Hibernate4整合Spring3的时候 获取session报空指针异常

[Irsin]

Caused by: org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [com.mfl.Controller.DAOImpl.tUserDAOImpl]: Constructor threw exception; nested exception is java.lang.NullPointerException

at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:162)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:76)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:990)
... 64 more
Caused by: java.lang.NullPointerException

at com.mfl.Controller.DAOImpl.tUserDAOImpl.<init>(tUserDAOImpl.java:32)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:147)
... 66 more
2016-8-1 11:07:41 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet [jsp] in context with path [/ERP] threw exception [java.lang.NullPointerException] with root cause
java.lang.NullPointerException
这是部分错误信息

com.mfl.Controller.DAOImpl.tUserDAOImpl
@Repository
public class tUserDAOImpl implements tUserDAO {
private SessionFactory sessionFactory;public SessionFactory getSessionFactory() {
return sessionFactory;
}

public void setSessionFactory(SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
}

Session session = sessionFactory.openSession();

@Override
public void Add(tUser u) {
session.save(u);
System.out.println("tUser的add方法...实现类");

}

@Override
public List<tUser> Qeury(String name) {
//执行了未检查的转换时的警告
@SuppressWarnings("unchecked")
List<tUser> list = (List<tUser>) session.createQuery("from tUser");
Iterator<tUser> it = list.iterator();
while (it.hasNext()) {
tUser u = (tUser) it.next();
System.out.println(u);
}

return list;
}}


web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" 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_3_0.xsd">
<!-- 下面的listener，是spring提供的，它会在创建时自动查找WEB-INF下的applicationContext.xml文件 ,从而创建spring容器-->

<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<!-- 查找spring配置文件 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/applicationContext*.xml
</param-value>
</context-param>

<filter>
<filter-name>openSessionInVieFilter</filter-name>
<filter-class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilter</filter-class>

<init-param>
<param-name>singleSession</param-name>
<param-value>true</param-value>
</init-param>

<!-- 指定在spring配置的sessionFactory -->
<init-param>
<param-name>sessionFactoryBeanName</param-name>
<param-value>sessionFactory</param-value>
</init-param>

</filter>
<filter-mapping>
<filter-name>openSessionInVieFilter</filter-name>
<servlet-name>/*</servlet-name>
</filter-mapping>



<!-- 下面的配置信息，用来配置说明使用struts过滤器 -->
<filter>
<filter-name>
struts2
</filter-name>

<filter-class>
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
</filter-class>
</filter>

<!--下面的配置表示对于所有请求都交给struts来处理。-->
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>


</web-app>

Spring配置文件

<?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:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.0.xsd"
default-lazy-init="true">

<!-- 此处的bean是告诉spring去哪里找jdbc有关的配置文件 -->
<bean
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<value>WEB-INF/jdbc.properties</value>
</property>
</bean>

<!-- 启用注解注入 -->
<context:annotation-config/>

<!-- 包扫描的方式加载注解类(推荐) -->
<context:component-scan base-package="com.mfl"></context:component-scan>


<!-- 配置数据源 -->

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
</bean>

<!-- 配置sessionFactory -->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource">
<ref bean="dataSource" />
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">
org.hibernate.dialect.OracleDialect
</prop>
<prop key="hibernate.show_sql">true</prop>

</props>
</property>

<property name="mappingLocations">
<list>
<value>classpath:com/mfl/Entities/*.hbm.xml</value>

</list>

</property>
</bean>

<!-- 1、配置一个事务管理器txManager 配置此事务管理器时，需要提供一个已经配置的SessionFactory -->

<bean id="txManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>

<!-- 配置事物管理通知 -->
<tx:advice id="txAdvice" transaction-manager="txManager">
<tx:attributes>
<!-- 事物的传播特性 -->
<tx:method name="add*" propagation="REQUIRED"/>
<tx:method name="*"/>
</tx:attributes>
</tx:advice>
<aop:config>
<aop:pointcut expression="execution(* com.mfl.Service..*.*(..))" id="fooServiceOperation"/>
<aop:advisor advice-ref="tUserService" pointcut-ref="fooServiceOperation"/>
</aop:config>

<!-- 用注解来实现事务管理 -->
<tx:annotation-driven transaction-manager="transactionManager" />



<!-- 配置action -->


<bean id="tUserDAOImpl" class="com.mfl.Controller.DAOImpl.tUserDAOImpl">
<property name="sessionFactory" ref="sessionFactory"></property>

</bean>

<bean id="tUserService" class="com.mfl.Service.tUserService">
<property name="tUserDAOImpl" ref="tUserDAOImpl"></property>

</bean>

<bean id="tUserAction" class="com.mfl.Aciton.tUserAction">
<property name="tUserService" ref="tUserService"> </property>

</bean>

</beans>
.




