diff --git a/spzx-manager/src/main/java/com/atguigu/spzx/manger/mapper/SysMenuMapper.java b/spzx-manager/src/main/java/com/atguigu/spzx/manger/mapper/SysMenuMapper.java
index e44fdaf..16e76ea 100644
--- a/spzx-manager/src/main/java/com/atguigu/spzx/manger/mapper/SysMenuMapper.java
+++ b/spzx-manager/src/main/java/com/atguigu/spzx/manger/mapper/SysMenuMapper.java
@@ -50,4 +50,12 @@ public interface SysMenuMapper {
      * @return 菜单列表
      */
     List<SysMenu> selectListByUserId(Long userId);
+
+    /**
+     * 根据父级ID查询菜单
+     *
+     * @param id 父级ID
+     * @return 系统菜单实体类
+     */
+    SysMenu selectParentMenu(Long id);
 }
diff --git a/spzx-manager/src/main/java/com/atguigu/spzx/manger/mapper/SysRoleMenuMapper.java b/spzx-manager/src/main/java/com/atguigu/spzx/manger/mapper/SysRoleMenuMapper.java
index 9fb5940..018165b 100644
--- a/spzx-manager/src/main/java/com/atguigu/spzx/manger/mapper/SysRoleMenuMapper.java
+++ b/spzx-manager/src/main/java/com/atguigu/spzx/manger/mapper/SysRoleMenuMapper.java
@@ -12,4 +12,11 @@ public interface SysRoleMenuMapper {
     void doAssign(AssginMenuDto assginMenuDto);
 
     void deleteByRoleId(Long roleId);
+
+    /**
+     * 将该id的菜单设置为半开
+     *
+     * @param parentId 父级ID
+     */
+    void updateSysRoleMenuIsHalf(Long parentId);
 }
diff --git a/spzx-manager/src/main/java/com/atguigu/spzx/manger/service/impl/SysMenuServiceImpl.java b/spzx-manager/src/main/java/com/atguigu/spzx/manger/service/impl/SysMenuServiceImpl.java
index 9d0ee0f..5a67cf6 100644
--- a/spzx-manager/src/main/java/com/atguigu/spzx/manger/service/impl/SysMenuServiceImpl.java
+++ b/spzx-manager/src/main/java/com/atguigu/spzx/manger/service/impl/SysMenuServiceImpl.java
@@ -5,6 +5,7 @@ import com.atguigu.context.BaseContext;
 import com.atguigu.exception.BunnyException;
 import com.atguigu.spzx.manger.mapper.SysMenuMapper;
 import com.atguigu.spzx.manger.service.SysMenuService;
+import com.atguigu.spzx.manger.service.module.SysMenuServiceImplModule;
 import com.atguigu.spzx.model.entity.system.SysMenu;
 import com.atguigu.spzx.model.vo.system.SysMenuVo;
 import com.atguigu.utils.MenuHelper;
@@ -20,6 +21,8 @@ public class SysMenuServiceImpl implements SysMenuService {
     private SysMenuMapper sysMenuMapper;
     @Autowired
     private StringEmptyUtil emptyUtil;
+    @Autowired
+    private SysMenuServiceImplModule sysMenuServiceImplModule;
 
     /**
      * 查询菜单
@@ -39,6 +42,8 @@ public class SysMenuServiceImpl implements SysMenuService {
      */
     @Override
     public void save(SysMenu sysMenu) {
+        // 如果添加子菜单，把父菜单isHalf改为半开状态1
+        sysMenuServiceImplModule.updateSysRoleMenu(sysMenu);
         sysMenuMapper.insert(sysMenu);
     }
 
