private static Connection getConnection() {
    try {
        String dbUrl = "jdbc:postgresql://ec2-54-83-27-147.compute-1.amazonaws.com:5432/d1o8bcicho5jj?user=usuario&password=senha&sslmode=require";
        return DriverManager.getConnection(dbUrl);
    } catch (SQLException e) {
        e.printStackTrace();
    }
    return null;
}