我正在使用页面大小为40的JpaPagingItemReader。但是每次批量执行时，我都在获取java.lang.IllegalStateException：EntityManager已关闭
下面是代码
@Autowired
private EntityManagerFactory entityManagerFactory;
@PersistenceContext
private EntityManager em;
@Bean(destroyMethod = "")
public ItemReader<QuoteOfferFulfillment> reader() {
JpaPagingItemReader<QuoteOfferFulfillment> fullfillment = new JpaPagingItemReader<>();
try {
String sqlQuery = "SELECT * FROM QUOTE_OFFER_FULFILLMENT QOF WHERE QOF.STATUS='"
+ FULFILLMENT_READY + "'" + " OR QOF.STATUS='"
+ FAILED + "'" + " AND RETRY_COUNT < 3";
JpaNativeQueryProvider<QuoteOfferFulfillment> queryProvider = new JpaNativeQueryProvider<QuoteOfferFulfillment>();
queryProvider.setSqlQuery(sqlQuery);
queryProvider.setEntityClass(QuoteOfferFulfillment.class);
queryProvider.afterPropertiesSet();
fullfillment.setEntityManagerFactory(em.getEntityManagerFactory());
//fullfillment.setEntityManagerFactory(entityManagerFactory);
fullfillment.setPageSize(40);
fullfillment.setQueryProvider(queryProvider);
fullfillment.afterPropertiesSet();
fullfillment.setSaveState(true);
}
catch (Exception e) {
System.out.println("BatchConfiguration.reader() ==> error " + e.getMessage());
}
return fullfillment;
}
我面临的异常：
[ERROR] org.springframework.batch.core.step.AbstractStep - Encountered an error executing step offersFulfillmentstep in job offersFulfillmentJob
java.lang.IllegalStateException: EntityManager is closed
at org.hibernate.jpa.internal.EntityManagerImpl.checkOpen(EntityManagerImpl.java:97)
at org.hibernate.jpa.internal.EntityManagerImpl.checkOpen(EntityManagerImpl.java:88)
at org.hibernate.jpa.internal.EntityManagerImpl.getSession(EntityManagerImpl.java:103)
at org.hibernate.jpa.internal.TransactionImpl.getSession(TransactionImpl.java:35)
at org.hibernate.jpa.internal.TransactionImpl.begin(TransactionImpl.java:45)
at org.springframework.batch.item.database.JpaPagingItemReader.doReadPage(JpaPagingItemReader.java:197)
at org.springframework.batch.item.database.AbstractPagingItemReader.doRead(AbstractPagingItemReader.java:108)
at org.springframework.batch.item.support.AbstractItemCountingItemStreamItemReader.read(AbstractItemCountingItemStreamItemReader.java:88)
at org.springframework.batch.core.step.item.SimpleChunkProvider.doRead(SimpleChunkProvider.java:91)
at org.springframework.batch.core.step.item.SimpleChunkProvider.read(SimpleChunkProvider.java:157)
at org.springframework.batch.core.step.item.SimpleChunkProvider$1.doInIteration(SimpleChunkProvider.java:116)
at org.springframework.batch.repeat.support.RepeatTemplate.getNextResult(RepeatTemplate.java:374)
at org.springframework.batch.repeat.support.RepeatTemplate.executeInternal(RepeatTemplate.java:215)
at org.springframework.batch.repeat.support.RepeatTemplate.iterate(RepeatTemplate.java:144)
at org.springframework.batch.core.step.item.SimpleChunkProvider.provide(SimpleChunkProvider.java:110)
at org.springframework.batch.core.step.item.ChunkOrientedTasklet.execute(ChunkOrientedTasklet.java:69)
at org.springframework.batch.core.step.tasklet.TaskletStep$ChunkTransactionCallback.doInTransaction(TaskletStep.java:406)
at org.springframework.batch.core.step.tasklet.TaskletStep$ChunkTransactionCallback.doInTransaction(TaskletStep.java:330)
at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:133)
at org.springframework.batch.core.step.tasklet.TaskletStep$2.doInChunkContext(TaskletStep.java:272)
at org.springframework.batch.core.scope.context.StepContextRepeatCallback.doInIteration(StepContextRepeatCallback.java:81)
