<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="com.iailab.module.model.mcs.pre.dao.DmModuleDao"> <select id="getModuleByItemId" resultType="com.iailab.module.model.mcs.pre.entity.DmModuleEntity"> select t1.* from T_DM_MODULE t1 left join T_DM_MODULE_ITEM t2 on t2.MODULEID = t1.ID where t2.ITEMID = #{value} </select> </mapper>