JAVA给图片添加水印

package com.lzw.code;



import java.awt.Color;

import java.awt.Graphics2D;

import java.awt.Image;

import java.awt.image.BufferedImage;

import java.io.FileOutputStream;



import javax.swing.ImageIcon;



import com.sun.image.codec.jpeg.JPEGCodec;

import com.sun.image.codec.jpeg.JPEGEncodeParam;

import com.sun.image.codec.jpeg.JPEGImageEncoder;



public class WaterMark {

    /**

     * 给图片添加水印

     * @param filePath  需要添加水印的图片的路径

     * @param markContent 水印的文字

     * @param markContentColor 水印文字的颜色

     * @param qualNum 图片质量

     * @param watermark 水印ICON

     * @return

     */

    public boolean createMark(String filePath, String markContent,

	    Color markContentColor, float qualNum, String watermark) {

	ImageIcon imgIcon = new ImageIcon(filePath);

	Image theImg = imgIcon.getImage();

	int width = theImg.getWidth(null);

	int height = theImg.getHeight(null);

//	 ImageIcon waterIcon=new ImageIcon(watermark);

//	 Image waterImg =waterIcon.getImage();

	BufferedImage bimage = new BufferedImage(width, height,

		BufferedImage.TYPE_INT_RGB);

	Graphics2D g = bimage.createGraphics();

	g.setColor(markContentColor);

	g.setBackground(Color.white);

	g.drawImage(theImg, 0, 0, null);

//	 g.drawImage(waterImg, width*2, height, null );

	g.drawString(markContent, width - 100, height - 30); // 添加水印的文字和设置水印文字出现的内容

	g.dispose();

	try {

	    FileOutputStream out = new FileOutputStream(filePath);

	    JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);

	    JPEGEncodeParam param = encoder.getDefaultJPEGEncodeParam(bimage);

	    param.setQuality(qualNum, true);

	    encoder.encode(bimage, param);

	    out.close();

	} catch (Exception e) {

	    return false;

	}

	return true;

    }



    public static void main(String arg[]) {

	WaterMark wk = new WaterMark();

	if (wk.createMark("17724_1271926277dx8r.jpg", "罗章文", Color.RED, 100f, "4293561_1271579453zPVi.jpg")) {

	    System.out.println("制作成功");

	} else {

	    System.out.println("我失败了！");

	}

    }



}