java合成图片

package com.pbids.sanqin.util;

import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.net.URL;


public class PicUtil {
    private Font font     = new Font("宋体", Font.PLAIN, 12); // 添加字体的属性设置

    private Graphics2D g        = null;

    private int        fontsize = 0;

    private int        x        = 0;

    private int        y        = 0;

    /**
     * 导入本地图片到缓冲区
     */
    public BufferedImage loadImageLocal(String imgName) {
        try {
            return ImageIO.read(new File(imgName));
        } catch (IOException e) {
            System.out.println(e.getMessage());
        }
        return null;
    }

    /**
     * 导入网络图片到缓冲区
     */
    public BufferedImage loadImageUrl(String imgName) {
        try {
            URL url = new URL(imgName);
            return ImageIO.read(url);
        } catch (IOException e) {
            System.out.println(e.getMessage());
        }
        return null;
    }

    /**
     * 生成新图片到本地 
     */
    public void writeImageLocal(String newImage, BufferedImage img) {
        if (newImage != null && img != null) {
            try {
                File outputfile = new File(newImage);
                ImageIO.write(img, "png", outputfile);
            } catch (IOException e) {
                System.out.println(e.getMessage());
            }
        }
    }

    /**
     * 设定文字的字体等
     */
    public void setFont(String fontStyle, int fontSize) {
        this.fontsize = fontSize;
        this.font = new Font(fontStyle, Font.PLAIN, fontSize);
    }

    /**
     * 修改图片,返回修改后的图片缓冲区（只输出一行文本）
     */
    public BufferedImage modifyImage(BufferedImage img, Object content, int x, int y) {

        try {
            int w = img.getWidth();
            int h = img.getHeight();
            g = img.createGraphics();
            g.setBackground(Color.WHITE);
            g.setColor(Color.orange);//设置字体颜色
            if (this.font != null)
                g.setFont(this.font);
            // 验证输出位置的纵坐标和横坐标
            if (x >= h || y >= w) {
                this.x = h - this.fontsize + 2;
                this.y = w;
            } else {
                this.x = x;
                this.y = y;
            }
            if (content != null) {
                g.drawString(content.toString(), this.x, this.y);
            }
            g.dispose();
        } catch (Exception e) {
            System.out.println(e.getMessage());
        }

        return img;
    }

    /**
     * 修改图片,返回修改后的图片缓冲区（输出多个文本段） xory：true表示将内容在一行中输出；false表示将内容多行输出
     */
    public BufferedImage modifyImage(BufferedImage img, Object[] contentArr, int x, int y,
                                     boolean xory) {
        try {
            int w = img.getWidth();
            int h = img.getHeight();
            g = img.createGraphics();
            g.setBackground(Color.WHITE);
            g.setColor(Color.RED);
            if (this.font != null)
                g.setFont(this.font);
            // 验证输出位置的纵坐标和横坐标
            if (x >= h || y >= w) {
                this.x = h - this.fontsize + 2;
                this.y = w;
            } else {
                this.x = x;
                this.y = y;
            }
            if (contentArr != null) {
                int arrlen = contentArr.length;
                if (xory) {
                    for (int i = 0; i < arrlen; i++) {
                        g.drawString(contentArr[i].toString(), this.x, this.y);
                        this.x += contentArr[i].toString().length() * this.fontsize / 2 + 5;// 重新计算文本输出位置
                    }
                } else {
                    for (int i = 0; i < arrlen; i++) {
                        g.drawString(contentArr[i].toString(), this.x, this.y);
                        this.y += this.fontsize + 2;// 重新计算文本输出位置
                    }
                }
            }
            g.dispose();
        } catch (Exception e) {
            System.out.println(e.getMessage());
        }

        return img;
    }

    /**
     * 修改图片,返回修改后的图片缓冲区（只输出一行文本）
     *
     * 时间:2007-10-8
     *
     * @param img
     * @return
     */
    public BufferedImage modifyImageYe(BufferedImage img) {

        try {
            int w = img.getWidth();
            int h = img.getHeight();
            g = img.createGraphics();
            g.setBackground(Color.WHITE);
            g.setColor(Color.blue);//设置字体颜色
            if (this.font != null)
                g.setFont(this.font);
            g.drawString("www.hi.baidu.com?xia_mingjian", w - 85, h - 5);
            g.dispose();
        } catch (Exception e) {
            System.out.println(e.getMessage());
        }

        return img;
    }

    /**
     * 合成图片
     * @param addImage
     * @param originalImage
     * @return
     */
    public BufferedImage modifyImagetogeter(BufferedImage addImage, BufferedImage originalImage) {

        try {
          /*  int w = d.getWidth();
            int h = d.getHeight();*/
            g = originalImage.createGraphics();
            g.drawImage(addImage, 593, 1875, 335, 335, null);
            g.dispose();
        } catch (Exception e) {
            System.out.println(e.getMessage());
        }

        return originalImage;
    }

  

    /**
     * 图片合成
     * @param
     * @param
     */
   /* public static final void overlapImage(String bigPath, String smallPath) {
        try {
            BufferedImage big = ImageIO.read(new File(bigPath));
            BufferedImage small = ImageIO.read(new File(smallPath));
            Graphics2D g = big.createGraphics();
            int x = (big.getWidth() - small.getWidth()) / 2;
            int y = (big.getHeight() - small.getHeight()) / 2;
            g.drawImage(small, x, y, small.getWidth(), small.getHeight(), null);
            g.dispose();
            ImageIO.write(big, "png", new File("D/aa/jack.png"));
            System.out.println("成功");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }*/

    public static void main(String[] args) {

        PicUtil tt = new PicUtil();

        BufferedImage addImage = tt.loadImageLocal("D:/new.png");
        BufferedImage originalImage = tt.loadImageLocal("D:/aa/bg.png");
        //往图片上写文件
       
　　　　 // overlapImage("D:/aa/bg.png", "D:/new.png");

　  　　//将多张图片合在一起       
　　　　　tt.writeImageLocal("D:/aa/cc.png", tt.modifyImagetogeter(addImage, originalImage));    

        System.out.println("success");
      
    }

}