bitronix-无法找到当前的JTA事务

嗨,我有一个使用spring和hibernate的Java Web应用程序.

我有一个名为Role的模型类.对于所有模型类,都有常见的GenericDao.java

public interface GenericDao{
    public void insert(T transientInstance);      
    public T findById(Class clazz, Serializable id); 
}

GenericHibernateDao.java

@Repository
public class GenericHibernateDao
implements GenericDao{

    @Resource
    protected SessionFactory sessionFactory;

    @Override
    public void insert(T transientInstance) {
        sessionFactory.getCurrentSession().persist(transientInstance);
    }
        @SuppressWarnings("unchecked")
    @Override
    public T findById(Class clazz, Serializable id) {
        return (T) sessionFactory.getCurrentSession().get(clazz, id);
        }
}

RoleService.java

public interface RoleService {
    public void insert(Role role);
    public Role findById(Integer id);
}

并且有它的实现RoleServiceImpl.java

@Service
public class RoleServiceImpl implements RoleService {

    @Autowired
    private GenericDao roleDao;

    @Override
    public void insert(Role role) {
        roleDao.insert(role);
    }

    @Override
    public Role findById(Integer id) {
        return roleDao.findById(Role.class, id);
    }
}

我有一个控制器调用这个findbyid methid并传递一个值 - RegisterController.java

@Controller
public class UserRegisterController {

    @Autowired
    public RoleService roleService;

    @RequestMapping(value = "/register", method = RequestMethod.POST, consumes= MediaType.APPLICATION_JSON_VALUE)
    @ResponseBody
    public void registerUser(@RequestBody User user)
    {
        Role role=new Role();
        role=roleService.findById(1);
        System.out.println("Saved");
    }
}

最后我的spring applicationContext.xml是

        
        
        
        
        
        
        
        
        
            
                ${jdbc.url}
                ${jdbc.username}
                ${jdbc.password}
            
        
    
    

    
        
        
    
    

    
        
        
        
        
            
                ${hibernate.dialect}
                true 'Y', false 'N'
            
        
    

我在tomcat中运行此应用程序.它给出以下错误.

SEVERE: Servlet.service() for servlet [myappdemo] in context with path [/myappdemo] threw exception [Request processing failed; nested exception is org.hibernate.HibernateException: Unable to locate current JTA transaction] with root cause
org.hibernate.HibernateException: Unable to locate current JTA transaction
    at org.hibernate.context.internal.JTASessionContext.currentSession(JTASessionContext.java:88)
    at org.springframework.orm.hibernate4.SpringSessionContext.currentSession(SpringSessionContext.java:90)
    at org.hibernate.internal.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.java:980)
    at com.myapp.myappdemo.dao.hibernate.GenericHibernateDao.findById(GenericHibernateDao.java:46)
    at com.myapp.myappdemo.dao.hibernate.GenericHibernateDao.findById(GenericHibernateDao.java:15)
    at com.myapp.myappdemo.service.impl.RoleServiceImpl.findById(RoleServiceImpl.java:38)
    at com.myapp.myappdemo.web.UserRegisterController.registerUser(UserRegisterController.java:36)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:920)
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:827)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:801)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:744)

它发生在我打电话给 roleService.findById(1);

为什么会这样？我该如何解决？

我使用的是spring 3.2.1.RELEASE,Hibernate 4.2.0.Final,btm 2.1.3