YcSuperMarketMember model中包含name 和area 兩個屬性。 xml中不要使用${} 存在sql注入漏洞。
<select id="select_by_condition" parameterType="com.yc.budaoweng.model.YcSuperMarketMember" resultMap="BaseResultMap">
select * from yc_member_supermarket where yc_member_supermarket.area=#{area}
<if test="name !=null and name!=''">
and yc_member_supermarket.name like CONCAT('%',#{name},'%')
</if>