java压缩和解压缩tar格式

import java.io.BufferedInputStream;  
import java.io.BufferedOutputStream;  
import java.io.File;  
import java.io.FileInputStream;  
import java.io.FileOutputStream;  
  
import org.apache.commons.compress.archivers.tar.TarArchiveEntry;  
import org.apache.commons.compress.archivers.tar.TarArchiveOutputStream;  
import org.apache.commons.compress.archivers.tar.TarArchiveInputStream;  
  
/** 
 * TAR工具 
 *  
 * 
 * @since 1.0 
 */  
public abstract class TarUtils {  
  
    private static final String BASE_DIR = "";  
  
    // 符号"/"用来作为目录标识判断符  
    private static final String PATH = File.separator;  
    private static final int BUFFER = 1024;  
  
    private static final String EXT = ".tar";  
  
    /** 
     * 归档 
     *  
     * @param srcPath 
     * @param destPath 
     * @throws Exception 
     */  
    public static void archive(String srcPath, String destPath)  
            throws Exception {  
  
        File srcFile = new File(srcPath);  
  
        archive(srcFile, destPath);  
  
    }  
  
    /** 
     * 归档 
     *  
     * @param srcFile 
     *            源路径 
     * @param destPath 
     *            目标路径 
     * @throws Exception 
     */  
    public static void archive(File srcFile, File destFile) throws Exception {  
  
        TarArchiveOutputStream taos = new TarArchiveOutputStream(  
                new FileOutputStream(destFile));  
  
        archive(srcFile, taos, BASE_DIR);  
  
        taos.flush();  
        taos.close();  
    }  
  
    /** 
     * 归档 
     *  
     * @param srcFile 
     * @throws Exception 
     */  
    public static void archive(File srcFile) throws Exception {  
        String name = srcFile.getName();  
        String basePath = srcFile.getParent();  
        String destPath = basePath+File.separator + name + EXT;  
        archive(srcFile, destPath);  
    }  
  
    /** 
     * 归档文件 
     *  
     * @param srcFile 
     * @param destPath 
     * @throws Exception 
     */  
    public static void archive(File srcFile, String destPath) throws Exception {  
        archive(srcFile, new File(destPath));  
    }  
  
    /** 
     * 归档 
     *  
     * @param srcPath 
     * @throws Exception 
     */  
    public static void archive(String srcPath) throws Exception {  
        File srcFile = new File(srcPath);  
  
        archive(srcFile);  
    }  
  
    /** 
     * 归档 
     *  
     * @param srcFile 
     *            源路径 
     * @param taos 
     *            TarArchiveOutputStream 
     * @param basePath 
     *            归档包内相对路径 
     * @throws Exception 
     */  
    private static void archive(File srcFile, TarArchiveOutputStream taos,  
            String basePath) throws Exception {  
        if (srcFile.isDirectory()) {  
            archiveDir(srcFile, taos, basePath);  
        } else {  
            archiveFile(srcFile, taos, basePath);  
        }  
    }  
  
    /** 
     * 目录归档 
     *  
     * @param dir 
     * @param taos 
     *            TarArchiveOutputStream 
     * @param basePath 
     * @throws Exception 
     */  
    private static void archiveDir(File dir, TarArchiveOutputStream taos,  
            String basePath) throws Exception {  
  
        File[] files = dir.listFiles();  
  
        if (files.length < 1) {  
            TarArchiveEntry entry = new TarArchiveEntry(basePath  
                    + dir.getName() + PATH);  
  
            taos.putArchiveEntry(entry);  
            taos.closeArchiveEntry();  
        }  
  
        for (File file : files) {  
  
            // 递归归档  
            archive(file, taos, basePath + dir.getName() + PATH);  
  
        }  
    }  
  
    /** 
     * 数据归档 
     *  
     * @param data 
     *            待归档数据 
     * @param path 
     *            归档数据的当前路径 
     * @param name 
     *            归档文件名 
     * @param taos 
     *            TarArchiveOutputStream 
     * @throws Exception 
     */  
    private static void archiveFile(File file, TarArchiveOutputStream taos,  
            String dir) throws Exception {  
  
