<dependencies>
        
        <dependency>
            <groupId>com.microsoft.sqlserver</groupId>
            <artifactId>mssql-jdbc</artifactId>
            <scope>runtime</scope>
        </dependency>

    </dependencies>

package com.johan.handler.task.iotSync.bean;
import lombok.Data;
import org.apache.commons.lang3.StringUtils;
import org.springframework.jdbc.core.RowMapper;

import java.sql.ResultSet;
import java.sql.SQLException;

/**
 * @author: Johan
 * @date: 2021/10/18
 * @desc: IOT信息
 */
@Data
public class IotDG implements RowMapper {
    /**
     * 標簽名稱
     */
    private String tagName;

    /**
     * 標簽描述
     */
    private String tagDesc;

    /**
     * 標簽值
     */
    private Double tagVal;

    /**
     * 標簽單位
     */
    private String tagUnit;

    /**
     * 類型，0 壓力，1 流量
     */
    private String type;


    @Override
    public Object mapRow(ResultSet rs, int rowNum) throws SQLException {
        IotDG iotDG = new IotDG();
        iotDG.setTagName(rs.getString("TagName"));
        iotDG.setTagDesc(rs.getString("TagDesc"));
        iotDG.setTagVal(rs.getDouble("Value"));
        iotDG.setTagUnit(rs.getString("TagUnit"));
        iotDG.setType(rs.getString("Type"));

        return iotDG;
    }
}

package com.johan.handler.task.iotSync.iotConvert;

import com.johan.handler.task.iotSync.bean.IotDG;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.datasource.DriverManagerDataSource;

import java.sql.*;
import java.util.List;

/**
 * @author johan
 * @Description SQL server
 * @time 2021/10/18 18:26
 */
public class JDBCUtils {

    private static JdbcTemplate jdbcTemplate;
    static {
        String driver = "com.microsoft.sqlserver.jdbc.SQLServerDriver";
        String url ="jdbc:sqlserver://10.25.23.172:1433;databaseName=SCADA_Data_3040";//連接地址
        String user ="SLSL";//用戶
        String password ="Admin@3040";//密碼

        DriverManagerDataSource dataSource=new DriverManagerDataSource();
        dataSource.setUrl(url);
        dataSource.setDriverClassName(driver);
        dataSource.setUsername(user);
        dataSource.setPassword(password);

        jdbcTemplate=new JdbcTemplate(dataSource);
    }


    public static List<IotDG> listAll(int type){
        String sql = "SELECT * FROM RealData where Type=" + type;

//        System.out.println(iotDGList);
        return jdbcTemplate.query(sql,new IotDG());
    }


}

package com.johan.domain.iot;

import com.johan.handler.task.iotSync.bean.IotDG;
import com.johan.handler.task.iotSync.iotConvert.JDBCUtils;
import lombok.extern.slf4j.Slf4j;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;

import java.util.List;

/**
 * @author johan
 * @time 2021/10/22 17:57
 */
@SpringBootTest
@Slf4j
public class IotDomainTest {

    @Test
    public void jdbcTest(){
        List<IotDG> iotDGList = JDBCUtils.listAll(0);
        System.out.println(iotDGList);
    }

}