hibernate的saveorupdate失效
saveorupdate（）调用时候 如果ID为空会实现save方法来保存
但是当我的ID不为空时候  为什么就是不调用更新语句来更新 郁闷了很久 找不到原因
帮忙分析下

我的pojo一些代码

		// Property accessors

		@Id

		@GeneratedValue(generator = "paymentableGenerator")    

		@GenericGenerator(name = "paymentableGenerator", strategy = "identity") 

		public Integer getId() {

			return this.id;

		}

	

		public void setId(Integer id) {

			this.id = id;

		}

		

		@OneToMany(mappedBy="user",fetch=FetchType.EAGER)

		public Set<UserPermission> getUserPermissions() {

			return userPermissions;

		}

	

		public void setUserPermissions(Set<UserPermission> userPermissions) {

			this.userPermissions = userPermissions;

		}

	

		@OneToMany(mappedBy="user",fetch=FetchType.EAGER)

		public Set<UserRole> getUserRoles() {

			return this.userRoles;

		}

	

		public void setUserRoles(Set<UserRole> userRoles) {

			this.userRoles = userRoles;

		}

 我的web.xml 和事物的一些配置

<filter>

		<filter-name>hibernateFilter</filter-name>

		<filter-class>

			org.springframework.orm.hibernate3.support.OpenSessionInViewFilter

		</filter-class> 

		<init-param>  

           <param-name>flushMode</param-name>  

           <param-value>AUTO</param-value>  

       </init-param> 

       <init-param>  

           <param-name>singleSession</param-name>  

           <param-value>true</param-value>  

       </init-param>  

   </filter>  

   

	 <filter-mapping>

		<filter-name>hibernateFilter</filter-name>

		<url-pattern>*.action</url-pattern>

	</filter-mapping>



	<filter-mapping>

		<filter-name>hibernateFilter</filter-name>

		<url-pattern>/j_acegi_security_check</url-pattern>

	</filter-mapping>



	<filter-mapping>

		<filter-name>hibernateFilter</filter-name>

		<url-pattern>*.jsp</url-pattern>

	</filter-mapping> 	





<!--applicationContext的配置-->





 <bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">    

	<property name="sessionFactory">

	<ref local="sessionFactory"/>

	</property>    

   </bean> 

 

 <bean id="baseTransaction" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean" 

           abstract="true"> 

           

         <property name="transactionManager"&nbs