有没有大神帮忙看看啊谢谢啦啦啦啦
之前看到说hibernate4整合spring3的时候直接用sessionfactory属性就好了 可是现在一直都报session是空指针

[Irsin]

引用 3 楼 qq_35261789 的回复:

//注入会话工程 @Resource public void setSF(SessionFactory sessionFactory){ super.setSessionFactory(sessionFactory); } 你这么又在配置bean又在注解 <bean id="tUserDAOImpl" class="com.mfl.Controller.DAOImpl.tUserDAOImpl"> <property name="sessionFactory" ref="sessionFactory"></property> </bean> @Repository public class tUserDAOImpl implements tUserDAO { 用注解的话就得注入 @Resource public void setSF(SessionFactory sessionFactory){ super.setSessionFactory(sessionFactory); } 不用注解的话 bean里面配置就行 试试不用注解或只用注解 有可能是冲突了

哦哦 我刚学SSH 老大说要用注解 我又不太清楚。。。

[阳光越来越暖]

引用 4 楼 Irsin 的回复:

[quote=引用 3 楼 qq_35261789 的回复:] //注入会话工程 @Resource public void setSF(SessionFactory sessionFactory){ super.setSessionFactory(sessionFactory); } 你这么又在配置bean又在注解 <bean id="tUserDAOImpl" class="com.mfl.Controller.DAOImpl.tUserDAOImpl"> <property name="sessionFactory" ref="sessionFactory"></property> </bean> @Repository public class tUserDAOImpl implements tUserDAO { 用注解的话就得注入 @Resource public void setSF(SessionFactory sessionFactory){ super.setSessionFactory(sessionFactory); } 不用注解的话 bean里面配置就行 试试不用注解或只用注解 有可能是冲突了

哦哦 我刚学SSH 老大说要用注解 我又不太清楚。。。[/quote] 用注解 就不要配置 <bean id="tUserDAOImpl" class="com.mfl.Controller.DAOImpl.tUserDAOImpl"> <property name="sessionFactory" ref="sessionFactory"></property> </bean>

[Irsin]

引用 5 楼 qq_35261789 的回复:

[quote=引用 4 楼 Irsin 的回复:] [quote=引用 3 楼 qq_35261789 的回复:] //注入会话工程 @Resource public void setSF(SessionFactory sessionFactory){ super.setSessionFactory(sessionFactory); } 你这么又在配置bean又在注解 <bean id="tUserDAOImpl" class="com.mfl.Controller.DAOImpl.tUserDAOImpl"> <property name="sessionFactory" ref="sessionFactory"></property> </bean> @Repository public class tUserDAOImpl implements tUserDAO { 用注解的话就得注入 @Resource public void setSF(SessionFactory sessionFactory){ super.setSessionFactory(sessionFactory); } 不用注解的话 bean里面配置就行 试试不用注解或只用注解 有可能是冲突了

哦哦 我刚学SSH 老大说要用注解 我又不太清楚。。。[/quote] 用注解 就不要配置 <bean id="tUserDAOImpl" class="com.mfl.Controller.DAOImpl.tUserDAOImpl"> <property name="sessionFactory" ref="sessionFactory"></property> </bean>[/quote] 我现在的配置文件没有配置这些了 但是还是会报session空指针 我贴出来你看看 在下一条评论

[Irsin]

