17:06:21,968 DEBUG http-80-2 support.DefaultListableBeanFactory:242 - Returning cached instance of singleton bean 'sessionFactory'
17:06:32,421 DEBUG http-80-2 support.DefaultListableBeanFactory:242 - Returning cached instance of singleton bean 'sessionFactory'
sessionFactory is null
17:06:32,453 DEBUG http-80-2 support.DefaultListableBeanFactory:242 - Returning cached instance of singleton bean 'sessionFactory'
发现sessionFactory 不自动注入.不知道是什么原因。
beans.xml
<?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:context="http://www.springframework.org/schema/context"
        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/aop http://www.springframework.org/schema/aop/spring-aop-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/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd"
default-autowire="no">
   <context:annotation-config/>
   <context:component-scan base-package="bbs.dao"/>
   <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 name="annotatedClasses">
       <list>
         <value>bbs.entity.Plate</value>
       </list>
     </property> -->
     <property name="packagesToScan">
         <list>
             <value>bbs.entity</value>
         </list>
     </property>
     <property name="hibernateProperties">
       <props>
           <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
           <prop key="hibernate.show_sql">true</prop>
       </props>
     </property>
   </bean>
  
   <bean id="txManager"
         class="org.springframework.orm.hibernate3.HibernateTransactionManager">
         <property name="sessionFactory" ref="sessionFactory" />
     </bean>
     <aop:config>
         <aop:pointcut id="bussinessService"
             expression="execution(public * bbs.dao.*.*(..))" />
         <aop:advisor pointcut-ref="bussinessService"
             advice-ref="txAdvice" />
     </aop:config>
     <tx:advice id="txAdvice" transaction-manager="txManager">
         <tx:attributes>
             <tx:method name="add*" propagation="REQUIRED"/>
         </tx:attributes>
     </tx:advice>
    
     <tx:annotation-driven transaction-manager="txManager"/>
</beans>
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
     xmlns="http://java.sun.com/xml/ns/javaee"


     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
    http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
   <welcome-file-list>
     <welcome-file>index.jsp</welcome-file>
   </welcome-file-list>
     <!-- Bootstrap the root application context as usual using ContextLoaderListener -->
     <context-param>
       <param-name>contextConfigLocation</param-name>
       <param-value>classpath:beans.xml</param-value>
   </context-param>
   <listener>
     <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
   </listener>
  
   <filter>
     <filter-name>encodingFilter</filter-name>
     <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
     <init-param>
       <param-name>encoding</param-name>
       <param-value>GBK</param-value>
       </init-param>
   </filter>
   <filter-mapping>
     <filter-name>encodingFilter</filter-name>
     <url-pattern>/*</url-pattern>
   </filter-mapping>
   <filter>
     <filter-name>openSessionInView</filter-name>
     <filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>
     <init-param>
         <param-name>sessionFactoryBeanName</param-name>
         <param-value>sessionFactory</param-value>
     </init-param>
     </filter>
    
     <filter-mapping>
         <filter-name>openSessionInView</filter-name>
         <url-pattern>/*</url-pattern>
     </filter-mapping>
   <filter>
     <filter-name>struts2</filter-name>
     <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>


   </filter>
   <filter-mapping>
     <filter-name>struts2</filter-name>
     <url-pattern>/*</url-pattern>
   </filter-mapping>
</web-app>
调用sessionFactory 的类
package bbs.dao;
import javax.annotation.Resource;
import javax.sql.DataSource;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.stereotype.Component;
import bbs.entity.Plate;
@Component(value="plateDao")
public class PlateDao {
     SessionFactory sessionFactory;
     public SessionFactory getSessionFactory() {
         return sessionFactory;
     }
     @Resource(name="sessionFactory")
     public void setSessionFactory(SessionFactory sessionFactory) {
         this.sessionFactory = sessionFactory;
     }
     public void addPlate(Plate plate){
         if(sessionFactory==null){
             System.out.println("sessionFactory is null");
             return;
             //sessionFactory = (SessionFactory) new ClassPathXmlApplicationContext("classpath:beans.xml").getBean("sessionFactory");
             //sessionFactory = new Configuration().configure().buildSessionFactory();
         }
         Session session = sessionFactory.openSession();
         session.getTransaction().begin();
         session.save(plate);
         session.getTransaction().commit();
     }
}


default-autowire="no"
这句的问题吧。你设置的默认不自动装配