java向图片上写字,两个图片合并的方法

package writeimg;  
import javax.imageio.ImageIO;  
import java.awt.Color;  
import java.awt.Font;  
import java.awt.Graphics2D;  
import java.awt.image.BufferedImage;  
import java.io.File;  
import java.io.IOException;  
import java.net.URL;  
  
  
public class pic {  
  
    private Font font = new Font("华文彩云", Font.PLAIN, 40);// 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, "jpg", 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("reyo.cn", w - 85, h - 5);  
            g.dispose();  
        } catch (Exception e) {  
            System.out.println(e.getMessage());  
        }  
  
        return img;  
    }  
  
    public BufferedImage modifyImagetogeter(BufferedImage b, BufferedImage d) {  
  
        try {  
            int w = b.getWidth();  
            int h = b.getHeight();  
              
  
            g = d.createGraphics();  
            g.drawImage(b, 100, 10, w, h, null);  
            g.dispose();  
        } catch (Exception e) {  
            System.out.println(e.getMessage());  
        }  
  
        return d;  
    }  
  
    public static void main(String[] args) {  
  
        pic tt = new pic();  
  
        BufferedImage d = tt.loadImageLocal("D:\11.jpg");  
//      BufferedImage b = tt  
//              .loadImageLocal("E:\文件(word,excel,pdf,ppt.txt)\zte-logo.png");  
         tt.writeImageLocal("D:\cc.jpg",tt.modifyImage(d,"西昌苹果",90,90)  
        //往图片上写文件  
         );  
  
        //tt.writeImageLocal("D:\cc.jpg", tt.modifyImagetogeter(b, d));  
        //将多张图片合在一起  
        System.out.println("success");  
    }  
  
} 

　　原文：http://www.cnblogs.com/interdrp/archive/2013/03/04/2942559.html