Java图片插入文字或者图片，添加水印

水深无声 2023-07-20 10:43 18阅读 0赞

代码

public class WaterMarkUtils { 
        public static void main(String[] args) throws IOException { 
            //作者qq1023732997
            Font font = new Font("04b_08", Font.PLAIN, 30);//字体
            String sourceImg = "D:\\云上\\666.png"; //源图片地址
            String targetImg = "D:\\云上\\666.png"; //新存储的地址
            String sourceImgs = "D:\\云上\\sy.png"; //水印图
            String watermark = "甲骨文对方会觉得舒服大损福的私服付多少你付";//水印内容
            Color color = new Color(43, 43, 43);
            //添加文字
            addWatermark(sourceImg, targetImg, watermark, color, font);
            //为图片添加图片水印
            markImgMark(sourceImg, sourceImgs, targetImg);
            }
    
        /** * 为图片添加图片水印 * * @param watermarkUrl 原图 * @param source 水印图片 * @param output 制作完成的图片 * @return * @throws IOException */
        public static String markImgMark(String watermarkUrl, String source, String output) throws IOException { 
            String result = "添加图片水印出错";
            File file = new File(source);
            Image img = ImageIO.read(file);
            int width = img.getWidth(null);//水印宽度
            int height = img.getHeight(null);//水印高
            BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
            Graphics2D g = bi.createGraphics();
            g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
            g.drawImage(img.getScaledInstance(width, height, Image.SCALE_SMOOTH), 0, 0, null);
            ImageIcon imgIcon = new ImageIcon(watermarkUrl);
            Image con = imgIcon.getImage();
            float clarity = 0.6f;//透明度
            g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP, clarity));
            g.drawImage(con, 10, 10, null);//水印的位置
            g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER));
            g.dispose();
            File sf = new File(output);
            ImageIO.write(bi, "jpg", sf); // 保存图片
            System.out.println("添加图片水印成功");
            return result;
        }
    
        /** * 设置文字水印 * * @param sourceImg 源图片路径 * @param targetImg 保存的图片路径 * @param watermark 水印内容 * @param color 水印颜色 * @param font 水印字体 * @throws IOException */
        public static void addWatermark(String sourceImg, String targetImg, String watermark, Color color, Font font) throws IOException { 
            File srcImgFile = new File(sourceImg);
            Image srcImg = ImageIO.read(srcImgFile);
            int srcImgWidth = srcImg.getWidth(null);
            int srcImgHeight = srcImg.getHeight(null);
            BufferedImage bufImg = new BufferedImage(srcImgWidth, srcImgHeight, BufferedImage.TYPE_INT_RGB);
            Graphics2D g = bufImg.createGraphics();
            g.drawImage(srcImg, 0, 0, srcImgWidth, srcImgHeight, null);
            g.setColor(color);
            g.setFont(font);
            //设置水印的坐标
            int x = srcImgWidth - (g.getFontMetrics(g.getFont()).charsWidth(watermark.toCharArray(), 0, watermark.length()) + 200);
            int y = srcImgHeight - 600;
            g.drawString(watermark, x, y);  //加水印
            g.dispose();
            // 输出图片
            FileOutputStream outImgStream = new FileOutputStream(targetImg);
            ImageIO.write(bufImg, "jpg", outImgStream);
            System.out.println("添加水印完成");
            outImgStream.flush();
            outImgStream.close();
        }
        }