at org.springframework.batch.repeat.support.RepeatTemplate.getNextResult(RepeatTemplate.java:374)
at org.springframework.batch.repeat.support.RepeatTemplate.executeInternal(RepeatTemplate.java:215)
at org.springframework.batch.repeat.support.RepeatTemplate.iterate(RepeatTemplate.java:144)
at org.springframework.batch.core.step.tasklet.TaskletStep.doExecute(TaskletStep.java:257)
at org.springframework.batch.core.step.AbstractStep.execute(AbstractStep.java:200)
at org.springframework.batch.core.job.SimpleStepHandler.handleStep(SimpleStepHandler.java:148)
at org.springframework.batch.core.job.flow.JobFlowExecutor.executeStep(JobFlowExecutor.java:64)
at org.springframework.batch.core.job.flow.support.state.StepState.handle(StepState.java:67)
at org.springframework.batch.core.job.flow.support.SimpleFlow.resume(SimpleFlow.java:169)
at org.springframework.batch.core.job.flow.support.SimpleFlow.start(SimpleFlow.java:144)
at org.springframework.batch.core.job.flow.FlowJob.doExecute(FlowJob.java:134)
at org.springframework.batch.core.job.AbstractJob.execute(AbstractJob.java:306)
at org.springframework.batch.core.launch.support.SimpleJobLauncher$1.run(SimpleJobLauncher.java:135)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
[DEBUG] org.hibernate.jpa.spi.AbstractEntityManagerImpl - Mark transaction for rollback
[ERROR] org.springframework.batch.core.step.AbstractStep - Exception while closing step execution resources in step offersFulfillmentstep in job offersFulfillmentJob
org.springframework.batch.item.ItemStreamException: Error while closing item reader
at org.springframework.batch.item.support.AbstractItemCountingItemStreamItemReader.close(AbstractItemCountingItemStreamItemReader.java:136)
at org.springframework.batch.item.support.CompositeItemStream.close(CompositeItemStream.java:85)
at org.springframework.batch.core.step.tasklet.TaskletStep.close(TaskletStep.java:305)
at org.springframework.batch.core.step.AbstractStep.execute(AbstractStep.java:271)
at org.springframework.batch.core.job.SimpleStepHandler.handleStep(SimpleStepHandler.java:148)
at org.springframework.batch.core.job.flow.JobFlowExecutor.executeStep(JobFlowExecutor.java:64)
at org.springframework.batch.core.job.flow.support.state.StepState.handle(StepState.java:67)
at org.springframework.batch.core.job.flow.support.SimpleFlow.resume(SimpleFlow.java:169)
at org.springframework.batch.core.job.flow.support.SimpleFlow.start(SimpleFlow.java:144)
at org.springframework.batch.core.job.flow.FlowJob.doExecute(FlowJob.java:134)
at org.springframework.batch.core.job.AbstractJob.execute(AbstractJob.java:306)
at org.springframework.batch.core.launch.support.SimpleJobLauncher$1.run(SimpleJobLauncher.java:135)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.IllegalStateException: EntityManager is closed
at org.hibernate.jpa.internal.EntityManagerImpl.checkOpen(EntityManagerImpl.java:97)
at org.hibernate.jpa.internal.EntityManagerImpl.checkOpen(EntityManagerImpl.java:88)
at org.hibernate.jpa.internal.EntityManagerImpl.close(EntityManagerImpl.java:140)
at sun.reflect.GeneratedMethodAccessor1564.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:347)
at com.sun.proxy.$Proxy1171.close(Unknown Source)
at org.springframework.batch.item.database.JpaPagingItemReader.doClose(JpaPagingItemReader.java:236)
at org.springframework.batch.item.support.AbstractItemCountingItemStreamItemReader.close(AbstractItemCountingItemStreamItemReader.java:133)
... 14 common frames omitted
观察：每个事务都回滚并且正在成功处理。不知道发生了什么
我相信JpaPagingItemReader有问题。每次迭代都会导致实体关闭问题，然后再次处理成功。请让我知道是否有人面临相同的问题以及任何其他选择。