spring启动错误Singleton bean creation not allowed while the singletons of this factory are indestruction

错误Singleton bean creation not allowed while the singletons of this factory are indestruction"/>

spring启动错误Singleton bean creation not allowed while the singletons of this factory are indestruction

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，

  @Testpublic 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。

 @Testpublic 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。