Java图片加文字水印

import java.awt.Color;

import java.awt.Font;

import java.awt.Graphics;

import java.awt.Image;

import java.awt.image.BufferedImage;

import java.io.File;

import java.io.FileOutputStream;

import javax.imageio.ImageIO;

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

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

/**

 * 图片加文字水印

 * @author InJavaWeTrust

 *

 */

public class Watermark {

	/**

	 * 图片加文字水印

	 * @param text 文字

	 * @param targetImg 目标图片

	 * @param fontName 字体名

	 * @param fontStyle 字体样式

	 * @param color 字体颜色

	 * @param fontSize 字体大小

	 * @param x 文字x坐标

	 * @param y 文字y坐标

	 */

	public static void watermark(String text, String targetImg,

			String fontName, int fontStyle, Color color, int fontSize, int x,

			int y) {

		try {

            File _file = new File(targetImg);

            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);

            g.setColor(color);

            g.setFont(new Font(fontName, fontStyle, fontSize));

            g.drawString(text, wideth - fontSize - x, height - fontSize

                    / 2 - y);

            g.dispose();

            FileOutputStream out = new FileOutputStream(targetImg);

            JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);

            encoder.encode(image);

            out.close();

        } catch (Exception e) {

            System.out.println(e);

        }

	}

	public static void main(String[] args) {

		String text = "http://injavawetrust.iteye.com";

		String targetImg = "C:\\Users\\admin\\Desktop\\ch\\state.png";

		watermark(text, targetImg, null, Font.BOLD, Color.RED, 20, 240, 10);

	}

}