BeanNotOfRequiredTypeException：名为X的Bean应该是X类型，但实际上是'com.sun.proxy类型。$ Proxy

Question

我有这样的类和Spring上下文。

如何修复这个错误的Java配置，而不是xml？

我试过其他帖子的一些解决方案，但没有成功。

@Service
@Transactional
public class XCalculationService implements VoidService<X> {
}

public interface VoidService<Input> {
}

@AllArgsConstructor
public class XService {
private XCalculationService calculationService;
}

@Configuration
public class ServiceConfiguration {
@Bean
public OrderService orderService(XCalculationService calculationService) {
    return new XService(calculationService);
}

@Bean
public XCalculationService calculationService() {
    return new XCalculationService ();
}
}

错误

BeanNotOfRequiredTypeException: Bean named 'calculationService' is expected to be of type 'com.x.XCalculationService' but was actually of type 'com.sun.proxy.$Proxy

Answer 1

这是100％修复：

@EnableTransactionManagement(proxyTargetClass = true)

Answer 2

我想你已经激活了@ComponentScan，它会扫描你的@Service注释XCalculationService类。

所以你应该从@Service中删除XCalculationService

或删除

@Bean
public XCalculationService calculationService() {
    return new XCalculationService ();
}

来自ServiceConfiguration