No bean named 'entityManagerFactory' is defined 异常怎么解决

2010-05-20 11:25:42 2.2k 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

当KCF遇见卡尔曼滤波：视觉跟随算法的动态优化实战本文探讨了KCF算法与卡尔曼滤波在视觉跟随算法中的动态优化实践，通过深度融合策略提升目标跟踪的鲁棒性和实时性。特别针对机器人应用场景，详细解析了在Jetson等嵌入式平台上的优化技巧，包括计算图优化、内存访问优化和多线程流水线设计，实现了30FPS@1080p的稳定跟踪性能。阅读详情

我用spring 2.5+jpa+struts。我要用spring来管理jpa的entityManger便于管理延时加载。
在没加spring管理延时加载的过滤器一切都正常使用，但是加上就报错
org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'entityManagerFactory' is defined
org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:387)
org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition(AbstractBeanFactory.java:971)
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:246)
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:168)
org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:884)
org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter.lookupEntityManagerFactory(OpenEntityManagerInViewFilter.java:151)
org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter.lookupEntityManagerFactory(OpenEntityManagerInViewFilter.java:134)
org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter.doFilterInternal(OpenEntityManagerInViewFilter.java:93)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

我在web.xml这样配置
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring.xml</param-value>
</context-param>

<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<filter>
<filter-name>Spring OpenEntityManagerInViewFilter</filter-name>
<filter-class>org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>Spring OpenEntityManagerInViewFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

spring.xml是这样
<bean id="sessionFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property name="persistenceXmlLocation" value="classpath:META-INF/persistence.xml"/>
<property name="loadTimeWeaver">
<bean class="org.springframework.instrument.classloading.InstrumentationLoadTimeWeaver"></bean>
</property>
</bean>

<bean id="txManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="sessionFactory"></property>
</bean>
<tx:annotation-driven transaction-manager="txManager"/>

...全文