diff --git a/src/main/java/com/bsd/cases/service/impl/CaseCategoryServiceImpl.java b/src/main/java/com/bsd/cases/service/impl/CaseCategoryServiceImpl.java
index 0332d36..c531ca6 100644
--- a/src/main/java/com/bsd/cases/service/impl/CaseCategoryServiceImpl.java
+++ b/src/main/java/com/bsd/cases/service/impl/CaseCategoryServiceImpl.java
@@ -46,14 +46,26 @@ public class CaseCategoryServiceImpl extends BaseServiceImpl<CaseCategoryMapper,
     @Override
     public JSONObject getAllCaseCategory() {
         JSONObject jsonObject = new JSONObject();
-        CaseCategory findCaseCategory1 = new CaseCategory();
-        findCaseCategory1.setLevel(1);
-        findCaseCategory1.setState(Constants.STATE_VALID);
-        List<CaseCategory> caseCategoryList1 = caseCategoryMapper.select(findCaseCategory1);
-        CaseCategory findCaseCategory2 = new CaseCategory();
-        findCaseCategory2.setLevel(2);
-        findCaseCategory2.setState(Constants.STATE_VALID);
-        List<CaseCategory> caseCategoryList2 = caseCategoryMapper.select(findCaseCategory2);
+        Example example2 = new Example(CaseCategory.class);
+        example2.setOrderByClause("update_date_time DESC");
+        Example.Criteria criteria2 = example2.createCriteria();
+        criteria2.andEqualTo("state",Constants.STATE_VALID);
+        criteria2.andEqualTo("level",1);
+        List<CaseCategory> caseCategoryList1 = caseCategoryMapper.selectByExample(example2);
+//        CaseCategory findCaseCategory1 = new CaseCategory();
+//        findCaseCategory1.setLevel(1);
+//        findCaseCategory1.setState(Constants.STATE_VALID);
+//        List<CaseCategory> caseCategoryList1 = caseCategoryMapper.select(findCaseCategory1);
+//        CaseCategory findCaseCategory2 = new CaseCategory();
+//        findCaseCategory2.setLevel(2);
+//        findCaseCategory2.setState(Constants.STATE_VALID);
+//        List<CaseCategory> caseCategoryList2 = caseCategoryMapper.select(findCaseCategory2);
+        Example example = new Example(CaseCategory.class);
+        example.setOrderByClause("update_date_time DESC");
+        Example.Criteria criteria = example.createCriteria();
+        criteria.andEqualTo("state",Constants.STATE_VALID);
+        criteria.andEqualTo("level",2);
+        List<CaseCategory> caseCategoryList2 = caseCategoryMapper.selectByExample(example);
         jsonObject.put("level1",caseCategoryList1);
         jsonObject.put("level2",caseCategoryList2);
         return jsonObject;