C#执行zip文件压缩的几种方法及我遇到的坑总结
工作项目中需要用到zip压缩解压缩文件,一开始看上了Ionic.Zip.dll这个类库,操作方便,写法简单
对应有个ziphelper类
1 using Ionic.Zip; 2 3 public static class ZipHelper 4 { 5 6 public static void UnZip(string zipPath, string outPath) 7 { 8 try 9 { 10 using (ZipFile zip = ZipFile.Read(zipPath)) 11 { 12 foreach (ZipEntry entry in zip) 13 { 14 entry.Extract(outPath, ExtractExistingFileAction.OverwriteSilently); 15 } 16 } 17 } 18 catch(Exception ex) 19 { 20 File.WriteAllText(System.Web.HttpContext.Current.Server.MapPath("/1.txt"),ex.Message + "\r\n" + ex.StackTrace); 21 } 22 } 23 /// <summary> 24 /// 递归子目录时调用 25 /// ZipHelper.Zip(files, path + model.CName + "/" + siteid + ".zip", path + model.CName + "/"); 26 /// ZipHelper.ZipDir( path + model.CName + "/" + siteid + ".zip", path + model.CName + "/", path + model.CName + "/"); 27 /// </summary> 28 /// <param name="savefileName">要保存的文件名</param> 29 /// <param name="childPath">要遍历的目录</param> 30 /// <param name="startPath">压缩包起始目录结尾必须反斜杠</param> 31 32 public static void ZipDir(string savefileName, string childPath, string startPath) 33 { 34 DirectoryInfo di = new DirectoryInfo(childPath); 35 if (di.GetDirectories().Length > 0) //有子目录 36 { 37 foreach (DirectoryInfo dirs in di.GetDirectories()) 38 { 39 string[] n = Directory.GetFiles(dirs.FullName, "*"); 40 Zip(n, savefileName, startPath); 41 ZipDir(savefileName, dirs.FullName, startPath); 42 } 43 } 44 } 45 /// <summary> 46 /// 压缩zip 47 /// </summary> 48 /// <param name="fileToZips">文件路径集合</param> 49 /// <param name="zipedFile">想要压成zip的文件名</param> 50 /// <param name="fileDirStart">文件夹起始目录结尾必须反斜杠</param> 51 public static void Zip(string[] fileToZips, string zipedFile,string fileDirStart) 52 { 53 using (ZipFile zip = new ZipFile(zipedFile, Encoding.UTF8)) 54 { 55 foreach (string fileToZip in fileToZips) 56 { 57 string fileName = fileToZip.Substring(fileToZip.LastIndexOf("\\", StringComparison.Ordinal) + 1); 58 zip.AddFile(fileToZip, fileToZip.Replace(fileDirStart, "").Replace(fileName, "")); 59 //zip.AddFile(fileToZip, fileToZip.Replace(fileDirStart, "").Replace(fileName, "")); 60 //using (var fs = new FileStream(fileToZip, FileMode.Open, FileAccess.ReadWrite)) 61 //{ 62 // var buffer = new byte[fs.Length]; 63 // fs.Read(buffer, 0, buffer.Length); 64 // string fileName = fileToZip.Substring(fileToZip.LastIndexOf("\\", StringComparison.Ordinal) + 1); 65 // zip.AddEntry(fileName, buffer); 66 //} 67 } 68 zip.Save(); 69 } 70 } 71 72 public static void ZipOneFile(string from, string zipedFile, string to) 73 { 74 using (ZipFile zip = new ZipFile(zipedFile, Encoding.UTF8)) 75 { 76 zip.AddFile(from, to); 77 zip.Save(); 78 } 79 } 80 81 }
使用方法:
string path = Request.MapPath("/");
string[] files = Directory.GetFiles(path, "*");
ZipHelper.Zip(files, path + "1.zip", path);//压缩path下的所有文件
ZipHelper.ZipDir(path + "1.zip", path, path);//递归压缩path下的文件夹里的文件
ZipHelper.UnZip(Server.MapPath("/") + "lgs.zip", Server.MapPath("/"));//解压缩
正常情况下这个使用是不会有问题的,我一直在用,不过我遇到了一个变态问题,服务器端为了安全需求,禁用了File.Move方法,然后这个类库解压缩时采用了重命名方案,然后很尴尬的执行失败,困扰了我大半年时间,一直不知道原因,不过因为这个bug时隐时现,在 个别服务器上出现,所以一直没有解决,总算最近发现问题了。
