基于redis实现token验证用户是否登陆

<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-redis</artifactId></dependency><dependency> <groupId>org.springframework.session</groupId> <artifactId>spring-session-data-redis</artifactId> <version>2.0.5.RELEASE</version></dependency>

//若用户登录验证成功后将对应的登陆信息和登陆凭证一起存入redis中//生成登陆凭证token UUIDString uuidToken= UUID.randomUUID().toString();uuidToken=uuidToken.replace("-",""); //将token和用户登录态之间建立联系redisTemplate.opsForValue().set(uuidToken,userModel);redisTemplate.expire(uuidToken,1, TimeUnit.HOURS); // 下发tokenreturn CommonReturnType.create(uuidToken);

 String token = httpServletRequest.getParameterMap().get("token")[0]; if (StringUtils.isEmpty(token)) { throw new BusinessException(EmBusinessError.USER_NOT_LOGIN, "用户还未登陆,不能下单"); } //获取用户的登陆信息 UserModel userModel= (UserModel) redisTemplate.opsForValue().get(token); if(userModel==null){ throw new BusinessException(EmBusinessError.USER_NOT_LOGIN, "用户还未登陆,不能下单"); }  OrderModel orderModel = orderService.creatOrder(userModel.getId(), itemId, promoId, amount); return CommonReturnType.create(null);

if(data.status == "success") { alert("登陆成功"); //取出token放入localstorage var token = data.data; window.localStorage["token"] = token; window.location.href = "listitem.html";}

var token = window.localStorage["token"]; if(token == null){ alert("没有登录，不能下单"); window.location.href="login.html" rel="external nofollow" ; return false; } 

url:"http://"+g_host+"/order/createorder?token="+token,