WPF文件压缩 发表于 2020-08-11 | 分类于 wpf WPF文件压缩 文件压缩添加依赖1Install-Package ICSharpCode.SharpZipLib.dll -Version 0.85.4.369 工具类123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164using System;using System.IO;using ICSharpCode.SharpZipLib.Checksums;using ICSharpCode.SharpZipLib.Zip;namespace SchoolClient.Utils{ /// <summary> /// Zip 压缩文件 /// </summary> public class ZZip { public ZZip() { } #region 加压方法 /// <summary> /// 功能:压缩文件(暂时只压缩文件夹下一级目录中的文件,文件夹及其子级被忽略) /// </summary> /// <param name="dirPath">被压缩的文件夹夹路径</param> /// <param name="zipFilePath">生成压缩文件的路径,为空则默认与被压缩文件夹同一级目录,名称为:文件夹名+.zip</param> /// <param name="err">出错信息</param> /// <returns>是否压缩成功</returns> public static void ZipFile(string dirPath, string zipFilePath) { ZipOutputStream outstream = new ZipOutputStream(File.Create(zipFilePath)); outstream.SetLevel(6); ZipCompress(dirPath, outstream, zipFilePath); if (outstream != null) { outstream.Finish(); outstream.Close(); } } public static void ZipCompress(string strFile, ZipOutputStream outstream, string staticFile) { if (strFile[strFile.Length - 1] != Path.DirectorySeparatorChar) { strFile += Path.DirectorySeparatorChar; } DirectoryInfo di = new DirectoryInfo(strFile); if (di.Exists) { Crc32 crc = new Crc32(); //获取指定目录下所有文件和子目录文件名称 string[] filenames = Directory.GetFileSystemEntries(strFile); //遍历文件 foreach (string file in filenames) { if (Directory.Exists(file)) { ZipCompress(file, outstream, staticFile); } //否则,直接压缩文件 else { //打开文件 FileStream fs = File.OpenRead(file); //定义缓存区对象 byte[] buffer = new byte[fs.Length]; //通过字符流,读取文件 fs.Read(buffer, 0, buffer.Length); //得到目录下的文件(比如:D:\Debug1\test),test string tempfile = file.Substring(staticFile.LastIndexOf("\\") + 1); ZipEntry entry = new ZipEntry(tempfile); entry.DateTime = DateTime.Now; entry.Size = fs.Length; fs.Close(); crc.Reset(); crc.Update(buffer); entry.Crc = crc.Value; outstream.PutNextEntry(entry); //写文件 outstream.Write(buffer, 0, buffer.Length); } } } } #endregion 加压方法 #region 解压 /// <summary> /// 功能:解压zip格式的文件。 /// </summary> /// <param name="zipFilePath">压缩文件路径</param> /// <param name="unZipDir">解压文件存放路径,为空时默认与压缩文件同一级目录下,跟压缩文件同名的文件夹</param> /// <param name="err">出错信息</param> /// <returns>解压是否成功</returns> public static bool UnZipFile(string zipFilePath, string unZipDir, out string err) { err = ""; if (zipFilePath == string.Empty) { err = "压缩文件不能为空!"; return false; } if (!File.Exists(zipFilePath)) { err = "压缩文件不存在!"; return false; } //解压文件夹为空时默认与压缩文件同一级目录下,跟压缩文件同名的文件夹 if (unZipDir == string.Empty) unZipDir = zipFilePath.Replace(Path.GetFileName(zipFilePath), Path.GetFileNameWithoutExtension(zipFilePath)); if (!unZipDir.EndsWith("//")) unZipDir += "//"; if (!Directory.Exists(unZipDir)) Directory.CreateDirectory(unZipDir); try { using (ZipInputStream s = new ZipInputStream(File.OpenRead(zipFilePath))) { ZipEntry theEntry; while ((theEntry = s.GetNextEntry()) != null) { string directoryName = Path.GetDirectoryName(theEntry.Name); string fileName = Path.GetFileName(theEntry.Name); if (directoryName.Length > 0) { Directory.CreateDirectory(unZipDir + directoryName); } if (!directoryName.EndsWith("//")) directoryName += "//"; if (fileName != String.Empty) { using (FileStream streamWriter = File.Create(unZipDir + theEntry.Name)) { 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; } } } } }//while } } catch (Exception ex) { err = ex.Message; return false; } return true; }//解压结束 #endregion 解压 }} 调用1ZZip.ZipFile(path, zipPath);