Spring调用this导致事务失效的三种解决方案

@Service
public class OrderService {

    public void createOrder() {
        // 直接调用
        this.saveOrder();   // ❌ 不经过代理
    }

    @Transactional
    public void saveOrder() {
        // 数据库操作
    }
}

createOrder() → this.saveOrder()

@Service
public class OrderService {

    @Autowired
    private OrderService orderService; // 注入代理对象

    public void createOrder() {
        orderService.saveOrder(); // ✅ 通过代理调用
    }

    @Transactional
    public void saveOrder() {
    }
}

@EnableAspectJAutoProxy(exposeProxy = true)

public void createOrder() {
    ((OrderService) AopContext.currentProxy()).saveOrder();
}

@Service
public class OrderService {

    @Autowired
    private OrderTxService orderTxService;

    public void createOrder() {
        orderTxService.saveOrder();
    }
}

@Service
public class OrderTxService {

    @Transactional
    public void saveOrder() {
    }
}

@Autowired
private TransactionTemplate transactionTemplate;

public void createOrder() {
    transactionTemplate.execute(status -> {
        saveOrder();
        return null;
    });
}