我希望我的讀取方法不要使用事務,因爲這根本就不需要,我只用@Transactional標記我的創建/更新方法。但我該怎麼做?我有一個非常基本的配置春天等...Spring&Hibernate:非事務性服務方法
SessionFactory注入我的DAO,並在每個方法我呼籲sessionFactory。 getCurrentSession()。doQueryStuff();
然而這會導致這個錯誤:
org.hibernate.HibernateException: No Hibernate Session bound to thread, and configuration does not allow creation of non-transactional one here
如果你需要我的Spring配置:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:oxm="http://www.springframework.org/schema/oxm"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
http://www.springframework.org/schema/oxm
http://www.springframework.org/schema/oxm/spring-oxm-3.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/util
http://www.springframework.org/schema/util/spring-util-3.0.xsd">
<context:annotation-config />
<context:component-scan base-package="be.howest.kidscalcula" />
<mvc:annotation-driven />
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix">
<value>/WEB-INF/views/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
<bean id="myDataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost/kidscalcula" />
<property name="username" value="root" />
<property name="password" value="" />
</bean>
<bean class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"
id="sessionFactory">
<property name="dataSource" ref="myDataSource" />
<property name="mappingResources">
<list>
<value>be/howest/kidscalcula/model/Foto.hbm.xml</value>
<value>be/howest/kidscalcula/model/Kindleerplanonderdeel.hbm.xml
</value>
<value>be/howest/kidscalcula/model/Klas.hbm.xml</value>
<value>be/howest/kidscalcula/model/Leerkracht.hbm.xml</value>
<value>be/howest/kidscalcula/model/Leerling.hbm.xml</value>
<value>be/howest/kidscalcula/model/Leerplan.hbm.xml</value>
<value>be/howest/kidscalcula/model/LeerplanOefenreeks.hbm.xml
</value>
<value>be/howest/kidscalcula/model/Leerplanonderdeel.hbm.xml</value>
<value>be/howest/kidscalcula/model/Niveau.hbm.xml</value>
<value>be/howest/kidscalcula/model/Oefenreeks.hbm.xml</value>
<value>be/howest/kidscalcula/model/Overgangsregel.hbm.xml</value>
<value>be/howest/kidscalcula/model/Rapport.hbm.xml</value>
<value>be/howest/kidscalcula/model/RapportLeerplanonderdeel.hbm.xml
</value>
<value>be/howest/kidscalcula/model/Schooljaar.hbm.xml</value>
<value>be/howest/kidscalcula/model/Subonderdeel.hbm.xml</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.connection.pool_size">3</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.format_sql">true</prop>
<prop key="hibernate.use_sql_comments">true</prop>
<prop key="hibernate.cache.use_second_level_cache">false</prop>
</props>
</property>
</bean>
<!-- Configure the multipart resolver -->
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<!-- one of the properties available; the maximum file size in bytes -->
<property name="maxUploadSize" value="500000" />
</bean>
<!--
Transaction manager for a single Hibernate SessionFactory (alternative
to JTA)
-->
<bean id="transactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory">
<ref bean="sessionFactory" />
</property>
</bean>
<tx:annotation-driven />
這個錯誤有什麼用事實傳播是標準要求?
我知道這存在,但做一個數據讀取沒有事務和一個事務,但在readOnly = true之間的性能差異?我想避免在只讀方法中使用@Transactional,因爲首先不需要事務。 – toomuchcs 2010-12-03 14:02:20