bug fixed

wisenergy-web-admin/src/main/java/cn/wisenergy/web/admin/controller/app/LoginController.java

@@ -149,14 +149,15 @@ public class LoginController {
             config.setCharset(StandardCharsets.UTF_8);
             config.setMargin(0);
             BufferedImage waterImage = QrCodeUtil.generate(regFullUrl, config);
-            byte[] bytes = ImageUtil.watermarkImageSimple1(srcImage, waterImage);
+            //byte[] bytes = ImageUtil.watermarkImageSimple1(srcImage, waterImage);
             ByteArrayOutputStream out = new ByteArrayOutputStream();
             ImageIO.write(waterImage, "jpg", out);
+            byte[] bytes = out.toByteArray();
 
             HttpHeaders headers = new HttpHeaders();
             headers.setContentType(MediaType.IMAGE_JPEG);
             headers.setContentLength(bytes.length);
-            return new ResponseEntity<>(out.toByteArray(), headers, HttpStatus.OK);
+            return new ResponseEntity<>(bytes, headers, HttpStatus.OK);
         }
         return null;
     }