MyBatis查询，返回值Map或List

返回值是单条数据

Controller

    @RequestMapping(value = "/ss", method = RequestMethod.POST)
    @ApiOperation(value = "测试")
    public ApiJsonTemplate<Map> ss(HttpServletRequest request) {
        return linkAccountCardService.ss(request);
    }

Service

 /**
     * 测试
     * @param request
     * @return
     */
    ApiJsonTemplate<Map> ss(HttpServletRequest request);

ServiceImpl

 /**
     * 测试
     * @param request
     * @return
     */
    @Override
    public ApiJsonTemplate<Map> ss(HttpServletRequest request) {
        Map<String,Object> ss=   linkAccountCardMapper.selectByPrimaryen();
        return ApiJsonTemplate.buider().setSuccessDate(ss);
    }

dao

 /**
     * 测试
     * @return
     */
    Map<String, Object> selectByPrimaryen();

mapper.xml文件

 <!--selectByPrimaryen-->
    <select id="selectByPrimaryen"  resultType="java.util.HashMap">
        select 字段名, 字段名
			from 表名   where id=16
    </select>

返回值是多条数据

dao接口定义

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

mapper.xml文件

<select id="selectUserMapList" resultType="java.util.HashMap">  
    select 字段名, 字段名
			from 表名 
</select>