53 lines
2.1 KiB
C#
53 lines
2.1 KiB
C#
using System;
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using System.IO;
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using ICSharpCode.SharpZipLib.Checksum;
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using ICSharpCode.SharpZipLib.Zip;
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namespace IRaCIS.Core.Infrastructure
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{
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public class ZipHelper
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{
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public static void CreateZip(string sourceFilePath, string destinationZipFilePath)
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{
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if (sourceFilePath[sourceFilePath.Length - 1] != Path.DirectorySeparatorChar)
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sourceFilePath += Path.DirectorySeparatorChar;
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ZipOutputStream zipStream = new ZipOutputStream(File.Create(destinationZipFilePath));
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zipStream.SetLevel(6); // 压缩级别 0-9
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CreateZipFiles(sourceFilePath, zipStream);
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zipStream.Finish();
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zipStream.Close();
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}
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private static void CreateZipFiles(string sourceFilePath, ZipOutputStream zipStream)
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{
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Crc32 crc = new Crc32();
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string[] filesArray = Directory.GetFileSystemEntries(sourceFilePath);
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foreach (string file in filesArray)
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{
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if (Directory.Exists(file)) //如果当前是文件夹，递归
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{
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CreateZipFiles(file, zipStream);
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}
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else //如果是文件，开始压缩
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{
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FileStream fileStream = File.OpenRead(file);
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byte[] buffer = new byte[fileStream.Length];
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fileStream.Read(buffer, 0, buffer.Length);
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string tempFile = file.Substring(sourceFilePath.LastIndexOf("\\") + 1);
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ZipEntry entry = new ZipEntry(tempFile);
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entry.DateTime = DateTime.Now;
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entry.Size = fileStream.Length;
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fileStream.Close();
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crc.Reset();
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crc.Update(buffer);
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entry.Crc = crc.Value;
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zipStream.PutNextEntry(entry);
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zipStream.Write(buffer, 0, buffer.Length);
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}
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}
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}
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}
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}
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