C#實現多級子目錄Zip壓縮解壓實例
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參考
https://blog.csdn.net/lki_suidongdong/article/details/20942977
重點：
實現多級子目錄的壓縮，類似winrar，可以選擇是否排除基準目錄
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測試代碼
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代碼
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using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.IO; using ICSharpCode.SharpZipLib; using ICSharpCode.SharpZipLib.Zip; #if NETSTANDARD2_0 using ICSharpCode.SharpZipLib.Checksum; #else using ICSharpCode.SharpZipLib.Checksums; #endif ? ? namespace Q.Helper.Zip { ? ? /// <summary> /// 適用與ZIP壓縮 /// </summary> public class ZipHelper { public int Level { get; set; } #region 壓縮 ? ? /// <summary> /// 遞歸壓縮文件夾的內部方法(排除相對路徑) /// </summary> /// <param name="folderToZip">要壓縮的文件夾路徑</param> /// <param name="zipStream">壓縮輸出流</param> /// <param name="parentFolderName">此文件夾的上級文件夾</param> /// <param name="includeFloderName">是否包含目錄名</param> /// <returns></returns> private bool ZipDirectory(string folderToZip, ZipOutputStream zipStream, string parentFolderName, bool createBaseFolder = true) { folderToZip = folderToZip.Replace("\\", "/"); bool result = true; string[] folders, files; ZipEntry ent = null; FileStream fs = null; Crc32 crc = new Crc32(); ? ? try { string entPath = Path.Combine(parentFolderName, Path.GetFileName(folderToZip) + "/").Replace("\\", "/"); if (!createBaseFolder) entPath = entPath.Substring(entPath.IndexOf("/") + 1); if (!string.IsNullOrEmpty(entPath)) { ent = new ZipEntry(entPath); Console.WriteLine(entPath); zipStream.PutNextEntry(ent); zipStream.Flush(); } files = Directory.GetFiles(folderToZip); foreach (string file in files) { fs = File.OpenRead(file); ? ? byte[] buffer = new byte[fs.Length]; fs.Read(buffer, 0, buffer.Length); entPath = Path.Combine(parentFolderName, Path.GetFileName(folderToZip) + "/" + Path.GetFileName(file)).Replace("\\", "/"); if (!createBaseFolder) entPath = entPath.Substring(entPath.IndexOf("/") + 1); Console.WriteLine(entPath); ent = new ZipEntry(entPath); ent.DateTime = DateTime.Now; ent.Size = fs.Length; ? ? fs.Close(); ? ? crc.Reset(); crc.Update(buffer); ? ? ent.Crc = crc.Value; zipStream.PutNextEntry(ent); zipStream.Write(buffer, 0, buffer.Length); } ? ? } catch (Exception ex) { result = false; throw ex; } finally { if (fs != null) { fs.Close(); fs.Dispose(); } if (ent != null) { ent = null; } GC.Collect(); GC.Collect(1); } ? ? folders = Directory.GetDirectories(folderToZip); //多級遞歸時需要記住相對目錄 foreach (string folder in folders) { if (!ZipDirectory(folder, zipStream, Path.Combine(parentFolderName, Path.GetFileName(folderToZip)), createBaseFolder)) return false; } return result; } ? ? /// <summary> /// 壓縮文件夾 /// </summary> /// <param name="folderToZip">要壓縮的文件夾路徑</param> /// <param name="zipedFile">壓縮文件完整路徑</param> /// <param name="password">密碼</param> /// <returns>是否壓縮成功</returns> public bool ZipDirectory(string folderToZip, string zipedFile, string password, bool includeFloderName = true) { bool result = false; if (!Directory.Exists(folderToZip)) return result; ? ? ZipOutputStream zipStream = new ZipOutputStream(File.Create(zipedFile)); zipStream.SetLevel(Level); if (!string.IsNullOrEmpty(password)) zipStream.Password = password; ? ? result = ZipDirectory(folderToZip, zipStream, "", includeFloderName); ? ? zipStream.Finish(); zipStream.Close(); ? ? return result; } ? ? /// <summary> /// 壓縮文件夾 /// </summary> /// <param name="folderToZip">要壓縮的文件夾路徑</param> /// <param name="zipedFile">壓縮文件完整路徑</param> /// <returns>是否壓縮成功</returns> public bool ZipDirectory(string folderToZip, string zipedFile, bool includeFloderName = true) { bool result = ZipDirectory(folderToZip, zipedFile, "", includeFloderName); return result; } ? ? /// <summary> /// 壓縮文件 /// </summary> /// <param name="fileToZip">要壓縮的文件全名</param> /// <param name="zipedFile">壓縮後的文件名</param> /// <param