java合并几个图片

package com.anduo.web;

import java.awt.image.BufferedImage;
import java.io.File;

import javax.imageio.ImageIO;

public class Test {
    public static void main(String args[]) {
        try {
            // 读取第一张图片
            File fileOne = new File("D:\\1.jpg");
            BufferedImage ImageOne = ImageIO.read(fileOne);
            int width = ImageOne.getWidth();// 图片宽度
            int height = ImageOne.getHeight();// 图片高度

            // 从图片中读取RGB
            int[] ImageArrayOne = new int[width * height];
            ImageArrayOne = ImageOne.getRGB(0, 0, width, height, ImageArrayOne, 0, width);

            // 对第二张图片做相同的处理
            File fileTwo = new File("D:\\2.jpg");
            BufferedImage ImageTwo = ImageIO.read(fileTwo);
            int[] ImageArrayTwo = new int[width * height];
            ImageArrayTwo = ImageTwo.getRGB(0, 0, width, height, ImageArrayTwo, 0, width);

            // 生成新图片
            //   BufferedImage ImageNew = new BufferedImage(width * 2, height,
            //   BufferedImage.TYPE_INT_RGB);
            BufferedImage ImageNew = new BufferedImage(width, height * 2, BufferedImage.TYPE_INT_RGB);
            ImageNew.setRGB(0, 0, width, height, ImageArrayOne, 0, width);// 设置左半部分的RGB
            //   ImageNew.setRGB(width, 0, width, height, ImageArrayTwo, 0, width);// 设置右半部分的RGB
            //   ImageNew.setRGB(0, height, width, ImageOne.getHeight()+ImageTwo.getHeight(), ImageArrayTwo, 0, width);// 设置右半部分的RGB
            ImageNew.setRGB(0, height, width, height, ImageArrayTwo, 0, width);// 设置右半部分的RGB

            File outFile = new File("d:\\out.jpg");
            ImageIO.write(ImageNew, "jpg", outFile);// 写图片
        }
        catch (Exception e) {
            e.printStackTrace();
        }
    }
}

 参考 ：  http://blog.donews.com/sunjita/archive/2010/05/18/1249464.aspx