我在spring mvc里面调用EntityManager.persisit()方法的时候抛出异常，但是神奇的是，如果不整合Spring MVC单独在Spring里面运行可以正常调用persist方法：

HTTP ERROR 500

Problem accessing /ssshp/addDept/wwewd. Reason:

    No EntityManager with actual transaction available for current thread - cannot reliably process 'persist' call
Caused by:

javax.persistence.TransactionRequiredException: No EntityManager with actual transaction available for current thread - cannot reliably process 'persist' call
    at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:278)
    at com.sun.proxy.$Proxy49.persist(Unknown Source)
    at cn.ziav.ssshp.facade.SpringFacadeImpl.createDept(SpringFacadeImpl.java:28)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221)
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136)
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:817)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:731)
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:968)
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:859)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:844)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
    at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
    at org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter.doFilterInternal(OpenEntityManagerInViewFilter.java:178)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
    at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
    at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
    at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
    at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
    at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
    at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
    at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
    at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
    at org.mortbay.jetty.Server.handle(Server.java:326)
    at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
    at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
    at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
    at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
    at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
    at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
    at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)

代码如下：

@RestController
public class SpringFacadeImpl implements SpringFacade {
    @PersistenceContext
    private EntityManager entityManager;

    @Override
    @RequestMapping("/addDept/{dept}")
    @Transactional
    public void createDept(@PathVariable String dept) {
        Department.valueOf(dept);
        entityManager.persist(dept);
    }
}    

dispatcher-servlet.xml

web.xml

    
        contextConfigLocation
        classpath*:applicationContext.xml
    
    
        dispatcher
        org.springframework.web.servlet.DispatcherServlet
        1
    
    
        dispatcher
        /
    
    
        org.springframework.web.context.ContextLoaderListener
    
    
    
        httpPutFormFilter
        org.springframework.web.filter.HttpPutFormContentFilter
    
    
        httpPutFormFilter
        dispatcherServlet
    
    
    
    
        CharacterEncodingFilter
        org.springframework.web.filter.CharacterEncodingFilter
        
            encoding
            UTF-8
        
    

    
        CharacterEncodingFilter
        /*
    

    
    
        HiddenHttpMethodFilter
        org.springframework.web.filter.HiddenHttpMethodFilter
    

    
        HiddenHttpMethodFilter
        /*
    

    
    
        OpenEntityManagerInViewFilter
        org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter
    

    
        OpenEntityManagerInViewFilter
        /*
    
    
    index.html

applicationContext.xml

    
    
    
    

    
    
        
        
            
        
        
        
            
                
                org.hibernate.cache.ehcache.EhCacheRegionFactory
                
                true
                true
                
                
                
                
                org.hibernate.dialect.MySQL5InnoDBDialect
                true
                true
                update
            
        
    

    
    
        
    

    
    

折腾了好几天了，无解，求各位大大告知哪里出问题了？