List中map泛型对应mybatis的返回类型

List<Map<String,Object>>在mybatis对应

resultType="java.util.HashMap"

</select>
  <select id="selectExceptionCountBymonths" resultType="java.util.HashMap"  >
SELECT
	DATE_FORMAT( report_date, '%Y%m' ) label ,
	COUNT( 0 ) value
FROM
	t_smoke_detector_record
	WHERE tsdr_type != "火灾告警"
GROUP BY
	label

  </select>

    @ApiOperation(value = "按照月份统计报警条数",notes = "按照月份统计报警条数")
    @GetMapping(value = "warnCountStatistics")
    @ActionLog(value = "按照月份统计所有报警条数")
    public  List<Map<String,Object>>  warnCountStatistics(){
        List list = smokeDetectorRecordMapper.selectWarnCountBymonths();

        return list;

返回结果

fa