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我正在使用spring-boot-starter-parent 1.2.0.RELEASE的Spring Boot项目。我试图通过spring SpringJtaSessionContext扩展来配置spring来使用Hibernate的JTASssionContext。春季数据JPA NPE in validateQuery与自定义entityManagerFactory和查询注释
在我的@Configuration类中，我返回了配置为LocalContainerEntityManagerFactoryBean的JTA。
@Configuration
@EnableJpaRepositories(repositoryFactoryBeanClass = JpaRepositoryFactoryBean.class)
@EntityScan(basePackageClasses = Event.class)
public class JPAConfig {
@Autowired
private DataSource dataSource;
@Autowired
private JpaVendorAdapter jpaVendorAdapter;
@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory(){
LocalContainerEntityManagerFactoryBean localContainerEntityManagerFactoryBean = new LocalContainerEntityManagerFactoryBean();
localContainerEntityManagerFactoryBean.setJtaDataSource(dataSource );
localContainerEntityManagerFactoryBean.setJpaVendorAdapter(jpaVendorAdapter);
HashMap<String, Object> properties = new HashMap<>();
properties.put("hibernate.current_session_context_class", "jta");
properties.put("javax.persistence.transactionType", "JTA");
properties.put("hibernate.dialect", "org.hibernate.dialect.SQLServerDialect");
properties.put("hibernate.format_sql", "true");
properties.put("hibernate.ejb.naming_strategy", "org.springframework.boot.orm.jpa.hibernate.SpringNamingStrategy");
localContainerEntityManagerFactoryBean.setJpaPropertyMap(properties);
return localContainerEntityManagerFactoryBean;
}
}
似乎一切都连接好，但我遇到了一个NPE的org.springframework.data.jpa.repository.query.SimpleJpaQuery
/**
* Validates the given query for syntactical correctness.
*
* @param query
* @param em
*/
private final void validateQuery(String query, String errorMessage) {
if (getQueryMethod().isProcedureQuery()) {
return;
}
EntityManager validatingEm = null;
try {
validatingEm = getEntityManager().getEntityManagerFactory().createEntityManager();
....
到getEntityManager().getEntityManagerFactory().createEntityManager();导致这似乎NPE的通话将被未来内而外的createEntityManager()
提供的getEntityManager()类似乎是我在JPAConfig中定义的LocalContainerEntityManagerFactoryBean。提供的EntityManagerFactory似乎是org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean。看起来像createEntityManager（）里面的东西是空的。
这将导致以下堆栈跟踪
Caused by: java.lang.IllegalArgumentException: Validation failed for query for method public abstract com.vnomicscorp.dw.model.Event com.vnomicscorp.dw.webservice.repo.EventRepository.findByCompositeKey(com.vnomicscorp.dw.model.Vehicle,com.vnomicscorp.dw.model.EventType,long)!
at org.springframework.data.jpa.repository.query.SimpleJpaQuery.validateQuery(SimpleJpaQuery.java:87)
at org.springframework.data.jpa.repository.query.SimpleJpaQuery.<init>(SimpleJpaQuery.java:57)
at org.springframework.data.jpa.repository.query.JpaQueryFactory.fromMethodWithQueryString(JpaQueryFactory.java:70)
at org.springframework.data.jpa.repository.query.JpaQueryFactory.fromQueryAnnotation(JpaQueryFactory.java:51)
at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$DeclaredQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:137)
at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$CreateIfNotFoundQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:202)
at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$AbstractQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:80)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.<init>(RepositoryFactorySupport.java:357)
at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:192)
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.initAndReturn(RepositoryFactoryBeanSupport.java:239)
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:225)
at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet(JpaRepositoryFactoryBean.java:92)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1625)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1562)
... 240 more
Caused by: java.lang.NullPointerException
at org.hibernate.engine.transaction.internal.jta.JtaStatusHelper.getStatus(JtaStatusHelper.java:76)
at org.hibernate.engine.transaction.internal.jta.JtaStatusHelper.isActive(JtaStatusHelper.java:118)
at org.hibernate.engine.transaction.internal.jta.CMTTransaction.join(CMTTransaction.java:149)
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.joinTransaction(AbstractEntityManagerImpl.java:1602)
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.postInit(AbstractEntityManagerImpl.java:210)
at org.hibernate.jpa.internal.EntityManagerImpl.<init>(EntityManagerImpl.java:91)
at org.hibernate.jpa.internal.EntityManagerFactoryImpl.internalCreateEntityManager(EntityManagerFactoryImpl.java:345)
at org.hibernate.jpa.internal.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:313)
at sun.reflect.GeneratedMethodAccessor48.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.invokeProxyMethod(AbstractEntityManagerFactoryBean.java:388)
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean$ManagedEntityManagerFactoryInvocationHandler.invoke(AbstractEntityManagerFactoryBean.java:541)
at com.sun.proxy.$Proxy76.createEntityManager(Unknown Source)
at org.springframework.data.jpa.repository.query.SimpleJpaQuery.validateQuery(SimpleJpaQuery.java:80)
... 253 more
将造成线以这种方法反映指向调用
Object retVal = method.invoke(this.nativeEntityManagerFactory, args);
我还要补充，我使用Spring数据休息和有RepositoryRestMvcConfiguration类也是如此。
@Configuration
public class RestRepoConfig extends RepositoryRestMvcConfiguration {
@Override
protected void configureRepositoryRestConfiguration(RepositoryRestConfiguration config) {
config.exposeIdsFor(Employee.class, Vehicle.class, Customer.class, VehicleMake.class, VehicleModel.class, Event.class);
}
}
在尝试使用添加的方法验证PagingAndSortingRepository时，正在抛出NPE。
public interface EventRepository extends PagingAndSortingRepository<Event, Long> {
@Query("SELECT e FROM Event AS e WHERE e.vehicle = :vehicle AND e.startTime <= :endTime AND e.endTime >= :startTime")
public Iterable<Event> findByTimeperiod(@Param("vehicle") Vehicle vehicle,
@Param("startTime") long startTime,
@Param("endTime") long endTime);
@Query("SELECT e FROM Event AS e WHERE e.vehicle = :vehicle AND e.eventType = :eventType AND e.startTime = :startTime")
public Event findByCompositeKey(@Param("vehicle") Vehicle vehicle,
@Param("eventType") EventType eventType,
@Param("startTime") long startTime);
}
你能分享所有重现问题所需的代码吗？上面的东西适用于我（一旦我填补了空白）。 – 2015-02-11 17:36:14
@AndyWilkinson我添加了似乎在NPE根部的PagingAndSortingRepository。 – francis 2015-02-11 17:50:40
请提供更多validateQuery方法的代码。我已经有了一个想法，但是......另外相关的Stacktrace将大大帮助我们检查你的假设与现有信息。 – Vogel612 2015-02-12 10:05:42