[feat]增加旋转脚本

dk-modules/business/src/main/java/org/dromara/business/utils/ImageRotator.java

@@ -10,6 +10,7 @@ import java.io.IOException;
 import java.net.URL;
 import java.util.Base64;
 
+
 public class ImageRotator {
 
     /**
@@ -21,6 +22,7 @@ public class ImageRotator {
      */
     public static String rotateAndOverlayImage(String sourceImagePath, String targetImagePath, double angle) {
         try {
+
             URL resourceUrl = ImageRotator.class.getClassLoader().getResource("templates/1.png");
             URL targetUrl = ImageRotator.class.getClassLoader().getResource("templates/2.png");
 
@@ -33,9 +35,9 @@ public class ImageRotator {
 
             // 创建新的画布，使用目标图片的尺寸
             BufferedImage resultImage = new BufferedImage(
-                targetImage.getWidth(),
-                targetImage.getHeight(),
-                BufferedImage.TYPE_INT_ARGB
+                    targetImage.getWidth(),
+                    targetImage.getHeight(),
+                    BufferedImage.TYPE_INT_ARGB
             );
 
             // 创建图形上下文
@@ -99,7 +101,7 @@ public class ImageRotator {
     private static String convertToBase64(BufferedImage image) {
         try {
             ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
-            ImageIO.write(image, "jpeg", outputStream);
+            ImageIO.write(image, "PNG", outputStream);
             byte[] imageBytes = outputStream.toByteArray();
             return Base64.getEncoder().encodeToString(imageBytes);
         } catch (IOException e) {
@@ -112,7 +114,7 @@ public class ImageRotator {
     public static void main(String[] args) {
         String sourceImagePath = "C:\\Users\\Administrator\\Desktop\\1.png";  // 源图片路径
         String targetImagePath = "C:\\Users\\Administrator\\Desktop\\2.png";  // 目标图片路径
-        double angle = 90;  // 旋转角度
+        double angle = 45.0;  // 旋转角度
 
         String base64Result = rotateAndOverlayImage(sourceImagePath, targetImagePath, angle);
         if (base64Result != null) {