Getting Spring Application context from a non bean object

First create a class called AppContextManager like below:

@Component
public class AppContextManager implements ApplicationContextAware{
    private static ApplicationContext _appCtx;

    @Override
    public void setApplicationContext(ApplicationContext ctx){
         _appCtx = ctx;
    }

    public static ApplicationContext getAppContext(){
        return _appCtx;
    } 
}

Annotate the above class with @Component or declare a bean for AppContextManager in your application context xml.

Now in your non-singleton non-spring instance use the following code snippet to obtain any other spring bean:

ApplicationContext ctx = ApplicationContextManager.getAppContext();
SomeSpringBean bean = ctx.getBean(SomeSpringBean.class);

And this would give you the bean instance anywhere in your code.