[@RequestMapping](/user/RequestMapping)(value = "/subscribeEven")
[@ResponseBody](/user/ResponseBody)
public Object subscribeEven(HttpServletRequest req, HttpServletResponse resp){
    LOGGER.warn("1111111111111111111111111111111111");
    boolean isGet = req.getMethod().toLowerCase().equals("get");
    if (isGet){   //验证URL
        //将token、timestamp、nonce这三个参数拼接成一个字符串并按照sha1的算法进行加密，得到一个加密字符串
        //并将该字符串与获得的signature参数进行比较，如若相同，将echostr参数内容原样返回，代表接入生效，否则失败。
        String signature = req.getParameter("signature");
        String timestamp = req.getParameter("timestamp");
        String nonce = req.getParameter("nonce");
        String echostr = req.getParameter("echostr");
        String[] arr=new String[]{tokken,timestamp,nonce};
        sort(arr);  //字典排序
        StringBuilder stringBuilder=new StringBuilder();
        for (int i = 0; i < arr.length; i++) {
            stringBuilder.append(arr[i]);
        }
       String tmpStr =null;
        MessageDigest md=null;
        try {
            md=MessageDigest.getInstance("SHA-1");  //SHA加密算法
            byte[] digest=md.digest(stringBuilder.toString().getBytes());
           tmpStr = StringUtils.byteToStr(digest);
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        }
        return tmpStr.equals(signature.toUpperCase())==true?echostr:null;
    }
    try {
        //把
        Map<String, String> xmlToMap = XmlUtil.xmlToMap(req);
        LOGGER.warn(xmlToMap);
        if ("event".equals(xmlToMap.get("MsgType"))){  // 事件类型
            String event = xmlToMap.get("Event");
            if ("subscribe".equals(event)){   // 关注事件
                String fromUserName = xmlToMap.get("FromUserName");  // 用户的openid
                WechatMember  subscribeUser = WechatUtil.getMemberInfoByOpenID(fromUserName);  //获取用户的信息
               LOGGER.warn("subscribeUser = " +subscribeUser);
               if (null != subscribeUser){
                   Integer subscribe = subscribeUser.getSubscribe();
                   String sub = StringUtil.getOpVal(subscribe);
                   if ("1".equals(sub)){  //用户已关注
                       String unionid = subscribeUser.getUnionid();
                       String openid = subscribeUser.getOpenid();
                       String nickname = subscribeUser.getNickname();
                       Users users = usersService.getUserByAccount(unionid, IUsersService.IDENTITY_MEMBER);
                       if (null!=users){     //存在用户则更新授权
                           usersService.updateOpenIdByAccount(openid, unionid);
                           LOGGER.debug("账号为 " + unionid + " 的openid更改成功！");
                       }else {   //不存在用户则注册
                           users=new Users();
                           users.setAccount(unionid);//账号
                           users.setPhone(null);//手机号
                           users.setIdentity(IUsersService.IDENTITY_MEMBER);//身份 会员3
                           users.setPassword(StringUtil.generatePassword(StringUtil.getRandomString(6)));//密码随机
                           users.setName(nickname);//姓名
                           users.setDelFlag(1);
                           users.setUserfrom(2);   //来自微信
                           //产生随机6位的邀请码
                           String inviteCode = StringUtil.getRandomString(6);
                           users.setInviteCode(inviteCode);
                           users.setNickname(nickname);//昵称
                           String token = StringUtil.generateToken(unionid, new Date().getTime());
                           users.setToken(token);
                           users.setTokenTime(new Date());
                           users.setIdentity(IUsersService.IDENTITY_MEMBER);
                           //app类型
                           users.setLoginApp(11);
                           usersService.addUsers(users,null,null,null);//添加会员
                       }
               }
                    //回复用户信息
                    String contrnt="欢迎！！";
                    TextMessage text = new TextMessage();
                    text.setFromUserName(xmlToMap.get("toUserName"));
                    text.setToUserName(fromUserName);
                    text.setMsgType("text");  //文本类型
                    text.setCreateTime(new Date().getTime());
                    text.setContent(contrnt);
                    String textMsgToxml = XmlUtil.textMsgToxml(text);
                    resp.getWriter().write(textMsgToxml);
                    return textMsgToxml;
                }
            }else if ("unsubscribe".equals(event)){  // 注销事件

            }
        }

    } catch (IOException e) {
        e.printStackTrace();
    } catch (DocumentException e) {
        e.printStackTrace();
    } catch (BizException e) {
        e.printStackTrace();
    }
    return null;
}