myfilter.java

这是本人以前在学校时

package com.funddeal.base;

import java.io.IOException;


import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
//import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServlet;
//import javax.servlet.http.HttpServletRequest;
//import javax.servlet.http.HttpSession;
/*过滤器*/
public class MyFilter extends HttpServlet implements Filter {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	public void init(FilterConfig arg0) throws ServletException {
		// TODO Auto-generated method stub

	}

	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain filterChain) throws IOException, ServletException {
		
//		HttpSession session=((HttpServletRequest)request).getSession();
//		HttpServletRequest httpReq =(HttpServletRequest)request;
//		
//		String path = httpReq.getServletPath();
//		System.out.println("path="+path);
//		if(session.getAttribute("will")==null){
//			if(!path.equals("/interface/sales/Login.jsp")){
//				RequestDispatcher reguestdis=((HttpServletRequest) request).
//					getRequestDispatcher("/interface/sales/Login.jsp");
//				reguestdis.forward(request,response);
//			}
//			else{
//				filterChain.doFilter(request,response);
//			}
//		}
		filterChain.doFilter(request,response);
	}
	
	 public void destroy()
	 {
	 	
	 }
}