进入网页获取微信授权后会把获取到的微信用户信息放到session里面，退出时需要关闭session吗

在写一个网页，需要微信授权的登录，前几次还会弹出微信授权，后面就直接没反应了 这是网页的首页 @RequestMapping("/add") public String puclicIndex(HttpServletRequest request, HttpServletResponse response) throws IOException { weiXinController.getOpenid(request,response); return "forward:/news/index.html"; } package com.videoSys.controller; import com.videoSys.weixin.AuthAccessToken; import com.videoSys.weixin.WXUserInfo; import com.videoSys.weixin.WeiXinService; import com.videoSys.weixin.WeiXinTool; import org.apache.commons.lang.StringUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import javax.servlet.ServletContext; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import java.io.IOException; @Controller public class WeiXinController extends BaseController { Logger logger = LoggerFactory.getLogger(WeiXinController.class); @Autowired private WeiXinService weiXinService; private WeiXinTool weiXinTool = new WeiXinTool(); /** * 微信获取openid回调接口 * @param code * @param state * @param request * @param session * @return */ @RequestMapping("/getOpenid.htm") public String getOpenid(String code, String state, String refUrl, HttpServletRequest request, HttpSession session) { System.out.println("code="+code+"state:"+state+"refUrl:"+refUrl); System.out.println("request:"+request.toString()); System.out.println("session:"+session.toString()); if(WeiXinTool.isWX(request)){ logger.info("微信浏览器"); //微信浏览器 if(StringUtils.isNotBlank(code) && StringUtils.isNotBlank(state)){ logger.info("code,state不为空"); //获取openid跳转回来的 //有跳转链接和Code,获取openid if (getOpenid(request)==null) { AuthAccessToken authAccessToken = this.weiXinService.getAuthAccessToken(code); System.out.println("AuthAccessToken=="+authAccessToken.getAccessToken()+","+authAccessToken.getOpenid()+","+authAccessToken.getScope()+","+authAccessToken.getRefreshToken() ); if(authAccessToken != null){ String openid = authAccessToken.getOpenid(); session.setAttribute("openid", openid); System.out.println("获取到openid并设置到session中。完成获取openid流程!\topenid:"+openid); //获取到微信用户信息 WXUserInfo wxUserInfo = this.weiXinTool.getWXUserInfo(authAccessToken); System.out.println("wxUserInfo=="+wxUserInfo.toString()); //将微信用户信息根据openid为key存到servletContext System.out.println("openid="+openid+"wxUserInfo=="+wxUserInfo.toString()); ServletContext servletContext = request.getServletContext(); servletContext.setAttribute(openid, wxUserInfo); System.out.println("servletContent:"+servletContext.getAttribute(openid)); logger.info("获取微信用户信息成功.将其根据openid为key，保存进application中。"); //获取跳转之前的url if(refUrl != null) { logger.info("跳转回之前链接。url："+refUrl); return "redirect:"+refUrl; } } } } } return ""; } /** * 检查是否微信浏览器,并且获取openid * @param request * @throws IOException */ public String getOpenid(HttpServletRequest request, HttpServletResponse response) throws IOException { HttpSession session = request.getSession(); if(getOpenid(request) != null) { //已经存在openid,直接退出 return null; } if(!WeiXinTool.isWX(request)){ //不是微信浏览器 直接退出 return null; } //将当前的url存到session中 StringBuffer currentUrl = request.getRequestURL(); System.out.println("currentUrl:"+currentUrl.toString()); String uri = request.getRequestURI(); System.out.println("uri:"+uri.toString()); String domain = currentUrl.substring(0,currentUrl.length()-uri.length()); System.out.println("domain:"+domain); //调用微信获取openid String redirectUrl = weiXinService.getAuthRedirectUrl(domain+"/getOpenid.htm?refUrl="+currentUrl,WeiXinTool.SCOPE_SNS_API_USERINFO,"STATE"); System.out.println("redirectUrl:"+redirectUrl); response.sendRedirect(redirectUrl); return ""; } }