C#压缩帮助类（SharpZipLib）

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2023年12月29日 16:28 本文热度 562
一、SharpZipLib官网

NuGet Gallery | SharpZipLib 1.3.2
API Documentation | SharpZipLib Help (icsharpcode.github.io)
二、压缩帮助类

  /***
  *    Title："基础工具" 项目
  *    Title："基础工具" 项目
  *     主题：压缩包帮助类
  *    Description：
  *     功能：
  *         1、压缩单个文件
  *         2、压缩多个文件
  *         3、压缩多层目录
*         4、递归遍历目录
*         5、解压缩一个 zip 文件
*         6、获取压缩文件中指定类型的文件
*         7、获取压缩文件中的所有文件
*    Date：2021
*    Version：0.1版本
*    Author：Coffee
*    Modify Recoder：
*/

using ICSharpCode.SharpZipLib.Zip;
using System;
using System.Collections.Generic;
using System.IO;
using System.Text;

namespace Utils.Zip
{
    class ZipHelper2
    {
        /// <summary>
        /// 压缩单个文件
        /// </summary>
        /// <param name="fileToZip">要压缩的文件</param>
        /// <param name="zipedFile">压缩后的文件</param>
        /// <param name="compressionLevel">压缩等级</param>
        /// <param name="blockSize">每次写入大小</param>
        public static void ZipFile(string fileToZip, string zipedFile, int compressionLevel, int blockSize)
        {
            //如果文件没有找到，则报错
            if (!System.IO.File.Exists(fileToZip))
            {
                throw new System.IO.FileNotFoundException("指定要压缩的文件: " + fileToZip + " 不存在!");
            }

            using (System.IO.FileStream ZipFile = System.IO.File.Create(zipedFile))
            {
                using (ZipOutputStream ZipStream = new ZipOutputStream(ZipFile))
                {
                    using (System.IO.FileStream StreamToZip = new System.IO.FileStream(fileToZip, System.IO.FileMode.Open, System.IO.FileAccess.Read))
                    {
                        string fileName = fileToZip.Substring(fileToZip.LastIndexOf("\\") + 1);
                        ZipEntry ZipEntry = new ZipEntry(fileName);
                        ZipStream.PutNextEntry(ZipEntry);
                        ZipStream.SetLevel(compressionLevel);
                        byte[] buffer = new byte[blockSize];
                        int sizeRead = 0;

                        try
                        {
                            do
                            {
                                sizeRead = StreamToZip.Read(buffer, 0, buffer.Length);
                                ZipStream.Write(buffer, 0, sizeRead);
                            }
                            while (sizeRead > 0);
                        }
                        catch (System.Exception ex)
                        {
                            throw ex;
                        }
                        StreamToZip.Close();
                    }
                    ZipStream.Finish();
                    ZipStream.Close();
                }
                ZipFile.Close();
            }
        }

        /// <summary>
        /// 压缩单个文件
        /// </summary>
        /// <param name="fileToZip">要进行压缩的文件名</param>
        /// <param name="zipedFile">压缩后生成的压缩文件名</param>
        public static void ZipFile(string fileToZip, string zipedFile)
        {
            //如果文件没有找到，则报错
            if (!File.Exists(fileToZip))
            {
                throw new System.IO.FileNotFoundException("指定要压缩的文件: " + fileToZip + " 不存在!");
            }

            using (FileStream fs = File.OpenRead(fileToZip))
            {
                byte[] buffer = new byte[fs.Length];
                fs.Read(buffer, 0, buffer.Length);
                fs.Close();

                using (FileStream ZipFile = File.Create(zipedFile))
                       {
                           using (ZipOutputStream ZipStream = new ZipOutputStream(ZipFile))
                           {
                               string fileName = fileToZip.Substring(fileToZip.LastIndexOf("\\") + 1);
                               ZipEntry ZipEntry = new ZipEntry(fileName);
                               ZipStream.PutNextEntry(ZipEntry);
                               ZipStream.SetLevel(5);
        
                               ZipStream.Write(buffer, 0, buffer.Length);
                               ZipStream.Finish();
                               ZipStream.Close();
                           }
                       }
                   }
               }
        
