mybatis的一些小知识

    <update id="setReaded">
        update wa_ent_job_app
            set IS_READ= 1,
              READ_TIME=now()
        where APP_ID IN
        <foreach collection="list" index="index" item="item" open="(" separator="," close=")">
            #{item}
        </foreach>
    </update>

1.获取当前时间

2.传入参数为list类型的id

int setReaded(@Param("list") List list);

3.字符串0在mybatis中被判断为空、null

4. where category_name like "%"#{area,jdbcType=VARCHAR}"%"