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- /*******************************************************************************
- * Copyright(c) 2014 DongkeSoft All rights reserved. / Confidential
- * 类的信息:
- * 1.程序名称:ZipFileClass.cs
- * 2.功能描述:压缩文件
- * 编辑履历:
- * 作者 日期 版本 修改内容
- * 陈晓野 2014/09/04 1.00 新建
- *******************************************************************************/
- using System;
- using System.IO;
- using ICSharpCode.SharpZipLib.Checksums;
- using ICSharpCode.SharpZipLib.Zip;
- namespace Dongke.IBOSS.PRD.Client.AutoUpgrade
- {
- /// <summary>
- /// 解压/压缩文件
- /// </summary>
- public static class ZipFileClass
- {
- /// <summary>
- /// 压缩文件
- /// </summary>
- /// <param name="strFile">文件名</param>
- /// <param name="strZip">压缩文件名</param>
- public static void ZipFile(string strFile, string strZip)
- {
- if (strFile[strFile.Length - 1] != Path.DirectorySeparatorChar)
- strFile += Path.DirectorySeparatorChar;
- using (ZipOutputStream s = new ZipOutputStream(File.Create(strZip)))
- {
- //BZip2OutputStream bZip2 = new BZip2OutputStream(File.Create(strZip));
- //GZipOutputStream gZip = new GZipOutputStream(File.Create(strZip));
- s.SetLevel(7); // 0 - store only to 9 - means best compression
- Zip(strFile, s, strFile);
- s.Finish();
- s.Close();
- }
- }
- /// <summary>
- /// 压缩文件
- /// </summary>
- /// <param name="strFile"></param>
- /// <param name="s"></param>
- /// <param name="staticFile"></param>
- private static void Zip(string strFile, ZipOutputStream s, string staticFile)
- {
- if (strFile[strFile.Length - 1] != Path.DirectorySeparatorChar)
- strFile += Path.DirectorySeparatorChar;
- Crc32 crc = new Crc32();
- string[] filenames = Directory.GetFileSystemEntries(strFile);
- foreach (string file in filenames)
- {
- if (Directory.Exists(file))
- {
- Zip(file, s, staticFile);
- }
- else // 否则直接压缩文件
- {
- //打开压缩文件
- using (FileStream fs = File.OpenRead(file))
- {
- byte[] buffer = new byte[fs.Length];
- fs.Read(buffer, 0, buffer.Length);
- string tempfile = file.Substring(staticFile.LastIndexOf("\\") + 1);
- ZipEntry entry = new ZipEntry(tempfile);
- entry.DateTime = DateTime.Now;
- entry.Size = fs.Length;
- fs.Close();
- crc.Reset();
- crc.Update(buffer);
- entry.Crc = crc.Value;
- s.PutNextEntry(entry);
- s.Write(buffer, 0, buffer.Length);
- }
- }
- }
- }
- /// <summary>
- /// 解压缩文件
- /// </summary>
- /// <param name="TargetFile">目标文件</param>
- /// <param name="fileDir">解压文件</param>
- /// <returns></returns>
- public static string UnZipFile(string TargetFile, string fileDir)
- {
- string rootFile = " ";
- //读取压缩文件(zip文件),准备解压缩
- using (ZipInputStream s = new ZipInputStream(File.OpenRead(TargetFile.Trim())))
- {
- ZipEntry theEntry;
- string path = fileDir;
- //解压出来的文件保存的路径
- string rootDir = " ";
- //根目录下的第一个子文件夹的名称
- while ((theEntry = s.GetNextEntry()) != null)
- {
- rootDir = Path.GetDirectoryName(theEntry.Name);
- //得到根目录下的第一级子文件夹的名称
- if (rootDir.IndexOf("\\") >= 0)
- {
- rootDir = rootDir.Substring(0, rootDir.IndexOf("\\") + 1);
- }
- string dir = Path.GetDirectoryName(theEntry.Name);
- //根目录下的第一级子文件夹的下的文件夹的名称
- string fileName = Path.GetFileName(theEntry.Name);
- //根目录下的文件名称
- if (dir != " ")
- //创建根目录下的子文件夹,不限制级别
- {
- if (!Directory.Exists(fileDir + "\\" + dir))
- {
- path = fileDir + "\\" + dir;
- //在指定的路径创建文件夹
- Directory.CreateDirectory(path);
- }
- }
- else if (dir == " " && fileName != "")
- //根目录下的文件
- {
- path = fileDir;
- rootFile = fileName;
- }
- else if (dir != " " && fileName != "")
- //根目录下的第一级子文件夹下的文件
- {
- if (dir.IndexOf("\\") > 0)
- //指定文件保存的路径
- {
- path = fileDir + "\\" + dir;
- }
- }
- if (dir == rootDir)
- //判断是不是需要保存在根目录下的文件
- {
- path = fileDir + "\\" + rootDir;
- }
- //以下为解压缩zip文件的基本步骤
- //基本思路就是遍历压缩文件里的所有文件,创建一个相同的文件。
- if (fileName != String.Empty)
- {
- using (FileStream streamWriter = File.Create(path + "\\" + fileName))
- {
- int size = 2048;
- byte[] data = new byte[2048];
- while (true)
- {
- size = s.Read(data, 0, data.Length);
- if (size > 0)
- {
- streamWriter.Write(data, 0, size);
- }
- else
- {
- break;
- }
- }
- streamWriter.Close();
- }
- }
- }
- s.Close();
- return rootFile;
- }
- }
- /// <summary>
- /// 压缩文件夹
- /// </summary>
- /// <param name="path">要压缩的目录</param>
- /// <param name="address">输出的压缩文件</param>
- public static void DirectoryToZip(string path, string address)
- {
- // 获取当前文件夹中的所有文件
- string[] filenames = Directory.GetFiles(path);
- Crc32 crc = new Crc32();
- // 创建输出文件
- ZipOutputStream zos = new ZipOutputStream(File.Create(address));
- zos.SetLevel(6);
- // 遍历所有文件
- foreach (string name in filenames)
- {
- FileStream fs = File.OpenRead(name);
- byte[] buffer = new byte[fs.Length];
- // 读取文件
- fs.Read(buffer, 0, Convert.ToInt32(fs.Length));
- // 获取文件的文件名和后缀名
- string file = Path.GetFileName(name);
- // 输出文件的名称
- ZipEntry entry = new ZipEntry(file);
- crc.Reset();
- crc.Update(buffer);
- entry.Crc = crc.Value;
- zos.PutNextEntry(entry);
- zos.Write(buffer, 0, Convert.ToInt32(fs.Length));
- fs.Close();
- }
- zos.Finish();
- zos.Close();
- }
- }
- }
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