需要引用Ionic.Zip命名空间
DLL下载地址在这里:http://dotnetzip.codeplex.com/
文件压缩
/// <summary> /// 压缩ZIP文件 /// 支持多文件和多目录,或是多文件和多目录一起压缩 /// </summary> /// <param name="list">待压缩的文件或目录集合</param> /// <param name="strZipName">压缩后的文件名</param> /// <param name="IsDirStruct">是否按目录结构压缩</param> /// <returns>成功:true/失败:false</returns> public static bool CompressMulti(List<string> list, string strZipName, bool IsDirStruct) { try { using (ZipFile zip = new ZipFile(Encoding.Default))//设置编码,解决压缩文件时中文乱码 { foreach (string path in list) { string fileName = Path.GetFileName(path);//取目录名称 //如果是目录 if (Directory.Exists(path)) { if (IsDirStruct)//按目录结构压缩 { zip.AddDirectory(path, fileName); } else//目录下的文件都压缩到Zip的根目录 { zip.AddDirectory(path); } } if (File.Exists(path))//如果是文件 { zip.AddFile(path); } } zip.Save(strZipName);//压缩 return true; } } catch (Exception) { return false; } }
文件解压
/// <summary> /// 解压ZIP文件 /// </summary> /// <param name="strZipPath">待解压的ZIP文件</param> /// <param name="strUnZipPath">解压的目录</param> /// <param name="overWrite">是否覆盖</param> /// <returns>成功:true/失败:false</returns> public static bool Decompression(string strZipPath, string strUnZipPath, bool overWrite) { try { ReadOptions options = new ReadOptions(); options.Encoding = Encoding.Default;//设置编码,解决解压文件时中文乱码 using (ZipFile zip = ZipFile.Read(strZipPath, options)) { foreach (ZipEntry entry in zip) { if (string.IsNullOrEmpty(strUnZipPath)) { strUnZipPath = strZipPath.Split('.').First(); } if (overWrite) { entry.Extract(strUnZipPath, ExtractExistingFileAction.OverwriteSilently);//解压文件,如果已存在就覆盖 } else { entry.Extract(strUnZipPath, ExtractExistingFileAction.DoNotOverwrite);//解压文件,如果已存在不覆盖 } } return true; } } catch (Exception) { return false; } }