hibernate中使用clone()方法！求解！

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我在弄security但是延时加载的时候出现问题了！no session or session is close 没有session或者session关闭我先把代码帖出来大家看看！网上有人说要加个clone()这个方法能够解决问题！但是他又没帖怎么用！求高手解答！请不要告诉我OpenSessionInViewFilter坦白的告诉你们这个没有用！也许是security资源查询的顺序为最前，而这个拦截器还没造好吧！
上代码
实体类对象我是用注解实现的！



package com.onionbbs.model;



import java.util.HashSet;

import java.util.Set;



import javax.persistence.CascadeType;

import javax.persistence.Column;

import javax.persistence.Entity;

import javax.persistence.FetchType;

import javax.persistence.GeneratedValue;

import javax.persistence.Id;

import javax.persistence.JoinColumn;

import javax.persistence.JoinTable;

import javax.persistence.ManyToMany;

import javax.persistence.SequenceGenerator;

import javax.persistence.Table;



@Entity

@Table(name="Resources")

public class Resources {

	@Id

	@GeneratedValue

	@SequenceGenerator(name="ResourcesSequence")

	@Column(name="id")

	private int id;

	@Column(name="name",length=30)

	private String name;

	@Column(name="url",length=255)

	private String url;

	@Column(name="Enabled")

	private int Enabled;

	@Column(name="isSystem")

	private int isSystem;

	

	@JoinTable(name="role_resource",inverseJoinColumns=@JoinColumn(name="resources_id"),joinColumns=@JoinColumn(name="role_id"))

	@ManyToMany(cascade=CascadeType.REFRESH,fetch = FetchType.EAGER)

	private Set<Role> role=new HashSet<Role>();

	

	public Set<Role> getRole() {

		return role;

	}

	public void setRole(Set<Role> role) {

		this.role = role;

	}

	public int getId() {

		return id;

	}

	public void setId(int id) {

		this.id = id;

	}

	public String getName() {

		return name;

	}

	public void setName(String name) {

		this.name = name;

	}

	public String getUrl() {

		return url;

	}

	public void setUrl(String url) {

		this.url = url;

	}

	public int getEnabled() {

		return Enabled;

	}

	public void setEnabled(int enabled) {

		Enabled = enabled;

	}

	public int getIsSystem() {

		return isSystem;

	}

	public void setIsSystem(int isSystem) {

		this.isSystem = isSystem;

	}

	

    public Object clone() throws CloneNotSupportedException {   

	     return super.clone();   

	} 

}

数据访问层



package com.OnionEntertainment.Security.Dao;



import java.util.List;



import org.springframework.orm.hibernate3.HibernateTemplate;



import com.onionbbs.model.Resources;



public class SecurityResourceDaoImp  implements SecurityResourceDao{

	private HibernateTemplate hibernateTemplate;

	

	public void setHibernateTemplate(HibernateTemplate hibernateTemplate) {

		this.hibernateTemplate = hibernateTemplate;

	}



	@SuppressWarnings("unchecked")

	public List<Resources> getAllResources() {

		

		return this.hibernateTemplate.find(" from "+Resources.class.getName());

		

	}



}

业务层代码，会不会是我用的是注解的事务引起的呢？



package com.OnionEntertainment.Security.Service;



import java.util.List;



import org.springframework.transaction.annotation.Transactional;



import com.OnionEntertainment.Security.Dao.SecurityResourceDaoImp;

import com.onionbbs.model.Resources;

@Transactional

public class SecurityResourceServiceImp implements SecurityResourceService{

	private SecurityResourceDaoImp securityResourcesDao;

	



	public void setSecurityResourcesDao(SecurityResourceDaoImp securityResourcesDao) {

		this.securityResourcesDao = securityResourcesDao;

	}



	public List<Resources> getAllResources() {

		

		return securityResourcesDao.getAllResources();

	}





}

最后是在这里延时加载数据的这个是security的加载资源的一个类，在服务一启动的时候就开始加载数据库中的资源对象。



package com.onionbbs.security;

import java.util.ArrayList;

import java.util.Collection;

import java.util.HashMap;

import java.util.Iterator;

import java.util.List;

import java.util.Map;

import java.util.Set;



import org.springframework.security.access.ConfigAttribute;

import org.springframework.security.access.SecurityConfig;

import org.springframework.security.web.FilterInvocation;

import org.springframework.security.web.access.intercept.FilterInvocationSecurityMetadataSource;

import org.springframework.security.web.util.AntUrlPathMatcher;

import org.springframework.security.web.util.UrlMatcher;



import com.OnionEntertainment.Security.Service.SecurityResourceServiceImp;

import com.onionbbs.model.Resources;

import com.onionbbs.model.Role;





public class InvocationSecurityMetadataSource

        implements FilterInvocationSecurityMetadataSource {



    private UrlMatcher urlMatcher = new AntUrlPathMatcher();;

    private static Map<String, Collection<ConfigAttribute>> resourceMap = null;





    private SecurityResourceServiceImp securityResourceService;

    

    public void setSecurityResourceService(

			SecurityResourceServiceImp securityResourceService) {

		this.securityResourceService = securityResourceService;

	}





 

    

    

	public void loadResourceDefine() {

		

        resourceMap = new HashMap<String, Collection<ConfigAttribute>>();

        	

        for(Resources item:securityResourceService.getAllResources()){

        

          	resourceMap.put(item.getUrl(), listRoleToCollection(item.getRole()));



        //也就是在这个地方进行加载资源所对应的权限的item.getRole()的

        }

    }