diff --git a/spzx-manager/src/main/java/com/atguigu/spzx/manger/service/module/SysMenuServiceImplModule.java b/spzx-manager/src/main/java/com/atguigu/spzx/manger/service/module/SysMenuServiceImplModule.java
new file mode 100644
index 0000000..d30dd19
--- /dev/null
+++ b/spzx-manager/src/main/java/com/atguigu/spzx/manger/service/module/SysMenuServiceImplModule.java
@@ -0,0 +1,32 @@
+package com.atguigu.spzx.manger.service.module;
+
+import com.atguigu.spzx.manger.mapper.SysMenuMapper;
+import com.atguigu.spzx.manger.mapper.SysRoleMenuMapper;
+import com.atguigu.spzx.manger.service.impl.SysMenuServiceImpl;
+import com.atguigu.spzx.model.entity.system.SysMenu;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+@Component
+public class SysMenuServiceImplModule extends SysMenuServiceImpl {
+    @Autowired
+    private SysMenuMapper sysMenuMapper;
+    @Autowired
+    private SysRoleMenuMapper sysRoleMenuMapper;
+
+    /**
+     * 添加子菜单，把父菜单半开状态改为1
+     *
+     * @param sysMenu 系统菜单实体类
+     */
+    public void updateSysRoleMenu(SysMenu sysMenu) {
+        // 查询是否存在父节点
+        SysMenu parentMenu = sysMenuMapper.selectParentMenu(sysMenu.getParentId());
+        if (parentMenu != null) {
+            // 将该id的菜单设置为半开
+            sysRoleMenuMapper.updateSysRoleMenuIsHalf(parentMenu.getParentId());
+            // 递归调用
+            updateSysRoleMenu(parentMenu);
+        }
+    }
+}
diff --git a/spzx-manager/src/main/resources/mapper/SysMenuMapper.xml b/spzx-manager/src/main/resources/mapper/SysMenuMapper.xml
index 59a0f42..c1b5185 100644
--- a/spzx-manager/src/main/resources/mapper/SysMenuMapper.xml
+++ b/spzx-manager/src/main/resources/mapper/SysMenuMapper.xml
@@ -62,6 +62,18 @@
 
     <!-- 根据用户ID查找 -->
     <select id="selectListByUserId" resultType="com.atguigu.spzx.model.entity.system.SysMenu">
+        SELECT distinct sm.*
+        FROM sys_menu sm
+                 INNER JOIN sys_role_menu srm ON sm.id = srm.menu_id
+                 INNER JOIN sys_user_role sur ON srm.role_id = sur.role_id
+            AND sur.user_id = #{userId}
+        WHERE sm.is_deleted = 0
+    </select>
 
+    <!-- 根据父级ID查询菜单 -->
+    <select id="selectParentMenu" resultType="com.atguigu.spzx.model.entity.system.SysMenu">
+        select
+        <include refid="columns"/>
+        from sys_menu where id = #{id}
     </select>
 </mapper>
diff --git a/spzx-manager/src/main/resources/mapper/SysRoleMenuMapper.xml b/spzx-manager/src/main/resources/mapper/SysRoleMenuMapper.xml
index 4ed45ec..e2037ff 100644
--- a/spzx-manager/src/main/resources/mapper/SysRoleMenuMapper.xml
+++ b/spzx-manager/src/main/resources/mapper/SysRoleMenuMapper.xml
@@ -2,6 +2,13 @@
 <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
 <mapper namespace="com.atguigu.spzx.manger.mapper.SysRoleMenuMapper">
 
+    <!-- 将该id的菜单设置为半开 -->
+    <update id="updateSysRoleMenuIsHalf">
+        update sys_role_menu srm
+        set srm.is_half = 1
+        where menu_id = #{parentId}
+    </update>
+
     <delete id="deleteByRoleId">
         delete
         from sys_role_menu
@@ -15,13 +22,9 @@
           and is_deleted = 0
           and is_half = 0
     </select>
-    
+
     <insert id="doAssign">
-        insert into sys_role_menu (
-        role_id,
-        menu_id,
-        create_time , update_time , is_deleted , is_half
-        ) values
+        insert into sys_role_menu ( role_id, menu_id, create_time , update_time , is_deleted , is_half ) values
         <foreach collection="menuIdList" item="menuInfo" separator=",">
             (#{roleId} , #{menuInfo.id} , now() , now() , 0 , #{menuInfo.isHalf})
         </foreach>