1 /// <summary>
  2     /// 压缩、解压帮助类
  3     /// </summary>
  4     public class ZipHelper
  5     {
  6         #region 单例模式
  7         private volatile static ZipHelper _instance = null;
  8         private static readonly object lockHelper = new object();//线程锁
  9         public static ZipHelper Instance
 10         {
 11             get
 12             {
 13                 if (_instance == null)
 14                 {
 15                     lock (lockHelper)
 16                     {
 17                         if (_instance == null)
 18                         {
 19                             _instance = new ZipHelper();
 20                         }
 21                     }
 22                 }
 23                 return _instance;
 24             }
 25         }
 26         #endregion 单例模式
 27 
 28         #region 构造函数
 29         public ZipHelper()
 30         {
 31 
 32         }
 33         #endregion 构造函数
 34 
 35         #region 方法
 36         /// <summary>
 37         /// 简单压缩方法
 38         /// </summary>
 39         /// <param name="filepath">压缩内容路径</param>
 40         /// <param name="zippath">压缩后文件保存路径</param>
 41         /// <returns></returns>
 42         public bool Compress(string filepath,string zippath)
 43         {
 44             try
 45             {
 46                 if (!Directory.Exists(filepath)) return false;
 47                 CreateDirectory(zippath);
 48                 ZipFile.CreateFromDirectory(filepath, zippath);
 49             }
 50             catch (Exception ex)
 51             {
 52                 string errormes =LogHelper.ToMessage(ex);
 53                 string path = string.Empty;
 54                 path += AppDomain.CurrentDomain.BaseDirectory;
 55                 path += @"log\ZipErrorLog\Zip";
 56                 path += DateTime.Now.ToString("yyyyMMddHHmm");
 57                 path += ".txt";
 58                 LogHelper.Instance.WriteLog(path, errormes);
 59                 return false;
 60             }
 61             return true;
 62         }
 63         /// <summary>
 64         /// 简单解压方法
 65         /// </summary>
 66         /// <param name="zippath">压缩文件所在路径</param>
 67         /// <param name="savepath">解压后保存路径</param>
 68         /// <returns></returns>
 69         public bool DeCompress(string zippath,string savepath)
 70         {
 71             try
 72             {
 73                 if (!Directory.Exists(zippath)) return false;
 74                 ZipFile.ExtractToDirectory(zippath, savepath);
 75             }
 76             catch (Exception ex)
 77             {
 78                 string errormes = LogHelper.ToMessage(ex);
 79                 string path = string.Empty;
 80                 path += AppDomain.CurrentDomain.BaseDirectory;
 81                 path += @"log\ZipErrorLog\DEZip";
 82                 path += DateTime.Now.ToString("yyyyMMddHHmm");
 83                 path += ".txt";
 84                 LogHelper.Instance.WriteLog(path, errormes);
 85                 return false;
 86             }
 87             return true;
 88         }
 89 
 90         /// <summary>
 91         /// 指定目录下压缩指定类型文件
 92         /// </summary>
 93         /// <param name="filepath">指定目录</param>
 94         /// <param name="zippath">压缩后保存路径</param>
 95         /// <param name="folderName">压缩文件内部文件夹名</param>
 96         /// <param name="fileType">指定类型 格式如：*.dll</param>
 97         /// <returns></returns>
 98         public bool Compress(string filepath, string zippath,string folderName,string fileType)
 99         {
100             try
101             {
102                 IEnumerable<string> files =
103               Directory.EnumerateFiles(filepath, fileType);
104                 using (ZipArchive zipArchive =
105                   ZipFile.Open(zippath, ZipArchiveMode.Create))
106                 {
107                     foreach (string file in files)
108                     {
109                         var entryName = System.IO.Path.Combine(folderName, System.IO.Path.GetFileName(file));
110                         zipArchive.CreateEntryFromFile(file, entryName);
111                     }
112                 }
113             }
114             catch (Exception ex)
115             {
116                 string errormes = LogHelper.ToMessage(ex);
117                 string path = string.Empty;
118                 path += AppDomain.CurrentDomain.BaseDirectory;
119                 path += @"log\ZipErrorLog\Zip1";
120                 path += DateTime.Now.ToString("yyyyMMddHHmm");
121                 path += ".txt";
122                 LogHelper.Instance.WriteLog(path, errormes);
123                 return false;
124             }
125             return true;
126         }
127 
128         #region 调用方法
129         /// <summary>
130         /// 创建父级路径
131         /// </summary>
132         /// <param name="infoPath"></param>
133         private void CreateDirectory(string infoPath)
134         {
135             DirectoryInfo directoryInfo = Directory.GetParent(infoPath);
136             if (!directoryInfo.Exists)
137             {
138                 directoryInfo.Create();
139             }
140         }
141 
142         #endregion 
143         #endregion 方法
144     }