What are the methods for implementing transactions in S…

There are several ways to implement transactions in Spring Boot.

1. Using this annotation will indicate that the following method is transactional.

@Service
public class UserService {
    @Autowired
    private UserRepository userRepository;

    @Transactional
    public void saveUser(User user) {
        userRepository.save(user);
    }
}

1. Enable management of transactions

@Configuration
@EnableTransactionManagement
public class TransactionConfig {

    @Bean
    public DataSourceTransactionManager transactionManager(DataSource dataSource) {
        return new DataSourceTransactionManager(dataSource);
    }
}

@Service
public class UserService {
    @Autowired
    private UserRepository userRepository;

    public void saveUser(User user) {
        userRepository.save(user);
    }
}

1. Template for a transaction

@Service
public class UserService {
    @Autowired
    private TransactionTemplate transactionTemplate;
    @Autowired
    private UserRepository userRepository;

    public void saveUser(User user) {
        transactionTemplate.execute(new TransactionCallbackWithoutResult() {
            protected void doInTransactionWithoutResult(TransactionStatus status) {
                userRepository.save(user);
            }
        });
    }
}

The above are three commonly used methods for implementing transactions, choose the appropriate method based on the specific situation.