文件和文件夹压缩代码,CSharp代码库,德仔网

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【CSharp】文件和文件夹压缩
作者:偶喜欢春天 / 发布于2014/7/2/ 618
用类库ICSharpCode.SharpZipLib.dll

	using System.IO;
	using ICSharpCode.SharpZipLib;
	using ICSharpCode.SharpZipLib.Checksums;
	using ICSharpCode.SharpZipLib.Zip;
	using ICSharpCode.SharpZipLib.GZip;
	using ICSharpCode.SharpZipLib.BZip2;
	using ICSharpCode.SharpZipLib.Zip.Compression;
	using ICSharpCode.SharpZipLib.Zip.Compression.Streams;
	protected void Button1Click(object sender, EventArgs e)
	 {
	 string[] str = new string[1];
	 str[0] = @"E：\9541241560\地学院\";
	 Zip(str);
	 }
	 #region 压缩
	 ///
	 /// 压缩文件,默认目录为当前目录,文件名为当前目录名,压缩级别为6
	 ///
	 /// 要压缩的文件或文件夹
	 public void Zip(params string[] fileOrDirectory)
	 {
	 Zip(6, fileOrDirectory);
	 }
	 ///
	 /// 压缩文件,默认目录为当前目录,文件名为当前目录名
	 ///
	 /// 压缩的级别
	 /// 要压缩的文件或文件夹
	 public void Zip(int zipLevel, params string[] fileOrDirectory)
	 {
	 if (fileOrDirectory == null)
	 return;
	 else if (fileOrDirectory.Length < 1)
	 return;
	 else
	 {
	 string str = fileOrDirectory[0];
	 if (str.EndsWith("\\"))
	 str = str.Substring(0, str.Length - 1);
	 str += ".zip";
	 Zip(str, zipLevel, fileOrDirectory);
	 }
	 }

	 ///
	 /// 压缩文件,默认目录为当前目录
	 ///
	 /// 压缩后的文件
	 /// 压缩的级别
	 /// 要压缩的文件或文件夹
	 public void Zip(string zipedFileName, int zipLevel, params string[] fileOrDirectory)
	 {
	 if (fileOrDirectory == null)
	 return;
	 else if (fileOrDirectory.Length < 1)
	 return;
	 else
	 {
	 string str = fileOrDirectory[0];
	 if (str.EndsWith("\\"))
	 str = str.Substring(0, str.Length - 1);
	 str = str.Substring(0, str.LastIndexOf("\\"));
	 Zip(zipedFileName, str, zipLevel, fileOrDirectory);
	 }
	 }
	 ///
	 /// 压缩文件
	 ///
	 /// 压缩后的文件
	 /// 压缩的级别
	 /// 当前所处目录
	 /// 要压缩的文件或文件夹
	 public void Zip(string zipedFileName, string currentDirectory, int zipLevel, params string[] fileOrDirectory)
	 {
	 ArrayList AllFiles = new ArrayList();
	 //获取所有文件
	 if (fileOrDirectory != null)
	 {
	 for (int i = 0; i < fileOrDirectory.Length; i++)
	 {
	 if (File.Exists(fileOrDirectory[i]))
	 AllFiles.Add(fileOrDirectory[i]);
	 else if (Directory.Exists(fileOrDirectory[i]))
	 GetDirectoryFile(fileOrDirectory[i], AllFiles);
	 }
	 }
	 if (AllFiles.Count < 1)
	 return;
	 ZipOutputStream zipedStream = new ZipOutputStream(File.Create(zipedFileName));
	 zipedStream.SetLevel(zipLevel);
	 for (int i = 0; i < AllFiles.Count; i++)
	 {
	 string file = AllFiles[i].ToString();
	 FileStream fs;
	 //打开要压缩的文件
	 try
	 {
	 fs = File.OpenRead(file);
	 }
	 catch
	 {
	 continue;
	 }
	 try
	 {
	 byte[] buffer = new byte[fs.Length];
	 fs.Read(buffer, 0, buffer.Length);
	 //新建一个entry
	 string fileName = file.Replace(currentDirectory, "");
	 if (fileName.StartsWith("\\"))
	 fileName = fileName.Substring(1);
	 ZipEntry entry = new ZipEntry(fileName);
	 entry.DateTime = DateTime.Now;
	 //保存到zip流
	 fs.Close();
	 zipedStream.PutNextEntry(entry);
	 zipedStream.Write(buffer, 0, buffer.Length);
	 }
	 catch
	 {
	 }
	 finally
	 {
	 fs.Close();
	 fs.Dispose();
	 }
	 }
	 zipedStream.Finish();
	 zipedStream.Close();
	 }

	 ///
	 /// 压缩文件夹
	 ///
	 /// 当前所在的文件夹
	 public void ZipDirectory(string curretnDirectory)
	 {
	 if (curretnDirectory == null)
	 return;
	 string dir = curretnDirectory;
	 if (dir.EndsWith("\\"))
	 dir = dir.Substring(0, dir.Length - 1);
	 string file = dir.Substring(dir.LastIndexOf("\\") + 1) + ".zip";
	 dir += "\\" + file;
	 Zip(dir, 6, curretnDirectory);
	 }

	 ///
	 /// 压缩文件夹
	 ///
	 /// 当前所在的文件夹
	 public void ZipDirectory(string curretnDirectory, int zipLevel)
	 {
	 if (curretnDirectory == null)
	 return;
	 string dir = curretnDirectory;
	 if (dir.EndsWith("\\"))
	 dir = dir.Substring(0, dir.Length - 1);
	 dir += ".zip";
	 Zip(dir, zipLevel, curretnDirectory);
	 }

	 //递归获取一个目录下的所有文件
	 private void GetDirectoryFile(string parentDirectory, ArrayList toStore)
	 {
	 string[] files = Directory.GetFiles(parentDirectory);
	 for (int i = 0; i < files.Length; i++)
	 toStore.Add(files[i]);
	 string[] directorys = Directory.GetDirectories(parentDirectory);
	 for (int i = 0; i < directorys.Length; i++)
	 GetDirectoryFile(directorys[i], toStore);
	 }
	 #endregion
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