package com.welampiot.security;

import com.alibaba.fastjson.JSON;
import com.welampiot.common.BaseResult;
import com.welampiot.common.ResultEnum;
import org.springframework.security.web.session.SessionInformationExpiredEvent;
import org.springframework.security.web.session.SessionInformationExpiredStrategy;
import org.springframework.stereotype.Component;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * 会话信息过期策略
 */
@Component
public class CustomizeSessionInformationExpiredStrategy implements SessionInformationExpiredStrategy {
    @Override
    public void onExpiredSessionDetected(SessionInformationExpiredEvent sessionInformationExpiredEvent) throws IOException, ServletException {
        HttpServletResponse httpServletResponse = sessionInformationExpiredEvent.getResponse();
        httpServletResponse.setContentType("text/json;charset=utf-8");
        httpServletResponse.getWriter().write(JSON.toJSONString(BaseResult.success(ResultEnum.USER_NOT_LOGIN)));
    }
}