JDBC连接数据库（查询）

public class App {
    public static void main(String[] args) throws Exception {
        
        
        Class.forName("com.mysql.cj.jdbc.Driver");
        
        Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/vip?serverTimezone=GMT&useSSL=false", "root", "zhangpn");
        
        Statement stat = conn.createStatement();
        
        ResultSet res = stat.executeQuery("select * from sys_user");
        
        while(res.next()){
            System.out.println(res.getString(1)+"***"+res.getString(2)+"***"+res.getString(3)+"***"+res.getString(4));
        }
        
        res.close();
        stat.close();
        conn.close();
        
    }
}