397 lines
14 KiB
C#
397 lines
14 KiB
C#
/***
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* Title："基础工具" 项目
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* Title："基础工具" 项目
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* 主题：压缩包帮助类
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* Description：
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* 功能：
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* 1、压缩单个文件
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* 2、压缩多个文件
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* 3、压缩多层目录
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* 4、递归遍历目录
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* 5、解压缩一个 zip 文件
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* 6、获取压缩文件中指定类型的文件
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* 7、获取压缩文件中的所有文件
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* Date：2021
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* Version：0.1版本
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* Author：Coffee
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* Modify Recoder：
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*/
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using ICSharpCode.SharpZipLib.Zip;
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Text;
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namespace Yi.Framework.Common.Helper
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{
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public class ZipHelper
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{
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/// <summary>
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/// 压缩单个文件
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/// </summary>
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/// <param name="fileToZip">要压缩的文件</param>
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/// <param name="zipedFile">压缩后的文件</param>
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/// <param name="compressionLevel">压缩等级</param>
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/// <param name="blockSize">每次写入大小</param>
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public static void ZipFile(string fileToZip, string zipedFile, int compressionLevel, int blockSize)
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{
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//如果文件没有找到，则报错
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if (!File.Exists(fileToZip))
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{
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throw new FileNotFoundException("指定要压缩的文件: " + fileToZip + " 不存在!");
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}
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using (FileStream ZipFile = File.Create(zipedFile))
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{
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using (ZipOutputStream ZipStream = new ZipOutputStream(ZipFile))
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{
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using (FileStream StreamToZip = new FileStream(fileToZip, FileMode.Open, FileAccess.Read))
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{
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string fileName = fileToZip.Substring(fileToZip.LastIndexOf("\\") + 1);
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ZipEntry ZipEntry = new ZipEntry(fileName);
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ZipStream.PutNextEntry(ZipEntry);
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ZipStream.SetLevel(compressionLevel);
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byte[] buffer = new byte[blockSize];
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int sizeRead = 0;
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try
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{
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do
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{
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sizeRead = StreamToZip.Read(buffer, 0, buffer.Length);
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ZipStream.Write(buffer, 0, sizeRead);
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}
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while (sizeRead > 0);
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}
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catch
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{
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}
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StreamToZip.Close();
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}
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ZipStream.Finish();
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ZipStream.Close();
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}
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ZipFile.Close();
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}
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}
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/// <summary>
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/// 压缩单个文件
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/// </summary>
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/// <param name="fileToZip">要进行压缩的文件名</param>
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/// <param name="zipedFile">压缩后生成的压缩文件名</param>
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public static void ZipFile(string fileToZip, string zipedFile)
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{
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//如果文件没有找到，则报错
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if (!File.Exists(fileToZip))
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{
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throw new FileNotFoundException("指定要压缩的文件: " + fileToZip + " 不存在!");
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}
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using (FileStream fs = File.OpenRead(fileToZip))
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{
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byte[] buffer = new byte[fs.Length];
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fs.Read(buffer, 0, buffer.Length);
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fs.Close();
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using (FileStream ZipFile = File.Create(zipedFile))
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{
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using (ZipOutputStream ZipStream = new ZipOutputStream(ZipFile))
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{
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string fileName = fileToZip.Substring(fileToZip.LastIndexOf("\\") + 1);
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ZipEntry ZipEntry = new ZipEntry(fileName);
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ZipStream.PutNextEntry(ZipEntry);
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ZipStream.SetLevel(5);
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ZipStream.Write(buffer, 0, buffer.Length);
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ZipStream.Finish();
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ZipStream.Close();
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}
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}
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}
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}
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/// <summary>
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/// 压缩多个文件到指定路径
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/// </summary>
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/// <param name="sourceFileNames">压缩到哪个路径</param>
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/// <param name="zipFileName">压缩文件名称</param>
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public static void ZipFile(List<string> sourceFileNames, string zipFileName)
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{
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//压缩文件打包
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using (ZipOutputStream s = new ZipOutputStream(File.Create(zipFileName)))
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{
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s.SetLevel(9);
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byte[] buffer = new byte[4096];
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foreach (string file in sourceFileNames)
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{
