我正在尝试获取旧实体@HandleBeforeSave。

@Component
@RepositoryEventHandler(Customer.class)
public class CustomerEventHandler {

    private CustomerRepository customerRepository;

    @Autowired
    public CustomerEventHandler(CustomerRepository customerRepository) {
        this.customerRepository = customerRepository;
    }

    @HandleBeforeSave
    public void handleBeforeSave(Customer customer) {
        System.out.println("handleBeforeSave :: customer.id = " + customer.getId());
        System.out.println("handleBeforeSave :: new customer.name = " + customer.getName());

        Customer old = customerRepository.findOne(customer.getId());
        System.out.println("handleBeforeSave :: new customer.name = " + customer.getName());
        System.out.println("handleBeforeSave :: old customer.name = " + old.getName());
    }
}

在这种情况下，我尝试使用findOne方法获取旧实体，但这会返回新事件。可能是由于当前会话中的Hibernate / Repository缓存。

有没有办法获得旧实体？

我需要此以确定给定属性是否已更改。如果属性是更改，则需要执行一些操作。