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结论： 通过设置别名的方式让其产生区别
<select id="queryBySekillId" resultMap="successKilled">
select
sk.seckill_id "seckill_id",
sk.user_phone "user_phone",
sk.state "state",
sk.create_time "create_time",
s.seckill_id "seckill_id",
s.name "name",
s.number "number",
s.start_time "start_time",
s.end_time "end_time",
s.create_time "screate_time"
from success_killed sk
inner join seckill s
on sk.seckill_id = s.seckill_id
where sk.seckill_id = #{seckill_id} ;
</select>
以上 success_killed表和seckill表中有相同字段 create_time （id字段其实确实是相同的故在此忽略），通过将表seckill的create_time字段命名为screate_time用以区别。
<resultMap type="Seckill" id="seckill"> <id column="seckill_id" property="seckill_id"/> <result column="name" property="name"/> <result column="number" property="number"/> <result column="start_time" property="start_time" /> <result column="end_time" property="end_time"/> <result column="screate_time" property="create_time" /> </resultMap>
同时将 resultMap中该段的 column 属性该为 screate_time.故只要让查询出的字段名与column相同，它会通过映射找到相应属性进行封装。
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原文地址：http://www.cnblogs.com/hupi/p/5656742.html
