优化imageIo读取

haoban-manage3-service/src/main/java/com/gic/haoban/manage/service/context/combined/ImageCombined.java

@@ -9,11 +9,15 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import javax.imageio.ImageIO;
+import javax.imageio.ImageReader;
+import javax.imageio.stream.ImageInputStream;
 import java.awt.*;
 import java.awt.image.BufferedImage;
 import java.io.ByteArrayOutputStream;
 import java.io.File;
+import java.io.IOException;
 import java.net.URL;
+import java.util.Iterator;
 import java.util.concurrent.TimeUnit;
 
 /**
@@ -38,11 +42,11 @@ public class ImageCombined {
     private static final int QR_WIDTH_REFERENCE = 136;
 
 
-    private static final String LARGE_IMAGE_URL = "https://jhdmyx-1251519181.cos.ap-shanghai.myqcloud.com/image/material_content-2e81265ed1bf4c4d8a623d6b04942767.jpeg?imageView2/2/w/1080/h/10800/format/jpg";
+    private static final String LARGE_IMAGE_URL = "https://wcy-1251519181.cos.ap-shanghai.myqcloud.com/image/material_content-0e89ce4dc0454998a16e5295a32e13ba.jpg?imageView2/2/w/1080/h/10800/format/jpg";
     private static final String QR_CODE_URL = "https://gicinner-1251519181.cos.ap-shanghai.myqcloud.com/image/material_content-4ffc77073ca1476fb264bf1be9f11383.png";
     private static final String STORE_NAME = "门店CCA";
     private static final String GUIDE_NAME = "宇智222为您推荐";
-    private static final String OUTPUT_PATH = "/Users/wang/Downloads/output_image3.jpg";
+    private static final String OUTPUT_PATH = "/Users/wang/Downloads/output_image4.jpg";
 
     static {
         ImageIO.scanForPlugins();  // 初始化图像插件
@@ -70,7 +74,7 @@ public class ImageCombined {
         //压缩图片的参数
         imageUrl = imageUrl + "?imageView2/2/w/1080/h/10800/format/jpg";
         BufferedImage largeImage = loadImageWithCache(imageUrl);
-        BufferedImage qrCodeImage = ImageIO.read(new URL(qrCodeUrl));
+        BufferedImage qrCodeImage = loadImageWithReader(qrCodeUrl);
         if (largeImage == null || qrCodeImage == null) {
             return null;
         }
@@ -84,16 +88,33 @@ public class ImageCombined {
         }
     }
 
+    private static BufferedImage loadImageWithReader(String url) {
+        try {
+            URL imageUrl = new URL(url);
+            ImageInputStream input = ImageIO.createImageInputStream(imageUrl.openStream());
+            Iterator<ImageReader> readers = ImageIO.getImageReaders(input);
+            if (readers.hasNext()) {
+                ImageReader reader = readers.next();
+                reader.setInput(input, true);
+                return reader.read(0);
+            }
+        } catch (IOException e) {
+            logger.error("读取异常: {}", url, e);
+        }
+        return null;
+    }
+
+
     /**
      * 从缓存中加载图像
      */
     private static BufferedImage loadImageWithCache(String url) {
         return imageCache.get(url, key -> {
             try {
-                logger.info("加载图片buffered:{},key:{}",url,key);
-                return ImageIO.read(new URL(key));
+                logger.info("加载图片buffered:{},key:{}", url, key);
+                return loadImageWithReader(key);  // 使用读取器方法
             } catch (Exception e) {
-                logger.info("获取图片异常",e);
+                logger.error("获取图片异常", e);
                 return null;
             }
         });
@@ -104,7 +125,7 @@ public class ImageCombined {
         logger.info("合成图片开始");
         int width = image.getWidth();
         int height = image.getHeight();
-
+        int qrWidth = QR_WIDTH_REFERENCE;
         if (showStyle == 1) {
             if (height > MAX_HEIGHT_NO_WHITE_SPACE) {
                 width = width * MAX_HEIGHT_NO_WHITE_SPACE / height;
@@ -124,10 +145,8 @@ public class ImageCombined {
 
         Graphics2D g = combinedImage.createGraphics();
         g.drawImage(resizedImage, 0, 0, null);
-
-        int qrWidth = width * QR_WIDTH_REFERENCE / 750;
-        if (width <= MIN_WIDTH) {
-            qrWidth = 136;
+        if (showStyle == 1) {
+            qrWidth = width * QR_WIDTH_REFERENCE / 750;
         }
         BufferedImage resizedQRCode = Thumbnails.of(qrCode).size(qrWidth, qrWidth).asBufferedImage();