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whyclxw

2024-12-12 8ea6bcb91b4a8b50dfac568b0d0b52cd543b9f8c

 src/main/java/com/whyc/util/SubTablePageInfoUtil.java

@@ -3,7 +3,9 @@
import com.github.pagehelper.PageInfo;
import com.whyc.factory.ThreadPoolExecutorFactory;
import com.whyc.mapper.CommonMapper;
import com.whyc.pojo.BattAlarmHis;
import com.whyc.pojo.db_alarm.BattAlarmHistory;
import com.whyc.pojo.db_power_alarm.PowerAlarm;
import com.whyc.pojo.db_power_alarm.PowerAlarmHistory;
import com.whyc.service.SubTableService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
@@ -27,6 +29,103 @@
    private SubTableService service;

    //按年月分表
    /**按年份表分页查询*/
    public PageInfo<Object> getPageInfo(int pageNum,int pageSize,
                                        Date startTime,Date endTime,
                                        String dbName,String tablePrefix,
                                        Object pojo) throws ParseException {
        Map<String, List<Date>> queryTimeForSubTables = DateUtil.getQueryTimeForSubTablesDescWithOutDefault(startTime, endTime);
        //查询分表是否存在,存在则查询结果
        Map<String,Integer> queryCountMap = new LinkedHashMap<>();
        Set<String> tableYearKeySet = queryTimeForSubTables.keySet();
        for (String tableYear : tableYearKeySet) {
            List<Date> queryTime = queryTimeForSubTables.get(tableYear);

            //数值
            String tableName = tablePrefix+"_"+tableYear;
            String existTableName = commonMapper.existTable(dbName, tableName);
            if(existTableName == null){
                continue;
            }
            //====== 根据不同类型类型对象对应调整 ======
            if(pojo instanceof BattAlarmHistory) {
                BattAlarmHistory battAlarmHistory = new BattAlarmHistory();
                BeanUtils.copyProperties(pojo, battAlarmHistory);
                battAlarmHistory.setAlmStartTime(queryTime.get(0));
                battAlarmHistory.setAlmEndTime(queryTime.get(1));
                battAlarmHistory.setRecordYear(tableName);
                int currentCount = service.getBattHisCount(battAlarmHistory);
                queryCountMap.put(tableYear, currentCount);
            }
            else if(pojo instanceof PowerAlarmHistory) {
                PowerAlarmHistory powerAlarmHistory = new PowerAlarmHistory();
                BeanUtils.copyProperties(pojo, powerAlarmHistory);
                powerAlarmHistory.setAlmStartTime(queryTime.get(0));
                powerAlarmHistory.setAlmEndTime(queryTime.get(1));
                powerAlarmHistory.setRecordYear(tableName);
                int currentCount = service.getPowerHisCount(powerAlarmHistory);
                queryCountMap.put(tableYear, currentCount);
            }

        }

        //分页信息
        //确认总页数,总记录数
        PageInfo<Object> pageInfo = new PageInfo<>();

        int total = 0;
        Set<String> queryKeySet = queryCountMap.keySet();
        for (String queryKey : queryKeySet) {
            int size = queryCountMap.get(queryKey);
            total+=size;
        }
        int pages = (int) Math.ceil(Float.parseFloat(String.valueOf(total))/pageSize);
        pageInfo.setTotal(total);
        pageInfo.setPages(pages);
        pageInfo.setPageNum(pageNum);
        pageInfo.setPageSize(pageSize);
        //根据当前页所需记录,查询当前页记录
        int startNum = (pageNum-1)*pageSize+1;
        int endNum = pageNum*pageSize;

