SSM整合二

总结

 <!-- 批量删除 -->
  <delete id="deleteAll">
      delete from tbl_emp where emp_id in
<!--       如果传入的是list，那么collection的值为list,如果是array不可变数组，则collection的值为array -->
      <foreach collection="array" item="id" open="(" close=")" separator=",">
          #{id}
      </foreach>
  </delete>