screen-api 增加小时和五分钟跨表查询

kaiyu

2021-09-23 d32bc8f5fa5cd1a9ef293614124420b17acdaa5f

 screen-api/src/main/java/com/moral/api/service/impl/HistoryHourlyServiceImpl.java

@@ -2,20 +2,22 @@

import com.alibaba.fastjson.JSONObject;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.moral.api.config.mybatis.MybatisPlusConfig;
import com.moral.api.entity.HistoryFiveMinutely;
import com.moral.api.entity.HistoryHourly;
import com.moral.api.mapper.HistoryHourlyMapper;
import com.moral.api.service.HistoryHourlyService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.moral.constant.Constants;
import com.moral.constant.SeparateTableType;
import com.moral.util.AQIUtils;
import com.moral.util.DateUtils;

import com.moral.util.MybatisPLUSUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.ObjectUtils;

import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.*;

/**
 * <p>
@@ -26,25 +28,62 @@
 * @since 2021-07-14
 */
@Service
public class HistoryHourlyServiceImpl extends ServiceImpl<HistoryHourlyMapper, HistoryHourly> implements HistoryHourlyService {
public class HistoryHourlyServiceImpl implements HistoryHourlyService {

    @Autowired
    private HistoryHourlyMapper historyHourlyMapper;

    @Override
    public Map<String, Object> getHourlyAqiByMac(String mac) {
        QueryWrapper<HistoryHourly> queryWrapper = new QueryWrapper<>();
        String time = DateUtils.dateToDateString(new Date(), DateUtils.yyyy_MM_dd_HH_EN) + ":00:00";
        queryWrapper.eq("mac", mac).eq("time", time);
        Date now = new Date();
        String time = DateUtils.dateToDateString(now, DateUtils.yyyy_MM_dd_HH_EN) + ":00:00";
        //获取小时数据
        HistoryHourly historyHourly = historyHourlyMapper.selectOne(queryWrapper);
        Map<String, Object> params = new HashMap<>();
        params.put("timeUnits", DateUtils.dateToDateString(now, DateUtils.yyyyMM_EN));
        params.put("mac", mac);
        params.put("time", time);
        String value = historyHourlyMapper.selectHourlyData(params);
        Map<String, Object> result = new HashMap<>();
        if (historyHourly == null) {
        if (ObjectUtils.isEmpty(value)) {
            result.put("AQI", Constants.NULL_VALUE);
            return result;
        }
        Map<String, Object> data = JSONObject.parseObject(historyHourly.getValue(), Map.class);
        Map<String, Object> data = JSONObject.parseObject(value, Map.class);
        result.put("AQI", AQIUtils.hourlyAqi(data));
        return result;
    }

    /**
    * @Description: 查询一段时间内某一mac的数据
            * @Param: [mac, startDate, endDate]
            * @return: java.util.List<com.moral.api.entity.HistoryHourly>
            * @Author: 陈凯裕
            * @Date: 2021/9/23
            */
    public List<HistoryHourly> getValueByMacAndTime(String mac,Date startDate,Date endDate){
        QueryWrapper<HistoryHourly> wrapper = new QueryWrapper<>();
        wrapper.eq("mac",mac);
        wrapper.between("time",startDate,endDate);
        List<String> tableNames = MybatisPLUSUtils.getTableNamesByWrapper(startDate, endDate, SeparateTableType.MONTH);
        List<HistoryHourly> datas = multiTableQuery(wrapper, tableNames);
        return datas;
    }

    /**
    * @Description: 多表查询，传入表名集合，以及条件wrapper，返回数据
            * @Param: [wrapper, tableNames]
            * @return: java.util.List<com.moral.api.entity.HistoryHourly>
            * @Author: 陈凯裕
            * @Date: 2021/9/23
            */
    private List<HistoryHourly> multiTableQuery(QueryWrapper<HistoryHourly> wrapper,List<String> tableNames){
        List<HistoryHourly> result = new ArrayList<>();
        for (String tableName : tableNames) {
            MybatisPlusConfig.tableName.set(tableName);
            List<HistoryHourly> datas = historyHourlyMapper.selectList(wrapper);
            result.addAll(datas);
        }
        return result;
    }

}