登录后访问设置请教

mkworld 2012-07-14 10:50:44

<filter-mapping>
<filter-name>LoginFilter</filter-name>
<url-pattern>/user/member/*</url-pattern>
<dispatcher>REQUEST</dispatcher>
</filter-mapping>
这个设置了，但是过滤器内或者filters内如何写



package filters;



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 javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import javax.servlet.http.HttpSession;

public class LoginFilter implements Filter{



    public void init(FilterConfig conf) throws ServletException{ 

       

        }

    }

    

    public void doFilter(ServletRequest req,ServletResponse res,

    FilterChain chain) throws ServletException,IOException{

        HttpServletRequest hReq = (HttpServletRequest)req;

        HttpServletResponse   hres=(HttpServletResponse)res; 

        HttpSession s = hReq.getSession(true);

        Object ac = (Object) s.getAttribute("account");

        

        if(ac==null){

            ((HttpServletResponse)res).sendRedirect("/user/loginForm");

            ／／是在这里加吗？改如何写请教下

        }

        chain.doFilter(req,res);

        

        

        }

    public void destroy(){ 

     // TODO Auto-generated method stub



    }



  

    }