这是修改后的applicationcontex.xml文件 <?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:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd"> <!-- 此处的bean是告诉spring去哪里找jdbc有关的配置文件 --> <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="locations"> <value>WEB-INF/jdbc.properties</value> </property> </bean> <!-- 启用注解注入 --> <context:annotation-config/> <!-- 使用 annotation 自动注册bean,并检查@Controller, @Service, @Repository注解已被注入 --> <context:component-scan base-package="com.mfl"></context:component-scan> <!-- 配置数据源 --> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"> <property name="driverClassName" value="${jdbc.driverClassName}" /> <property name="url" value="${jdbc.url}" /> <property name="username" value="${jdbc.username}" /> <property name="password" value="${jdbc.password}" /> </bean> <!-- 配置sessionFactory --> <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean"> <property name="dataSource"> <ref bean="dataSource" /> </property> <property name="hibernateProperties"> <props> <prop key="hibernate.dialect"> org.hibernate.dialect.OracleDialect </prop> <prop key="hibernate.show_sql">true</prop> </props> </property> <property name="mappingLocations"> <list> <value>classpath:com/mfl/Entities/*.hbm.xml</value> </list> </property> <!-- 包扫描的方式加载注解类(推荐) --> <property name="packagesToScan"> <list> <value>com.mfl.*</value> </list> </property> </bean> <!-- 1、配置一个事务管理器txManager 配置此事务管理器时，需要提供一个已经配置的SessionFactory --> <bean id="txManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager"> <property name="sessionFactory" ref="sessionFactory" /> </bean> <!-- 配置事物管理通知 --> <tx:advice id="txAdvice" transaction-manager="txManager"> <tx:attributes> <!-- 事物的传播特性 --> <tx:method name="add*" propagation="REQUIRED"/> <tx:method name="*"/> </tx:attributes> </tx:advice> <aop:config> <aop:pointcut expression="execution(* com.mfl.Service..*.*(..))" id="fooServiceOperation"/> <aop:advisor advice-ref="tUserService" pointcut-ref="fooServiceOperation"/> </aop:config> </beans>

[阳光越来越暖]

引用 7 楼 Irsin 的回复:

<value>WEB-INF/jdbc.properties</value> 这个路径我记得一般是<value>/WEB-INF/jdbc.properties</value> 这个加上了嘛 @Resource public void setSF(SessionFactory sessionFactory){ super.setSessionFactory(sessionFactory); } 把完整的出错信息贴出来 启动tomcat的时候你看控制台头没有提示什么没找到

[阳光越来越暖]

@Override public void Add(tUser u) { //获取当前线程session 用 sessionFactory.getCurr...Session(); Session session = sessionFactory.getCurr...Session(); session.save(u); System.out.println("tUser的add方法...实现类"); }

[阳光越来越暖]

这是我的 @Resource(name = "sessionFactory") private SessionFactory sessionFactory; public Session getSession() { return sessionFactory.getCurrentSession(); } public void addEntity(T entity) { getSession().save(entity); } 再不行 就参考一下其他项目吧

[Irsin]

引用 10 楼 qq_35261789 的回复:

这是我的 @Resource(name = "sessionFactory") private SessionFactory sessionFactory; public Session getSession() { return sessionFactory.getCurrentSession(); } public void addEntity(T entity) { getSession().save(entity); } 再不行 就参考一下其他项目吧

