QiFeng.ZWY.Utility/ZipHelper/ZipHelper.cs

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

namespace QiFeng.LMSD.Utility
{
    public static class ZipHelper
    {
        /// <summary>  
        /// 创建压缩方法  
        /// </summary>  
        /// <param name="file">文件目录</param>  
        /// <param name="zipFile">保存目录</param>  
        public static bool CreateZipFile(string file, string zipFile)
        {
            var blnResult = true;

            if (!File.Exists(file))
            {
                blnResult = false;
                throw new FileNotFoundException(string.Format("文件{0}不存在!", file));
            }
            try
            {
                using (var s = new ZipOutputStream(File.Create(zipFile)))
                {
                    s.SetLevel(9); // 压缩级别 0-9  
                    //s.Password = "123"; //Zip压缩文件密码  
                    var buffer = new byte[4096]; //缓冲区大小  

                    var entry = new ZipEntry(Path.GetFileName(file)) { DateTime = DateTime.Now };
                    s.PutNextEntry(entry);
                    using (var fs = File.OpenRead(file))
                    {
                        int sourceBytes;
                        do
                        {
                            sourceBytes = fs.Read(buffer, 0, buffer.Length);
                            s.Write(buffer, 0, sourceBytes);
                        } while (sourceBytes > 0);
                    }

                    s.Finish();
                    s.Close();
                }
            }
            catch (System.Exception ex)
            {
                blnResult = false;
                throw new System.Exception(string.Format("压缩文件{0}时出现异常：{1}", file, ex));
            }

            return blnResult;
        }
        /// <summary>
        /// Zips the specified zip path.
        /// </summary>