以下是Spring配置文件:
数据源
以下是用于持久化实体的代码片段。
由于这个错误,之前的提交被回滚了,但其实不应该回滚。
不确定是什么原因导致了这个回滚。
数据源
<bean id="dataSource" class="org.apache.commons.dbcp2.BasicDataSource">
<property name="driverClassName" value="${rwos.dataSource.driverClassName}" />
<property name="url" value="${rwos.dataSource.url}" />
<property name="username" value="${rwos.dataSource.user}" />
<property name="password" value="${rwos.dataSource.password}" />
</bean>
实体管理器配置
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd">
<bean id="persistenceUnitManager" class="org.springframework.data.jpa.support.MergingPersistenceUnitManager">
<property name="defaultDataSource" ref="dataSource"/>
</bean>
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceUnitManager" ref="persistenceUnitManager"/>
<property name="persistenceUnitName" value="com.retailwave.rwos_rwos-data-pojo_jar_4.0.0PU"/>
</bean>
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager" lazy-init="true">
<property name="entityManagerFactory" ref="entityManagerFactory"/>
<property name="dataSource" ref="dataSource" />
</bean>
<tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true"/>
</beans>
以下是用于持久化实体的代码片段。
@Singleton
@Component
public class RWTransactionDao {
@PersistenceContext(type = PersistenceContextType.EXTENDED)
private EntityManager em;
@Override
protected EntityManager getEntityManager() {
return em;
}
@Transactional
public void createOrderTxns(RWRetailTransaction peTxn, RWRetailTransaction fcTxn) {
create(peTxn);
create(fcTxn);
log.debug("Committed Transaction : {} ", peTxn.displayString());
log.debug("Committed Transaction : {} ", fcTxn.displayString());
}
@Transactional
public void create(T entity) {
getEntityManager().persist(entity);
}
}
类:
@Component
@Path("/")
public class RWTransactionREST {
@Inject
private RWTransactionDao rWTransactionDao;
@POST
@Produces(MediaType.APPLICATION_JSON)
@Path("txns/sales")
public RWResponse createPurchaseTransaction(RWRetailTransaction peTxn, RWRetailTransaction fcTxn) {
rWTransactionDao.createOrderTxns(peTxn, fcTxn);
builder.status(RWStatus.OK);
RWResponse response = builder.build();
log.info("Returning.. {}", response);
return response;
}
}
日志信息:
2017-06-14 10:49:51,453 DEBUG [qtp592179046-13] - Committed Transaction : RWRetailTransaction[609, CU_ORD, RTCO-609-17-11193, 2017-06-14 10:49:51.431]
2017-06-14 10:49:51,453 DEBUG [qtp592179046-13] - Committed Transaction : RWRetailTransaction[509, CU_ORD, RTCO-509-17-11193, 2017-06-14 10:49:51.444]
2017-06-14 10:49:51,463 INFO [qtp592179046-13] RWTransactionREST - Returning.. Response[1000:Order has been created successfully, Transaction Id : RTCO-609-17-11193]
在一段时间后,在同一个RWTransactionDao中,其他一些REST实现方法也出现了以下错误:
2017-06-14 10:51:24,199 ERROR [qtp592179046-16] com.retailwave.rwos.compartment.rest.exception.RWCompartmentRestExceptionMapper - Exception caught at Mapper : Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.6.4.v20160829-44060b6): org.eclipse.persistence.exceptions.DatabaseException
Internal Exception: java.sql.SQLTransactionRollbackException: A lock could not be obtained within the time requested
由于这个错误,之前的提交被回滚了,但其实不应该回滚。
不确定是什么原因导致了这个回滚。