spring启动错误Singleton bean creation not allowed while the singletons of this factory are indestruction
作者:西木风落
一、问题描述
最近在使用线程池做spring的任务Test时,启动服务抛出异常:Singleton bean creation not allowed while the singletons of this factory are in destruction (Do not request a bean from a BeanFactory in a destroy method implementation!)
具体的错误信息如下:
Exception in thread "pool-3-thread-1" Exception in thread "pool-3-thread-2" org.springframework.beans.factory.BeanCreationNotAllowedException: Error creating bean with name 'jade.datasourceFactory': Singleton bean creation not allowed while the singletons of this factory are in destruction (Do not request a bean from a BeanFactory in a destroy method implementation!)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:216)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:534)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:523)
at net.paoding.rose.jade.context.spring.SpringDataSourceFactoryDelegate.getDataSource(SpringDataSourceFactoryDelegate.java:38)
at net.paoding.rose.jade.dataaccess.DefaultDataAccessFactory.getDataAccess(DefaultDataAccessFactory.java:46)
at net.paoding.rose.jade.statement.SelectQuerier.execute(SelectQuerier.java:60)
at net.paoding.rose.jade.statement.SelectQuerier.execute(SelectQuerier.java:56)
at net.paoding.rose.jade.statement.JdbcStatement.execute(JdbcStatement.java:112)
at net.paoding.rose.jade.context.JadeInvocationHandler.invoke(JadeInvocationHandler.java:143)
at com.sun.proxy.$Proxy53.getSapPayDetailList(Unknown Source)
at com.xiaomi.mifi.scf.accountcenter.service.gateway.SapPayDetailService.getSapPayDetailList(SapPayDetailService.java:45)
at com.xiaomi.mifi.scf.accountcenter.task.reconcile.SapReconcile.sapPaydetailClean(SapReconcile.java:70)
at com.xiaomi.mifi.scf.accountcenter.task.reconcile.SapReconcile.lambda$reconcile$0(SapReconcile.java:58)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
二、原因分析
经过原因分析,是单例的bean在创建的时候,容器已经处于销毁阶段,生命周期不同,不允许再次创建生产Bean。为什么会发生这个问题呢?
具体看了代码,是因为我的任务提交给了线程池,
@Test public void testReconcile(){ sapReconcile.reconcile("123",2); } public TRResponse reconcile(String taskId, int type) { log.info("当日对账处理|taskId:{}, type:{}, startTime:{}", taskId, type, DateUtil.getNowStr()); List<Long> times = getReconcileTime(type); executor.execute(() -> sapPaydetailClean(times.get(0),times.get(1))); executor.execute(() -> paydetailClean(times.get(0),times.get(1))); log.info("当日对账处理|endTime:{}", DateUtil.getNowStr()); return new TRResponse().setCode(ResponseCodeEnum.SUCCESS.getCode()); }
test主线程运行时,启动了线程池,线程池中的任务会加载bean,但因为异步原因,任务提交给线程池后,主线程结束了,开始销毁bean容器,而线程池任务有需要创建出bean,所以出现上述的异常情况。
三、解决方案
3.1 测试用例中增加线程池的任务判断,如果有线程池任务未完成,当前主线程阻塞。
@Test public void test2(){ sapReconcile.reconcile("123",2); while (sapReconcile.executor.getActiveCount() > 0){ try { Thread.sleep(500); } catch (InterruptedException e) { e.printStackTrace(); } } }
3.2 利用屏障等同步工具,等待线程执行完成后再退出主线程。
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