mybatis处理自关联

mybatis处理自关联

public class Right {
private Integer rightno;

private String rightname;

private Integer rightstate;

private Integer rightparent;

private String rightremark;
// 权限父类(关联)
private Right right;

//省略set get方法
}

<?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.hansuo.traffic.dao.RightMapper">
<resultMap id="BaseResultMap" type="com.hansuo.traffic.entity.Right">
<id column="rightNo" property="rightno" jdbcType="INTEGER" />
<result column="rightName" property="rightname" jdbcType="VARCHAR" />
<result column="rightState" property="rightstate" jdbcType="INTEGER" />
<result column="rightParent" property="rightparent" jdbcType="INTEGER" />
<result column="rightRemark" property="rightremark" jdbcType="VARCHAR" />
</resultMap>
<!-- 自关联映射结果集 -->
<resultMap type="Right" id="RightRightResultMap" extends="BaseResultMap">
<association property="right" column="rightParent" select="findParent">
</association>
</resultMap>

<sql id="Base_Column_List">
rightNo, rightName, rightState, rightParent, rightRemark
</sql>
<sql id="likewhere">
<where>
<if test="rightno!=null">
and right1.rightNo LIKE CONCAT(CONCAT('%', #{rightno}),
'%')
</if>
<if test="rightname!=null">
and right1.rightName LIKE CONCAT(CONCAT('%',
#{rightname}), '%')
</if>
and right1.rightParent is not null
</where>

</sql>
<select id="findParent" parameterType="java.lang.Integer" resultType="Right">
select * from b_right where rightNo =#{rightParent}
</select>

<!--查找所有权限 -->
<select id="allRightsearch" resultMap="RightRightResultMap"
parameterType="Right">
select * from b_right right1
left join b_right right2
on right1.rightParent = right2.rightNo
<include refid="likewhere"></include>
</select>

</mapper>