               /// <summary>
               /// 压缩多个文件到指定路径
               /// </summary>        
               /// <param name="sourceFileNames">压缩到哪个路径</param>
               /// <param name="zipFileName">压缩文件名称</param>
               public static void ZipFile(List<string> sourceFileNames, string zipFileName)
               {
                   //压缩文件打包
                   using (ZipOutputStream s = new ZipOutputStream(File.Create(zipFileName)))
                   {
                       s.SetLevel(9);
                       byte[] buffer = new byte[4096];
                       foreach (string file in sourceFileNames)
                       {
                           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
                           {
                               string pPath = "";
                               pPath += Path.GetFileName(file);
                               pPath += "\\";
                               ZipSetp(file, s, pPath, sourceFileNames);
                           }
                           else // 否则直接压缩文件
                           {
                               ZipEntry entry = new ZipEntry(Path.GetFileName(file));
                               entry.DateTime = DateTime.Now;
                               s.PutNextEntry(entry);
                               using (FileStream fs = File.OpenRead(file))
                               {
                                   int sourceBytes;
                                   do
                                   {
                                       sourceBytes = fs.Read(buffer, 0, buffer.Length);
                                       s.Write(buffer, 0, sourceBytes);
                                   } while (sourceBytes > 0);
                               }
                           }
                       }
                       s.Finish();
                       s.Close();
                   }
               }
        
               /// <summary>
               /// 压缩多层目录
               /// </summary>
               /// <param name="strDirectory">待压缩目录</param>
               /// <param name="zipedFile">压缩后生成的压缩文件名，绝对路径</param>
               public static void ZipFileDirectory(string strDirectory, string zipedFile)
               {
                   using (System.IO.FileStream ZipFile = System.IO.File.Create(zipedFile))
                   {
                       using (ZipOutputStream s = new ZipOutputStream(ZipFile))
                       {
                           s.SetLevel(9);
                           ZipSetp(strDirectory, s, "");
                       }
                   }
               }
        
               /// <summary>
               /// 压缩多层目录
               /// </summary>
               /// <param name="strDirectory">待压缩目录</param>
               /// <param name="zipedFile">压缩后生成的压缩文件名，绝对路径</param>
               /// <param name="files">指定要压缩的文件列表(完全路径)</param>
               public static void ZipFileDirectory(string strDirectory, string zipedFile, List<string> files)
               {
                   using (System.IO.FileStream ZipFile = System.IO.File.Create(zipedFile))
                   {
                       using (ZipOutputStream s = new ZipOutputStream(ZipFile))
                       {
                           s.SetLevel(9);
                           ZipSetp(strDirectory, s, "", files);
                       }
                   }
               }
        
               /// <summary>
               /// 递归遍历目录
               /// </summary>
               /// <param name="strDirectory">需遍历的目录</param>
               /// <param name="s">压缩输出流对象</param>
               /// <param name="parentPath">The parent path.</param>
               /// <param name="files">需要压缩的文件</param>
               private static void ZipSetp(string strDirectory, ZipOutputStream s, string parentPath, List<string> files = null)
               {
                   if (strDirectory[strDirectory.Length - 1] != Path.DirectorySeparatorChar)
                   {
                       strDirectory += Path.DirectorySeparatorChar;
                   }
        
                   string[] filenames = Directory.GetFileSystemEntries(strDirectory);
        
                   byte[] buffer = new byte[4096];
                   foreach (string file in filenames)// 遍历所有的文件和目录
                   {
                       if (files != null && !files.Contains(file))
                       {
                           continue;
                       }
                       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
                       {
                           string pPath = parentPath;
                           pPath += Path.GetFileName(file);
                           pPath += "\\";
                           ZipSetp(file, s, pPath, files);
                       }
                       else // 否则直接压缩文件
                       {
                           //打开压缩文件
                           string fileName = parentPath + Path.GetFileName(file);
                           ZipEntry entry = new ZipEntry(fileName);
        
                           entry.DateTime = DateTime.Now;
        
                           s.PutNextEntry(entry);
                           using (FileStream fs = File.OpenRead(file))
                           {
                               int sourceBytes;
                               do
                               {
                                   sourceBytes = fs.Read(buffer, 0, buffer.Length);
                                   s.Write(buffer, 0, sourceBytes);
                               } while (sourceBytes > 0);
                           }
                       }
                   }
               }
        