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if (Directory.Exists(file))// 先当作目录处理如果存在这个目录就递归Copy该目录下面的文件
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{
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string pPath = "";
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pPath += Path.GetFileName(file);
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pPath += "\\";
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ZipSetp(file, s, pPath, sourceFileNames);
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}
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else // 否则直接压缩文件
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{
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ZipEntry entry = new ZipEntry(Path.GetFileName(file));
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entry.DateTime = DateTime.Now;
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s.PutNextEntry(entry);
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using (FileStream fs = File.OpenRead(file))
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{
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int sourceBytes;
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do
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{
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sourceBytes = fs.Read(buffer, 0, buffer.Length);
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s.Write(buffer, 0, sourceBytes);
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} while (sourceBytes > 0);
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}
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}
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}
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s.Finish();
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s.Close();
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}
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}
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/// <summary>
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/// 压缩多层目录
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/// </summary>
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/// <param name="strDirectory">待压缩目录</param>
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/// <param name="zipedFile">压缩后生成的压缩文件名，绝对路径</param>
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public static void ZipFileDirectory(string strDirectory, string zipedFile)
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{
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using (FileStream ZipFile = File.Create(zipedFile))
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{
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using (ZipOutputStream s = new ZipOutputStream(ZipFile))
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{
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s.SetLevel(9);
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ZipSetp(strDirectory, s, "");
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}
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}
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}
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/// <summary>
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/// 压缩多层目录
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/// </summary>
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/// <param name="strDirectory">待压缩目录</param>
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/// <param name="zipedFile">压缩后生成的压缩文件名，绝对路径</param>
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/// <param name="files">指定要压缩的文件列表(完全路径)</param>
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public static void ZipFileDirectory(string strDirectory, string zipedFile, List<string> files)
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{
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using (FileStream ZipFile = File.Create(zipedFile))
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{
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using (ZipOutputStream s = new ZipOutputStream(ZipFile))
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{
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s.SetLevel(9);
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ZipSetp(strDirectory, s, "", files);
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}
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}
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}
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/// <summary>
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/// 递归遍历目录
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/// </summary>
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/// <param name="strDirectory">需遍历的目录</param>
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/// <param name="s">压缩输出流对象</param>
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/// <param name="parentPath">The parent path.</param>
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/// <param name="files">需要压缩的文件</param>
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private static void ZipSetp(string strDirectory, ZipOutputStream s, string parentPath, List<string> files = null!)
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{
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if (strDirectory[strDirectory.Length - 1] != Path.DirectorySeparatorChar)
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{
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strDirectory += Path.DirectorySeparatorChar;
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}
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string[] filenames = Directory.GetFileSystemEntries(strDirectory);
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byte[] buffer = new byte[4096];
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foreach (string file in filenames)// 遍历所有的文件和目录
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{
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if (files != null && !files.Contains(file))
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{
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continue;
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}
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if (Directory.Exists(file))// 先当作目录处理如果存在这个目录就递归Copy该目录下面的文件
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{
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string pPath = parentPath;
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pPath += Path.GetFileName(file);
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pPath += "\\";
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ZipSetp(file, s, pPath, files!);
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}
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else // 否则直接压缩文件
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{
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//打开压缩文件
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string fileName = parentPath + Path.GetFileName(file);
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ZipEntry entry = new ZipEntry(fileName);
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entry.DateTime = DateTime.Now;
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s.PutNextEntry(entry);
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using (FileStream fs = File.OpenRead(file))
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{
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int sourceBytes;
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do
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{
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sourceBytes = fs.Read(buffer, 0, buffer.Length);
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s.Write(buffer, 0, sourceBytes);
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} while (sourceBytes > 0);
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}
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}
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}
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}
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/// <summary>
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/// 解压缩一个 zip 文件。
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/// </summary>
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/// <param name="zipedFile">压缩文件</param>
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/// <param name="strDirectory">解压目录</param>
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/// <param name="password">zip 文件的密码。</param>
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/// <param name="overWrite">是否覆盖已存在的文件。</param>
