diff --git a/bizlog-sdk/src/main/java/com/mzt/logapi/service/impl/DiffParseFunction.java b/bizlog-sdk/src/main/java/com/mzt/logapi/service/impl/DiffParseFunction.java
index e348db1..2e87d6f 100644
--- a/bizlog-sdk/src/main/java/com/mzt/logapi/service/impl/DiffParseFunction.java
+++ b/bizlog-sdk/src/main/java/com/mzt/logapi/service/impl/DiffParseFunction.java
@@ -48,7 +48,7 @@ public String diff(Object source, Object target) {
                 throw new RuntimeException(e);
             }
         }
-        if (!Objects.equals(AopUtils.getTargetClass(source.getClass()), AopUtils.getTargetClass(target.getClass()))) {
+        if (!Objects.equals(AopUtils.getTargetClass(source), AopUtils.getTargetClass(target))) {
             log.error("diff的两个对象类型不同, source.class={}, target.class={}", source.getClass().toString(), target.getClass().toString());
             return "";
         }