最有用到mybatis返回一个map结果集,然后就针对性的在网上找了一些相关大牛的总结:1.mybatis返回map结果集 - 红尘中人·杨哥 - 博客园 2.MyBatis返回Map | 码农网 然后经过自己的测试终于可以应用实际业务中 1、如果你确定返回的数据只有一条,你可以这样整 xml中:
<select id="searchncomedateByInvestID" resultMap="java.util.HashMap">
select
t1.invest_id ,
cast(t1.modify_time AS DATE) modify_time
from t_c_wh_redeeminfo t1
where 1=1
and t1.invest_id =#{investId}
</select>
dao中:
Map<String,Object> searchncomedateByInvestID(investId);
2、如果返回的是多条数据,可以这样整 xml中:
<resultMap id="getAllSetDaysResult" type="HashMap">
<result property="investid" column="invest_id" jdbcType="VARCHAR" />
<result property="modifytime" column="modify_time" jdbcType="DATE"/>
</resultMap>
<select id="searchncomedateByInvestID" parameterType="java.util.List" resultMap="getAllSetDaysResult">
select
t1.invest_id ,
cast(t1.modify_time AS DATE) modify_time
from t_c_wh_redeeminfo t1
where 1=1
and t1.invest_id in
<foreach collection="list" item="investId" index="index" open="(" close=")" separator=",">
#{investId}
</foreach>
</select>
dao中:
List<Map<String, Object>> searchncomedateByInvestID(List<String> preinvestList);
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处理Mybatis返回的结果集为Map类型
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