优化雷达日志

‘liusuyi’

2024-03-27 a850200a330feceb0e64650bb6dfc47eec5478c7

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package com.ard.utils.jdbc;
 
/**
 * @Description:
 * @ClassName: Query
 * @Author: 刘苏义
 * @Date: 2023年09月19日13:01:28
 **/
 
import com.ard.alarm.digitization.model.DataBridge;
import lombok.extern.slf4j.Slf4j;
 
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
 
@Slf4j(topic = "digitization3")
public class Query {
    static Connection conn = null;
    static Statement st = null;
    static ResultSet rs = null;
 
    public static List<DataBridge> getAlarmData(Date alarmTime, Integer rowNum) {
        List<DataBridge> dataBridgeList = new ArrayList<>();
        try {
            //1、获取连接对象
            conn = Conn.getGc().getCon();
            //2、创建statement类对象，用来执行SQL语句
            st = conn.createStatement();
            //3、创建sql查询语句
            StringBuilder sbd = new StringBuilder();
            String sql = "select * from (select * from DATABRIDGE  order by DB_DATETIME desc ) where 1=1 ";
            sbd.append(sql);
            if (rowNum != null) {
                sbd.append(" and rownum <" + rowNum);
            }
            if (alarmTime != null) {
                SimpleDateFormat fmt = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
                String Time = fmt.format(alarmTime);
                sbd.append(" and DB_DATETIME > to_date('" + Time + "','yyyy/mm/dd hh24:mi:ss')");
            }
            //4、执行sql语句并且换回一个查询的结果集
            rs = st.executeQuery(sbd.toString());
            while (rs.next()) {  //循环遍历结果集
                DataBridge dataBridge = new DataBridge();
                dataBridge.setId(rs.getString("DB_GUID"));
                dataBridge.setXmmc(rs.getString("DB_XMMC"));
                dataBridge.setFKey(rs.getString("DB_FKEY"));
                dataBridge.setFName(rs.getString("DB_FNAME"));
                dataBridge.setValue(rs.getString("DB_VALUE"));
                dataBridge.setDateTime(rs.getTimestamp("DB_DATETIME"));
                dataBridgeList.add(dataBridge);
            }
            return dataBridgeList;
        } catch (Exception e) {
            log.error("三厂数字化报警查询异常:" + e.getMessage());
            return dataBridgeList;
        } finally {
            try {
                conn.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
    }
}