               /// <summary>
               /// 解压缩一个 zip 文件。
               /// </summary>
               /// <param name="zipedFile">压缩文件</param>
               /// <param name="strDirectory">解压目录</param>
               /// <param name="password">zip 文件的密码。</param>
               /// <param name="overWrite">是否覆盖已存在的文件。</param>
               public static void UnZip(string zipedFile, string strDirectory, bool overWrite, string password)
               {
                   if (strDirectory == "")
                       strDirectory = Directory.GetCurrentDirectory();
                   if (!strDirectory.EndsWith("\\"))
                       strDirectory = strDirectory + "\\";
        
                   using (ZipInputStream s = new ZipInputStream(File.OpenRead(zipedFile)))
                   {
                       if (password != null)
                       {
                           s.Password = password;
                       }
                       ZipEntry theEntry;
                       while ((theEntry = s.GetNextEntry()) != null)
                       {
                           string directoryName = "";
                           string pathToZip = "";
                           pathToZip = theEntry.Name;
        
                           if (pathToZip != "")
                               directoryName = Path.GetDirectoryName(pathToZip) + "\\";
                           string fileName = Path.GetFileName(pathToZip);
                           Directory.CreateDirectory(strDirectory + directoryName);
                           if (fileName != "")
                           {
                               if ((File.Exists(strDirectory + directoryName + fileName) && overWrite) || (!File.Exists(strDirectory + directoryName + fileName)))
                               {
                                   using (FileStream streamWriter = File.Create(strDirectory + directoryName + 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();
                   }
               }
        
               /// <summary>
               /// 解压缩一个 zip 文件。
               /// </summary>
               /// <param name="zipedFile">压缩文件</param>
               /// <param name="strDirectory">解压目录</param>
               /// <param name="overWrite">是否覆盖已存在的文件。</param>
               public static void UnZip(string zipedFile, string strDirectory, bool overWrite)
               {
                   UnZip(zipedFile, strDirectory, overWrite, null);
               }
        
               /// <summary>
               /// 解压缩一个 zip 文件。
               /// 覆盖已存在的文件。
               /// </summary>
               /// <param name="zipedFile">压缩文件</param>
               /// <param name="strDirectory">解压目录</param>
               public static void UnZip(string zipedFile, string strDirectory)
               {
                   UnZip(zipedFile, strDirectory, true);
               }
        
               /// <summary>
               /// 获取压缩文件中指定类型的文件
               /// </summary>
               /// <param name="zipedFile">压缩文件</param>
               /// <param name="fileExtension">文件类型(.txt|.exe)</param>
               /// <returns>文件名称列表(包含子目录)</returns>
               public static List<string> GetFiles(string zipedFile, List<string> fileExtension)
               {
                   List<string> files = new List<string>();
                   if (!File.Exists(zipedFile))
                   {
                       //return files;
                       throw new FileNotFoundException(zipedFile);
                   }
        
                   using (ZipInputStream s = new ZipInputStream(File.OpenRead(zipedFile)))
                   {
                       ZipEntry theEntry;
                       while ((theEntry = s.GetNextEntry()) != null)
                       {
                           if (theEntry.IsFile)
                           {
                               //Console.WriteLine("Name : {0}", theEntry.Name);
                               if (fileExtension != null)
                               {
                                   if (fileExtension.Contains(Path.GetExtension(theEntry.Name)))
                                   {
                                       files.Add(theEntry.Name);
                                   }
                               }
                               else
                               {
                                   files.Add(theEntry.Name);
                               }
                           }
                       }
                       s.Close();
                   }
                   return files;
               }
        
               /// <summary>
               /// 获取压缩文件中的所有文件
               /// </summary>
               /// <param name="zipedFile">压缩文件</param>
               /// <returns>文件名称列表(包含子目录)</returns>
               public static List<string> GetFiles(string zipedFile)
               {
                   return GetFiles(zipedFile, null);
               }
           }//Class_end
       }
三、SharpZipLib类的用法参考

①SharpZipLib 文件/文件夹压缩 - 逆心 - 博客园 (cnblogs.com)
②C# 利用ICSharpCode.SharpZipLib实现在线压缩和解压缩
该文章在 2023/12/31 16:51:29 编辑过
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