添加水印图片

one-certificate-manager/pom.xml

@@ -159,6 +159,12 @@
             <artifactId>javase</artifactId>
             <version>3.4.1</version>
         </dependency>
+
+		<dependency>
+			<groupId>net.coobird</groupId>
+			<artifactId>thumbnailator</artifactId>
+			<version>0.4.20</version>
+		</dependency>
     </dependencies>
 
 	<build>

one-certificate-manager/src/main/java/com/mortals/xhx/common/utils/WatermarkImgUtils.java

@@ -2,6 +2,9 @@ package com.mortals.xhx.common.utils;
 
 import com.mortals.xhx.module.record.web.ApplyLogController;
 import lombok.extern.slf4j.Slf4j;
+import net.coobird.thumbnailator.Thumbnails;
+import net.coobird.thumbnailator.filters.Watermark;
+import net.coobird.thumbnailator.geometry.Positions;
 
 import javax.imageio.ImageIO;
 import javax.swing.*;
@@ -9,6 +12,7 @@ import java.awt.*;
 import java.awt.image.BufferedImage;
 import java.io.File;
 import java.io.FileOutputStream;
+import java.io.IOException;
 import java.io.OutputStream;
 
 @Slf4j
@@ -24,6 +28,21 @@ public class WatermarkImgUtils {
      * @return void
      */
     public static void addWatermark(String sourceImgPath, String tarImgPath, String waterMarkContent,String fileExt){
+      //todo
+        try {
+            BufferedImage read = ImageIO.read(new File(sourceImgPath));
+            BufferedImage bi = waterMarkByText(read.getWidth(),read.getHeight(),waterMarkContent,Color.RED,
+                    new Font("宋体", Font.BOLD, 100),45.0,0.3f,sourceImgPath);
+            ImageIO.write(bi, fileExt, new File(tarImgPath));
+        } catch (IOException e) {
+          log.error("添加水印失败",e);
+        }
+
+
+
+     /* return;
+
+
         Font font = new Font("宋体", Font.BOLD, 100);//水印字体，大小
         Color markContentColor = Color.red;//水印颜色
         Integer degree = 45;//设置水印文字的旋转角度
@@ -59,7 +78,7 @@ public class WatermarkImgUtils {
 
             g.drawString(waterMarkContent, width-150 , - 280);
 
-/*            for(int j=0;j<rowsNumber;j++){
+*//*            for(int j=0;j<rowsNumber;j++){
                 boolean bool=false;
                 for(int i=0;i<columnsNumber;i++){
                     g.drawString(waterMarkContent, i*width + j*width, -i*width + j*width);//画出水印,并设置水印位置
@@ -67,7 +86,7 @@ public class WatermarkImgUtils {
                    break;
                 }
                 if (bool) break;
-            }*/
+            }*//*
             g.dispose();// 释放资源
             // 输出图片
             log.info("生成水印图片路径：{}",tarImgPath);
@@ -85,13 +104,122 @@ public class WatermarkImgUtils {
                 e.printStackTrace();
                 e.getMessage();
             }
+        }*/
+    }
+
+    /**
+     * 生成背景透明的 文字水印
+     *
+     * @param width     生成图片宽度
+     * @param height    生成图片高度
+     * @param text      水印文字
+     * @param color     颜色对象
+     * @param font      awt字体
+     * @param degree    水印文字旋转角度
+     * @param alpha     水印不透明度0f-1.0f
+     * @param imagePath 图片地址
+     */
+    public static BufferedImage waterMarkByText(int width, int height, String text, Color color, Font font, Double degree, float alpha, String imagePath) {
+        BufferedImage buffImg = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
+        // 得到画笔对象
+        Graphics2D g2d = buffImg.createGraphics();
+        // 增加下面的代码使得背景透明
+        buffImg = g2d.getDeviceConfiguration().createCompatibleImage(width, height, Transparency.TRANSLUCENT);
+        g2d.dispose();
+        g2d = buffImg.createGraphics();
+
+        // 设置对线段的锯齿状边缘处理
+        g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
+
+        //把源图片写入
+        if (imagePath != null && !imagePath.equals("")) {
+            try {
+                Image srcImg = ImageIO.read(new File(imagePath));
+                Image image = srcImg.getScaledInstance(srcImg.getWidth(null), srcImg.getHeight(null), Image.SCALE_SMOOTH);
+                g2d.drawImage(image, 0, 0, null);
+            } catch (IOException e) {
+                log.error("生成水印图片异常：",e);
+            }
+        }
+
+        // 设置水印旋转
+        if (null != degree) {
+            //注意rotate函数参数theta，为弧度制，故需用Math.toRadians转换一下
+            //以矩形区域中央为圆心旋转
+            g2d.rotate(Math.toRadians(degree), (double) buffImg.getWidth() / 2, (double) buffImg.getHeight() / 2);
+        }
+
+        // 设置颜色
+        g2d.setColor(color);
+
+        // 设置 Font
+        g2d.setFont(font);
+
+        // 设置透明度:1.0f为透明度 ，值从0-1.0，依次变得不透明
+        g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, alpha));
+
+        // 获取真实宽度
+        float realWidth = getRealFontWidth(text);
+        float fontSize = font.getSize();
+
+        // 计算绘图偏移x、y，使得使得水印文字在图片中居中,x、y坐标是基于Graphics2D.rotate过后的坐标系
+        float x = 0.5f * width - 0.5f * fontSize * realWidth;
+        float y = 0.5f * height + 0.5f * fontSize;
+
+        // 取绘制的字串宽度、高度中间点进行偏移，使得文字在图片坐标中居中
+        g2d.drawString(text, x, y);
+        // 释放资源
+        g2d.dispose();
+        return buffImg;
+    }
+
+
+    /**
+     * 获取真实字符串宽度，ascii字符占用0.5，中文字符占用1.0
+     *
+     * @param text 文字
+     * @return 宽度
+     */
+    private static float getRealFontWidth(String text) {
+        int len = text.length();
+        float width = 0f;
+        for (int i = 0; i < len; i++) {
+            if (text.charAt(i) < 256) {
+                width += 0.5f;
+            } else {
+                width += 1.0f;
+            }
         }
+        return width;
     }
 
