[C#] C#解壓縮文件或文件夾

using System; using System.IO; using ICSharpCode.SharpZipLib.Zip; using ICSharpCode.SharpZipLib.GZip; using ICSharpCode.SharpZipLib.BZip2; using ICSharpCode.SharpZipLib.Checksums; using ICSharpCode.SharpZipLib.Zip.Compression; using ICSharpCode.SharpZipLib.Zip.Compression.Streams; namespace DZB { //ZipClass 壓縮文件 public class DZBZipMgr { /// /// 遞歸壓縮文件夾方法 /// /// /// /// private static bool ZipFileDictory(string FolderToZip, ZipOutputStream s, string ParentFolderName) { bool res = true; string[] folders, filenames; ZipEntry entry = null; FileStream fs = null; Crc32 crc = new Crc32(); try { //創建當前文件夾 entry = new ZipEntry(Path.Combine(ParentFolderName, Path.GetFileName(FolderToZip) + "/")); //加上 “/” 纔會當成是文件夾創建 s.PutNextEntry(entry); s.Flush(); //先壓縮文件，再遞歸壓縮文件夾 filenames = Directory.GetFiles(FolderToZip); foreach (string file in filenames) { //打開壓縮文件 fs = File.OpenRead(file); byte[] buffer = new byte[fs.Length]; fs.Read(buffer, 0, buffer.Length); entry = new ZipEntry(Path.Combine(ParentFolderName, Path.GetFileName(FolderToZip) + "/" + Path.GetFileName(file))); 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); } folders = Directory.GetDirectories(FolderToZip); foreach (string folder in folders) { if (!ZipFileDictory(folder, s, Path.Combine(ParentFolderName, Path.GetFileName(FolderToZip)))) { return false; } } return res; } /// /// 壓縮目錄 /// /// 待壓縮的文件夾，全路徑格式 /// 壓縮後的文件名，全路徑格式 /// private static bool ZipFileDictory(string FolderToZip, string ZipedFile, String Password) { bool res; if (!Directory.Exists(FolderToZip)) { return false; } ZipOutputStream s = new ZipOutputStream(File.Create(ZipedFile)); s.SetLevel(6); s.Password = Password; res = ZipFileDictory(FolderToZip, s, ""); s.Finish(); s.Close(); return res; } /// /// 壓縮文件 /// /// 要進行壓縮的文件名 /// 壓縮後生成的壓縮文件名 /// private static bool ZipFile(string FileToZip, string ZipedFile, String Password) { //如果文件沒有找到，則報錯 if (!File.Exists(FileToZip)) { throw new System.IO.FileNotFoundException("指定要壓縮的文件: " + FileToZip + " 不存在!"); } //FileStream fs = null; FileStream ZipFile = null; ZipOutputStream ZipStream = null; ZipEntry ZipEntry = null; bool res = true; try { ZipFile = File.OpenRead(FileToZip); byte[] buffer = new byte[ZipFile.Length]; ZipFile.Read(buffer, 0, buffer.Length); ZipFile.Close(); ZipFile = File.Create(ZipedFile); ZipStream = new ZipOutputStream(ZipFile); ZipStream.Password = Password; ZipEntry = new ZipEntry(Path.GetFileName(FileToZip)); ZipStream.PutNextEntry(ZipEntry); ZipStream.SetLevel(6); ZipStream.Write(buffer, 0, buffer.Length); } catch { res = false; } finally { if (ZipEntry != null) { ZipEntry = null; } if (ZipStream != null) { ZipStream.Finish(); ZipStream.Close(); } if (ZipFile != null) { ZipFile.Close(); ZipFile = null; } GC.Collect(); GC.Collect(1); } return res; } /// /// 壓縮文件 和 文件夾 /// /// 待壓縮的文件或文件夾，全路徑格式 /// 壓縮後生成的壓縮文件名，全路徑格式 /// public static bool Zip(String FileToZip, String ZipedFile, String Password) { if (Directory.Exists(FileToZip)) { return ZipFileDictory(FileToZip, ZipedFile, Password); } else if (File.Exists(FileToZip)) { return ZipFile(FileToZip, ZipedFile, Password); } else { return false; } } /// /// 解壓功能(解壓壓縮文件到指定目錄) /// /// 待解壓的文件 /// 指定解壓目標目錄 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); ///判斷文件路徑是否是文件夾 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); } } } }