C# 使用SharpZipLib生成压缩包的实例代码

using ICSharpCode.SharpZipLib.Checksum;using ICSharpCode.SharpZipLib.Zip;using System;using System.Collections.Generic;using System.IO;using System.Linq;using System.Text;using System.Threading.Tasks;namespace DemoZip{  class ZipHelper  {    private string rootPath = string.Empty;    #region 压缩     /// <summary>      /// 递归压缩文件夹的内部方法      /// </summary>      /// <param name="folderToZip">要压缩的文件夹路径</param>      /// <param name="zipStream">压缩输出流</param>      /// <param name="parentFolderName">此文件夹的上级文件夹</param>      /// <returns></returns>      private bool ZipDirectory(string folderToZip, ZipOutputStream zipStream, string parentFolderName)    {      bool result = true;      string[] folders, files;      ZipEntry ent = null;      FileStream fs = null;      Crc32 crc = new Crc32();      try      {        string entName = folderToZip.Replace(this.rootPath, string.Empty)+"/";        //Path.Combine(parentFolderName, Path.GetFileName(folderToZip) + "/")        ent = new ZipEntry(entName);        zipStream.PutNextEntry(ent);        zipStream.Flush();        files = Directory.GetFiles(folderToZip);        foreach (string file in files)        {          fs = File.OpenRead(file);          byte[] buffer = new byte[fs.Length];          fs.Read(buffer, 0, buffer.Length);          ent = new ZipEntry(entName + Path.GetFileName(file));          ent.DateTime = DateTime.Now;          ent.Size = fs.Length;          fs.Close();          crc.Reset();          crc.Update(buffer);          ent.Crc = crc.Value;          zipStream.PutNextEntry(ent);          zipStream.Write(buffer, 0, buffer.Length);        }      }      catch      {        result = false;      }      finally      {        if (fs != null)        {          fs.Close();          fs.Dispose();        }        if (ent != null)        {          ent = null;        }        GC.Collect();        GC.Collect(1);      }      folders = Directory.GetDirectories(folderToZip);      foreach (string folder in folders)        if (!ZipDirectory(folder, zipStream, folderToZip))          return false;      return result;    }    /// <summary>      /// 压缩文件夹      /// </summary>      /// <param name="folderToZip">要压缩的文件夹路径</param>      /// <param name="zipedFile">压缩文件完整路径</param>      /// <param name="password">密码</param>      /// <returns>是否压缩成功</returns>      public bool ZipDirectory(string folderToZip, string zipedFile, string password)    {      bool result = false;      if (!Directory.Exists(folderToZip))        return result;      ZipOutputStream zipStream = new ZipOutputStream(File.Create(zipedFile));      zipStream.SetLevel(6);      if (!string.IsNullOrEmpty(password)) zipStream.Password = password;      result = ZipDirectory(folderToZip, zipStream, "");      zipStream.Finish();      zipStream.Close();      return result;    }    /// <summary>      /// 压缩文件夹      /// </summary>      /// <param name="folderToZip">要压缩的文件夹路径</param>      /// <param name="zipedFile">压缩文件完整路径</param>      /// <returns>是否压缩成功</returns>      public bool ZipDirectory(string folderToZip, string zipedFile)    {      bool result = ZipDirectory(folderToZip, zipedFile, null);      return result;    }    /// <summary>      /// 压缩文件      /// </summary>      /// <param name="fileToZip">要压缩的文件全名</param>      /// <param name="zipedFile">压缩后的文件名</param>      /// <param name="password">密码</param>      /// <returns>压缩结果</returns>      public bool ZipFile(string fileToZip, string zipedFile, string password)    {      bool result = true;      ZipOutputStream zipStream = null;      FileStream fs = null;      ZipEntry ent = null;      if (!File.Exists(fileToZip))        return false;      try      {        fs = File.OpenRead(fileToZip);        byte[] buffer = new byte[fs.Length];        fs.Read(buffer, 0, buffer.Length);        fs.Close();        fs = File.Create(zipedFile);        zipStream = new ZipOutputStream(fs);        if (!string.IsNullOrEmpty(password)) zipStream.Password = password;        ent = new ZipEntry(Path.GetFileName(fileToZip));        zipStream.PutNextEntry(ent);        zipStream.SetLevel(6);        