-    public static void main(String[] args) {
 
-        WatermarkImgUtils.addWatermark("E:\\pic\\1724379763618.jpg", "E:\\pic\\1724379763618_water1.jpg", "广安市一业一证（照）一码", "jpg");
+    public static void main(String[] args) throws IOException {
+
+       WatermarkImgUtils.addWatermark("E:\\pic\\1724379763618.jpg", "E:\\pic\\1724379763618_water5.jpg", "广安市一业一证（照）一码", "png");
+
+/*
+        File watermarkFile = new File("watermark.png");
+        BufferedImage watermarkImage = ImageIO.read(watermarkFile);
+
+        Watermark watermark = new Watermark(Positions.CENTER, watermarkImage, 0.5f);
+
+        Thumbnails.of("E:\\pic\\1724379763618.jpg").watermark(watermark).toFile("E:\\pic\\1724379763618_water2.jpg");
+*/
 
+//int width, int height, String text, Color color, Font font, Double degree, float alpha, String imagePath
+
+
+/*        String sourceImage="E:\\pic\\1724379763618.jpg";
+        BufferedImage read = ImageIO.read(new File(sourceImage));
+
+        try {
+            BufferedImage bi = waterMarkByText(read.getWidth(),read.getHeight(),"广安市一业一证（照）一码",Color.RED,
+                    new Font("宋体", Font.BOLD, 100),45.0,0.3f,sourceImage);
+            ImageIO.write(bi, "png", new File("E:\\pic\\1724379763618_water3.png"));
+        } catch (IOException e) {
+            e.printStackTrace();
+        }*/
 
     }
 }

one-certificate-manager/src/main/java/com/mortals/xhx/module/record/web/ApplyLogController.java

@@ -21,6 +21,8 @@ import com.mortals.xhx.module.certificate.model.vo.CertificateDocumentPdu;
 import com.mortals.xhx.module.certificate.service.CertificateCatalogService;
 import com.mortals.xhx.module.certificate.service.CertificateDocumentService;
 import com.mortals.xhx.module.certificate.service.CertificateIndustryService;
+import net.coobird.thumbnailator.Thumbnailator;
+import net.coobird.thumbnailator.Thumbnails;
 import org.apache.poi.ss.usermodel.PictureData;
 import org.springframework.beans.BeanUtils;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -318,7 +320,9 @@ public class ApplyLogController extends BaseCRUDJsonBodyMappingController<ApplyL
                     0, //y坐标修正值。 默认在中间，偏移量相对于中间偏移
                     0.5f//透明度：alpha 必须是范围 [0.0, 1.0] 之内（包含边界值）的一个浮点数字
             );
+        //Thumbnails.of()
 
+       // new Thumbnailator();
 
     }