于是我想干脆不用zip压缩了,直接调用服务器上的WinRar,这个问题显而易见,服务器如果没有安装,或者不给权限同样无法使用,我就遇到了,不过给个操作方法代码
1 public class WinRarHelper 2 { 3 public WinRarHelper() 4 { 5 6 } 7 8 static WinRarHelper() 9 { 10 //判断是否安装了WinRar.exe 11 RegistryKey key = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\WinRAR.exe"); 12 _existSetupWinRar = !string.IsNullOrEmpty(key.GetValue(string.Empty).ToString()); 13 14 //获取WinRar.exe路径 15 _winRarPath = key.GetValue(string.Empty).ToString(); 16 } 17 18 static bool _existSetupWinRar; 19 /// <summary> 20 /// 获取是否安装了WinRar的标识 21 /// </summary> 22 public static bool ExistSetupWinRar 23 { 24 get { return _existSetupWinRar; } 25 } 26 27 static string _winRarPath; 28 /// <summary> 29 /// 获取WinRar.exe路径 30 /// </summary> 31 public static string WinRarPath 32 { 33 get { return _winRarPath; } 34 } 35 36 #region 压缩到.rar,这个方法针对目录压缩 37 /// <summary> 38 /// 压缩到.rar,这个方法针对目录压缩 39 /// </summary> 40 /// <param name="intputPath">输入目录</param> 41 /// <param name="outputPath">输出目录</param> 42 /// <param name="outputFileName">输出文件名</param> 43 public static void CompressRar(string intputPath, string outputPath, string outputFileName) 44 { 45 //rar 执行时的命令、参数 46 string rarCmd; 47 //启动进程的参数 48 ProcessStartInfo processStartInfo = new ProcessStartInfo(); 49 //进程对象 50 Process process = new Process(); 51 try 52 { 53 if (!ExistSetupWinRar) 54 { 55 throw new ArgumentException("请确认服务器上已安装WinRar应用!"); 56 } 57 //判断输入目录是否存在 58 if (!Directory.Exists(intputPath)) 59 { 60 throw new ArgumentException("指定的要压缩目录不存在!"); 61 } 62 //命令参数 uxinxin修正参数压缩文件到当前目录,而不是从盘符开始 63 rarCmd = " a " + outputFileName + " " + "./" + " -r"; 64 //rarCmd = " a " + outputFileName + " " + outputPath + " -r"; 65 //创建启动进程的参数 66 //指定启动文件名 67 processStartInfo.FileName = WinRarPath; 68 //指定启动该文件时的命令、参数 69 processStartInfo.Arguments = rarCmd; 70 //指定启动窗口模式:隐藏 71 processStartInfo.WindowStyle = ProcessWindowStyle.Hidden; 72 //指定压缩后到达路径 73 processStartInfo.WorkingDirectory = outputPath; 74 //创建进程对象 75 76 //指定进程对象启动信息对象 77 process.StartInfo = processStartInfo; 78 //启动进程 79 process.Start(); 80 //指定进程自行退行为止 81 process.WaitForExit(); 82 //Uxinxin增加的清理关闭,不知道是否有效 83 process.Close(); 84 process.Dispose(); 85 } 86 catch (Exception ex) 87 { 88 throw ex; 89 } 90 finally 91 { 92 process.Close(); 93 process.Dispose(); 94 95 } 96 } 97 #endregion 98 99 #region 解压.rar 100 /// <summary> 101 /// 解压.rar 102 /// </summary> 103 /// <param name="inputRarFileName">输入.rar</param> 104 /// <param name="outputPath">输出目录</param> 105 public static void UnCompressRar(string inputRarFileName, string outputPath) 106 { 107 //rar 执行时的命令、参数 108 string rarCmd; 109 //启动进程的参数 110 ProcessStartInfo processStartInfo = new ProcessStartInfo(); 111 //进程对象 112 Process process = new Process(); 113 try 114 { 115 if (!ExistSetupWinRar) 116 { 117 throw new ArgumentException("请确认服务器上已安装WinRar应用!"); 118 } 119 //如果压缩到目标路径不存在 120 if (!Directory.Exists(outputPath)) 121 { 122 //创建压缩到目标路径 123 Directory.CreateDirectory(outputPath); 124 } 125 rarCmd = "x " + inputRarFileName + " " + outputPath + " -y"; 126 127 128 processStartInfo.FileName = WinRarPath; 129 processStartInfo.Arguments = rarCmd; 130 processStartInfo.WindowStyle = ProcessWindowStyle.Hidden; 131 processStartInfo.WorkingDirectory = outputPath; 132 133 134 process.StartInfo = processStartInfo; 135 process.Start(); 136 process.WaitForExit(); 137 process.Close(); 138 process.Dispose(); 139 } 140 catch (Exception ex) 141 { 142 throw ex; 143 } 144 finally 145 { 146 process.Close(); 147 process.Dispose(); 148 } 149 } 150 #endregion 151 152 #region 将传入的文件列表压缩到指定的目录下 153 /// <summary> 154 /// 将传入的文件列表压缩到指定的目录下 155 /// </summary> 156 /// <param name="sourceFilesPaths">要压缩的文件路径列表</param> 157 /// <param name="compressFileSavePath">压缩文件存放路径</param> 158 /// <param name="compressFileName">压缩文件名(全名)</param> 159 public static void CompressFilesToRar(List<string> sourceFilesPaths, string compressFileSavePath, string compressFileName) 160 { 161 //rar 执行时的命令、参数 162 string rarCmd; 163 //启动进程的参数 164 ProcessStartInfo processStartInfo = new ProcessStartInfo(); 165 //创建进程对象 166 //进程对象 167 Process process = new Process(); 168 try 169 { 170 if (!ExistSetupWinRar) 171 { 172 throw new ArgumentException("Not setuping the winRar, you can Compress.make sure setuped winRar."); 173 } 174 //判断输入文件列表是否为空 175 if (sourceFilesPaths == null || sourceFilesPaths.Count < 1) 176 { 177 throw new ArgumentException("CompressRar'arge : sourceFilesPaths cannot be null."); 178 } 179 rarCmd = " a -ep1 -ap " + compressFileName; 180 //-ep1 -ap表示压缩时不保留原有文件的路径,都压缩到压缩包中即可,调用winrar命令内容可以参考我转载的另一篇文章:教你如何在DOS(cmd)下使用WinRAR压缩文件 181 foreach (object filePath in sourceFilesPaths) 182 { 183 rarCmd += " " + filePath.ToString(); //每个文件路径要与其他的文件用空格隔开 184 } 185 //rarCmd += " -r"; 186 //创建启动进程的参数 187 188 //指定启动文件名 189 processStartInfo.FileName = WinRarPath; 190 //指定启动该文件时的命令、参数 191 processStartInfo.Arguments = rarCmd; 192 //指定启动窗口模式:隐藏 193 processStartInfo.WindowStyle = ProcessWindowStyle.Hidden; 194 //指定压缩后到达路径 195 processStartInfo.WorkingDirectory = compressFileSavePath; 196 197 //指定进程对象启动信息对象 198 process.StartInfo = processStartInfo; 199 //启动进程 200 process.Start(); 201 //指定进程自行退行为止 202 process.WaitForExit(); 203 process.Close(); 204 process.Dispose(); 205 } 206 catch (Exception ex) 207 { 208 throw ex; 209 } 210 finally 211 { 212 process.Close(); 213 process.Dispose(); 214 } 215 } 216 #endregion 217 }
调用方法:
if (WinRarHelper.ExistSetupWinRar)
{
try
{
WinRarHelper.CompressRar(Server.MapPath("/"), Server.MapPath("/"), "1.zip");
Response.Write("压缩完成!" + DateTime.Now);
}
catch (Win32Exception e1)
{
Response.Write(e1.Message + "<br>" + "服务器端禁止是我们网站使用WinRar应用执行!<br>");
}
catch (Exception e1)
{
Response.Write(e1.Message + "<br>" + e1.StackTrace);
}
if (WinRarHelper.ExistSetupWinRar)
{
try
{
WinRarHelper.UnCompressRar(Server.MapPath("/") + "lgs.zip", Server.MapPath("/"));
Response.Write("解压缩完成!" + DateTime.Now);
}
catch (Win32Exception e1)
{
Response.Write(e1.Message + "<br>" + "服务器端禁止是我们网站使用WinRar应用执行!<br>");
}
catch (Exception e1)
{
Response.Write(e1.Message);
}
}
最后我找到了一个解压的时候不用重命名方法的,还好服务器对解压没限制
ICSharpCode.SharpZipLib.dll 用到这个文件
参考来自http://www.cnblogs.com/yuangang/p/5581391.html
具体我也不写了,就看参考网站吧,我也没改代码,不错,记录一下,花了我整整一天折腾这玩意儿!