java 图片加水印

清疚 2022-02-15 03:19 408阅读 0赞

![复制代码][copycode.gif]

package com.bomei.image;
    
    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;
     
    public final class ImageUtils {
        public ImageUtils() {
     
        }
     
        /*
         * public final static String getPressImgPath() { return ApplicationContext
         * .getRealPath("/template/data/util/shuiyin.gif"); }
         */
     
        /**
         * 把图片印刷到图片上
         * 
         * @param pressImg --
         *            水印文件
         * @param targetImg --
         *            目标文件
         * @param x
         *            --x坐标
         * @param y
         *            --y坐标
         */
        public final static void pressImage(String pressImg, String targetImg,
                int x, int y) {
            try {
                //目标文件
                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);
     
                //水印文件
                File _filebiao = new File(pressImg);
                Image src_biao = ImageIO.read(_filebiao);
                int wideth_biao = src_biao.getWidth(null);
                int height_biao = src_biao.getHeight(null);
                g.drawImage(src_biao, (wideth - wideth_biao) / 2,
                        (height - height_biao) / 2, wideth_biao, height_biao, null);
                //水印文件结束
                g.dispose();
                FileOutputStream out = new FileOutputStream(targetImg);
                JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
                encoder.encode(image);
                out.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
     
        /**
         * 打印文字水印图片
         * 
         * @param pressText
         *            --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 --
         *            偏移量
         * @param y
         */
     
        public static void pressText(String pressText, String targetImg,
                String fontName, int fontStyle, int 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);
                // String s="www.qhd.com.cn";
                g.setColor(Color.RED);
                g.setFont(new Font(fontName, fontStyle, fontSize));
     
                g.drawString(pressText, 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) {
    //        pressImage("c:/test/safeqrcode.jpg","c:/test/poster.png", 0, 0);
            pressImage("C:\\Users\\g.wang\\Desktop\\Two_Dimension_Code\\safeqrcode.jpg","c:/test/poster.png", 0, 0);
        }
    }

[copycode.gif]: /images/20220215/95f1fa6ca4794583af60d127c8d55fa1.png