Lib.dll文件压缩和解压功能类整理，上传文件或下载文件很常用
C# ICSharpCode.SharpZipLib.dll文件压缩和解压功能类整理，上传文件或下载文件很常用工作中我们很多时候需要进行对文件进行压缩，比较通用的压缩的dll就是ICSharpCode.SharpZipLib.dll，废话不多了，网上也有很多的资料，我将其最常用的两个函数整理了一下，提供了一个通用的类，这样在工作中可以快速的完成压缩和解压缩的动作哦
官网下载地址：http://www.icsharpcode.net/OpenSource/SharpZipLib/Download.aspx
1. 在项目中添加对ICSharpCode.SharpZipLib.dll的引用；
2. 在需要使用到ICSharpCode.SharpZipLib中定义的类的编码界面中将其导入(Imports)
1 using ICSharpCode.SharpZipLib.Zip; 2 using System; 3 using System.IO; 4 5 namespace ZTO.WayBill.Utilities 6 { 7 /// <summary> 8 /// 压缩类 9 /// http://www.cnblogs.com/kissdodog/p/3525295.html 10 11 /// </summary>12 public class ZipHelper13 {14 /// <summary>15 /// 压缩文件夹16 /// </summary>17 /// <param name="source">源目录</param>18 /// <param name="s">ZipOutputStream对象</param>19 public static void ComPRess(string source, ZipOutputStream s)20 {21 string[] filenames = Directory.GetFileSystemEntries(source);22 foreach (string file in filenames)23 {24 if (Directory.Exists(file))25 {26 // 递归压缩子文件夹27 Compress(file, s);28 }29 else30 {31 using (FileStream fs = File.OpenRead(file))32 {33 byte[] buffer = new byte[4 * 1024];34 // 此处去掉盘符，如D:\123\1.txt 去掉D:35 ZipEntry entry = new ZipEntry(file.Replace(Path.GetPathRoot(file), ""));36 entry.DateTime = DateTime.Now;37 s.PutNextEntry(entry);38 int sourceBytes;39 do40 {41 sourceBytes = fs.Read(buffer, 0, buffer.Length);42 s.Write(buffer, 0, sourceBytes);43 } while (sourceBytes > 0);44 }45 }46 }47 }48 49 /// <summary>50 /// 解压缩51 /// </summary>52 /// <param name="sourceFile">压缩包完整路径地址</param>53 /// <param name="targetPath">解压路径是哪里</param>54 /// <returns></returns>55 public static bool Decompress(string sourceFile, string targetPath)56 {57 if (!File.Exists(sourceFile))58 {59 throw new FileNotFoundException(string.Format("未能找到文件 '{0}' ", sourceFile));60 }61 if (!Directory.Exists(targetPath))62 {63 Directory.CreateDirectory(targetPath);64 }65 using (var s = new ZipInputStream(File.OpenRead(sourceFile)))66 {67 ZipEntry theEntry;68 while ((theEntry = s.GetNextEntry()) != null)69 {70 if (theEntry.IsDirectory)71 {72 continue;73 }74 string directorName = Path.Combine(targetPath, Path.GetDirectoryName(theEntry.Name));75 string fileName = Path.Combine(directorName, Path.GetFileName(theEntry.Name));76 if (!Directory.Exists(directorName))77 {78 Directory.CreateDirectory(directorName);79 }80 if (!String.IsNullOrEmpty(fileName))81 {82 using (FileStream streamWriter = File.Create(fileName))83 {84 int size = 4096;85 byte[] data = new byte[size];86 while (size > 0)87 {88 streamWriter.Write(data, 0, size);89 size = s.Read(data, 0, data.Length);90 }91 }92 }93 }94 }95 return true;96 }97 }98 }
