Spring 管理事务的方式有几种

@Transactional
public class TransactionalService {
    public void executeAction() {
        // 业务逻辑代码
    }
}

<tx:advice id="txAdvice" transaction-manager="transactionManager">
    <tx:attributes>
        <tx:method name="*" propagation="REQUIRED"/>
    </tx:attributes>
</tx:advice>

<aop:config>
    <aop:pointcut id="serviceOperation" expression="execution(* com.example.service.*.*(..))"/>
    <aop:advisor advice-ref="txAdvice" pointcut-ref="serviceOperation"/>
</aop:config>

public class ProgrammaticallyTransactionalService {
    private final TransactionTemplate transactionTemplate;

    @Autowired
    public ProgrammaticallyTransactionalService(PlatformTransactionManager transactionManager) {
        this.transactionTemplate = new TransactionTemplate(transactionManager);
    }

    public Object someServiceMethod() {
        return transactionTemplate.execute(status -> {
            // 定义事务的执行逻辑
            return null;
        });
    }
}

public class ProgrammaticallyTransactionalService {
    private final PlatformTransactionManager transactionManager;

    @Autowired
    public ProgrammaticallyTransactionalService(PlatformTransactionManager transactionManager) {
        this.transactionManager = transactionManager;
    }

    public Object someServiceMethod() {
        DefaultTransactionDefinition definition = new DefaultTransactionDefinition();
        TransactionStatus status = transactionManager.getTransaction(definition);
        try {
            // 执行业务逻辑
            transactionManager.commit(status);
        } catch (Exception ex) {
            transactionManager.rollback(status);
            throw ex;
        }
        return null;
    }
}