C#使用SharpZipLib对文件进行压缩和解压

使用SharpZipLib库

编写SharpZipLibHelper帮助类

using ICSharpCode.SharpZipLib.Zip;namespace SharpZipLib_Project
{public class SharpZipLibHelper{/// <summary>/// 多个文件或文件夹压缩/// </summary>/// <param name="sourcePaths">文件或文件夹名称</param>/// <param name="zipFilePath">压缩文件夹名称</param>public static string CompressFilesAndDirectories(string[] sourcePaths, string zipFilePath){try{using (FileStream fsOut = File.Create(zipFilePath)){using (ZipOutputStream zipStream = new ZipOutputStream(fsOut)){foreach (string sourcePath in sourcePaths){if (Directory.Exists(sourcePath)){CompressDirectoryRecursive(sourcePath, zipStream);}else if (File.Exists(sourcePath)){CompressFile(sourcePath, zipStream);}else{Console.WriteLine($"Path '{sourcePath}' does not exist.");}}}}return "成功";}catch (Exception ex){return ex.Message;}}/// <summary>/// 向压缩文件添加文件/// </summary>/// <param name="sourceFilePath"></param>/// <param name="zipStream"></param>/// <returns></returns>private static string CompressFile(string sourceFilePath, ZipOutputStream zipStream){try{string entryName = Path.GetFileName(sourceFilePath);ZipEntry newEntry = new ZipEntry(entryName);zipStream.PutNextEntry(newEntry);byte[] buffer = new byte[4096];using (FileStream fsIn = File.OpenRead(sourceFilePath)){int sourceBytes;do{sourceBytes = fsIn.Read(buffer, 0, buffer.Length);zipStream.Write(buffer, 0, sourceBytes);} while (sourceBytes > 0);}return "成功";}catch (Exception ex){return ex.Message;}}/// <summary>/// 向压缩文件添加文件夹/// </summary>/// <param name="rootDirectoryPath"></param>/// <param name="currentDirectoryPath"></param>/// <param name="zipStream"></param>/// <returns></returns>private static string CompressDirectoryRecursive(string sourceDirectoryPath, ZipOutputStream zipStream){try{string[] files = Directory.GetFiles(sourceDirectoryPath, "*", SearchOption.AllDirectories);string rootDirectoryName = Path.GetFileName(sourceDirectoryPath);// 添加文件夹本身ZipEntry rootDirectoryEntry = new ZipEntry(rootDirectoryName + "/");zipStream.PutNextEntry(rootDirectoryEntry);// 添加文件夹内的文件和子文件夹foreach (string file in files){string relativePath = Path.GetRelativePath(sourceDirectoryPath, file);ZipEntry newEntry = new ZipEntry(rootDirectoryName + "/" + relativePath);zipStream.PutNextEntry(newEntry);byte[] buffer = new byte[4096];using (FileStream fsIn = File.OpenRead(file)){int sourceBytes;while ((sourceBytes = fsIn.Read(buffer, 0, buffer.Length)) > 0){zipStream.Write(buffer, 0, sourceBytes);}}}return "成功";}catch (Exception ex){return ex.Message;}}/// <summary>/// 解压文件/// </summary>/// <param name="zipFilePath">压缩文件地址</param>/// <param name="extractPath">解压文件夹</param>/// <returns></returns>public static string DecompressFile(string zipFilePath, string extractPath){try{if (!Directory.Exists(extractPath))Directory.CreateDirectory(extractPath);using (FileStream fsIn = new FileStream(zipFilePath, FileMode.Open, FileAccess.Read)){using (ZipInputStream zipStream = new ZipInputStream(fsIn)){ZipEntry entry;while ((entry = zipStream.GetNextEntry()) != null){string entryFileName = Path.Combine(extractPath, entry.Name);string directoryName = Path.GetDirectoryName(entryFileName);if (directoryName.Length > 0 && !Directory.Exists(directoryName))Directory.CreateDirectory(directoryName);if (entry.IsFile){using (FileStream fsOut = File.Create(entryFileName)){byte[] buffer = new byte[4096];int sourceBytes;while ((sourceBytes = zipStream.Read(buffer, 0, buffer.Length)) > 0){fsOut.Write(buffer, 0, sourceBytes);}}}}}}return "成功";}catch (Exception ex){return ex.Message;}}}
}

如何使用工具类

private void button1_Click(object sender, EventArgs e)
{// 压缩文件string[] sourcePaths = { "example.txt", "Example", "example1.txt"};string str = SharpZipLibHelper.CompressFilesAndDirectories(sourcePaths, "example.zip");if (str != "成功"){MessageBox.Show($"压缩失败: {str}");}else{MessageBox.Show("压缩成功!");}
}private void button2_Click(object sender, EventArgs e)
{// 解压缩文件string str = SharpZipLibHelper.DecompressFile("example.zip", "extracted_files");if (str != "成功"){MessageBox.Show($"解压失败: {str}");}else{MessageBox.Show("解压成功!");}
}