Java实现压缩一个目录下所有图片文件

import java.io.*;
import java.util.*;
import java.util.zip.*;

/** *//**
 * 打包照片文件
 */
public class PhotoZip
{
    public static void main(String[] args)
    {
        if (args.length < 2)
        {
            System.out.println("Usage: java PhotoZip photodir target.zip");
        }
        else
        {
        try
        {
            byte[] buf = new byte[1024]; // 缓冲区
            File dir = new File(args[0]); // 照片目录
            ZipOutputStream zos = new ZipOutputStream(new FileOutputStream(args[1])); // 压缩包流
            
            String[] files = dir.list(); //列表照片目录下文件
            String fPath = dir.getCanonicalPath();
            if (!fPath.endsWith(File.separator))
            {
                fPath = fPath + File.separator;
            }

            for(int idx = 0; idx < files.length; idx ++)
            {
                if (files[idx].length() >= 12)
                {
                    try
                    {
                        zos.putNextEntry(new ZipEntry(files[idx].substring(0, 8) + ".jpg")); // 统一文件名为8位+扩展名.jpg
                        BufferedInputStream bis = new BufferedInputStream(new FileInputStream(fPath + files[idx]));
                        while (bis.read(buf, 0, 1024) != -1)
                        {
                            zos.write(buf);
                        }
                        bis.close();
                        zos.closeEntry();
                    }
                    catch (ZipException zexp)
                    {
                        zexp.printStackTrace();
                    }
                }
            }
            zos.close();
        }
        catch (Exception exp)
        {
            exp.printStackTrace();
        }
        }
    }
};