Hibernate: createQuery 没有主动交易无效

我的项目有一些问题 Spring + Hibernate. 当我尝试获取数据时，我有：

HTTP 状态500请求失败; 嵌套异常 org.hibernate.HibernateException: createQuery 不可接受，没有活动交易
这是我的代码 xml config:

<beans xmlns="[url=http://www.springframework.org/schema/beans"]http://www.springframework.org/schema/beans"[/url] xmlns:tx="[url=http://www.springframework.org/schema/tx"]http://www.springframework.org/schema/tx"[/url] xmlns:xsi="[url=http://www.w3.org/2001/XMLSchema-instance"]http://www.w3.org/2001/XMLSchema-instance"[/url] xsi:schemalocation="[url=http://www.springframework.org/schema/beans]http://www.springframework.org/schema/beans[/url]

[url=http://www.springframework.org/schema/beans/spring-beans-3.0.xsd]http://www.springframework.org ... 0.xsd[/url]

[url=http://www.springframework.org/schema/tx]http://www.springframework.org/schema/tx[/url]

[url=http://www.springframework.org/schema/tx/spring-tx.xsd">]http://www.springframework.org ... gt%3B[/url]

<bean class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close" id="dataSource">

<property name="driverClassName" value="com.mysql.jdbc.Driver"></property>

<property name="url" value="jdbc:mysql://localhost:3306/users"></property>

<property name="username" value="root"></property>

<property name="password" value="12345"></property>

</bean>

<bean class="org.springframework.orm.hibernate4.LocalSessionFactoryBean" id="SessionFactory">

<property name="dataSource" ref="dataSource"></property>

<property name="annotatedClasses">

<list>

<value>com.springapp.model.User</value>

<value>com.springapp.model.UserRole</value>

<value>com.springapp.model.Project</value>

</list>

</property>

<property name="hibernateProperties">

<props>

<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>

<prop key="hibernate.show_sql">false</prop>

<prop key="hibernate.current_session_context_class">thread</prop>

</props>

</property>

</bean>

<tx:annotation-driven transaction-manager="transactionManager"></tx:annotation-driven>

<bean class="org.springframework.orm.hibernate4.HibernateTransactionManager" id="transactionManager">

<property name="sessionFactory" ref="SessionFactory"></property>

</bean>

一种方法 DAO

@Override

public List<user> showAllUsers//{

 List<user> users = new ArrayList<user>//;

 Session session = this.sessionFactory.getCurrentSession//;

 users = session.createQuery/"from User"/.list//;

 return users;

}

所有服务都标记为事务性。 我删除时

<prop key="hibernate.current_session_context_class">thread</prop>

我有 Hibernate 错误：找不到当前流的会话。 我怎么解决这个问题？

UPDATED #2

全道

@Autowired

private SessionFactory sessionFactory;



@SuppressWarnings/"unchecked"/

public User findByUserName/String username/ {



 List<user> users = new ArrayList<user>//;



 Session session = this.sessionFactory.getCurrentSession//;

 session.beginTransaction//;

 users = session

 .createQuery/"from User where username=?"/

 .setParameter/0, username/.list//;

 session.getTransaction//.commit//;

 session.close//;

 if /users.size// &gt; 0/ {

 return users.get/0/;

 } else {

 return null;

 }

}



@Override

public void addUser/User user/{

 Session session = this.sessionFactory.getCurrentSession//;

 session.save/user/;

}



@Override

public void deleteUser/User user/{

 Session session = this.sessionFactory.getCurrentSession//;

 System.out.println/user.getUsername///;

 session.delete/user/;

}

@Override

public void verifyUser/User user/{

 Session session = this.sessionFactory.getCurrentSession//;

 session.update/user/;

}

@Override

public List<user> showAllUsers//{

 List<user> users = new ArrayList<user>//;

 Session session = this.sessionFactory.getCurrentSession//;

 session.beginTransaction//;

 users = session.createQuery/"from User"/.list//;

 session.getTransaction//.commit//;

 session.close//;

 return users;

}

我现在有 "嵌套异常 org.hibernate.SessionException: 会议已经关闭"
- 怎么了？

更新

这就是我称之为这些方法的方式：

@RequestMapping/"/admin/updateUser"/

public String updateUser/ModelMap model,@ModelAttribute/"userId"/ String username/

{

 User user = this.userService.findByUserName/username/;

 if/user.isEnabled/// user.setEnabled/false/;

 else user.setEnabled/true/;

 this.userService.updateUser/user/;

 return "redirect:/admin";

}

 @RequestMapping/"/admin"/

public String adminPanel/ModelMap model/

{

 List<user> users = this.userService.showAllUsers//;

 model.addAttribute/"users",users/;

 return "adminpanel";

}

</user></user></user></user></user></user></user></user></user></beans>