拦截器

package com.yoozoo.mba.interceptor;

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

import com.yoozoo.mba.config.AppConfig;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

@Component
public class YoobiCookieInterceptor implements HandlerInterceptor {

    @Autowired
    AppConfig appConfig;
    
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
            throws Exception {

        Cookie[] cookies = request.getCookies();
        String cookieValue = null;
        if (cookies != null) {
            for (Cookie cookie : cookies) {
                if (cookie.getName().equals("JSESSIONID")) {
                    cookieValue = cookie.getValue();
                    break;
                }
            }
        }

        appConfig.setJSESSIONID(cookieValue);

        return true;
    }

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

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler,
            Exception exception) throws Exception {
    }
}

package com.yoozoo.mba.config;

import com.yoozoo.mba.interceptor.YoobiCookieInterceptor;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

@Component
public class WebMvcConfig implements WebMvcConfigurer {
    @Autowired
    YoobiCookieInterceptor yoobiCookieInterceptor;

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(yoobiCookieInterceptor);
    }
}