diff --git a/src/main/java/com/supervision/police/service/impl/ComDictionaryServiceImpl.java b/src/main/java/com/supervision/police/service/impl/ComDictionaryServiceImpl.java
index fe38919..e67a7b8 100644
--- a/src/main/java/com/supervision/police/service/impl/ComDictionaryServiceImpl.java
+++ b/src/main/java/com/supervision/police/service/impl/ComDictionaryServiceImpl.java
@@ -1,5 +1,6 @@
 package com.supervision.police.service.impl;
 
+import cn.hutool.core.collection.CollUtil;
 import com.baomidou.mybatisplus.core.conditions.Wrapper;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.core.metadata.IPage;
@@ -68,30 +69,33 @@ public class ComDictionaryServiceImpl extends ServiceImpl<ComDictionaryMapper, C
      */
     private Map<String, List<ComDictionary>> queryDictionary(DictionaryByTypeParam dictionaryByTypeParam) {
         Map<String,List<ComDictionary>> resultMap = new HashMap<>();
-        List<String> typeList = new ArrayList<>();
-        if (dictionaryByTypeParam.getList() == null || dictionaryByTypeParam.getList().size() <=0) {
-            typeList = comDictionaryMapper.queryAllType();
-        } else {
-            typeList = dictionaryByTypeParam.getList();
-        }
+
+        List<String> typeList = CollUtil.isEmpty(dictionaryByTypeParam.getList()) ?
+                comDictionaryMapper.queryAllType() : dictionaryByTypeParam.getList();
+
         for (String dictType : typeList) {
-            List<ComDictionary> queryList = new ArrayList<>();
+            List<ComDictionary> queryList;
             List<ComDictionary> otherList = new ArrayList<>();
             ComDictionary comDictionary = new ComDictionary();
             comDictionary.setType(dictType);
             Wrapper<ComDictionary> wrapper = Wrappers.query(comDictionary);
             queryList = this.comDictionaryMapper.selectList(wrapper);
             changeTree(queryList,otherList);
-            if (otherList.size() > 1) {
-                if (dictionaryByTypeParam.getIsTree() != null && dictionaryByTypeParam.getIsTree() == 0) {
+
+            if (CollUtil.size(otherList) > 1) {
+                // 平铺数据
+                if (Integer.valueOf(0).equals(dictionaryByTypeParam.getIsTree())) {
                     resultMap.put(dictType,queryList);
                 }else {
+                    // 树形数据
                     resultMap.put(dictType,otherList);
                 }
             } else {
-                if (dictionaryByTypeParam.getIsTree() != null && dictionaryByTypeParam.getIsTree() == 0){
+                // 平铺数据
+                if (Integer.valueOf(0).equals(dictionaryByTypeParam.getIsTree())){
                     resultMap.put(dictType,otherList.get(0).getChild());
                 }else {
+                    // 树形数据
                     resultMap.put(dictType,otherList);
                 }
             }
@@ -129,7 +133,7 @@ public class ComDictionaryServiceImpl extends ServiceImpl<ComDictionaryMapper, C
         // 先找到所有的一级菜单
         for (ComDictionary comDictionary : queryList) {
             // 一级菜单没有parentId
-            if (comDictionary.getPid() == null || comDictionary.getPid() == 0l) {
+            if (Long.valueOf(0L).equals(comDictionary.getPid())) {
                 resultList.add(comDictionary);
             }
         }