c# 压缩zip
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该文章引用自: https://blog.csdn.net/luanpeng825485697/article/details/77105045
需要引入ICSharpCode.SharpZipLib.dll链接库
压缩解压库:
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using ICSharpCode.SharpZipLib; using ICSharpCode.SharpZipLib.Zip; using ICSharpCode.SharpZipLib.Checksums; using System.IO; namespace ConsoleApp4 public class ZipHelper #region 压缩 /// <summary> /// 递归压缩文件夹的内部方法 /// </summary> /// <param name="folderToZip">要压缩的文件夹路径</param> /// <param name="zipStream">压缩输出流</param> /// <param name="parentFolderName">此文件夹的上级文件夹</param> /// <returns></returns> public static bool ZipDirectory(string folderToZip, ZipOutputStream zipStream, string parentFolderName) bool result = true; string[] folders, files; ZipEntry ent = null; FileStream fs = null; Crc32 crc = new Crc32(); try ent = new ZipEntry(Path.Combine(parentFolderName, Path.GetFileName(folderToZip) + "/")); 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); ent = new ZipEntry(Path.Combine(parentFolderName, Path.GetFileName(folderToZip) + "/" + Path.GetFileName(file))); 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 result = false; finally if (fs != null) fs.Close(); fs.Dispose(); if (ent != null) ent = null; GC.Collect(); GC.Collect(1); folders = Directory.GetDirectories(folderToZip); foreach (string folder in folders) if (!ZipDirectory(folder, zipStream, folderToZip)) return false; return result; /// <summary> /// 压缩文件夹 /// </summary> /// <param name="folderToZip">要压缩的文件夹路径</param> /// <param name="zipedFile">压缩文件完整路径</param> /// <param name="password">密码</param> /// <returns>是否压缩成功</returns> public static bool ZipDirectory(string folderToZip, string zipedFile, string password) bool result = false; if (!Directory.Exists(folderToZip)) return result; ZipOutputStream zipStream = new ZipOutputStream(File.Create(zipedFile)); zipStream.SetLevel(6); if (!string.IsNullOrEmpty(password)) zipStream.Password = password; result = ZipDirectory(folderToZip, zipStream, ""); zipStream.Finish(); zipStream.Close(); return result; /// <summary> /// 压缩文件夹 /// </summary> /// <param name="folderToZip">要压缩的文件夹路径</param> /// <param name="zipedFile">压缩文件完整路径</param> /// <returns>是否压缩成功</returns> public static bool ZipDirectory(string folderToZip, string zipedFile) bool result = ZipDirectory(folderToZip, zipedFile, null); return result; /// <summary> /// 压缩文件 /// </summary> /// <param name="fileToZip">要压缩的文件全名</param> /// <param name="zipedFile">压缩后的文件名</param> /// <param name="password">密码</param> /// <returns>压缩结果</returns> public static 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(6); 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> /// 压缩文件 /// </summary> /// <param name="fileToZip">要压缩的文件全名</param> /// <param name="zipedFile">压缩后的文件名</param> /// <returns>压缩结果</returns> public static bool ZipFile(string fileToZip, string zipedFile) bool result = ZipFile(fileToZip, zipedFile, null); return result; /// <summary> /// 压缩文件或文件夹 /// </summary> /// <param name="fileToZip">要压缩的路径</param> /// <param name="zipedFile">压缩后的文件名</param> /// <param name="password">密码</param> /// <returns>压缩结果</returns> public static 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> /// 压缩文件或文件夹 /// </summary> /// <param name="fileToZip">要压缩的路径</param> /// <param name="zipedFile">压缩后的文件名</param> /// <returns>压缩结果</returns> public static bool Zip(string fileToZip, string zipedFile) bool result = Zip(fileToZip, zipedFile, null); return result; #endregion #region 解压 /// <summary> /// 解压功能(解压压缩文件到指定目录) /// </summary> /// <param name="fileToUnZip">待解压的文件</param> /// <param name="zipedFolder">指定解压目标目录</param> /// <param name="password">密码</param> /// <returns>解压结果</returns> public static bool UnZip(string fileToUnZip, string zipedFolder, string password) bool result = true; FileStream fs = null; 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; fs = File.Create(fileName); int size = 2048; byte[] data = new byte[size]; while (true) size = fs.Read(data, 0, data.Length); if (size > 0) fs.Write(data, 0, data.Length); else break; catch result = false; finally if (fs != null) fs.Close(); fs.Dispose(); if (zipStream != null) zipStream.Close(); zipStream.Dispose(); if (ent != null) ent = null; GC.Collect(); GC.Collect(1); return result; /// <summary> /// 解压功能(解压压缩文件到指定目录) /// </summary> /// <param name="fileToUnZip">待解压的文件</param> /// <param name="zipedFolder">指定解压目标目录</param> /// <returns>解压结果</returns> public static bool UnZip(string fileToUnZip, string zipedFolder) bool result = UnZip(fileToUnZip, zipedFolder, null); return result; #endregion
方法调用
ZipHelper.ZipDirectory("E:\\test", "E:\\test1.zip"); //压缩文件夹,无密码 ZipHelper.ZipDirectory("E:\\test", "E:\\test1.zip", "123456"); //压缩文件夹,有密码
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