public static void UnZip(string FileToUpZip, string ZipedFolder, string Password) { if (!File.Exists(FileToUpZip)) { return; } if (!Directory.Exists(ZipedFolder)) { Directory.CreateDirectory(ZipedFolder); } ZipInputStream s = null; ZipEntry theEntry = null; string fileName; FileStream streamWriter = null; try { s = new ZipInputStream(File.OpenRead(FileToUpZip)); s.Password = Password; while ((theEntry = s.GetNextEntry()) != null) { if (theEntry.Name != String.Empty) { fileName = Path.Combine(ZipedFolder, theEntry.Name); 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); } }
/// <summary> /// Make a new <see cref="ZipEntry"></see> for a directory. /// </summary> /// <param name="directoryName">The raw untransformed name for the new directory</param> /// <param name="useFileSystem">If true entry detail is retrieved from the file system if the file exists.</param> /// <returns>Returns a new <see cref="ZipEntry"></see> representing a directory.</returns> public ZipEntry MakeDirectoryEntry(string directoryName, bool useFileSystem) { ZipEntry result = new ZipEntry(nameTransform_.TransformDirectory(directoryName)); result.IsUnicodeText = isUnicodeText_; result.Size = 0; int externalAttributes = 0; DirectoryInfo di = null; if (useFileSystem) { di = new DirectoryInfo(directoryName); } if ((di != null) && di.Exists) { switch (timeSetting_) { case TimeSetting.CreateTime: result.DateTime = di.CreationTime; break; case TimeSetting.CreateTimeUtc: #if NETCF_1_0 || NETCF_2_0 result.DateTime = di.CreationTime.ToUniversalTime(); #else result.DateTime = di.CreationTimeUtc; #endif break; case TimeSetting.LastAccessTime: result.DateTime = di.LastAccessTime; break; case TimeSetting.LastAccessTimeUtc: #if NETCF_1_0 || NETCF_2_0 result.DateTime = di.LastAccessTime.ToUniversalTime(); #else result.DateTime = di.LastAccessTimeUtc; #endif break; case TimeSetting.LastWriteTime: result.DateTime = di.LastWriteTime; break; case TimeSetting.LastWriteTimeUtc: #if NETCF_1_0 || NETCF_2_0 result.DateTime = di.LastWriteTime.ToUniversalTime(); #else result.DateTime = di.LastWriteTimeUtc; #endif break; case TimeSetting.Fixed: result.DateTime = fixedDateTime_; break; default: throw new ZipException("Unhandled time setting in MakeDirectoryEntry"); } externalAttributes = ((int)di.Attributes & getAttributes_); } else { if (timeSetting_ == TimeSetting.Fixed) { result.DateTime = fixedDateTime_; } } // Always set directory attribute on. externalAttributes |= (setAttributes_ | 16); result.ExternalFileAttributes = externalAttributes; return(result); }
private static bool ZipFileDictory(string FolderToZip, ZipOutputStream s, string ParentFolderName, bool separate, string[] files, string[] dirs) { bool res = true; string[] folders, filenames; ZipEntry entry = null; FileStream fs = null; Crc32 crc = new Crc32(); try { //创建当前文件夹 entry = new ZipEntry(Path.Combine(ParentFolderName, Path.GetFileName(FolderToZip) + "/")); //加上 “/” 才会当成是文件夹创建 s.PutNextEntry(entry); s.Flush(); //先压缩文件,再递归压缩文件夹 if (separate) { filenames = files; } else { filenames = Directory.GetFiles(FolderToZip); } foreach (string file in filenames) { //打开压缩文件 fs = File.OpenRead(file); byte[] buffer = new byte[fs.Length]; fs.Read(buffer, 0, buffer.Length); string p = Path.GetFileName(FolderToZip); if (p.Length < 1) { p = Path.GetFileName(file); } else { p += "/" + Path.GetFileName(file); } entry = new ZipEntry(Path.Combine(ParentFolderName, p)); 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); } } catch { res = false; } finally { if (fs != null) { fs.Close(); fs = null; } if (entry != null) { entry = null; } GC.Collect(); GC.Collect(1); } if (separate) { folders = dirs; } else { folders = Directory.GetDirectories(FolderToZip); } foreach (string folder in folders) { if (folder.Equals(BackUpPath, StringComparison.CurrentCultureIgnoreCase)) { continue; } else if (!ZipFileDictory(folder, s, Path.Combine(ParentFolderName, Path.GetFileName(FolderToZip)), false, null, null)) { return(false); } } return(res); }
/// <summary> /// Make a new <see cref="ZipEntry"/> from a name. /// </summary> /// <param name="fileName">The name of the file to create a new entry for.</param> /// <param name="useFileSystem">If true entry detail is retrieved from the file system if the file exists.</param> /// <returns>Returns a new <see cref="ZipEntry"/> based on the <paramref name="fileName"/>.</returns> public ZipEntry MakeFileEntry(string fileName, bool useFileSystem) { ZipEntry result = new ZipEntry(nameTransform_.TransformFile(fileName)); result.IsUnicodeText = isUnicodeText_; int externalAttributes = 0; bool useAttributes = (setAttributes_ != 0); FileInfo fi = null; if (useFileSystem) { fi = new FileInfo(fileName); } if ((fi != null) && fi.Exists) { switch (timeSetting_) { case TimeSetting.CreateTime: result.DateTime = fi.CreationTime; break; case TimeSetting.CreateTimeUtc: #if NETCF_1_0 || NETCF_2_0 result.DateTime = fi.CreationTime.ToUniversalTime(); #else result.DateTime = fi.CreationTimeUtc; #endif break; case TimeSetting.LastAccessTime: result.DateTime = fi.LastAccessTime; break; case TimeSetting.LastAccessTimeUtc: #if NETCF_1_0 || NETCF_2_0 result.DateTime = fi.LastAccessTime.ToUniversalTime(); #else result.DateTime = fi.LastAccessTimeUtc; #endif break; case TimeSetting.LastWriteTime: result.DateTime = fi.LastWriteTime; break; case TimeSetting.LastWriteTimeUtc: #if NETCF_1_0 || NETCF_2_0 result.DateTime = fi.LastWriteTime.ToUniversalTime(); #else result.DateTime = fi.LastWriteTimeUtc; #endif break; case TimeSetting.Fixed: result.DateTime = fixedDateTime_; break; default: throw new ZipException("Unhandled time setting in MakeFileEntry"); } result.Size = fi.Length; useAttributes = true; externalAttributes = ((int)fi.Attributes & getAttributes_); } else { if (timeSetting_ == TimeSetting.Fixed) { result.DateTime = fixedDateTime_; } } if (useAttributes) { externalAttributes |= setAttributes_; result.ExternalFileAttributes = externalAttributes; } return(result); }