解决乐观锁 updateById 父类对象无法找到异常 github issue 299

mybatis-plus-extension/src/main/java/com/baomidou/mybatisplus/extension/plugins/OptimisticLockerInterceptor.java

@@ -75,9 +75,11 @@ public class OptimisticLockerInterceptor implements Interceptor {
         if (param instanceof MapperMethod.ParamMap) {
             MapperMethod.ParamMap map = (MapperMethod.ParamMap) param;
             Wrapper ew = null;
-            if (map.containsKey(NAME_ENTITY_WRAPPER)) {//mapper.update(updEntity, EntityWrapper<>(whereEntity);
+            if (map.containsKey(NAME_ENTITY_WRAPPER)) {
+                // mapper.update(updEntity, EntityWrapper<>(whereEntity);
                 ew = (Wrapper) map.get(NAME_ENTITY_WRAPPER);
-            }//else updateById(entity) -->> change updateById(entity) to updateById(@Param("et") entity)
+            }
+            //else updateById(entity) -->> change updateById(entity) to updateById(@Param("et") entity)
 
             // TODO 待验证逻辑
             // if mannual sql or updagteById(entity),unsupport OCC,proceed as usual unless use updateById(@Param("et") entity)
@@ -104,7 +106,8 @@ public class OptimisticLockerInterceptor implements Interceptor {
             } else if (et != null) {
                 String methodId = ms.getId();
                 String updateMethodName = methodId.substring(ms.getId().lastIndexOf(".") + 1);
-                if (PARAM_UPDATE_METHOD_NAME.equals(updateMethodName)) {//update(entityClass, null) -->> update all. ignore version
+                if (PARAM_UPDATE_METHOD_NAME.equals(updateMethodName)) {
+                    // update(entityClass, null) -->> update all. ignore version
                     return invocation.proceed();
                 }
                 Class<?> entityClass = ClassUtils.getUserClass(et.getClass());
@@ -113,6 +116,11 @@ public class OptimisticLockerInterceptor implements Interceptor {
                 Object originalVersionVal;
                 if (versionField != null && (originalVersionVal = versionField.get(et)) != null) {
                     TableInfo tableInfo = TableInfoHelper.getTableInfo(entityClass);
+                    // fixed github 299
+                    while (null == tableInfo && null != entityClass) {
+                        entityClass = ClassUtils.getUserClass(entityClass.getSuperclass());
+                        tableInfo = TableInfoHelper.getTableInfo(entityClass);
+                    }
                     Map<String, Object> entityMap = new HashMap<>();
                     List<EntityField> fields = getEntityFields(entityClass);
                     for (EntityField ef : fields) {