之前在做c#.net项目的时候需要将文件和文件夹进行压缩和解压缩，于是就从网上找了System.IO.Compression.net原生压缩解压库实现。后面接触得多了，发现压缩解压缩的方式不止这一种，原生写法能够压缩解压缩以外还有SharpZipLib也可以实现同样的效果，故在此把这两种压缩解压缩方式示例代码整理了一下，让首次接触压缩和解压缩的朋友可以少走些弯路。我们首先来讲讲System.IO.Compression库压缩解压。首先需要在项目namespace里引用引用System.IO.Compression命名空间。然后封装一下其中的关于压缩和解压缩的类，方便调用，代码如下。本教程例子代码下载地址 CsZipDemo.zip（密码: 7831），完美支持.net framework和.net core跨平台使用。
ZipFile压缩解压
ZipFile目前仅支持压缩解压zip格式的压缩包。
/// <summary>
/// 压缩文件
/// </summary>
/// <param name="srcPath">源文件文件夹集合</param>
/// <param name="zipPath">压缩后的zip文件</param>
/// <returns></returns>
public static Tuple<bool, string> NativeCompressFile(List<string> srcPath, string zipPath)
{
try
{
//创建临时目录
var tmpPath = $"{AppDomain.CurrentDomain.BaseDirectory}{Guid.NewGuid()}_temp";
if (!Directory.Exists(tmpPath))
{
Directory.CreateDirectory(tmpPath);
}
srcPath.ForEach(s =>
{
if (File.Exists(s))
{
File.Copy(s, $"{tmpPath}\\{Path.GetFileName(s)}");
}
else if (Directory.Exists(s))
{
var tmpDir = new DirectoryInfo(s);
CopyFolder(s, $"{tmpPath}\\{tmpDir.Name}");
}
});
System.IO.Compression.ZipFile.CreateFromDirectory(tmpPath, zipPath);
Directory.Delete(tmpPath, true);
return new Tuple<bool, string>(true, "OK");
}
catch (Exception ex)
{
return new Tuple<bool, string>(false, $"压缩文件时出现异常:{ex.Message}");
}
}
/// <summary>
/// 解压缩文件
/// </summary>
/// <param name="zipFileName">要解压的zip文件</param>
/// <param name="dstDirName">解压目标目录</param>
/// <returns></returns>
public static Tuple<bool, string> NativeDecompressFile(string zipFileName, string dstDirName)
{
try
{
if (!File.Exists(zipFileName))
{
return new Tuple<bool, string>(false, "压缩文件不存在");
}
string directoryName = Path.GetDirectoryName(dstDirName);
if (!Directory.Exists(directoryName))
{
Directory.CreateDirectory(directoryName);
}
System.IO.Compression.ZipFile.ExtractToDirectory(zipFileName, dstDirName);
return new Tuple<bool, string>(true, "OK");
}
catch (Exception ex)
{
return new Tuple<bool, string>(false, $"解压文件时出现异常:{ex.Message}");
}
}
/// <summary>
/// 复制文件夹及文件
/// </summary>
/// <param name="sourceFolder">原文件路径</param>
/// <param name="destFolder">目标文件路径</param>
/// <returns></returns>
private static void CopyFolder(string sourceFolder, string destFolder)
{
try
{
//如果目标路径不存在,则创建目标路径
if (!Directory.Exists(destFolder))
{
Directory.CreateDirectory(destFolder);
}
//得到原文件根目录下的所有文件
string[] files = Directory.GetFiles(sourceFolder);
foreach (string file in files)
{
string name = Path.GetFileName(file);
string dest = Path.Combine(destFolder, name);
// 复制文件
File.Copy(file, dest);
}
//得到原文件根目录下的所有文件夹
string[] folders = Directory.GetDirectories(sourceFolder);
foreach (string folder in folders)
{
string dirName = folder.Split('\\')[folder.Split('\\').Length - 1];
string destfolder = Path.Combine(destFolder, dirName);
// 递归调用
CopyFolder(folder, destfolder);
}
}
catch (Exception ex)
{
throw ex;
}
}SharpZipLib压缩解压
SharpZipLib目前仅支持压缩解压zip格式的压缩包。
/// <summary>
/// SharpZipLib压缩文件
/// </summary>
/// <param name="srcPath">源文件或文件夹</param>
/// <param name="zipFilePath">压缩后的zip文件</param>
public static void ZipLibCompressFile(List<string> srcPath, string zipFilePath)
{
using (ICSharpCode.SharpZipLib.Zip.ZipFile zip = ICSharpCode.SharpZipLib.Zip.ZipFile.Create(zipFilePath))
{
zip.BeginUpdate();
srcPath.ForEach(s =>
{
if (File.Exists(s))
{
zip.Add(s);
}
else if (Directory.Exists(s))
{
zip.AddDirectory(s);
}
});
zip.CommitUpdate();
}
}
/// <summary>
/// SharpZipLib解压缩文件
/// </summary>
/// <param name="zipFilePath">源zip压缩包</param>
/// <param name="dstDirPath"> 解压目录</param>
public static void ZipLibDecompressFile(string zipFilePath, string dstDirPath)
{
(new FastZip()).ExtractZip(zipFilePath, dstDirPath, string.Empty);
}
/// <summary>
/// SharpZipLib附加文件文件夹
/// </summary>
/// <param name="zipFilePath"> 源zip压缩包</param>
/// <param name="appendPath"> 附加的文件、文件夹路径集合</param>
public static void ZipLibAppendObj(string zipFilePath, List<string> appendPath)
{
using (ICSharpCode.SharpZipLib.Zip.ZipFile zip = new ICSharpCode.SharpZipLib.Zip.ZipFile(zipFilePath))
{
zip.BeginUpdate();
appendPath.ForEach(s =>
{
if (File.Exists(s))
{
zip.Add(s);
}
else if (Directory.Exists(s))
{
zip.AddDirectory(s);
}
});
zip.CommitUpdate();
}
}
/// <summary>
/// SharpZipLib删除压缩包内文件文件夹
/// </summary>
/// <param name="zipFilePath">源zip压缩包</param>
/// <param name="deletePath"> 要删除的压缩包内文件、文件夹路径集合 </param>
public static void ZipLibDeleteObj(string zipFilePath, List<string> deletePath)
{
using (ICSharpCode.SharpZipLib.Zip.ZipFile zip = new ICSharpCode.SharpZipLib.Zip.ZipFile(zipFilePath))
{
zip.BeginUpdate();
deletePath.ForEach(s =>
{
if (zip.FindEntry(s, false) >= 0)
{
zip.Delete(s);
}
});
zip.CommitUpdate();
}
}
/// <summary>
/// SharpZipLib查看压缩包内文件
/// </summary>
/// <param name="zipFilePath"> 源zip压缩包 </param
public static List<string> ZipLibViewObj(string zipFilePath)
{
var list = new List<string>();
using (ICSharpCode.SharpZipLib.Zip.ZipFile zip = new ICSharpCode.SharpZipLib.Zip.ZipFile(zipFilePath))
{
foreach (ZipEntry entry in zip)
{
list.Add(entry.Name);
}
}
return list;
}