intent能传递页面数据

在封装中。。需要传递一个页面数据进去

  intent.putExtra("open_page",MainActivity.class);

如何获取呢 

private Class<SplashActivity> open_page;    
open_page = (Class<SplashActivity>) getIntent().getSerializableExtra("open_page");

    private void goToMainActivity() {
        startActivity(new Intent(this, open_page));
        finish();
    }