How to configure transaction using Spring annotation?

In Spring, you can configure transactions using the following annotations:

1. @EnableTransactionManagement: Add this annotation to the configuration class to enable Spring’s transaction management functionality.
2. @Transactional: Apply this annotation to methods that need transaction management enabled. When the method is called, Spring will automatically handle the beginning, commit, or rollback of the transaction.
3. @Transactional(propagation = Propagation.REQUIRED): This annotation can be used to configure the transaction propagation behavior. REQUIRED means that if there is no current transaction, a new transaction will be created; if there is an existing transaction, the method will join that transaction.
4. @Transactional(isolation = Isolation.READ_COMMITTED) is an annotation that sets the isolation level for transactions. Isolation.READ_COMMITTED means that a transaction can read and modify data that has already been committed, but cannot read data that has not been committed.
5. The @Transactional(rollbackFor = Exception.class) annotation can be used to specify when a transaction should rollback when encountering a specific exception. Using Exception.class means that any exception will trigger the transaction rollback.
6. The @Transactional annotation can be used to specify that the transaction should not rollback when encountering a specific exception.
7. The @Transactional(timeout = 60) annotation can be used to set the timeout for a transaction in seconds. If the transaction takes longer than the specified time, it will automatically rollback.

Here are some common Spring transaction annotation configuration methods that can be customized based on specific needs.