mybatis中foreach用法简介说明

mybatis中foreach功能说明:
   用于将list集合按照一定的规则，拼接为一个sql脚本
   然后放入到数据库中运行

 
<select id="selectInfoIn" resultType="domain.java265.Post">
SELECT *
FROM Post  P
WHERE ID in
<foreach item="item" index="index" collection="list"
open="(" separator="," close=")">
#{item}
</foreach>
</select>
这里的collection可以是：array，list，map,set，这里试验一下array：

<delete id="deletePost">
delete from t_Post where id in
<foreach collection="array" item="id" open="(" close=")" separator=",">
            #{id}
</foreach>
</delete>

java代码

SqlSession session=null;
try {
session=myBatisUtil.getSqlSession();
Integer[] ids = new Integer[]{8,10,22,88};
session.delete("deletePost",ids);
	session.commit();
} catch (Exception e) {
	e.printStackTrace();
	session.rollback();
	}finally{
	session.close();
 }