authenticationfilter.java

这个是完整的wap项目的源码 开发语言 Java 系统架构 Struts + hibernate + spring 数据库 Mysql5.0 应用服务器Tomcat5.0 开发工具 MyEc

package com.longtime.wap.common.web;

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

import com.longtime.wap.common.WapConstant;
import com.longtime.wap.frame.common.FrameConstant;
import com.longtime.wap.frame.common.UserSessionVO;

/**
 * 用户超过时限处理
 * 
 * @author bulc
 * @date Sep 4, 2007
 * 
 */
public class AuthenticationFilter implements Filter {

	/**
	 * 超过时限处理
	 */
	public void destroy() {
	}

	/**
	 * 用户超过时限的处理
	 * 
	 * @param req
	 *            ServletRequest对象
	 * @param res
	 *            ServletResponse对象
	 * @param doNext
	 *            FilterChain对象
	 * @throws IOException
	 *             IO异常
	 * @throws ServletException
	 *             Servlet 异常
	 */
	public void doFilter(ServletRequest req, ServletResponse res,
			FilterChain doNext) throws IOException, ServletException {
		HttpServletRequest request = (HttpServletRequest) req;
		HttpServletResponse response = (HttpServletResponse) res;

		HttpSession session = request.getSession(Boolean.TRUE);

		if (!session.isNew()
				&& null == session.getAttribute(WapConstant.USER_SESSION)) {
			request.setAttribute(FrameConstant.RELOGIN_MESSAGE,
					"对不起，您没有登录或登录已超时，");
			RequestDispatcher rd = request
					.getRequestDispatcher("/frame/jsp/sessionTimeout.jsp");
			rd.forward(request, response);
		} else {
			UserSessionVO us = (UserSessionVO) session
					.getAttribute(WapConstant.USER_SESSION);
			String path = request.getRequestURL().toString();
			if (!path.contains("/frontIndex")
					&& !path.contains("/registerUserView")
					&& !path.contains("/registerUser")
					&& !path.contains("/informationDetail")
					&& !path.contains("/listBusinesses")
					&& !path.contains("/listInformations")
					&& !path.contains("/listUserPayment")
					&& !path.contains("/findPassword") 
					&& !path.contains("/searchInformation")
					&& !path.contains("/listUserPayment")) {
				if (2 == us.getUserGroup()) {
					RequestDispatcher rd = request
							.getRequestDispatcher("/invalidation.jsp");
					rd.forward(request, response);
				} else {
					doNext.doFilter(request, response);
				}
			} else {
				doNext.doFilter(request, response);
			}

		}
	}

	/**
	 * 初始化
	 * 
	 * @param filterConf
	 *            FilterConfig对象
	 * @throws ServletException
	 *             Servlet 异常
	 */
	public void init(FilterConfig filterConf) throws ServletException {
	}

}