update

mec-biz/src/main/java/com/ym/mec/biz/service/impl/SysMessageServiceImpl.java

@@ -273,11 +273,11 @@ public class SysMessageServiceImpl extends BaseServiceImpl<Long, SysMessage> imp
 	public void batchSendImGroupMessage(String[] targetIds,String senderId,String extra,String imgUrl ) throws Exception {
 		URL url = new URL(imgUrl);
 		//获取文件名
-		String path = url.getPath();
-		String suffix = path.substring(path.lastIndexOf(".") + 1);
+//		String path = url.getPath();
+//		String suffix = path.substring(path.lastIndexOf(".") + 1);
 		BufferedImage bufferedImage = Thumbnails.of(url).scale(0.1f).outputQuality(0.25f).asBufferedImage();
 		ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
-		ImageIO.write(bufferedImage, suffix, outputStream);
+		ImageIO.write(bufferedImage, "png", outputStream);
 		byte[] bytes = outputStream.toByteArray();
 		outputStream.close();
 		int length = bytes.length;
@@ -286,7 +286,7 @@ public class SysMessageServiceImpl extends BaseServiceImpl<Long, SysMessage> imp
 			throw new BizException("文件过大请调整 像素 或 文件大小");
 		}
 		ImMessageDto imMessageDto =
-				getImGroupMessage("RC:ImgMsg",senderId,targetIds,imageToBase64(bufferedImage, suffix),extra);
+				getImGroupMessage("RC:ImgMsg",senderId,targetIds,imageToBase64(bufferedImage, "png"),extra);
 		imMessageDto.setFileUrl(imgUrl);
 		ExecutorService executor = Executors.newCachedThreadPool();
 		CompletableFuture.runAsync(()->{