9_Application Events and Listeners #8
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nemoguigrat
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May 10, 2025
nemoguigrat
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nemoguigrat
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Вообще выглядит интересно, но ничего не работает. Из за отсутствия транзакции дальше события не прокидываются и не обрабатываются
| public void handlePaymentSuccessEvent(PaymentProcessedEvent event) { | ||
| log.info("Handle PaymentProcessedEvent (AFTER_COMMIT)..."); | ||
| log.info("Publish OrderCreatedEvent."); | ||
| eventPublisher.publishEvent(new OrderCreatedEvent()); |
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не обязательно публиковать. Можно сделать return этого события. Спринг сам его опубликует
| public class PaymentService { | ||
| private final ApplicationEventPublisher eventPublisher; | ||
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| @Transactional(value = REQUIRES_NEW, rollbackOn = Exception.class) |
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Я пробовал запускать проект и транзакция здесь не открывается даже с этими параметрами. Попробуй пересмотреть логику
| @Log4j2 | ||
| @Component | ||
| @RequiredArgsConstructor | ||
| public class PaymentEventListener { |
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Точно такой же перехватчик находится в пакете org.javaspringcourse.order.eventListener. Зачем это нужно?
| @@ -0,0 +1,27 @@ | |||
| package org.javaspringcourse.payment.eventListener; | |||
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пакеты в java лучше называть либо одним словом, либо без разделителей. eventlistener
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Студент: Аптуликсанов Руслан Германович
Преподаватель: Никита Иванов
handleOrderCreatedEvent- обычный,handleOrderCreatingEvent- async, классыPaymentProcessedEventListenerиPaymentEventListener- содержат TransactionalEventListener)PaymentProcessedEventListenerиPaymentEventListenerс помощью фаз AFTER_COMMIT и AFTER_ROLLBACK)В этом задании я попытался реализовать связь двух условных микросервисов OrderService и PaymentService через события и обработчики (в каждом сервисе стоят обработчики на события другого сервиса) (поэтому листенеров чуть больше, чем в условии).