jdbc遍历结果集

import java.sql.*;

//jdbc数据库结果集遍历
public class JDBCdemo5 {
    public static void main(String[] args) {
        Connection connection = null;
        Statement statement = null;
        try {
            Class.forName("com.mysql.jdbc.Driver");
            connection = DriverManager.getConnection("jdbc:mysql:///db1", "root", "root");
            statement = connection.createStatement();
            String sql = "select * from student";
            ResultSet resultSet = statement.executeQuery(sql);
            while (resultSet.next()){
                String name = resultSet.getString("name");
                int age = resultSet.getInt("age");
                System.out.println("姓名:"+name+"     年龄:"+age);
            }
        } catch (ClassNotFoundException | SQLException e) {
            e.printStackTrace();
        }finally {
            if (connection != null){
                try {
                    connection.close();
                } catch (SQLException throwables) {
                    throwables.printStackTrace();
                }
            }
            if (statement != null){
                try {
                    statement.close();
                } catch (SQLException throwables) {
                    throwables.printStackTrace();
                }
            }
        }
    }
}