name="password">密碼</param> /// <returns>壓縮結果</returns> public bool ZipFile(string fileToZip, string zipedFile, string password) { bool result = true; ZipOutputStream zipStream = null; FileStream fs = null; ZipEntry ent = null; ? ? if (!File.Exists(fileToZip)) return false; ? ? try { fs = File.OpenRead(fileToZip); byte[] buffer = new byte[fs.Length]; fs.Read(buffer, 0, buffer.Length); fs.Close(); ? ? fs = File.Create(zipedFile); zipStream = new ZipOutputStream(fs); if (!string.IsNullOrEmpty(password)) zipStream.Password = password; ent = new ZipEntry(Path.GetFileName(fileToZip)); zipStream.PutNextEntry(ent); zipStream.SetLevel(Level); ? ? zipStream.Write(buffer, 0, buffer.Length); ? ? } catch { result = false; } finally { if (zipStream != null) { zipStream.Finish(); zipStream.Close(); } if (ent != null) { ent = null; } if (fs != null) { fs.Close(); fs.Dispose(); } } GC.Collect(); GC.Collect(1); ? ? return result; } ? ? /// <summary> /// 壓縮文件 /// </summary> /// <param name="fileToZip">要壓縮的文件全名</param> /// <param name="zipedFile">壓縮後的文件名</param> /// <returns>壓縮結果</returns> public bool ZipFile(string fileToZip, string zipedFile) { bool result = ZipFile(fileToZip, zipedFile, null); return result; } ? ? /// <summary> /// 壓縮文件或文件夾 /// </summary> /// <param name="fileToZip">要壓縮的路徑</param> /// <param name="zipedFile">壓縮後的文件名</param> /// <param name="password">密碼</param> /// <returns>壓縮結果</returns> public bool Zip(string fileToZip, string zipedFile, string password) { bool result = false; if (Directory.Exists(fileToZip)) result = ZipDirectory(fileToZip, zipedFile, password); else if (File.Exists(fileToZip)) result = ZipFile(fileToZip, zipedFile, password); ? ? return result; } ? ? /// <summary> /// 壓縮文件或文件夾 /// </summary> /// <param name="fileToZip">要壓縮的路徑</param> /// <param name="zipedFile">壓縮後的文件名</param> /// <returns>壓縮結果</returns> public bool Zip(string fileToZip, string zipedFile) { bool result = Zip(fileToZip, zipedFile, null); return result; ? ? } ? ? #endregion ? ? #region 解壓 ? ? /// <summary> /// 解壓功能(解壓壓縮文件到指定目錄) /// </summary> /// <param name="fileToUnZip">待解壓的文件</param> /// <param name="zipedFolder">指定解壓目標目錄</param> /// <param name="password">密碼</param> /// <returns>解壓結果</returns> public static bool UnZip(string fileToUnZip, string zipedFolder, string password) { bool result = true; ? ? ZipInputStream zipStream = null; ZipEntry ent = null; string fileName; ? ? if (!File.Exists(fileToUnZip)) return false; ? ? if (!Directory.Exists(zipedFolder)) Directory.CreateDirectory(zipedFolder); ? ? try { zipStream = new ZipInputStream(File.OpenRead(fileToUnZip)); if (!string.IsNullOrEmpty(password)) zipStream.Password = password; while ((ent = zipStream.GetNextEntry()) != null) { if (!string.IsNullOrEmpty(ent.Name)) { fileName = Path.Combine(zipedFolder, ent.Name); fileName = fileName.Replace(‘/‘, ‘\\‘);//change by Mr.HopeGi ? ? if (fileName.EndsWith("\\")) { Directory.CreateDirectory(fileName); continue; } using (FileStream fs = File.Create(fileName)) { int size = 2048; byte[] data = new byte[size]; while (true) { ? ? size = zipStream.Read(data, 0, data.Length); if (size > 0) fs.Write(data, 0, data.Length); else break; } fs.Flush(); ? ? fs.Close(); new FileInfo(fileName).LastWriteTime = ent.DateTime; } ? ? } } } catch { result = false; } finally { ? ? if (zipStream != null) { zipStream.Close(); zipStream.Dispose(); } if (ent != null) { ent = null; } GC.Collect(); GC.Collect(1); } return result; } ? ? /// <summary> /// 解壓功能(解壓壓縮文件到指定目錄) /// </summary> /// <param name="fileToUnZip">待解壓的文件</param> /// <param name="zipedFolder">指定解壓目標目錄</param> /// <returns>解壓結果</returns> public static bool UnZip(string fileToUnZip, string zipedFolder) { bool result = UnZip(fileToUnZip, zipedFolder, null); return result; } ? ? #endregion } } |
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C#實現多級子目錄Zip壓縮解壓實例