用Java为图片添加水印的源代码

如何用java 添加水印

 

 import java.awt.*;
 import java.awt.event.*;
 import java.io.*;
 import java.awt.image.*;
 import org.w3c.dom.*;
 import com.sun.image.codec.jpeg.*;
 import javax.imageio.*;
 /**
 author myweb
 */
 public class ImgBean{
 public void ImgBean(){}
 public void ImgYin(String s,String ImgName){
 try{
 File _file = new File(ImgName);
 Image src = ImageIO.read(_file);
 int wideth=src.getWidth(null);
 int height=src.getHeight(null);
 BufferedImage image=new BufferedImage(wideth,height,BufferedImage.TYPE_INT_RGB);
 Graphics g=image.createGraphics();
 g.drawImage(src,0,0,wideth,height,null);
 String s="我要加的水印 ，来源http://www.bt285.cn BT下载";
 g.setColor(Color.RED);
 g.setFont(new Font("宋体",Font.PLAIN,20));
 Font aa=new Font("宋体",Font.PLAIN,20);
 g.drawString(s,wideth-150,height-10);
 g.dispose();
 FileOutputStream out=new FileOutputStream(ImgName);
 JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
 encoder.encode(image);
 out.close();
 }
 catch(Exception e){
 System.out.println(e);
 }
 }
 }