ObjectManager/Common/ZipHelper.cs

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using ICSharpCode.SharpZipLib.Checksums;
using ICSharpCode.SharpZipLib.Zip;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ObjectManager.Common
{

    public class ZipHelper
    {
        /// <summary>
        /// 压缩单个文件
        /// </summary>
        /// <param name="fileToZip">要压缩的文件</param>
        /// <param name="zipedFile">压缩后的文件</param>
        /// <param name="compressionLevel">压缩等级</param>
        /// <param name="blockSize">每次写入大小</param>
        public static void ZipFile(string fileToZip, string zipedFile, int compressionLevel, int blockSize)
        {
            //如果文件没有找到，则报错
            if (!System.IO.File.Exists(fileToZip))
            {
                throw new System.IO.FileNotFoundException("指定要压缩的文件: " + fileToZip + " 不存在!");
            }

            using (System.IO.FileStream ZipFile = System.IO.File.Create(zipedFile))
            {
                using (ZipOutputStream ZipStream = new ZipOutputStream(ZipFile))
                {
                    using (System.IO.FileStream StreamToZip = new System.IO.FileStream(fileToZip, System.IO.FileMode.Open, System.IO.FileAccess.Read))
                    {
                        string fileName = fileToZip.Substring(fileToZip.LastIndexOf("\\") + 1);

                        ZipEntry ZipEntry = new ZipEntry(fileName);

                        ZipStream.PutNextEntry(ZipEntry);

                        ZipStream.SetLevel(compressionLevel);

                        byte[] buffer = new byte[blockSize];

                        int sizeRead = 0;

                        try
                        {
                            do
                            {
                                sizeRead = StreamToZip.Read(buffer, 0, buffer.Length);
                                ZipStream.Write(buffer, 0, sizeRead);
                            }
                            while (sizeRead > 0);
                        }
                        catch (System.Exception ex)
                        {
                            throw ex;
                        }