mybatis遍历Map的key和value

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" 
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<!--namespace必须是接口的全类名 -->
<mapper namespace="com.genius">
 
	<!-- 1.0 查询表结构是否存在 -->
	<select id="selectOne" parameterType="java.util.HashMap"
		resultType="java.util.HashMap">
		select count(*) as num from ${tableName} where seq =
		#{seq};
	</select>
 
	<!-- 1.1 插入一条数据 -->
	<insert id="insertOne" parameterType="java.util.Map">
		insert into ${tableName}
		<foreach collection="content.keys" item="key" open="(" close=")"
			separator=",">
			${key}
		</foreach>
		values
		<foreach collection="content.values" item="value" open="("
			close=")" separator=",">
			#{value}
		</foreach>
	</insert>
 
	<!-- 1.2 更新记录 -->
	<update id="updateOne" parameterType="java.util.Map">
		UPDATE ${tableName} SET
		<foreach collection="content.keys" item="key" open="" close=""
			separator=",">
			${key} = #{content[${key}]}
		</foreach>
		where seq = #{content[seq]} and genius_uid <=
		#{content[genius_uid]};
	</update>
 
	<!-- 1.3 删除无效数据 -->
	<delete id="deleteOne" parameterType="java.util.Map">
		delete from ${tableName}
		where seq = #{content[seq]};
	</delete>
 
</mapper>

SqlSession session = MyBatisConnectionFactory.getSession("pg");
				HashMap<String, Object> params = new HashMap<>(); //传入的参数
				params.put("content", tableContent);
				params.put("tableName", tableName);
				params.put("seq", seq);
int flag = session.delete("deleteOne", params); //删除记录
HashMap<String, Object> map = session.selectOne("selectOne", params); //查询记录是否存在
flag = session.update("updateOne", params) > 0 ? true : false; //更新
flag = session.insert("insertOne", params) > 0 ? true : false; //新增

<insert id="saveMatchResult" >
　　INSERT INTO sp4_acl_so (acl_id, so_uuid__proc_def_id)
　　<foreach collection="aclDeviceMap.keys" index="index" item="item" separator="UNION ALL">
　　　　<foreach collection="aclDeviceMap[item]" index="index_set" item="set" separator="UNION ALL">
　　　　　　SELECT #{item.aclId}, #{set}
　　　　　　FROM DUAL
　　　　</foreach>
　　</foreach>
</insert>