org.hibernate.LazyInitializationException: could not initialize proxy - no Session

先在WEB.XML里面配置

<filter>

        <filter-name>openSessionInView</filter-name>
        <filter-class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilter</filter-class>
  </filter>
  <filter-mapping>
          <filter-name>openSessionInView</filter-name>
          <url-pattern>/*</url-pattern>

  </filter-mapping>

具体的类

package com.sxt.ktbank.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

import org.hibernate.SessionFactory;
import org.springframework.context.ApplicationContext;

public class MyOpenSessionInViewFilter implements Filter {
     private ApplicationContext context=null;

    @Override
    public void destroy() {
        // TODO Auto-generated method stub
        
    }

    @Override
    public void doFilter(ServletRequest req, ServletResponse resp,
            FilterChain chain) throws IOException, ServletException {
        SessionFactory factory=(SessionFactory) context.getBean("SessionFactory");
        factory.getCurrentSession().beginTransaction();
        try{
        chain.doFilter(req, resp);
        factory.getCurrentSession().beginTransaction().commit();
        }catch(Exception e){
            factory.getCurrentSession().beginTransaction().rollback();
        }
        factory.getCurrentSession().close();
    }

    @Override
    public void init(FilterConfig config) throws ServletException {
        Object o=config.getServletContext().getAttribute("org.springframework.web.context.WebApplicationContext.ROOT");
        System.out.println(o.getClass().getName());
        this.context=(ApplicationContext) o;
    }
     


}