩、解压缩 /// </summary> public class FileCompression { /// <summary> /// 构造函数 /// </summary> public FileCompression() { } #region 加密、压缩文件 /// <summary> /// 压缩文件 /// </summary> /// <param name="fileNames">要打包的文件列表</param> /// <param name="GzipFileName">目标文件名</param> /// <param name="CompressionLevel">压缩品质级别（0~9）</param> /// <param name="SleepTimer">休眠时间（单位毫秒）</param> public static void Compress(List<FileInfo> fileNames, string GzipFileName, int CompressionLevel, int SleepTimer) { ZipOutputStream s = new ZipOutputStream(File.Create(GzipFileName)); try { s.SetLevel(CompressionLevel); //0 - store only to 9 - means best compression foreach (FileInfo file in fileNames) { FileStream fs = null; try { fs = file.Open(FileMode.Open, FileAccess.ReadWrite); } catch { continue; } // 方法二，将文件分批读入缓冲区 byte[] data = new byte[2048]; int size = 2048; ZipEntry entry = new ZipEntry(Path.GetFileName(file.Name)); entry.DateTime = (file.CreationTime > file.LastWriteTime ? file.LastWriteTime : file.CreationTime); s.PutNextEntry(entry); while (true) { size = fs.Read(data, 0, size); if (size <= 0) break; s.Write(data, 0, size); } fs.Close(); file.Delete(); Thread.Sleep(SleepTimer); } } finally { s.Finish(); s.Close(); } } #endregion #region 解密、解压缩文件 /// <summary> /// 解压缩文件 /// </summary> /// <param name="GzipFile">压缩包文件名</param> /// <param name="targetPath">解压缩目标路径</param> public static void Decompress(string GzipFile, string targetPath) { //string directoryName = Path.GetDirectoryName(targetPath + "//") + "//"; string directoryName = targetPath; if (!Directory.Exists(directoryName)) Directory.CreateDirectory(directoryName);//生成解压目录 string CurrentDirectory = directoryName; byte[] data = new byte[2048]; int size = 2048; ZipEntry theEntry = null; using (ZipInputStream s = new ZipInputStream(File.OpenRead(GzipFile))) { while ((theEntry = s.GetNextEntry()) != null) { if (theEntry.IsDirectory) {// 该结点是目录 if (!Directory.Exists(CurrentDirectory + theEntry.Name)) Directory.CreateDirectory(CurrentDirectory + theEntry.Name); } else { if (theEntry.Name != String.Empty) { //解压文件到指定的目录 using (FileStream streamWriter = File.Create(CurrentDirectory + theEntry.Name)) { while (true) { size = s.Read(data, 0, data.Length); if (size <= 0) break; streamWriter.Write(data, 0, size); } streamWriter.Close(); } } } } s.Close(); } } #endregion }}

demo链接：demo资源下载