zip类
public class ZipClass 
{
/**//// <summary>
/// 压缩方法 /// </summary> /// <param name="strPath">要压缩文件夹</param> /// <param name="strFileName">生成的文件名</param> /// <param name="PassWord">密码</param>
/// <returns>1 成功 -1输入的压缩文件夹为空 -2 输入的压缩文件夹目录不存在！</returns> public static int Zip(string strPath, string strFileName, string PassWord) { if (!String.IsNullOrEmpty(strPath)) { //throw new Exception("输入的压缩文件夹为空"); return -1; } if (!Directory.Exists(strPath)) { //throw new Exception("输入的压缩文件夹目录不存在！"); return -2; } if (!File.Exists(strFileName)) { File.Create(strFileName); } ZipOutputStream zip = new ZipOutputStream(File.Create(strFileName)); if (!string.IsNullOrEmpty(PassWord)) zip.Password = PassWord; IList<FileInfo> list = new List<FileInfo>(); GetFileList(strPath, list); try { byte[] buffer = new byte[2048]; int count = 0; foreach (FileInfo fi in list) { count = 0; using (FileStream fs = File.OpenRead(fi.FullName)) { ZipEntry entry = new ZipEntry(fi.FullName.Substring(strPath.Length + 1)); entry.DateTime = fi.LastWriteTime; entry.Size = fs.Length; zip.PutNextEntry(entry); while ((count = fs.Read(buffer, 0, 2048)) > 0) { zip.Write(buffer, 0, count); } } } } catch { throw; } finally { zip.Finish(); zip.Close(); } return 1; } private static void GetFileList(string strPath, IList<FileInfo> list) { DirectoryInfo di = new DirectoryInfo(strPath); foreach (DirectoryInfo di1 in di.GetDirectories()) { GetFileList(di1.FullName, list); } foreach (FileInfo fi in di.GetFiles()) { list.Add(fi); } } /**//// <summary> /// 解压缩文件 /// </summary> /// <param name="strFileName">压缩文件</param> /// <param name="strPath">目标目录</param> /// <param name="PassWord">密码</param> /// <returns>1 成功 -1输入的压缩文件夹为空 -2 输入的解压缩文件夹目录不存在！-3 文件不存在</returns> public static int UnZip(string strFileName, string strPath, string PassWord) { if (!String.IsNullOrEmpty(strPath)) { //throw new Exception("输入的压缩文件夹为空"); return -1; } if (!Directory.Exists(strPath)) { //throw new Exception("输入的压缩文件夹目录不存在！"); return -2; } if (!File.Exists(strFileName)) { //throw new Exception("文件：" + strFileName + "不存在!"); return -3; } ZipEntry entry; ZipInputStream zis = null; try { zis = new ZipInputStream(File.Open(strFileName, FileMode.Open)); if (!string.IsNullOrEmpty(PassWord)) zis.Password = PassWord; byte[] buffer = new byte[2048]; int count = 0; while ((entry = zis.GetNextEntry()) != null) { CreateDirList(entry.Name, strPath); string strPath1 = strPath + "\\" + entry.Name; using (FileStream streamWriter = File.Create(strPath1)) { while ((count = zis.Read(buffer, 0, 2048)) > 0) { streamWriter.Write(buffer, 0, count); } } File.SetLastWriteTime(strPath1, entry.DateTime); } } catch { throw; } finally { if (zis != null) zis.Close(); } return 1; } private static void CreateDirList(string filename, string basePath) { string dirName = basePath; string[] dirlevelname = filename.Split('\\'); for (int i = 0; i < dirlevelname.Length - 1; i++) { dirName += "\\" + dirlevelname[i]; if (Directory.Exists(dirName)) { continue; } Directory.CreateDirectory(dirName); } }
}