标签：role bsp and ace left join err tis 通过 order by
本查询用于Mybatis+Spring的B/S架构
1.创建实体类与数据库的字段进行映射
public class PriMenu implements Serializable {
private Long id;
private Long pId; // 父节点id
private String menuName;// 菜单名称
private String menuDesc;// 描述
private String menuUrl;// 访问地址
private Long menuOrder;// 菜单顺序
private String icon;// 图标地址
private String priLevel;// 菜单层级
private String priPath;// 权限菜单层级路径
private String status; // 状态 0可用 1禁用
private Long creatorId; // 创建人id
private List<PriMenu> sonList;
}
2.需要对数据库查询
1）通过角色ID和去数据库查询到所有的权限父菜单（一般都是要表关联 这就看各自的表设计了）
2）通过角色ID和权限父菜单ID去查询所属的子菜单一起封装到PriMenu类里面
<resultMap id="MenuResultMap" type="com.p2p.pri.domain.PriMenu"> <result property="id" column="ID" /> <result property="pId" column="P_ID" /> <result property="menuName" column="MENU_NAME" /> <result property="menuDesc" column="MENU_DESC" /> <result property="menuUrl" column="MENU_URL" /> <result property="menuOrder" column="MENU_ORDER" /> <result property="icon" column="ICON" /> <result property="priLevel" column="PRI_LEVEL" /> <result property="priPath" column="PRI_PATH" /> <result property="status" column="STATUS" /> <result property="creatorId" column="CREATOR_ID" /> <association property="sonList" column="{pId=id,userId=userId}" select="querySonMenuByUserId"></association> </resultMap>
<select id="queryMenuByUserId" parameterType="map" resultMap="MenuResultMap"> SELECT t1.* <if test="userId != null and userId != ‘‘"> ,#{userId} as userId </if> FROM T_PRI_MENU t1 LEFT JOIN T_PRI_ROLE_MENU t2 ON t1.ID = t2.MENU_ID LEFT JOIN T_PRI_USER_ROLE t3 ON t2.ROLE_ID = t3.ROLE_ID WHERE t3.USER_ID = #{userId} <if test="pId != null and pId != ‘‘"> <if test="pId != ‘-1‘"> AND t1.P_ID = #{pId} </if> </if> <if test="pId == null"> AND (ISNULL(t1.P_ID) OR t1.P_ID = 0) </if> AND t1.STATUS = ‘0‘ AND t1.IS_DELETE = ‘0‘ ORDER BY t1.MENU_ORDER ASC, t1.ID DESC </select>
<select id="querySonMenuByUserId" parameterType="map" resultMap="BaseResultMap"> SELECT t1.* FROM T_PRI_MENU t1 LEFT JOIN T_PRI_ROLE_MENU t2 ON t1.ID = t2.MENU_ID LEFT JOIN T_PRI_USER_ROLE t3 ON t2.ROLE_ID = t3.ROLE_ID WHERE t3.USER_ID = #{userId} <if test="pId != null and pId != ‘‘"> <if test="pId != ‘-1‘"> AND t1.P_ID = #{pId} </if> </if> AND t1.STATUS = ‘0‘ AND t1.IS_DELETE = ‘0‘ ORDER BY t1.MENU_ORDER ASC, t1.ID DESC </select>
接口：
public interface IPriMenuService { public List<PriMenu> queryMenuByUserId(Map<String, Object> param); } @Service(interfaceClass=IPriMenuService.class, timeout=30000) public class PriMenuServiceImpl implements IPriMenuService { @Override public List<PriMenu> queryMenuByUserId(Map<String, Object> param) { return priMenuMapper.queryMenuByUserId(param); } } @MyBatisRepository public interface PriMenuMapper { public List<PriMenu> queryMenuByUserId(Map<String, Object> param); }
然后就是前后端接收和展示
标签：role bsp and ace left join err tis 通过 order by
原文地址：https://www.cnblogs.com/gjq1126-web/p/11363635.html
