标签:
1、当用到集合in(x,x...)参数可以单个或者多个 ,当为单个时:
findbyIds(List<Long> ids),或者findByids(Long [] ids)
<select id="findByIdsMap" resultMap="BaseResultMap">
Select
<include refid="Base_Column_List" />
from jria where ID in
<foreach item="item" index="index" collection="list"
open="(" separator="," close=")">
#{item}
</foreach>
</select>
当为数组时 collection="array"
2 当查询的参数有多个时,例如 findByIds(String name, Long[] ids)
这种情况需要特别注意,在传参数时,一定要改用Map方式, 这样在collection属性可以指定名称
下面是一个示例
Map<String, Object> params = new HashMap<String, Object>(2);
params.put("name", name);
params.put("ids", ids);
mapper.findByIdsMap(params);
<select id="findByIdsMap" resultMap="BaseResultMap">
select
<include refid="Base_Column_List" />
from jria where ID in
<foreach item="item" index="index" collection="ids"
open="(" separator="," close=")">
#{item}
</foreach>
</select>
标签:
原文地址:http://www.cnblogs.com/likun10579/p/5809581.html