今天整合spring和hibernate中報了一個意想不到的錯誤:java
Exception in thread "main" org.hibernate.HibernateException: save is not valid without active transactionmysql
at org.hibernate.context.ThreadLocalSessionContext$TransactionProtectionWrapper.invoke(ThreadLocalSessionContext.java:341)spring
at $Proxy16.save(Unknown Source)sql
配置文件以下:apache
<?xml version="1.0" encoding="UTF-8"?> app
<beans xmlns="http://www.springframework.org/schema/beans" dom
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" this
xmlns:context="http://www.springframework.org/schema/context" url
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-2.5.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-2.5.xsd" >
<!-- Creates the registry of flow definitions for this application -->
<!-- 要使用註解必須添加此項 -->
<context:annotation-config />
<!-- 自動檢測組件
-->
<context:component-scan base-package="com.spring.service.impl,com.spring.dao,com.spring.aop" />
<!-- 配置數據源 -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:3306/test" />
<property name="username" value="root" />
<property name="password" value="root" />
</bean>
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<!-- 掃描實體包 -->
<property name="packagesToScan">
<value>com.spring.domain</value>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.show_sql">true</prop>
<!--
加上下面這句話會出錯
Exception in thread "main" org.hibernate.HibernateException: save is not valid without active transaction
-->
<prop key="hibernate.current_session_context_class">thread</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
</props>
</property>
</bean>
<!-- 設定transactionManager -->
<bean id="txManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<!--啓動spring事務註解功能-->
<tx:annotation-driven transaction-manager="txManager"/>
</beans>
正如配置文件中紅色文字所示,在單獨使用hibernate時,老是會加上這項配置,但spring與hibernate結合時,千萬不能加上這句 話,我猜想出錯緣由是事務管理器中的session和當前拿到的session不是同一個session,事務管理器中拿到的session開啓了事務, 但當前獲得的session並無開啓事務,致使出錯