zipStream.Write(buffer, 0, buffer.Length);      }      catch      {        result = false;      }      finally      {        if (zipStream != null)        {          zipStream.Finish();          zipStream.Close();        }        if (ent != null)        {          ent = null;        }        if (fs != null)        {          fs.Close();          fs.Dispose();        }      }      GC.Collect();      GC.Collect(1);      return result;    }    /// <summary>      /// 压缩文件      /// </summary>      /// <param name="fileToZip">要压缩的文件全名</param>      /// <param name="zipedFile">压缩后的文件名</param>      /// <returns>压缩结果</returns>      public bool ZipFile(string fileToZip, string zipedFile)    {      bool result = ZipFile(fileToZip, zipedFile, null);      return result;    }    /// <summary>      /// 压缩文件或文件夹      /// </summary>      /// <param name="fileToZip">要压缩的路径</param>      /// <param name="zipedFile">压缩后的文件名</param>      /// <param name="password">密码</param>      /// <returns>压缩结果</returns>      public bool Zip(string fileToZip, string zipedFile, string password)    {      bool result = false;      if (Directory.Exists(fileToZip))      {        this.rootPath = Path.GetDirectoryName(fileToZip);        result = ZipDirectory(fileToZip, zipedFile, password);      }      else if (File.Exists(fileToZip))      {        this.rootPath = Path.GetDirectoryName(fileToZip);        result = ZipFile(fileToZip, zipedFile, password);      }      return result;    }    /// <summary>      /// 压缩文件或文件夹      /// </summary>      /// <param name="fileToZip">要压缩的路径</param>      /// <param name="zipedFile">压缩后的文件名</param>      /// <returns>压缩结果</returns>      public bool Zip(string fileToZip, string zipedFile)    {      bool result = Zip(fileToZip, zipedFile, null);      return result;    }    #endregion    #region 解压     /// <summary>      /// 解压功能(解压压缩文件到指定目录)      /// </summary>      /// <param name="fileToUnZip">待解压的文件</param>      /// <param name="zipedFolder">指定解压目标目录</param>      /// <param name="password">密码</param>      /// <returns>解压结果</returns>      public bool UnZip(string fileToUnZip, string zipedFolder, string password)    {      bool result = true;      FileStream fs = null;      ZipInputStream zipStream = null;      ZipEntry ent = null;      string fileName;      if (!File.Exists(fileToUnZip))        return false;      if (!Directory.Exists(zipedFolder))        Directory.CreateDirectory(zipedFolder);      try      {        zipStream = new ZipInputStream(File.OpenRead(fileToUnZip));        if (!string.IsNullOrEmpty(password)) zipStream.Password = password;        while ((ent = zipStream.GetNextEntry()) != null)        {          if (!string.IsNullOrEmpty(ent.Name))          {            fileName = Path.Combine(zipedFolder, ent.Name);            fileName = fileName.Replace('/', '//');//change by Mr.HopeGi              if (fileName.EndsWith("//"))            {              Directory.CreateDirectory(fileName);              continue;            }            fs = File.Create(fileName);            int size = 2048;            byte[] data = new byte[size];            while (true)            {              size = zipStream.Read(data, 0, data.Length);              if (size > 0)                fs.Write(data, 0, data.Length);              else                break;            }          }        }      }      catch      {        result = false;      }      finally      {        if (fs != null)        {          fs.Close();          fs.Dispose();        }        if (zipStream != null)        {          zipStream.Close();          zipStream.Dispose();        }        if (ent != null)        {          ent = null;        }        GC.Collect();        GC.Collect(1);      }      return result;    }    /// <summary>      /// 解压功能(解压压缩文件到指定目录)      /// </summary>      /// <param name="fileToUnZip">待解压的文件</param>      /// <param name="zipedFolder">指定解压目标目录</param>      /// <returns>解压结果</returns>      public bool UnZip(string fileToUnZip, string zipedFolder)    {      bool result = UnZip(fileToUnZip, zipedFolder, null);      return result;    }    #endregion  }}