Java Springboot异步执行事件监听和处理实例

import org.springframework.context.ApplicationEventPublisher;
@Service
public class OrderService {
    private final ApplicationEventPublisher eventPublisher;
    public OrderService(ApplicationEventPublisher eventPublisher) {
        this.eventPublisher = eventPublisher;
    }
    public void createOrder(String orderId) {
        // 处理订单创建逻辑
        // 发布订单创建事件
        eventPublisher.publishEvent(new OrderCreatedEvent(this, orderId));
    }
}

import org.springframework.context.ApplicationListener;
public class OrderCreatedEventListener implements ApplicationListener<OrderCreatedEvent> {
    @Override
    public void onApplicationEvent(OrderCreatedEvent event) {
        // 处理订单创建事件
        System.out.println("Order with ID " + event.getOrderId() + " has been created.");
        // 可以在这里添加更多的处理逻辑
    }
}

import org.springframework.stereotype.Component;
@Component
public class OrderCreatedEventListener implements ApplicationListener<OrderCreatedEvent> {
    // ...
}

import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Bean;
@Configuration
public class EventConfig {
    @Bean
    public ApplicationListener<OrderCreatedEvent> orderCreatedEventListener() {
        return new OrderCreatedEventListener();
    }
}