UserSessionIntercept.java
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package com.espeed.intercept;
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.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import com.espeed.centre.pojo.YxyUserInfo;
public class UserSessionIntercept extends HttpServlet implements Filter{
private static final long serialVersionUID = 1L;
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
HttpServletRequest req = (HttpServletRequest) request;
HttpServletResponse res = (HttpServletResponse) response;
HttpSession session = req.getSession(true);
YxyUserInfo user = (YxyUserInfo) session.getAttribute("yxyuser");
String url=req.getRequestURI();
//用户sesssion中没有放置user说明没有进入LoginAction,此时就要过滤该请求,并转发到登录页面
if(session==null||user==null||user.equals("")){
if(url!=null&&!url.equals("")&&url.indexOf("webmailsend.action")<0&&url.indexOf("yxylogin.action")<0)
{
res.getWriter().println("Unauthorized access...");
return;
}
//
// //singleLogin.jsp和login.jsp默认不过滤
// if(url!=null&&!url.equals("")&&url.indexOf("yxylogin")<0&&url.indexOf("verificationLogin.action")<0&&url.indexOf("yxyindex.jsp")<0&&url.indexOf("webmailsend.action")<0){
// // 如果是ajax请求响应头会有，x-requested-with；
// if (req.getHeader("x-requested-with") != null && req.getHeader("x-requested-with").
// equalsIgnoreCase("XMLHttpRequest")){
// res.setStatus(911);//表示session timeout
// return;
// }
// // req.getRequestDispatcher("http://localhost:8080/espeedCenterServiceLast/login2.jsp");
// //((HttpServletResponse) response).sendRedirect("http://localhost:8080/espeedCenterServiceLast/login2.jsp");
// return ;
// }
}
//允许请求
chain.doFilter(request, response);
// HttpServletRequest req = (HttpServletRequest) request;
// HttpServletResponse res = (HttpServletResponse) response;
// HttpSession session = req.getSession(true);
// YxyUserInfo user = (YxyUserInfo) session.getAttribute("yxyuser");
// String url=req.getRequestURI();
// if(session==null||user==null){//用户没登录
// if(url.indexOf("login.jsp")>0){//请求的是登录页面
// //允许请求
// chain.doFilter(request, response);
// }else if(url.indexOf("user_yxyLogin.action")>0){//请求的是登录验证
// //允许请求
// chain.doFilter(request, response);
// }else{
// //req.getRequestDispatcher("/login.jsp").forward(req, res);
// //重定向到登录页面
// res.sendRedirect("login.jsp");
// }
// }
// else{//用户已登录
// if("/".equals(url))//请求的是根目录
// {
// //重定向到主页面
// res.sendRedirect("yxyindex.jsp");
// }
// else
// {
// //允许请求
// chain.doFilter(request, response);
// }
// }
}
public void init(FilterConfig filterConfig) throws ServletException
{
System.out.println("营销服务启动初始化...");
}
}