[Hibernate] org.springframework.dao.EmptyResultDataAccessException: No entity found for query;

Hibernate 관련 에러 발생.

Hibernate framework를 사용하던중 아래와 같은 error가 발생하였다.

org.springframework.dao.EmptyResultDataAccessException: No entity found for query; 

nested exception is javax.persistence.NoResultException: No entity found for query

에러 로그

              An unexpected error has occurred                
<!--         
org.springframework.dao.EmptyResultDataAccessException: No entity found for query; nested exception is javax.persistence.NoResultException: No entity found for query
    at org.springframework.orm.jpa.EntityManagerFactoryUtils.convertJpaAccessExceptionIfPossible(EntityManagerFactoryUtils.java:301)
    at org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:106)
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible(AbstractEntityManagerFactoryBean.java:403)
    at org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:58)
    at org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:213)
    at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:163)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
    ....... 생략
    at java.lang.Thread.run(Thread.java:662)
Caused by: javax.persistence.NoResultException: No entity found for query
    at org.hibernate.ejb.QueryImpl.getSingleResult(QueryImpl.java:286)
    at org.hibernate.ejb.criteria.CriteriaQueryCompiler$3.getSingleResult(CriteriaQueryCompiler.java:257)
    at com.alticast.cas3.administrator.service.impl.StatSubscriberServiceImpl.countGroupByRegioncode(StatSubscriberServiceImpl.java:134)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
    at org.springframework.security.access.intercept.aopalliance.MethodSecurityInterceptor.invoke(MethodSecurityInterceptor.java:64)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
    at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:155)
    ... 104 more

원인 분석

@Override
    public Long countGroupByRegioncode(StatSubscriberCommand command) {
        CriteriaBuilder criteriaBuilder = super.entityManager.getCriteriaBuilder();
        CriteriaQuery<Long> criteriaQuery = criteriaBuilder.createQuery(Long.class);
        // criteriaQuery.distinct(true); // TODO: when active, breaks the sort
        // on x-to-one property!
        // from
        Root<StatSubs> root = criteriaQuery.from(StatSubs.class);
 
        // select
        criteriaQuery = criteriaQuery.select(criteriaBuilder.count(root));
 
        // predicate
        Predicate predicate = getPredicate(root, criteriaBuilder, command);
        if (predicate != null) {
            criteriaQuery = criteriaQuery.where(predicate);
        }
 
        // group by
        criteriaQuery.groupBy(root.get("statSubsPK").<String> get("statDate"));
 
        TypedQuery<Long> typedQuery = super.entityManager.createQuery(criteriaQuery);
    
        return typedQuery.getSingleResult();
    }

line 20 : statDate entity가 없는데 groupby로 지정하여 query를 수행하였던 것이 원인 

수정 전

TypedQuery<Long> typedQuery = super.entityManager.createQuery(criteriaQuery);
    
        return typedQuery.getSingleResult();

수정 후

TypedQuery<Long> typedQuery = super.entityManager.createQuery(criteriaQuery);
    try {
        return typedQuery.getSingleResult();
    } catch (NoResultException nre) {
        return 0l;
    }
 

NoResultException 처리를 해주어서 해결하였다.