完整的错误信息如下 严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'tUserAction': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'tUserService': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'tUserDAO' defined in file [E:\Iysin\soft\apache-tomcat-7.0.11\webapps\ERP\WEB-INF\classes\com\mfl\Controller\DAOImpl\tUserDAOImpl.class]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [com.mfl.Controller.DAOImpl.tUserDAOImpl]: Constructor threw exception; nested exception is java.lang.NullPointerException at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:306) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1106) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:585) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:913) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464) at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:385) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:284) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:111) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4681) at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5184) at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5179) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) at java.util.concurrent.FutureTask.run(FutureTask.java:138) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918) at java.lang.Thread.run(Thread.java:662) Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'tUserService': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'tUserDAO' defined in file [E:\Iysin\soft\apache-tomcat-7.0.11\webapps\ERP\WEB-INF\classes\com\mfl\Controller\DAOImpl\tUserDAOImpl.class]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [com.mfl.Controller.DAOImpl.tUserDAOImpl]: Constructor threw exception; nested exception is java.lang.NullPointerException at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:306) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1106) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.autowireResource(CommonAnnotationBeanPostProcessor.java:442) at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.getResource(CommonAnnotationBeanPostProcessor.java:416) at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor$ResourceElement.getResourceToInject(CommonAnnotationBeanPostProcessor.java:549) at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:150) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87) at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:303) ... 21 more Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'tUserDAO' defined in file [E:\Iysin\soft\apache-tomcat-7.0.11\webapps\ERP\WEB-INF\classes\com\mfl\Controller\DAOImpl\tUserDAOImpl.class]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [com.mfl.Controller.DAOImpl.tUserDAOImpl]: Constructor threw exception; nested exception is java.lang.NullPointerException at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:997) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:943) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:485) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.autowireResource(CommonAnnotationBeanPostProcessor.java:442) at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.getResource(CommonAnnotationBeanPostProcessor.java:416) at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor$ResourceElement.getResourceToInject(CommonAnnotationBeanPostProcessor.java:549) at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:150) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87) at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:303) ... 34 more Caused by: org.s pringframework.beans.BeanInstantiationException: Could not instantiate bean class [com.mfl.Controller.DAOImpl.tUserDAOImpl]: Constructor threw exception; nested exception is java.lang.NullPointerException at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:162) at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:76) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:990) ... 47 more Caused by: java.lang.NullPointerException at com.mfl.Controller.DAOImpl.tUserDAOImpl.<init>(tUserDAOImpl.java:35) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:147) ... 49 more

[Irsin]

引用 9 楼 qq_35261789 的回复:

@Override public void Add(tUser u) { //获取当前线程session 用 sessionFactory.getCurr...Session(); Session session = sessionFactory.getCurr...Session(); session.save(u); System.out.println("tUser的add方法...实现类"); }

我的DAOImpl是这样的 public SessionFactory getSessionFactory() { return sessionFactory; } public void setSessionFactory(SessionFactory sessionFactory) { this.sessionFactory = sessionFactory; } Session session = sessionFactory.openSession(); @Override public void Add(tUser u) { // System.err.println(sessionFactory.openSession()); session.save(u); System.out.println("tUser的add方法...实现类"); }

[阳光越来越暖]

引用 12 楼 Irsin 的回复:

[quote=引用 9 楼 qq_35261789 的回复:] @Override public void Add(tUser u) { //获取当前线程session 用 sessionFactory.getCurr...Session(); Session session = sessionFactory.getCurr...Session(); session.save(u); System.out.println("tUser的add方法...实现类"); }

我的DAOImpl是这样的 public SessionFactory getSessionFactory() { return sessionFactory; } public void setSessionFactory(SessionFactory sessionFactory) { this.sessionFactory = sessionFactory; } Session session = sessionFactory.openSession(); @Override public void Add(tUser u) { // System.err.println(sessionFactory.openSession()); session.save(u); System.out.println("tUser的add方法...实现类"); }[/quote] 改成这个试试 另外你输出一下SessionFactory 看他有没有获取到

[阳光越来越暖]

引用 13 楼 qq_35261789 的回复:

[quote=引用 12 楼 Irsin 的回复:] [quote=引用 9 楼 qq_35261789 的回复:]

改成 @Resource(name = "sessionFactory") private SessionFactory sessionFactory; public Session getSession() { return sessionFactory.getCurrentSession(); } public void addEntity(T entity) { system.out.println(sessionFactory); //如果这个sessionFactory 是空 那就是配置的问题了 也许是jar包没对 getSession().save(entity); }

[Irsin]

有没有大神啊在线等！！！！！

[Irsin]

来个人啊啊啊啊啊

[阳光越来越暖]

//注入会话工程 @Resource public void setSF(SessionFactory sessionFactory){ super.setSessionFactory(sessionFactory); } 你这么又在配置bean又在注解 <bean id="tUserDAOImpl" class="com.mfl.Controller.DAOImpl.tUserDAOImpl"> <property name="sessionFactory" ref="sessionFactory"></property> </bean> @Repository public class tUserDAOImpl implements tUserDAO { 用注解的话就得注入 @Resource public void setSF(SessionFactory sessionFactory){ super.setSessionFactory(sessionFactory); } 不用注解的话 bean里面配置就行 试试不用注解或只用注解 有可能是冲突了