com.spring.common.handlerInterceptor.java Source code

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Here is the source code for com.spring.common.handlerInterceptor.java

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package com.spring.common;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

//1
public class handlerInterceptor implements HandlerInterceptor {

    @Autowired
    private HttpSession session;

    //handler???????
    //??????
    /**
     * 
     * @param request
     * @param response
     * @param handler
     * @return
     * @throws Exception 
     */
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
            throws Exception {
        response.addHeader("Access-Control-Allow-Origin", "*");
        /*String url = request.getRequestURI();
        return url.contains("display");*/
        System.out.println(session.getAttribute("user"));
        //false??
        return true;
    }

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

        System.out.println("----");
    }

    //handler?
    //????
    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler,
            Exception ex) throws Exception {
        System.out.println("----?");
    }
}