.net压缩文件（ICSharpCode.SharpZipLib）
NuGet添加引用：ICSharpCode.SharpZipLib.dll
1 /// <summary> 2 /// ZIP:压缩单个文件 3 /// </summary> 4 /// <param name="server_filename">需要压缩的文件（绝对路径）</param> 5 /// <param name="server_save_path">压缩后的文件路径（绝对路径）</param> 6 /// <param name="zipName">压缩后的文件名称（文件名，默认 同源文件同名）</param> 7 /// <param name="CompressionLevel">压缩等级（0 无 - 9 最高，默认 5）</param> 8 /// <param name="BlockSize">缓存大小（每次写入文件大小，默认 2048）</param> 9 /// <param name="IsEncrypt">是否加密（默认 加密）</param> 10 public static void ZipFile(string server_filename, string server_save_path, string zipName = "", int CompressionLevel = 5, int BlockSize = 2048, bool IsEncrypt = false) 11 { 12 //如果文件没有找到，则报错 13 if (!File.Exists(server_filename)) 14 { 15 throw new FileNotFoundException("指定要压缩的文件: " + server_filename + " 不存在!"); 16 } 17 18 //文件名称（默认同源文件名称相同） 19 string ZipFileName = string.IsNullOrEmpty(zipName) ? server_save_path + "\\" + new FileInfo(server_filename).Name.Substring(0, new FileInfo(server_filename).Name.LastIndexOf('.')) + ".zip" : server_save_path + "\\" + zipName + ".zip"; 20 21 using (FileStream ZipFile = File.Create(ZipFileName)) 22 { 23 using (ZipOutputStream ZipStream = new ZipOutputStream(ZipFile)) 24 { 25 using (FileStream StreamToZip = new FileStream(server_filename, FileMode.Open, FileAccess.Read)) 26 { 27 string fileName = server_filename.Substring(server_filename.LastIndexOf("\\") + 1); 28 29 ZipEntry ZipEntry = new ZipEntry(fileName); 30 31 if (IsEncrypt) 32 //压缩文件加密 33 ZipStream.Password = "你的密码"; 34 35 ZipStream.PutNextEntry(ZipEntry); 36 37 //设置压缩级别 38 ZipStream.SetLevel(CompressionLevel); 39 40 //缓存大小 41 byte[] buffer = new byte[BlockSize]; 42 43 int sizeRead = 0; 44 45 try 46 { 47 do 48 { 49 sizeRead = StreamToZip.Read(buffer, 0, buffer.Length); 50 ZipStream.Write(buffer, 0, sizeRead); 51 } 52 while (sizeRead > 0); 53 } 54 catch (System.Exception ex) 55 { 56 throw ex; 57 } 58 59 StreamToZip.Close(); 60 } 61 62 ZipStream.Finish(); 63 ZipStream.Close(); 64 } 65 66 ZipFile.Close(); 67 } 68 } 69 70 /// <summary> 71 /// ZIP:压缩多个文件 72 /// </summary> 73 /// <param name="list_server_fileName">需要压缩的文件（绝对路径）</param> 74 /// <param name="server_zipPath">压缩后的文件路径（绝对路径）</param> 75 /// <param name="zipFileName">压缩后的文件名称（文件名，默认 同源文件同名）</param> 76 /// <param name="CompressionLevel">压缩等级（0 无 - 9 最高，默认 5）</param> 77 /// <param name="BlockSize">缓存大小（每次写入文件大小，默认 2048）</param> 78 /// <param name="IsEncrypt">是否加密（默认 加密）</param> 79 public static void ZipFiles(List<string> list_server_fileName, string server_zipPath, string zipFileName = "", int CompressionLevel = 5, int BlockSize = 2048, bool IsEncrypt = false) 80 { 81 if (list_server_fileName != null && list_server_fileName.Count > 0) 82 { 83 //压缩后的文件路径及名称 84 string ZipFileName = server_zipPath + "\\" + zipFileName + ".zip"; 85 86 using (FileStream ZipFile = File.Create(ZipFileName)) 87 { 88 using (ZipOutputStream ZipStream = new ZipOutputStream(ZipFile)) 89 { 90 if (IsEncrypt) 91 { 92 //压缩文件加密 93 ZipStream.Password = "你的密码"; 94 } 95 96 //设置压缩级别 97 ZipStream.SetLevel(CompressionLevel); 98 99 foreach (var server_fileName in list_server_fileName) 100 { 101 //如果文件没有找到，则报错 102 if (!File.Exists(server_fileName)) 103 throw new FileNotFoundException("指定要压缩的文件: " + list_server_fileName + " 不存在!"); 104 105 using (FileStream StreamToZip = new FileStream(server_fileName, FileMode.Open, FileAccess.Read)) 106 { 107 string fileName = server_fileName.Substring(server_fileName.LastIndexOf("\\") + 1); 108 109 ZipEntry ZipEntry = new ZipEntry(fileName); 110 111 ZipStream.PutNextEntry(ZipEntry); 112 113 //缓存大小 114 byte[] buffer = new byte[BlockSize]; 115 116 int sizeRead = 0; 117 try 118 { 119 do 120 { 121 sizeRead = StreamToZip.Read(buffer, 0, buffer.Length); 122 ZipStream.Write(buffer, 0, sizeRead); 123 } 124 while (sizeRead > 0); 125 } 126 catch (System.Exception ex) 127 { 128 throw ex; 129 } 130 131 StreamToZip.Close(); 132 } 133 } 134 135 ZipStream.Finish(); 136 ZipStream.Close(); 137 } 138 139 ZipFile.Close(); 140 } 141 } 142 }
