tomcat启动时抛出URL检查问题

 

这是什么问题呢？这个问题已经纠结了我好几天了。。。

原来是在项目中加了个过滤器问题

做登录 session检查时出现的问题

 

 

 

解决方法：

1、要么把过滤器给删了（因为你的过滤器配置有问题）

2、正确拦截页面或请求

package org.booking.filter;

import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

/**
 * Created by Administrator on 2017/3/17.
 */
public class CheckLogin implements Filter {

    private final static String NAME = "adminName";
    /*这个集合存放所有想要拦截的请求url*/
    private List<String> chainList = new ArrayList<>();
    public CheckLogin(){
       chainList.add("../maoYan_background/index.jsp");
    }
    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
        HttpServletRequest req = (HttpServletRequest) request;
        HttpServletResponse res = (HttpServletResponse) response;
        String path = req.getServletPath();
        /*只要集合存在这个请求的url路径，就放行*/
        if(chainList.indexOf(path) == -1){
            chain.doFilter(req,res);
        }else {
            HttpSession session = req.getSession();
            if(session.getAttribute(NAME) == null){
                if(req.getHeader("x-requested-with")==null){
                    res.sendRedirect("../maoYao_Login/login.html");
                    return;
                }else{
                    res.setContentType("text/html;charset=utf-8");
                    res.getWriter().print("false");
                }
            }else {
                chain.doFilter(req,res);
            }
        }
    }


    @Override
    public void init(FilterConfig filterConfig) throws ServletException {

    }

    @Override
    public void destroy() {

    }

}