mybatis判断list不为空/大小的问题

    <if test="status != null and status.size()>0" >
      and s.orderstatus in 
      <foreach collection="status" item="listItem" open="(" close=")" separator="," >
        #{listItem}
      </foreach>
    </if>   

    <if test="status != null and status.size() &gt; 0" >
      and s.orderstatus in 
      <foreach collection="status" item="listItem" open="(" close=")" separator="," >
        #{listItem}
      </foreach>
    </if>   

select login,name,email from users u where
<choose>
    <when test="sameEmailList != null and sameEmailList.size > 0 ">
        email in <foreach collection="sameEmailList" item="email" open="(" separator="," close=")">
        #{email, jdbcType=VARCHAR}
        </foreach>
    </when>
    <otherwise>
        1 = 0
    </otherwise>
</choose>
<choose>
    <when test="sameNameList != null and sameNameList.size > 0">
        or name in <foreach collection="sameNameList" item="name" open="(" separator="," close=")">
        #{name, jdbcType=VARCHAR}
    </foreach>
    </when>
    <otherwise>
        or 1 = 0
    </otherwise>
</choose>
ORDER by name, email ASC