!337 update 运算符使用错误

Merge pull request !337 from Bleachtred/5.X

ruoyi-common/ruoyi-common-encrypt/src/main/java/org/dromara/common/encrypt/interceptor/MybatisEncryptInterceptor.java

@@ -75,7 +75,7 @@ public class MybatisEncryptInterceptor implements Interceptor {
             }
             // 判断第一个元素是否含有注解。如果没有直接返回，提高效率
             Object firstItem = list.get(0);
-            if (ObjectUtil.isNull(firstItem) && CollUtil.isEmpty(encryptorManager.getFieldCache(firstItem.getClass()))) {
+            if (ObjectUtil.isNull(firstItem) || CollUtil.isEmpty(encryptorManager.getFieldCache(firstItem.getClass()))) {
                 return;
             }
             list.forEach(this::encryptHandler);