pagefilter.java

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package com.wang.servlet.filter;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import com.wang.bean.*;
public class PageFilter
    extends HttpServlet implements Filter
{
    private FilterConfig filterConfig;
    //Handle the passed-in FilterConfig
    public void init(FilterConfig filterConfig)
        throws ServletException
    {
        this.filterConfig = filterConfig;
    }

    //Process the request/response pair
    public void doFilter(ServletRequest request, ServletResponse response,
                         FilterChain filterChain)
    {
//        HttpServletRequest request1=(HttpServletRequest)request;
//        HttpServletResponse response1=(HttpServletResponse)response;
//        try
//        {
//            request.setCharacterEncoding("GBK");
//           String url= request1.getRequestURI();
//           if((request1.getSession().getAttribute("useBean"))==null)
//           {
//
//               if(url.indexOf("bookInfAction.do")>-1||url.indexOf("shopcar.jsp")>-1)
//               {
//                  response1.sendRedirect("/shop/jsp/reg/login1.jsp");
//               }else
//               {
//                   filterChain.doFilter(request1, response);
//               }
//           }else
//            filterChain.doFilter(request1, response1);
//        }
//        catch (Exception ex)
//        {
//            ex.printStackTrace();
//        }
        try
        {request.setCharacterEncoding("GBK");
            filterChain.doFilter(request, response);
        }
        catch (ServletException ex)
        {
        }
        catch (IOException ex)
        {
        }
    }

    //Clean up resources
    public void destroy()
    {
    }
}