loginfilter.java

jsp+servlet+Hibernte实现的公务员网上报名系统。为大学毕业设计成果

package com.filter;

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 destroy() {
		
	}

	public void doFilter(ServletRequest arg0, ServletResponse arg1,
			FilterChain arg2) throws IOException, ServletException {

		HttpServletRequest request = (HttpServletRequest)arg0;
		HttpServletResponse response = (HttpServletResponse)arg1;
		
		HttpSession session = request.getSession(false);
		String booleanLogin = (String) session.getAttribute("isLogin");
		if(booleanLogin.equals("true")){
			arg2.doFilter(arg0, arg1);
			return;
		}else{
			request.getRequestDispatcher("/form/E_NotLoginYet.jsp").forward(request,response);
		}
	}

	public void init(FilterConfig arg0) throws ServletException {
		

	}

}