JDBC ResultSet obtains query results, encapsulates them as Account objects, and stores them in ArrayList

public class JDBCDemo3_ResultSet {
    
    
    @Test
    public void testResultSet() throws Exception {
    
    

        String url = "jdbc:mysql:///test230615?useSSL=false";
        String username = "";
        String password = "";
        Connection connection = DriverManager.getConnection(url, username, password);
        String sql = "select * from account";
        Statement statement = connection.createStatement();
        ResultSet resultSet = statement.executeQuery(sql);
        while (resultSet.next()){
    
    
            int id = resultSet.getInt("id");
            String name = resultSet.getString("name");
            double money = resultSet.getDouble("money");
            System.out.println(id);
            System.out.println(name);
            System.out.println(money);
            System.out.println("----------------");
        }
        connection.close();
        statement.close();
        resultSet.close();
    }
    /*
    * 查询account账户表数据，封装为Account对象，并存储到ArrayList集合中
    * 1.定义实体类Account
    * 2.查询数据，封装到Account对象中
    * 3.将Account对象存入ArrayList集合中
    * */

    @Test
    public void testResultSet2() throws Exception {
    
    
        String url = "jdbc:mysql:///test230615?useSSL=false";
        String username = "";
        String password = "";
        Connection connection = DriverManager.getConnection(url, username, password);
        String sql = "select * from account";
        Statement statement = connection.createStatement();
        ResultSet resultSet = statement.executeQuery(sql);
        ArrayList<Account> list = new ArrayList<>();
        while (resultSet.next()){
    
    
            Account account = new Account();

            // 获取数据
            int id = resultSet.getInt("id");
            String name = resultSet.getString("name");
            double money = resultSet.getDouble("money");

            // 读取数据
            account.setId(id);
            account.setName(name);
            account.setMoney(money);

            // 存入ArrayList
            list.add(account);
        }
        System.out.println(list);

        connection.close();
        statement.close();
        resultSet.close();
    }
}