        /** 
         * 归档内文件名定义 
         *  
         * <pre> 
         * 如果有多级目录，那么这里就需要给出包含目录的文件名 
         * 如果用WinRAR打开归档包，中文名将显示为乱码 
         * </pre> 
         */  
        TarArchiveEntry entry = new TarArchiveEntry(dir + file.getName()); 
         //如果打包不需要文件夹，就用 new TarArchiveEntry(file.getName())
  
        entry.setSize(file.length());  
  
        taos.putArchiveEntry(entry);  
  
        BufferedInputStream bis = new BufferedInputStream(new FileInputStream(  
                file));  
        int count;  
        byte data[] = new byte[BUFFER];  
        while ((count = bis.read(data, 0, BUFFER)) != -1) {  
            taos.write(data, 0, count);  
        }  
  
        bis.close();  
  
        taos.closeArchiveEntry();  
    }  
  
    /** 
     * 解归档 
     *  
     * @param srcFile 
     * @throws Exception 
     */  
    public static void dearchive(File srcFile) throws Exception {  
        String basePath = srcFile.getParent();  
        dearchive(srcFile, basePath);  
    }  
  
    /** 
     * 解归档 
     *  
     * @param srcFile 
     * @param destFile 
     * @throws Exception 
     */  
    public static void dearchive(File srcFile, File destFile) throws Exception {  
  
        TarArchiveInputStream tais = new TarArchiveInputStream(  
                new FileInputStream(srcFile));  
        dearchive(destFile, tais);  
  
        tais.close();  
  
    }  
  
    /** 
     * 解归档 
     *  
     * @param srcFile 
     * @param destPath 
     * @throws Exception 
     */  
    public static void dearchive(File srcFile, String destPath)  
            throws Exception {  
        dearchive(srcFile, new File(destPath));  
  
    }  
  
    /** 
     * 文件 解归档 
     *  
     * @param destFile 
     *            目标文件 
     * @param tais 
     *            ZipInputStream 
     * @throws Exception 
     */  
    private static void dearchive(File destFile, TarArchiveInputStream tais)  
            throws Exception {  
  
        TarArchiveEntry entry = null;  
        while ((entry = tais.getNextTarEntry()) != null) {  
  
            // 文件  
            String dir = destFile.getPath() + File.separator + entry.getName();  
  
            File dirFile = new File(dir);  
  
            // 文件检查  
            fileProber(dirFile);  
  
            if (entry.isDirectory()) {  
                dirFile.mkdirs();  
            } else {  
                dearchiveFile(dirFile, tais);  
            }  
  
        }  
    }  
  
    /** 
     * 文件 解归档 
     *  
     * @param srcPath 
     *            源文件路径 
     *  
     * @throws Exception 
     */  
    public static void dearchive(String srcPath) throws Exception {  
        File srcFile = new File(srcPath);  
  
        dearchive(srcFile);  
    }  
  
    /** 
     * 文件 解归档 
     *  
     * @param srcPath 
     *            源文件路径 
     * @param destPath 
     *            目标文件路径 
     * @throws Exception 
     */  
    public static void dearchive(String srcPath, String destPath)  
            throws Exception {  
  
        File srcFile = new File(srcPath);  
        dearchive(srcFile, destPath);  
    }  
  
    /** 
     * 文件解归档 
     *  
     * @param destFile 
     *            目标文件 
     * @param tais 
     *            TarArchiveInputStream 
     * @throws Exception 
     */  
    private static void dearchiveFile(File destFile, TarArchiveInputStream tais)  
            throws Exception {  
  
        BufferedOutputStream bos = new BufferedOutputStream(  
                new FileOutputStream(destFile));  
  
        int count;  
        byte data[] = new byte[BUFFER];  
        while ((count = tais.read(data, 0, BUFFER)) != -1) {  
            bos.write(data, 0, count);  
        }  
  
        bos.close();  
    }  
  
    /** 
     * 文件探针 
     *  
     * <pre> 
     * 当父目录不存在时，创建目录！ 
     * </pre> 
     *  
     * @param dirFile 
     */  
    private static void fileProber(File dirFile) {  
  
        File parentFile = dirFile.getParentFile();  
        if (!parentFile.exists()) {  
  
            // 递归寻找上级目录  
            fileProber(parentFile);  
  
            parentFile.mkdir();  
        }  
  
    }  
  
    public static void main(String[] args){
        try{
            String path="e:/test";//要压缩的文件夹
            archive(path); //压缩
            dearchive(path+".tar","e:/test");//解压缩
        }catch(Exception e){
        }   
 
    }
}