c# zip压缩工具类

1. 修正中文乱码

2. 修正linux下全路径压缩

using System;
using System.Diagnostics;
using System.IO;
using System.Runtime.InteropServices;
using System.Text;
using ICSharpCode.SharpZipLib.Checksum;
using ICSharpCode.SharpZipLib.Zip;



namespace XXX.Common
{
    public class ZipHelper
    {

        /// 

        /// 压缩文件
        /// 
        /// 
        /// 
        public static void CreateZip(string sourceFilePath, string destinationZipFilePath)
        {
            //if (sourceFilePath[sourceFilePath.Length - 1] != System.IO.Path.DirectorySeparatorChar)
            //    sourceFilePath += System.IO.Path.DirectorySeparatorChar;
            // 修正全路径压缩1/2
            if (sourceFilePath[sourceFilePath.Length - 1] == System.IO.Path.DirectorySeparatorChar)
            {
                sourceFilePath = sourceFilePath.Substring(0, sourceFilePath.Length - 1);
            }

            // 修正中文乱码
            if (System.Runtime.InteropServices.RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
            {
                Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
                Encoding gbk = Encoding.GetEncoding("gb2312");
                ICSharpCode.SharpZipLib.Zip.ZipConstants.DefaultCodePage = gbk.CodePage;
            }
            else
            {
                Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
                Encoding gbk = Encoding.GetEncoding("gb2312");
                ICSharpCode.SharpZipLib.Zip.ZipConstants.DefaultCodePage = gbk.CodePage;
            }

            ZipOutputStream zipStream = new ZipOutputStream(File.Create(destinationZipFilePath));
            zipStream.SetLevel(6);  // 压缩级别 0-9
            CreateZipFiles(sourceFilePath, zipStream, sourceFilePath);

            zipStream.Finish();
            zipStream.Close();
        }

        /// 

        /// 递归压缩文件
        /// 
        /// 待压缩的文件或文件夹路径
        /// 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
        /// 
        private static void CreateZipFiles(string sourceFilePath, ZipOutputStream zipStream, string staticFile)
        {
            Crc32 crc = new Crc32();
            string[] filesArray = Directory.GetFileSystemEntries(sourceFilePath);
            foreach (string file in filesArray)
            {
                if (Directory.Exists(file))                     //如果当前是文件夹，递归
                {
                    CreateZipFiles(file, zipStream, staticFile);
                }

                else                                            //如果是文件，开始压缩
                {
                    FileStream fileStream = File.OpenRead(file);

                    byte[] buffer = new byte[fileStream.Length];
                    fileStream.Read(buffer, 0, buffer.Length);
                    string tempFile = file.Substring(staticFile.LastIndexOf("\\") + 1);
                    //修正全路径压缩2/2
                    if (System.Runtime.InteropServices.RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
                    {
                        tempFile = file.Substring(staticFile.LastIndexOf("\\") + 1);
                    }
                    else
                    {
                        tempFile = file.Substring(staticFile.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);
                }
            }
        }


    }
}