将@Service bean注入非spring类

Question

I have a websocket-config:

@Configuration
@EnableWebSocket
public class WebSocketConfig implements WebSocketConfigurer {
    public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) {
        registry.addHandler(new MessageHandler(), "/websocket")
                .setAllowedOrigins("*")
                .addInterceptors(new HttpSessionIdHandshakeInterceptor());;
    }
}

And i am facing structure crysis. As you can see, MessageHandler class is not @Service class. However the class itself needs reference to @Service classes. I provide the refference for MessageHandler from application context using:

ApplicationContext context = WebSocketService.getAppContext();
WebSocketService webSocketService= (WebSocketService) context.getBean("webSocketService");

However, the class needs more than 1 refference. I could just stack code above for all dependencies, or i could make MessageHandler @Service class, and autowire all dependencies.

Maing MessageHandler @Service class i will be unable to pass it as argument into addHandler() method. However i could do:

public MessageHandler getHandler(){
    ApplicationContext context = WebSocketService.getAppContext();
    return (MessageHandler) context.getBean("messageHandler");
}

public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) {
    registry.addHandler(getHandler(), "/websocket")
            .setAllowedOrigins("*")
            .addInterceptors(new HttpSessionIdHandshakeInterceptor());;
}

Which could save my from redundancy of code. However i feel unsure, whetever its good practice.

Is there any other way how to do this or am i stuck with this? Thanks for help!

Answer 1

I'm used to create a non-spring-managed bean:

public CreateOrderCommand createOrderCommand(Integer userId, Integer productId, Integer count) {
    CreateOrderCommand command = new CreateOrderCommand();
    command.setProductId(productId);
    command.setUserId(userId);
    command.setBuyCount(count);
    context.getAutowireCapableBeanFactory().autowireBean(command);
    context.getAutowireCapableBeanFactory().initializeBean(command, command.getClass().getName());
    return command;
}

This is inspired by how spring to autowire a test class.