Java图片加文字水印_JAVA_编程开发_程序员俱乐部

Java图片加文字水印

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class="java" name="code">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);
	}

}

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