在struts2中延长session的生命周期

来源：互联网发布：如何清空mysql数据库编辑：程序博客网时间：2024/04/29 16:03

创建一个OpenSessionInViewFilter的类其实现Filter接口
`public class OpenSessionInViewFilter implements Filter{
public void destroy() {
// TODO Auto-generated method stub
}
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain fc) throws IOException, ServletException {
```
Session s=HibernateUtil.getSession();Transaction tx=s.beginTransaction();fc.doFilter(request, response);tx.commit();
```
}
public void init(FilterConfig arg0) throws ServletException {
// TODO Auto-generated method stub
}

3.在web.xml中配置过滤器

<filter>  <filter-name>opensession</filter-name>  <filter-class>cn.util.OpenSessionInViewFilter</filter-class>  </filter>  <filter-mapping>  <filter-name>opensession</filter-name>  <url-pattern>/*</url-pattern>  </filter-mapping>

4.在操作数据库时则不需要不能开事物，否则会报异常。

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