Java处理压缩包

代码源地址：http://sourceforge.net/p/sevenzipjbind/discussion/757964/thread/b64a36fb

支持压缩格式：- 7z, Zip, Tar, Rar, Lzma, Iso, GZip, Cpio, BZIP2, Z, Arj, Lzh, Cab, Chm, Nsis, DEB, RPM, UDF, WIM

代码如下：

package com.neusoft;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.util.logging.Logger;

import net.sf.sevenzipjbinding.ExtractAskMode;
import net.sf.sevenzipjbinding.ExtractOperationResult;
import net.sf.sevenzipjbinding.IArchiveExtractCallback;
import net.sf.sevenzipjbinding.ISequentialOutStream;
import net.sf.sevenzipjbinding.ISevenZipInArchive;
import net.sf.sevenzipjbinding.PropID;
import net.sf.sevenzipjbinding.SevenZip;
import net.sf.sevenzipjbinding.SevenZipException;
import net.sf.sevenzipjbinding.impl.RandomAccessFileInStream;

/** 
 * <p>Description: [压缩文件工具包]</p>
 * @author  <a href="mailto: [email protected]">李彬彬</a>
 * @version $Revision$ 
 */
public class ZipTools
{
    private static Logger logger = Logger.getLogger(ZipTools.class.getCanonicalName());

    /**
     * <p>Discription:[将解压文件解压到指定目录下]</p>
     * @param file 文件全路径
     * @param extractPath 解压后文件存往路径 -支持压缩格式: 7Z，ZIP，TAR，RAR，LZMA，ISO，GZIP，BZIP2，CPIO，Z，ARJ，LZH，CAB，CHM，NSIS，DEB，RPM，UDF，WIM
     * @throws SevenZipException
     * @throws IOException
     * @author:[李彬彬]
     * @update:[日期YYYY-MM-DD] [更改人姓名][变更描述]
     */
    public void extract(String file, String extractPath) throws SevenZipException, IOException
    {
        ISevenZipInArchive inArchive = null;
        RandomAccessFile randomAccessFile = null;
        try
        {
            randomAccessFile = new RandomAccessFile(new File(file), "r");
            inArchive = SevenZip.openInArchive(null, new RandomAccessFileInStream(randomAccessFile));
            inArchive.extract(null, false, new ExtractCallback(inArchive, extractPath));
        }
        finally
        {
            if (inArchive != null)
            {
                inArchive.close();
            }
            if (randomAccessFile != null)
            {
                randomAccessFile.close();
            }
        }
    }

    /** 
     * <p>Description: [提后文件后回调方法]</p>
     * @author  <a href="mailto: [email protected]">李彬彬</a>
     * @version $Revision$ 
     */
    private class ExtractCallback implements IArchiveExtractCallback
    {
        private final ISevenZipInArchive inArchive;

        private final String extractPath;

        public ExtractCallback(ISevenZipInArchive inArchive, String extractPath)
        {
            this.inArchive = inArchive;
            if (!extractPath.endsWith("/") && !extractPath.endsWith("\\"))
            {
                extractPath += File.separator;
            }
            this.extractPath = extractPath;
        }

        @Override
        public ISequentialOutStream getStream(final int index, ExtractAskMode extractAskMode) throws SevenZipException
        {
            return new ISequentialOutStream()
            {
                @Override
                public int write(byte[] data) throws SevenZipException
                {
                    String filePath = inArchive.getStringProperty(index, PropID.PATH);
                    FileOutputStream fos = null;
                    try
                    {
                        File path = new File(extractPath + filePath);

                        if (!path.getParentFile().exists())
                        {
                            path.getParentFile().mkdirs();
                        }

                        if (!path.exists())
                        {
                            path.createNewFile();
                        }
                        fos = new FileOutputStream(path, true);
                        fos.write(data);
                    }
                    catch (IOException e)
                    {
                        logger.log(null, "IOException while extracting " + filePath);
                    }
                    finally
                    {
                        try
                        {
                            if (fos != null)
                            {
                                fos.flush();
                                fos.close();
                            }
                        }
                        catch (IOException e)
                        {
                            logger.log(null, "Could not close FileOutputStream", e);
                        }
                    }
                    return data.length;
                }
            };
        }

        @Override
        public void setCompleted(long arg0) throws SevenZipException
        {
        }

        @Override
        public void setTotal(long arg0) throws SevenZipException
        {
        }

        @Override
        public void prepareOperation(ExtractAskMode arg0) throws SevenZipException
        {
        }

        @Override
        public void setOperationResult(ExtractOperationResult arg0) throws SevenZipException
        {
        }
    }
}