mqtt/src/main/java/com/xydl/service/DbsqlService.java

package com.xydl.service;

import com.xydl.entity.SyncTablesInfo;
import com.xydl.util.DateUtil;
import lombok.extern.slf4j.Slf4j;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import javax.annotation.Resource;
import java.util.Date;
import java.util.List;
import java.util.Map;

@Service
@Slf4j
@Transactional(rollbackFor = Exception.class)
public class DbsqlService {
    @Resource
    private JdbcTemplate jdbcTemplate;


    public List<Object> getDistinctEqmids(String tableName, String field) {
        String sql = "SELECT DISTINCT(" + field + ") FROM " + tableName;
        List<Object> list = jdbcTemplate.queryForList(sql, Object.class);
        return list;
    }

    public List<Map<String, Object>> getData(Object eqmid, Date lasttime, SyncTablesInfo table) {
        String sqlSelect = "SELECT * FROM " + table.getId().getTableName();

        String sqlWhere = " WHERE " + table.getDevidFieldName();
        if (eqmid instanceof String) {
            sqlWhere = sqlWhere + "='" + eqmid + "'";
        } else {
            sqlWhere = sqlWhere + "=" + eqmid;
        }
        if (lasttime != null) {
            sqlWhere = sqlWhere + " AND " + table.getFieldName() + ">'" + DateUtil.format(lasttime) + "'";
        }
        String sqlOrder = " ORDER BY " + table.getFieldName() + " ASC LIMIT 1000";

        String sql = sqlSelect + sqlWhere + sqlOrder;
//        log.debug(sql);
        List<Map<String, Object>> list = jdbcTemplate.queryForList(sql);
        return list;
    }
}