update 优化 大数据量下join卡顿问题 使用子查询提高性能

ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/mapper/SysMenuMapper.java

@@ -18,13 +18,6 @@ import java.util.List;
  */
 public interface SysMenuMapper extends BaseMapperPlus<SysMenu, SysMenuVo> {
 
-    /**
-     * 根据用户所有权限
-     *
-     * @return 权限列表
-     */
-    List<String> selectMenuPerms();
-
     /**
      * 根据用户查询系统菜单列表
      *

ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysMenuServiceImpl.java

@@ -75,7 +75,7 @@ public class SysMenuServiceImpl implements ISysMenuService {
                 .orderByAsc(SysMenu::getOrderNum));
         } else {
             QueryWrapper<SysMenu> wrapper = Wrappers.query();
-            wrapper.eq("sur.user_id", userId)
+            wrapper.inSql("r.role_id", "select role_id from sys_user_role where user_id = " + userId)
                 .like(StringUtils.isNotBlank(menu.getMenuName()), "m.menu_name", menu.getMenuName())
                 .eq(StringUtils.isNotBlank(menu.getVisible()), "m.visible", menu.getVisible())
                 .eq(StringUtils.isNotBlank(menu.getStatus()), "m.status", menu.getStatus())

ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysRoleServiceImpl.java

@@ -103,7 +103,7 @@ public class SysRoleServiceImpl implements ISysRoleService {
      */
     @Override
     public List<SysRoleVo> selectRolesAuthByUserId(Long userId) {
-        List<SysRoleVo> userRoles = baseMapper.selectRolePermissionByUserId(userId);
+        List<SysRoleVo> userRoles = baseMapper.selectRolesByUserId(userId);
         List<SysRoleVo> roles = selectRoleAll();
         // 使用HashSet提高查找效率
         Set<Long> userRoleIds = userRoles.stream().map(SysRoleVo::getRoleId).collect(Collectors.toSet());
@@ -123,7 +123,7 @@ public class SysRoleServiceImpl implements ISysRoleService {
      */
     @Override
     public Set<String> selectRolePermissionByUserId(Long userId) {
-        List<SysRoleVo> perms = baseMapper.selectRolePermissionByUserId(userId);
+        List<SysRoleVo> perms = baseMapper.selectRolesByUserId(userId);
         Set<String> permsSet = new HashSet<>();
         for (SysRoleVo perm : perms) {
             if (ObjectUtil.isNotNull(perm)) {

ruoyi-modules/ruoyi-system/src/main/resources/mapper/system/SysMenuMapper.xml

@@ -12,8 +12,7 @@
         m.perms, m.is_frame, m.is_cache, m.menu_type, m.icon, m.order_num, m.create_time
         from sys_menu m
         left join sys_role_menu rm on m.menu_id = rm.menu_id
-        left join sys_user_role sur on rm.role_id = sur.role_id
-        left join sys_role ro on sur.role_id = ro.role_id
+        left join sys_role r on sur.role_id = r.role_id
         ${ew.getCustomSqlSegment}
     </select>
 
@@ -34,14 +33,10 @@
                         m.order_num,
                         m.create_time
         from sys_menu m
-                 left join sys_role_menu rm on m.menu_id = rm.menu_id
-                 left join sys_user_role sur on rm.role_id = sur.role_id
-                 left join sys_role ro on sur.role_id = ro.role_id
-                 left join sys_user u on sur.user_id = u.user_id
-        where u.user_id = #{userId}
-          and m.menu_type in ('M', 'C')
-          and m.status = '0'
-          and ro.status = '0'
+        left join sys_role_menu rm on m.menu_id = rm.menu_id and m.status = '0'
+        left join sys_role r on rm.role_id = r.role_id and r.status = '0'
+        where m.menu_type in ('M', 'C')
+            and r.role_id in (select role_id from sys_user_role where user_id = #{userId})
         order by m.parent_id, m.order_num
     </select>
 
@@ -57,22 +52,12 @@
         order by m.parent_id, m.order_num
     </select>
 
-    <select id="selectMenuPerms" resultType="String">
-        select distinct m.perms
-        from sys_menu m
-                 left join sys_role_menu rm on m.menu_id = rm.menu_id
-                 left join sys_user_role sur on rm.role_id = sur.role_id
-    </select>
-
     <select id="selectMenuPermsByUserId" parameterType="Long" resultType="String">
         select distinct m.perms
         from sys_menu m
-                 left join sys_role_menu rm on m.menu_id = rm.menu_id
-                 left join sys_user_role sur on rm.role_id = sur.role_id
-                 left join sys_role r on r.role_id = sur.role_id
-        where m.status = '0'
-          and r.status = '0'
-          and sur.user_id = #{userId}
+        left join sys_role_menu rm on m.menu_id = rm.menu_id and m.status = '0'
+        left join sys_role r on r.role_id = rm.role_id and r.status = '0'
+        where r.role_id in (select role_id from sys_user_role where user_id = #{userId})
     </select>
 
     <select id="selectMenuPermsByRoleId" parameterType="Long" resultType="String">

ruoyi-modules/ruoyi-system/src/main/resources/mapper/system/SysRoleMapper.xml

@@ -48,9 +48,7 @@
                r.data_scope,
                r.status
         from sys_role r
-                 left join sys_user_role sur on sur.role_id = r.role_id
-                 left join sys_user u on u.user_id = sur.user_id
-        WHERE r.del_flag = '0' and sur.user_id = #{userId}
+        WHERE r.del_flag = '0' and r.role_id in (select role_id from sys_user_role where user_id = #{userId})
     </select>
 
     <select id="selectRoleById" resultMap="SysRoleResult">