C# 压缩文件 ICSharpCode.SharpZipLib.dll

public ActionResult Index()
{
//路径
string path = "E:/test/xls_Z";
//调用
CreateZip(path ,path + ".zip");
}

/// <summary>
/// 压缩文件
/// </summary>
/// <param name="sourceFilePath">文件路径</param>
/// <param name="destinationZipFilePath">压缩后的地址</param>
public static void CreateZip(string sourceFilePath, string destinationZipFilePath)
{
if (sourceFilePath[sourceFilePath.Length - 1] != System.IO.Path.DirectorySeparatorChar)
sourceFilePath += System.IO.Path.DirectorySeparatorChar;
ZipOutputStream zipStream = new ZipOutputStream(System.IO.File.Create(destinationZipFilePath));
zipStream.SetLevel(6);  // 压缩级别 0-9
CreateZipFiles(sourceFilePath, zipStream);
zipStream.Finish();
zipStream.Close();
}

/// <summary>
/// 递归压缩文件
/// </summary>
/// <param name="sourceFilePath">待压缩的文件或文件夹路径</param>
/// <param name="zipStream">打包结果的zip文件路径（类似 D:\WorkSpace\a.zip）,全路径包括文件名和.zip扩展名
/// <param name="staticFile"></param>
private static void CreateZipFiles(string sourceFilePath, ZipOutputStream zipStream)
{
Crc32 crc = new Crc32();
string[] filesArray = Directory.GetFileSystemEntries(sourceFilePath);
foreach (string file in filesArray)
{
　　　　 //如果当前是文件夹，递归
if (Directory.Exists(file))
{
CreateZipFiles(file, zipStream);
}
　　　　 //如果是文件，开始压缩
else
{
FileStream fileStream = System.IO.File.OpenRead(file);
byte[] buffer = new byte[fileStream.Length];
fileStream.Read(buffer, 0, buffer.Length);
string tempFile = file.Substring(sourceFilePath.LastIndexOf("\\") + 1);
ZipEntry entry = new ZipEntry(tempFile);
entry.DateTime = DateTime.Now;
entry.Size = fileStream.Length;
fileStream.Close();
crc.Reset();
crc.Update(buffer);
entry.Crc = crc.Value;
zipStream.PutNextEntry(entry);
zipStream.Write(buffer, 0, buffer.Length);
}
}
}