Spring @Async 方法未捕获/重新抛出异常的问题

自从我启用将同步方法转换为异步方法以来，我遇到了一个问题：如果从方法体内抛出异常，我将无法再重新抛出它。

我先展示一下代码：

我的异步/任务执行器配置：

@Configuration
@EnableAsync
public class AsyncConfiguration implements AsyncConfigurer {

    @Override
    public Executor getAsyncExecutor() {
        ThreadPoolTaskExecutor taskExecutor = new ThreadPoolTaskExecutor();
        taskExecutor.setCorePoolSize(5);
        taskExecutor.setMaxPoolSize(10);
        taskExecutor.setQueueCapacity(25);
        taskExecutor.initialize();
        return taskExecutor;
    }
}

我的异步方法：

@Async
@Override
public void sendPasswordResetInfo(String email) {
    Assert.hasText(email);
    Member member = memberRepository.findByEmail(email);
    try {
        mailerService.doMailPasswordResetInfo(member);//EXCEPTION THROWN HERE
    } catch (MessagingException | MailSendException e) {
        log.error("MessagingException | MailSendException", e);
        // TODO: not thrown since @Async is used
        throw new MailerException("MessagingException | MailSendException");//NOT CALLED
    }
}

当异常引发时我在控制台中看到的一切mailerService.doMailPasswordResetInfo是以下堆栈跟踪：

2014-06-20 18:46:29,249 [ThreadPoolTaskExecutor-1] ERROR com.bignibou.service.preference.PreferenceServiceImpl - MessagingException | MailSendException
org.springframework.mail.MailSendException: Failed messages: javax.mail.SendFailedException: Invalid Addresses;
  nested exception is:
    com.sun.mail.smtp.SMTPAddressFailedException: 550 5.1.1 Adresse d au moins un destinataire invalide. Invalid recipient. OFR204_418 [418]
; message exception details (1) are:
Failed message 1:
javax.mail.SendFailedException: Invalid Addresses;
  nested exception is:
    com.sun.mail.smtp.SMTPAddressFailedException: 550 5.1.1 Adresse d au moins un destinataire invalide. Invalid recipient. OFR204_418 [418]

    at com.sun.mail.smtp.SMTPTransport.rcptTo(SMTPTransport.java:1294)
    at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:635)
    at org.springframework.mail.javamail.JavaMailSenderImpl.doSend(JavaMailSenderImpl.java:424)
    at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:346)
    at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:341)
    at com.bignibou.service.mailer.MailerServiceImpl.doMailPasswordResetInfo(MailerServiceImpl.java:82)
    at com.bignibou.service.preference.PreferenceServiceImpl.sendPasswordResetInfo_aroundBody10(PreferenceServiceImpl.java:112)
    at com.bignibou.service.preference.PreferenceServiceImpl$AjcClosure11.run(PreferenceServiceImpl.java:1)
    at org.springframework.transaction.aspectj.AbstractTransactionAspect.ajc$around$org_springframework_transaction_aspectj_AbstractTransactionAspect$1$2a73e96cproceed(AbstractTransactionAspect.aj:59)
    at org.springframework.transaction.aspectj.AbstractTransactionAspect$AbstractTransactionAspect$1.proceedWithInvocation(AbstractTransactionAspect.aj:65)
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:262)
    at org.springframework.transaction.aspectj.AbstractTransactionAspect.ajc$around$org_springframework_transaction_aspectj_AbstractTransactionAspect$1$2a73e96c(AbstractTransactionAspect.aj:63)
    at com.bignibou.service.preference.PreferenceServiceImpl.sendPasswordResetInfo_aroundBody12(PreferenceServiceImpl.java:108)
    at com.bignibou.service.preference.PreferenceServiceImpl$AjcClosure13.run(PreferenceServiceImpl.java:1)
    at org.springframework.scheduling.aspectj.AbstractAsyncExecutionAspect.ajc$around$org_springframework_scheduling_aspectj_AbstractAsyncExecutionAspect$1$6c004c3eproceed(AbstractAsyncExecutionAspect.aj:58)
    at org.springframework.scheduling.aspectj.AbstractAsyncExecutionAspect.ajc$around$org_springframework_scheduling_aspectj_AbstractAsyncExecutionAspect$1$6c004c3e(AbstractAsyncExecutionAspect.aj:62)
    at com.bignibou.service.preference.PreferenceServiceImpl.sendPasswordResetInfo(PreferenceServiceImpl.java:108)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:483)
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
    at org.springframework.aop.interceptor.AsyncExecutionInterceptor$1.call(AsyncExecutionInterceptor.java:97)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: com.sun.mail.smtp.SMTPAddressFailedException: 550 5.1.1 Adresse d au moins un destinataire invalide. Invalid recipient. OFR204_418 [418]

    at com.sun.mail.smtp.SMTPTransport.rcptTo(SMTPTransport.java:1145)
    ... 28 more

FYI, MailerException是我在应用程序中使用的自定义异常。真正让我印象深刻的是这个MailerException异常似乎没有被捕获或重新抛出......

有人可以帮忙吗？

编辑1：我修改了我的异步服务方法，如下所示：

@Async
    @Override
    public Future<Void> sendPasswordResetInfo(String email) {
        Assert.hasText(email);
        Member member = memberRepository.findByEmail(email);
        try {
            mailerService.doMailPasswordResetInfo(member);
            return new AsyncResult<Void>(null);
        } catch (MessagingException | MailSendException e) {
            log.error("MessagingException | MailSendException", e);
            //HERE: HOW DO I SEND THE MailerException USING THE FUTURE??
            throw new MailerException("MessagingException | MailSendException");
        }
    }

然而，我是不知道如何使用 AsyncResult 将 MailerException 发送到 Web 层从上面的 catch 块内...

你的日志显示

2014-06-20 18:46:29,249 [ThreadPoolTaskExecutor-1] ERROR com.bignibou.service.preference.PreferenceServiceImpl - MessagingException | MailSendException

这是由记录的

log.error("MessagingException | MailSendException", e);

the Exception然后被抛出

throw new MailerException("MessagingException | MailSendException");//NOT CALLED

被捕获Thread由底层执行ThreadPoolTaskExecutor。该代码是异步运行的，因此异常是在与调用该方法的线程不同的线程中引发的。

someCode();
yourProxy.sendPasswordResetInfo(someValue()); // exception thrown in other thread
moreCode();

如果你让你的方法返回一个Future如图所示here http://docs.spring.io/spring/docs/current/spring-framework-reference/html/scheduling.html#scheduling-annotation-support-async你将能够调用get()在它上面，这将重新抛出在内部抛出的任何异常@Async方法，包裹在ExecutionException.