        //最后一个算法:上面不应该先查询所有记录,应该取count. 这后面定位到哪个表或哪几张表后,采取limit获取当前页记录数;
        //格式:{表名,[limit 2,20]}
        Map<String,List<Integer>> tableAndLimitMap = MathUtil.getQueryTableAndLimit(startNum,endNum,pageSize,queryCountMap);
        Set<String> keySet = tableAndLimitMap.keySet();
        List<Object> dataList = new LinkedList<>();
        for (String key : keySet) {
            List<Date> queryTime = queryTimeForSubTables.get(key);
            //====== 根据不同类型类型对象对应调整 ======
            String recordYear = tablePrefix + "_" + key;
            if(pojo instanceof BattAlarmHistory) {
                BattAlarmHistory battAlarmHistory = new BattAlarmHistory();
                BeanUtils.copyProperties(pojo, battAlarmHistory);
                battAlarmHistory.setAlmStartTime(queryTime.get(0));
                battAlarmHistory.setAlmEndTime(queryTime.get(1));
                battAlarmHistory.setRecordYear(recordYear);
                List<Integer> limitList = tableAndLimitMap.get(key);
                battAlarmHistory.setLimitStart(limitList.get(0));
                battAlarmHistory.setLimitEnd(limitList.get(1));
                List<BattAlarmHistory> list =  service.getBattHisList(battAlarmHistory);
                dataList.addAll(list);
            }
            else if(pojo instanceof PowerAlarmHistory) {
                PowerAlarmHistory powerAlarmHistory = new PowerAlarmHistory();
                BeanUtils.copyProperties(pojo, powerAlarmHistory);
                powerAlarmHistory.setAlmStartTime(queryTime.get(0));
                powerAlarmHistory.setAlmEndTime(queryTime.get(1));
                powerAlarmHistory.setRecordYear(recordYear);
                List<Integer> limitList = tableAndLimitMap.get(key);
                powerAlarmHistory.setLimitStart(limitList.get(0));
                powerAlarmHistory.setLimitEnd(limitList.get(1));
                List<PowerAlarmHistory> list =  service.getPowerHisList(powerAlarmHistory);
                dataList.addAll(list);
            }
        }
        pageInfo.setList(dataList);
        return pageInfo;
    }

    /**按月分表,分页查询*/
    public PageInfo<Object> getPageInfoByMonthTable(int pageNum, int pageSize,
                                                    Date startTime, Date endTime,
@@ -68,13 +167,13 @@
            }
            pool.execute(()-> {
                //====== 根据不同类型类型对象对应调整 ======
                if (pojo instanceof BattAlarmHis) {
                    BattAlarmHis battAlarmHis = new BattAlarmHis();
                    BeanUtils.copyProperties(pojo,battAlarmHis);
                    battAlarmHis.setAlmStartTime(queryTime.get(0));
                    battAlarmHis.setAlmEndTime(queryTime.get(1));
                    battAlarmHis.setRecordYear(tableName);
                    int currentCount = service.getBattHisCount(battAlarmHis);
                if (pojo instanceof BattAlarmHistory) {
                    BattAlarmHistory battAlarmHistory = new BattAlarmHistory();
                    BeanUtils.copyProperties(pojo, battAlarmHistory);
                    battAlarmHistory.setAlmStartTime(queryTime.get(0));
                    battAlarmHistory.setAlmEndTime(queryTime.get(1));
                    battAlarmHistory.setRecordYear(tableName);
                    int currentCount = service.getBattHisCount(battAlarmHistory);
                    queryCountMap.put(tableYear, currentCount);
                 }
                latch.countDown();
@@ -115,16 +214,16 @@
            List<Date> queryTime = queryTimeForSubTables.get(key);
            //====== 根据不同类型类型对象对应调整 ======
            String recordYear = key.equals("default") ? tablePrefix : tablePrefix + "_" + key;
            if(pojo instanceof BattAlarmHis) {
                BattAlarmHis battAlarmHis = new BattAlarmHis();
                BeanUtils.copyProperties(pojo,battAlarmHis);
                battAlarmHis.setAlmStartTime(queryTime.get(0));
                battAlarmHis.setAlmEndTime(queryTime.get(1));
                battAlarmHis.setRecordYear(recordYear);
            if(pojo instanceof BattAlarmHistory) {
                BattAlarmHistory battAlarmHistory = new BattAlarmHistory();
                BeanUtils.copyProperties(pojo, battAlarmHistory);
                battAlarmHistory.setAlmStartTime(queryTime.get(0));
                battAlarmHistory.setAlmEndTime(queryTime.get(1));
                battAlarmHistory.setRecordYear(recordYear);
                List<Integer> limitList = tableAndLimitMap.get(key);
                battAlarmHis.setLimitStart(limitList.get(0));
                battAlarmHis.setLimitEnd(limitList.get(1));
                List<BattAlarmHis> list =  service.getBattHisList(battAlarmHis);
                battAlarmHistory.setLimitStart(limitList.get(0));
                battAlarmHistory.setLimitEnd(limitList.get(1));
                List<BattAlarmHistory> list =  service.getBattHisList(battAlarmHistory);
                dataList.addAll(list);
            }
        }