package com.liang.bike.interceptor;

 

import com.liang.bike.bean.base.UserBase;

import org.apache.log4j.Logger;

import org.springframework.web.servlet.HandlerInterceptor;

import org.springframework.web.servlet.ModelAndView;

 

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import javax.servlet.http.HttpSession;

 

public class LoginInterceptor implements HandlerInterceptor {

    private Logger logger = Logger.getLogger(LoginInterceptor.class);

 

    // 身份认证、身份授权

    @Override

    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {

 

        // 判断session

        HttpSession session = request.getSession();

        UserBase user = (UserBase) session.getAttribute("user");

        boolean flag = false;

        if (user != null) {

            flag = true;

        } else {

            // 获取请求的url

            String redirectUrl = request.getRequestURI();

            session.setAttribute("redirectUrl", redirectUrl);

            String bikeNo = request.getParameter("bikeNo");

            session.setAttribute("bikeNo", bikeNo);

            logger.info("请求的URL" + redirectUrl + bikeNo);

            // 执行这里表示用户身份需要认证，跳转登陆页面

            logger.info("跳转到登录页面:login.jsp");

            request.getRequestDispatcher("/WEB-INF/bike/user/login.jsp").forward(request, response);

        }

        return flag;

    }

 

    @Override

    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {

        logger.info("拦截器postHandle方法执行");

    }

 

    @Override

    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {

        logger.info("拦截器afterCompletion方法执行");

    }