标签:jpa hibernate weblogic spring java
我正在使用JPA在Spring中实现一个应用程序,并将其部署在weblogic服务器中.我想知道如何处理交易.对于数据库配置,我配置了persistence.xml,在其中将事务类型声明为JTA.在我的持久性逻辑中,在更新某些内容时,我正在使用以下逻辑:
entityManager.getTransaction().commit();
但这会引发异常.如果我不提交,则数据库表中的数据不会更新.
即使我尝试在方法级别声明@Transactional也不起作用.
任何机构都可以告诉我如何处理交易,以及我是否正确使用了交易.
这是我的文件.
DAO类:
@Override
@Transactional
public void updateBpm(User user) {
EntityManager entityManager=null;
try{
entityManager=entityManagerFactory.createEntityManager();
String query="update com_tt_bpm_batch set status = 'FAILED' where seqNo="+user.getSeqNo();
entityManager.createNativeQuery(query);
System.out.println("table updated Successfully..");
}
catch(Exception e){
logger.error(e.getStackTrace());
}
}
这是我的spring配置文件:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:batch="http://www.springframework.org/schema/batch"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:task="http://www.springframework.org/schema/task" xmlns:util="http://www.springframework.org/schema/util"
xmlns:jdbc="http://www.springframework.org/schema/jdbc" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/batch
http://www.springframework.org/schema/batch/spring-batch-2.2.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/task
http://www.springframework.org/schema/task/spring-task-3.2.xsd
http://www.springframework.org/schema/util
http://www.springframework.org/schema/util/spring-util-3.2.xsd
http://www.springframework.org/schema/jdbc
http://www.springframework.org/schema/jdbc/spring-jdbc-3.2.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
">
<tx:annotation-driven />
<context:annotation-config/>
<mvc:annotation-driven/>
<context:component-scan base-package="com.tcs" />
<bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceXmlLocation" value="/WEB-INF/META-INF/persistence.xml" />
<property name="persistenceUnitName" value="Mypersist" />
<!-- <property name="dataSource" ref="dataSource" /> -->
<property name="jpaVendorAdapter" ref="jpaVendorAdapter" />
<property name="jpaDialect" ref="jpaDialect" />
<property name="jpaProperties">
<props>
<prop key="hibernate.transaction.manager_lookup_class">org.hibernate.transaction.WeblogicTransactionManagerLookup
</prop>
</props>
</property>
</bean>
<bean id="baseTransactionProxy" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean"
abstract="true">
<property name="transactionManager" ref="transactionManager"/>
<property name="transactionAttributes">
<props>
<prop key="updateBpm">PROPAGATION_REQUIRED</prop>
<prop key="getforBpm">PROPAGATION_REQUIRED</prop>
</props>
</property>
</bean>
<bean id="jpaVendorAdapter" class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<!-- <property name="database" value="oracle" /> -->
<property name="databasePlatform" value="org.hibernate.dialect.Oracle10gDialect" />
</bean>
<bean id="jpaDialect" class="org.springframework.orm.jpa.vendor.HibernateJpaDialect" />
<bean id="transactionManager"
class="org.springframework.transaction.jta.WebLogicJtaTransactionManager">
<property name="transactionManagerName"
value="javax.transaction.TransactionManager"/>
</bean>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/pages/" />
<property name="suffix" value=".jsp"/>
</bean>
</beans>
这是我的persistence.xml
<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"
version="1.0">
<persistence-unit name="Mypersist" transaction-type="JTA">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<jta-data-source>MCDataSource</jta-data-source>
</persistence-unit>
</persistence>
解决方法:
您正在创建查询:
entityManager.createNativeQuery(query);
但是您没有执行它:http://docs.oracle.com/javaee/6/api/javax/persistence/Query.html#executeUpdate()
标签:jpa,hibernate,weblogic,spring,java 来源: https://codeday.me/bug/20191118/2030303.html
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