代码实现：MyBatis查询，返回值Map或List

1、返回值Maphtml

一、mapper.xmljava

<select id="selectUserMapLimitOne" resultType="java.util.HashMap">
		select id,name
		from
		user order by id desc limit 1
	</select>

二、接口定义app

/**
	 * 获取仅含一个的map（map的size=字段个数）
	 * @return
	 */
	Map<String,Object> selectUserMapLimitOne();

2、返回值List<Map>spa

一、mapper.xmlcode

<select id="selectUserMapList" resultType="java.util.HashMap">
		select id,name from
		user order by id desc limit 2
	</select>

二、接口定义xml

/**
	 * 获取map list
	 * @return
	 */
	List<Map<String,Object>> selectUserMapList();