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Как Spring обрабатывает исключения в @Transactional методе?
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Любое исключение приводит к откату транзакции
Транзакция не откатывается автоматически, если не вызвать TransactionStatus.setRollbackOnly()
Транзакция откатывается только при возникновении RuntimeException или Error
Spring создаёт новую транзакцию при каждом исключении, чтобы попытаться выполнить операцию повторно.
Если метод @Transactional выбрасывает исключение, Spring закрывает весь контекст приложения.
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