jeecg-boot中分页接口用自定义sql和list实现

1、controller中

    @ApiOperation(value="分析仪工作状态和报警-3列-分页", notes="分析仪工作状态和报警状态-分页")
    @ApiImplicitParams({
            @ApiImplicitParam(name = "portId", value = "监测点id", required = true, dataType = "String",paramType = "query",defaultValue="130500000193-10"),
            @ApiImplicitParam(name = "polId", value = "监测因子id", required = true, dataType = "String",paramType = "query",defaultValue="a21002"),
            @ApiImplicitParam(name = "startTime", value = "开始时间", required = true, dataType = "String",paramType = "query",defaultValue ="2021-11-29 00:00:00" ),
            @ApiImplicitParam(name = "endTime", value = "结束时间", required = true, dataType = "String",paramType = "query",defaultValue="2021-11-30 00:00:00"),
            @ApiImplicitParam(name = "portType", value = "监测点类型1废水2废气dgi数采仪", required = true, dataType = "String",paramType = "query",defaultValue="2")
    })
    @GetMapping(value = "/getDeviceStatusWarn")
    public Result<?> getDeviceStatusWarn(String portId,String polId,String startTime,String endTime,String portType,
                                               @RequestParam(name="pageNo", defaultValue="1") Integer pageNo,
                                               @RequestParam(name="pageSize", defaultValue="10") Integer pageSize,
                                               HttpServletRequest req) {
        Page<Map<String,Object>> page = new Page<Map<String,Object>>(pageNo, pageSize);
        IPage<Map<String,Object>> pagelist = wwDeviceChangeparamService.getDeviceStatusWarn(page,portId,polId,startTime,endTime,portType);
        return Result.ok(pagelist);
    }

2、interface中

IPage<Map<String,Object>> getDeviceStatusWarn(Page<Map<String,Object>> page, String portId, String polId, String startTime, String endTime, String portType);

3、实现类中

    @Override
    public IPage<Map<String,Object>> getDeviceStatusWarn(Page<Map<String,Object>> page, String portId, String polId, String startTime, String endTime, String portType)
    {
        Date startTime1= DateUtil.strToDate(startTime,"yyyy-MM-dd HH:mm:ss");
        Date endTime1= DateUtil.strToDate(endTime,"yyyy-MM-dd HH:mm:ss");
        if(portType.equals("2"))
        {
            return wwDeviceChangeparamMapper.getDeviceStatusWarn_gas(page,portId,polId,startTime1,endTime1);
        }
        else if(portType.equals("1"))
        {
            return wwDeviceChangeparamMapper.getDeviceStatusWarn_water(page,portId,polId,startTime1,endTime1);
        }
        else
        {
            return wwDeviceChangeparamMapper.getDeviceStatusWarn_dgi(page,portId,polId,startTime1,endTime1);
        }
    }

4、mapper中

IPage<Map<String,Object>> getDeviceStatusWarn_dgi(Page<Map<String,Object>> page, String portId, String polId, Date startTime, Date endTime);

5、xml中

<select id="getDeviceStatusWarn_dgi" resultType="java.util.Map">
        select  to_char(p.datatime,'YYYY-MM-DD HH24:MI:SS') datatime,
        String_agg(CASE state_id WHEN'i22001' THEN state_info ELSE '' END,',') as workstatus,
        String_agg(CASE  WHEN state_id='i22004' and pol_id=#{polId} THEN state_info ELSE '' END,',') as warnstatus,
         String_agg(CASE state_id WHEN'i22005' THEN state_info ELSE '' END,',') as warninfo
        from ww_device_param p , v_ps_port port
        where p.mn=port.dgi_mn and p.dt='1'
        and port.port_id=#{portId}
        and p.datatime&gt;=#{startTime}
        and p.datatime&lt;=#{endTime}
        group by p.datatime
        order by p.datatime
    </select>