JAVA ZIP

JAVA ZIP

package  com.framework.commons.util;

import  java.io. * ;
import  java.util. * ;
import  java.util.zip.ZipOutputStream;
import  java.util.zip.ZipEntry;
import  java.util.zip.ZipFile;

/** */ /**
 * <ul>
 * <li>Title:[ZipUtil]</li>
 * <li>Description: [zip加压名解压多个文件]</li>
 * <li>Copyright 2009 Upengs Co., Ltd.</li>
 * <li>All right reserved.</li>
 * <li>Created by [Huyvanpull] [2011-1-9]</li>
 * <li>Midified by [modifier] [modified time]</li>
 * </ul>
 * 
 * @version 1.0
 */
public   class  ZipUtil
{
    public ZipUtil()
    {}
    
    public static void main(String[] args)
    {
        try
        {
            File f1 = new File("G:/t1.txt");
            File f2 = new File("G:/t2.txt");
            
            File[] fs = new File[]{f1, f2};
            
            File f = new File("G:/t.zip");
            ZipUtil.ZipFiles(fs, f);
        }
        catch(Exception ex)
        {
            ex.printStackTrace();
        }
    }
    
    /** *//**
     * <ul>
     * <li>Description:[压缩文件]</li>
     * <li>Created by [Huyvanpull] [2011-1-9]</li>
     * <li>Midified by [modifier] [modified time]</li>
     * </ul>
     * 
     * @param srcfile
     * 需要压缩的文件列表
     * @param zipfile
     * 压缩后的文件
     */
    public static void ZipFiles(java.io.File[] srcfile, java.io.File zipfile)
    {
        byte[] buf = new byte[1024];
        try
        {
            // Create the ZIP file
            ZipOutputStream out = new ZipOutputStream(new FileOutputStream(
                    zipfile));
            // Compress the files
            for (int i = 0; i < srcfile.length; i++)
            {
                FileInputStream in = new FileInputStream(srcfile[i]);
                // Add ZIP entry to output stream.
                out.putNextEntry(new ZipEntry(srcfile[i].getName()));
                // Transfer bytes from the file to the ZIP file
                int len;
                while ((len = in.read(buf)) > 0)
                {
                    out.write(buf, 0, len);
                }
                // Complete the entry
                out.closeEntry();
                in.close();
            }
            // Complete the ZIP file
            out.close();
            System.out.println("压缩完成.");
        }
        catch (IOException e)
        {
            e.printStackTrace();
        }
    }
    
    /** *//**
     * <ul>
     * <li>Description:[解压缩]</li>
     * <li>Created by [Huyvanpull] [2011-1-9]</li>
     * <li>Midified by [modifier] [modified time]</li>
     * </ul>
     * 
     * @param zipfile
     * 需要解压缩的文件
     * @param descDir
     * 解压后的目标目录
     */
    @SuppressWarnings("unchecked")
    public static void UnZipFiles(java.io.File zipfile, String descDir)
    {
        try
        {
            // Open the ZIP file
            ZipFile zf = new ZipFile(zipfile);
            for (Enumeration entries = zf.entries(); entries.hasMoreElements();)
            {
                // Get the entry name
                ZipEntry entry = ((ZipEntry) entries.nextElement());
                String zipEntryName = entry.getName();
                InputStream in = zf.getInputStream(entry);
                // System.out.println(zipEntryName);
                OutputStream out = new FileOutputStream(descDir + zipEntryName);
                byte[] buf1 = new byte[1024];
                int len;
                while ((len = in.read(buf1)) > 0)
                {
                    out.write(buf1, 0, len);
                }
                // Close the file and stream
                in.close();
                out.close();
                System.out.println("解压缩完成.");
            }
        }
        catch (IOException e)
        {
            e.printStackTrace();
        }
    }
}