Spring Source Learning Spring configuration Transaction mode is required, but business layer throws transactionrequiredexception exception problem

(1) Spring throws an exception point: org.springframework.orm.jpa.EntityManagerFactoryUtils

 Public StaticDataAccessException Convertjpaaccessexceptionifpossible (RuntimeException ex) {//following the JPA specification, a persistence provider can also//throw these, exceptions, besides persistenceexception.        if(exinstanceofillegalstateexception) {            return Newinvaliddataaccessapiusageexception (Ex.getmessage (), ex); }        if(exinstanceofillegalargumentexception) {            return Newinvaliddataaccessapiusageexception (Ex.getmessage (), ex); }        //Check for well-known persistenceexception subclasses.        if(exinstanceofentitynotfoundexception) {            return Newjpaobjectretrievalfailureexception ((entitynotfoundexception) ex); }        if(exinstanceofnoresultexception) {            return NewEmptyresultdataaccessexception (Ex.getmessage (), 1, ex); }        if(exinstanceofnonuniqueresultexception) {            return NewIncorrectresultsizedataaccessexception (Ex.getmessage (), 1, ex); }        if(exinstanceofquerytimeoutexception) {            return Neworg.springframework.dao.QueryTimeoutException (Ex.getmessage (), ex); }        if(exinstanceoflocktimeoutexception) {            return Newcannotacquirelockexception (Ex.getmessage (), ex); }        if(exinstanceofpessimisticlockexception) {            return Newpessimisticlockingfailureexception (Ex.getmessage (), ex); }        if(exinstanceofoptimisticlockexception) {            return Newjpaoptimisticlockingfailureexception ((optimisticlockexception) ex); }        if(exinstanceofentityexistsexception) {            return Newdataintegrityviolationexception (Ex.getmessage (), ex); }                //the point at which the exception is thrown        if(exinstanceoftransactionrequiredexception) {            return Newinvaliddataaccessapiusageexception (Ex.getmessage (), ex); }        //If We have another kind of persistenceexception, throw it.        if(exinstanceofpersistenceexception) {            return NewJpasystemexception (ex); }        //If We get here, we have a exception that resulted from the user code,//rather than the persistence provider, so we return NULL to indicate//That's translation should not occur.        return NULL; }

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(2) Exception information

Error org.springframework.aop.interceptor.simpleasyncuncaughtexceptionhandler-unexpected error occurred invoking Async method ' public void (here omit specific industry Event listener Class) Listener.onapplicationevent (Completeevent) '. Org.springframework.dao.InvalidDataAccessApiUsageException:no transaction is in progress; nested exception is Javax.persistence.TransactionRequiredException:no transaction is in progress at Org.springframework.orm.jpa.EntityManagerFactoryUtils.convertJpaAccessExceptionIfPossible ( Entitymanagerfactoryutils.java:413) ~[spring-orm-4.3.9.release.jar:4.3.9. RELEASE] at org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible ( Hibernatejpadialect.java:246) ~[spring-orm-4.3.9.release.jar:4.3.9. RELEASE] at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible ( Abstractentitymanagerfactorybean.java:488) ~[spring-orm-4.3.9.release.jar:4.3.9. RELEASE] at org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible ( Chainedpersistenceexceptiontranslator.java:(~[spring-tx-4.3.9.release.jar:4.3.9). RELEASE] at Org.springframework.dao.support.DataAccessUtils.translateIfNecessary (Dataaccessutils.java:213) ~[spring-tx-4.3.9.release.jar:4.3.9. RELEASE] at Org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke ( Persistenceexceptiontranslationinterceptor.java:147) ~[spring-tx-4.3.9.release.jar:4.3.9. RELEASE] at Org.springframework.aop.framework.ReflectiveMethodInvocation.proceed (Reflectivemethodinvocation.java :179) [spring-aop-4.3.9.release.jar:4.3.9. RELEASE] at org.springframework.data.jpa.repository.support.crudmethodmetadatapostprocessor$ Crudmethodmetadatapopulatingmethodintercceptor.invoke (Crudmethodmetadatapostprocessor.java:122) ~[spring-data-jpa-1.8.0. RELEASE.jar:na] at Org.springframework.aop.framework.ReflectiveMethodInvocation.proceed ( Reflectivemethodinvocation.java:179) [spring-aop-4.3.9.release.jar:4.3.9. RELEASE] at Org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke ( Exposeinvocationinterceptor.java:(spring-aop-4.3.9.release.jar:4.3.9) [. RELEASE] at Org.springframework.aop.framework.ReflectiveMethodInvocation.proceed (Reflectivemethodinvocation.java :179) [spring-aop-4.3.9.release.jar:4.3.9. RELEASE] at Org.springframework.aop.framework.JdkDynamicAopProxy.invoke (Jdkdynamicaopproxy.java:213) ~[spring-aop-4.3.9.release.jar:4.3.9. RELEASE] at Com.sun.proxy. $Proxy 55.saveAndFlush (Unknown Source)~[Na:na]//omitting business class informationAt Org.springframework.cglib.proxy.MethodProxy.invoke (methodproxy.java:204) [spring-core-4.3.9.release.jar:4.3.9. RELEASE] at Org.springframework.aop.framework.cglibaopproxy$cglibmethodinvocation.invokejoinpoint ( Cglibaopproxy.java:738) [spring-aop-4.3.9.release.jar:4.3.9. RELEASE] at Org.springframework.aop.framework.ReflectiveMethodInvocation.proceed (Reflectivemethodinvocation.java :157) [spring-aop-4.3.9.release.jar:4.3.9. RELEASE] at org.springframework.transaction.interceptor.transactioninterceptor$1.proceedWithInvocation (transactioninterceptor.java:99) ~[spring-tx-4.3.9.release.jar:4.3.9. RELEASE] at Org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction ( Transactionaspectsupport.java:282) [spring-tx-4.3.9.release.jar:4.3.9. RELEASE] at Org.springframework.transaction.interceptor.TransactionInterceptor.invoke ( Transactioninterceptor.java:(+) [spring-tx-4.3.9.release.jar:4.3.9. RELEASE] at Org.springframework.aop.framework.ReflectiveMethodInvocation.proceed (Reflectivemethodinvocation.java :179) [spring-aop-4.3.9.release.jar:4.3.9. RELEASE] at Org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke ( Exposeinvocationinterceptor.java:(spring-aop-4.3.9.release.jar:4.3.9) [. RELEASE] at Org.springframework.aop.framework.ReflectiveMethodInvocation.proceed (Reflectivemethodinvocation.java :179) [spring-aop-4.3.9.release.jar:4.3.9. RELEASE] at Org.springframework.aop.framework.cglibaopproxy$dynamicadvisedinterceptor.intercept ( Cglibaopproxy.java:673) [spring-aop-4.3.9.release.jar:4.3.9. RELEASE] atl$ $EnhancerBySpringCGLIB $ $a 432af48.complete (<generated>) ~--At Org.springframework.transaction.interceptor.TransactionInterceptor.invoke (Transactioninterceptor.java: (+) [spring-tx-4.3.9.release.jar:4.3.9. RELEASE] at Org.springframework.aop.framework.ReflectiveMethodInvocation.proceed (Reflectivemethodinvocation.java :179) [spring-aop-4.3.9.release.jar:4.3.9. RELEASE] at Org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke ( Persistenceexceptiontranslationinterceptor.java:136) ~[spring-tx-4.3.9.release.jar:4.3.9. RELEASE] ...Common frames omitted

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Spring Source Learning Spring configuration Transaction mode is required, but business layer throws transactionrequiredexception exception problem