Question

我需要对Spring使用autowire注释注入的服务进行异步调用。我正在做这样的事情

@Component
Public class nameListener implements ApplicationListener<ContextRefreshEvent>{
@Autowire
protected ServiceName serviceName;

@Override
@Transactional
public onApplicationEvent(ContextRefreshEvent event){
  log(asyncMethod.get().longValue());
}

@Async
public CompletableFuture<Long> asyncMethod(){
 CompletableFuture<Long> result = CompletableFuture.supplyAsync(()-> serviceName.methodName());
  return result;
}

serviceBean配置：

@Configuration
public class serviceClassConfiguration{
@Autowired
protected serviceFactory;

@Bean
public ServiceType serviceName();
   //this only creates the type with the attributes it need
   return serviceFactory.createServiceName();
}

我得到的错误说明如下：

org.springframework.beans.factory.BeanCreationException;
Scope session is not active for the current thread;
consider defining a scoped proxy for this bean if you intend
to refer to it from a singleton;
nested exception is java.lang.IllegalStateException;
No thread-bound request found;
Are you referring to request attributes outside of an actual web request,
or processing a request outside of the originally receiving thread&;
If you are actually operating within a web request and still receive this
message, your code is probably running outside of DispatcherServlet;
In this case, use RequestContextListener or RequestContextFilter to
expose the current request

如果我正确理解了这个问题，我认为Spring会在依赖注入时注入代理，因此serviceName bean在asyncCall的范围内不可用，这是正确的吗？

我尝试仅使用原型范围为asyncMethod创建一个新类，因此可以在调用时随时创建它，并将其作为bean添加到listenerclass上，但这也不起作用。

我可以使用哪些变通方法来管理这种情况？

祝你好运

Answer 1

CompletableFuture.supplyAsync将在池中运行您的方法。

该线程完全没有收到@Transaction。

因此，您必须手动创建和共享/回滚您的交易

Spring @Async和java CompleteFuture提供异步：在异步方法

1 个答案: