import java.sql.*;

/*
* 第五步：处理查询结果
* */
public class JDBCTest05 {
    public static void main(String[] args) {
        try {
            //1 注册驱动
            Driver driver = new com.mysql.jdbc.Driver();
            DriverManager.registerDriver(driver);

            //2 获取数据库链接
            String url = "jdbc:mysql://127.0.0.1:3306/bd171";
            String user = "root";
            String passwd = "root";
            Connection connection = DriverManager.getConnection(url, user, passwd);

            //3 获取数据库操作对象
            Statement statement = connection.createStatement();

            //4 执行sql语句
            String sql = "select id,last_name,salary from s_emp";
            ResultSet resultSet = statement.executeQuery(sql);
            System.out.println(resultSet);

            //5 处理查询结果
            while (resultSet.next()){
                int id = resultSet.getInt("id");
                String last_name = resultSet.getString("last_name");
                double salary = resultSet.getDouble("salary");
                System.out.println(id+" "+last_name+" "+salary);
            }
        }catch (Exception e){
            e.printStackTrace();
        }
    }
}