administratorfilter.java

本系统是网上购物的详细代码

package cn.com.tarena.ecport.web.filter;

import java.io.IOException;

import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

public class AdministratorFilter extends HttpFilter {

	@Override
	public void doFilter(HttpServletRequest request,
			HttpServletResponse response, FilterChain chain)
			throws ServletException, IOException {
		HttpSession session = request.getSession(false);
		
		if(session == null || !("2".equals(session.getAttribute("managerLogin")))){
			request.getRequestDispatcher("/administrator/managerLogin.html").forward(request, response);
		}else{
			chain.doFilter(request, response);	
		}
	}

}