<?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.devplatform.admin.modules.sys.dao.SysUserRoleDao"> <delete id="deleteBatch"> delete from sys_user_role where role_id in <foreach close=")" collection="array" item="roleId" open="(" separator=","> #{roleId} </foreach> </delete> <select id="queryRoleIdList" resultType="java.lang.String"> select role_id from sys_user_role where user_id = #{value} </select> </mapper>