• ZIP压缩与解压


    /**//*
    
     * Gary Zhang -- cbcye@live.com
    
     * www.cbcye.com
    
     * www.quicklearn.cn
    
     * cbcye.cnblogs.com
    
     */
    
    using System;
    
    using System.Collections.Generic;
    
    using System.Text;
    
    using System.IO;
    
    using ICSharpCode.SharpZipLib.Zip;
    
    using System.Diagnostics;
    
    using ICSharpCode.SharpZipLib.Core;
    
    
    
    namespace TestConsole
    
    {
    
        class Program
    
        {
    
            static void Main()
    
            {
    
                //CreateZipFile(@"d:", @"d:a.zip");
    
                UnZipFile(@"d:a.zip");
    
    
    
                Console.Read();
    
            }
    
    
    
            private static void CreateZipFile(string filesPath, string zipFilePath)
    
            {
    
    
    
                if (!Directory.Exists(filesPath))
    
                {
    
                    Console.WriteLine("Cannot find directory '{0}'", filesPath);
    
                    return;
    
                }
    
    
    
                try
    
                {
    
                    string[] filenames = Directory.GetFiles(filesPath);
    
                    using (ZipOutputStream s = new ZipOutputStream(File.Create(zipFilePath)))
    
                    {
    
    
    
                        s.SetLevel(9); // 压缩级别 0-9
    
                        //s.Password = "123"; //Zip压缩文件密码
    
                        byte[] buffer = new byte[4096]; //缓冲区大小
    
                        foreach (string file in filenames)
    
                        {
    
                            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();
    
                    }
    
                }
    
                catch (Exception ex)
    
                {
    
                    Console.WriteLine("Exception during processing {0}", ex);
    
                }
    
            }
    
    
    
            private static void UnZipFile( string zipFilePath)
    
            {
    
                if (!File.Exists(zipFilePath))
    
                {
    
                    Console.WriteLine("Cannot find file '{0}'", zipFilePath);
    
                    return;
    
                }
    
    
    
                using (ZipInputStream s = new ZipInputStream(File.OpenRead(zipFilePath)))
    
                {
    
    
    
                    ZipEntry theEntry;
    
                    while ((theEntry = s.GetNextEntry()) != null)
    
                    {
    
    
    
                        Console.WriteLine(theEntry.Name);
    
    
    
                        string directoryName = Path.GetDirectoryName(theEntry.Name);
    
                        string fileName = Path.GetFileName(theEntry.Name);
    
    
    
                        // create directory
    
                        if (directoryName.Length > 0)
    
                        {
    
                            Directory.CreateDirectory(directoryName);
    
                        }
    
    
    
                        if (fileName != String.Empty)
    
                        {
    
                            using (FileStream streamWriter = File.Create(theEntry.Name))
    
                            {
    
    
    
                                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;
    
                                    }
    
                                }
    
                            }
    
                        }
    
                    }
    
                }
    
            }
    
        }
    
    
    
    }
    

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  • 原文地址:https://www.cnblogs.com/xiangxiong/p/6962324.html
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