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public static void UnZip(string zipedFile, string strDirectory, bool overWrite, string password)
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{
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if (strDirectory == "")
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strDirectory = Directory.GetCurrentDirectory();
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if (!strDirectory.EndsWith("\\"))
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strDirectory = strDirectory + "\\";
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using (ZipInputStream s = new ZipInputStream(File.OpenRead(zipedFile)))
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{
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if (password != null)
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{
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s.Password = password;
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}
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ZipEntry theEntry;
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while ((theEntry = s.GetNextEntry()) != null)
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{
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string directoryName = "";
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string pathToZip = "";
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pathToZip = theEntry.Name;
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if (pathToZip != "")
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directoryName = Path.GetDirectoryName(pathToZip) + "\\";
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string fileName = Path.GetFileName(pathToZip);
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Directory.CreateDirectory(strDirectory + directoryName);
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if (fileName != "")
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{
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if (File.Exists(strDirectory + directoryName + fileName) && overWrite || !File.Exists(strDirectory + directoryName + fileName))
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{
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using (FileStream streamWriter = File.Create(strDirectory + directoryName + fileName))
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{
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int size = 2048;
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byte[] data = new byte[2048];
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while (true)
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{
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size = s.Read(data, 0, data.Length);
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if (size > 0)
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streamWriter.Write(data, 0, size);
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else
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break;
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}
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streamWriter.Close();
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}
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}
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}
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}
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s.Close();
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}
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}
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/// <summary>
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/// 解压缩一个 zip 文件。
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/// </summary>
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/// <param name="zipedFile">压缩文件</param>
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/// <param name="strDirectory">解压目录</param>
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/// <param name="overWrite">是否覆盖已存在的文件。</param>
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public static void UnZip(string zipedFile, string strDirectory, bool overWrite)
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{
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UnZip(zipedFile, strDirectory, overWrite, null!);
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}
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/// <summary>
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/// 解压缩一个 zip 文件。
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/// 覆盖已存在的文件。
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/// </summary>
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/// <param name="zipedFile">压缩文件</param>
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/// <param name="strDirectory">解压目录</param>
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public static void UnZip(string zipedFile, string strDirectory)
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{
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UnZip(zipedFile, strDirectory, true);
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}
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/// <summary>
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/// 获取压缩文件中指定类型的文件
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/// </summary>
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/// <param name="zipedFile">压缩文件</param>
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/// <param name="fileExtension">文件类型(.txt|.exe)</param>
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/// <returns>文件名称列表(包含子目录)</returns>
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public static List<string> GetFiles(string zipedFile, List<string> fileExtension)
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{
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List<string> files = new List<string>();
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if (!File.Exists(zipedFile))
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{
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//return files;
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throw new FileNotFoundException(zipedFile);
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}
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using (ZipInputStream s = new ZipInputStream(File.OpenRead(zipedFile)))
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{
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ZipEntry theEntry;
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while ((theEntry = s.GetNextEntry()) != null)
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{
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if (theEntry.IsFile)
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{
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//Console.WriteLine("Name : {0}", theEntry.Name);
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if (fileExtension != null)
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{
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if (fileExtension.Contains(Path.GetExtension(theEntry.Name)))
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{
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files.Add(theEntry.Name);
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}
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}
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else
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{
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files.Add(theEntry.Name);
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}
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}
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}
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s.Close();
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}
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return files;
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}
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/// <summary>
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/// 获取压缩文件中的所有文件
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/// </summary>
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/// <param name="zipedFile">压缩文件</param>
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/// <returns>文件名称列表(包含子目录)</returns>
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public static List<string> GetFiles(string zipedFile)
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{
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return GetFiles(zipedFile, null!);
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}
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}//Class_end
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} |