SpringBoot整合redis把用戶登陸信息存入redis

首先引入redis的jai包

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>

在userserviceimpl引用springboot自帶的StringRedisTemplate

@Autowired private StringRedisTemplate stringRedisTemplate;

在userserviceimpl中經過usermapper查詢到用戶名和密碼等用戶信息後

 

若是user != null ,把user實體類轉換成json格式，redis是key/value格式，保證數據惟一性，因此key用uuid作key，user作value，確保惟一性

 

插入到redis後要在獲取key的話要用到cookie了，把key存到cookie中，取的時候在cookie中取

 

//把user實體類轉化成json格式
String userJoin = JSON.toJSONString(user); if (user != null) { //獲取uuid
        String uuid = UUIDUtils.getUUID(); //建立cookie
        Cookie cookie = new Cookie("userCookie", uuid); response.addCookie(cookie); //把用戶信息存入redis set（key，value，過時時長，過時格式） 設置三天過時
        stringRedisTemplate.opsForValue().set("user" + "/" + uuid, userJoin, 3, TimeUnit.DAYS); return Msg.ok(""); } else { return Msg.failure("用戶名或密碼錯誤"); }

而後在usercontroller獲取的時候

@RequestMapping(value = "/toMainPage") public ModelAndView toMainPage(HttpServletRequest request, HttpServletResponse response) { ModelAndView mv; String struuid = null; //獲取cookie裏面的uuid
        Cookie[] cookies = request.getCookies(); for (Cookie cookie : cookies) { if (cookie.getName().equalsIgnoreCase("userCookie")) { struuid = cookie.getValue(); } } if (struuid == null) { System.out.println("驗證不經過"); System.out.println("UUID不存在"); } String userJson; try { //根據struuid，在redis中獲取user信息 userJson = stringRedisTemplate.opsForValue().get("user" + "/" + struuid);
            JSONObject pa = JSONObject.parseObject(userJson); if ("管理員".equals(pa.getString("uRank")) && userJson != null) { mv = new ModelAndView("index"); mv.addObject("user", pa.getString("uName")); mv.addObject("id", pa.getString("id")); mv.addObject("uPwd", pa.getString("uPwd")); } else if ("普通用戶".equals(pa.getString("uRank")) && userJson != null) { mv = new ModelAndView("pt_index"); mv.addObject("user", pa.getString("uName")); mv.addObject("id", pa.getString("id")); mv.addObject("uPwd", pa.getString("uPwd")); } else { mv = new ModelAndView("redirect:login"); } } catch (Exception e) { // TODO Auto-generated catch block
            mv = new ModelAndView("redirect:login"); } return mv; }

 

原文出處：https://www.cnblogs.com/kangshuolei/p/12091231.html