SpringBoot如何实现持久化登录状态获取

//登陆成功后
//...将用户账号信息存入数据库中
//写cookie,(因存入数据库，无需写入session了)
            response.addCookie(new Cookie("token",token));

@Controller
public class IndexController {
    @Autowired
    private UserMapper userMapper;
    @GetMapping("/")
    public String index(HttpServletRequest request){
        Cookie[] cookies = request.getCookies();
        if (cookies != null){
            for (Cookie cookie : cookies) {
                if (cookie.getName().equals("token")){
                    String token = cookie.getValue();
                    System.out.println("准备进数据库");
                    User user = userMapper.findByToken(token); //去数据库寻找该token值的用户信息
                    System.out.println(user.toString());
                    if(user != null){ //若找到了这个用户信息
                        //写进session，让页面去展示
                        request.getSession().setAttribute("user",user);
                    }
                    break;
                }
            }
        }
        return "index";
    }
}

CREATE TABLE `t_account` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键',
  `name` varchar(64) NOT NULL DEFAULT '' COMMENT '姓名',
  `mobile` varchar(32) NOT NULL COMMENT '手机号',
  `identity` varchar(32) NOT NULL COMMENT '身份证号码',
  `user_name` varchar(32) NOT NULL COMMENT '账户',
  `password` varchar(64) NOT NULL DEFAULT '' COMMENT '登录密码',
  `accept_region` bigint(20) NOT NULL COMMENT '受理中心（网点）编号',
  `status` int(11) NOT NULL DEFAULT '1' COMMENT '状态：  0 禁用,1 正常,9 删除',
  `create_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
  `create_by` bigint(20) DEFAULT NULL COMMENT '创建人Id',
  `update_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '修改时间',
  `update_by` bigint(20) DEFAULT NULL COMMENT '修改人Id',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=0 DEFAULT CHARSET=utf8 ROW_FORMAT=DYNAMIC COMMENT='C端网点人员账户表';

@RestController
@RequestMapping(value = WebConstants.WEB_PREFIX + "/account")
@Api(tags = "Account", description = "账户模块")
@NoAuth
public class AccountController { 
    @Autowired
    private AccountService accountService;
 
    @Autowired
    private StringRedisTemplate redisTemplate;
 
    @PostMapping(value = "/login")
    @ApiOperation("登录")
    public ResponseVo<AccountVo>login(@RequestBody LoginForm form, HttpServletRequest request,
                                      HttpServletResponse response)   {
 
        HttpSession session=request.getSession();
        AccountDto accountDto=accountService.login(form.getUserName(),form.getPassword());
        if(null==accountDto){
            throw new BizException("用户名或密码错误！");
        }
        redisTemplate.opsForValue().set(session.getId(), JSON.toJSONString(accountDto));
        AccountVo accountVo= BeanCopy.of(accountDto,new AccountVo()).copy(BeanUtils::copyProperties).get();
        accountVo.setAceptRegion(AcceptRegionEnum.getDescByValue(accountDto.getAceptRegion()));
        return ResponseVo.successResponse(accountVo);
    } 
 
    @Login
    @PostMapping(value = "/logout")
    @ApiOperation("登出")
    public ResponseVo logout(HttpServletRequest request,HttpServletResponse response){
        HttpSession session=request.getSession();
        session.invalidate();
        redisTemplate.delete(session.getId());
        return ResponseVo.successResponse();
    } 
}

@Component
public class LoginInterceptor implements HandlerInterceptor { 
    private Logger logger= LoggerFactory.getLogger(LoginInterceptor.class);
    @Autowired
    private StringRedisTemplate redisTemplate;
 
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception { 
        HandlerMethod handlerMethod = (HandlerMethod) handler;
        Class<?> clazz = handlerMethod.getBeanType();
        Method m = handlerMethod.getMethod();
 
        //需登录才可以访问的(预约核验模块)
        if (clazz.isAnnotationPresent(NoLogin.class) || m.isAnnotationPresent(NoLogin.class)) {
            return true; 
        }
        HttpSession session=request.getSession();
            //检测redis中是否含有sessionId
            String val=redisTemplate.opsForValue().get(session.getId());
            if(null!=val){
                logger.info(val);
                AccountDto accountDto= JSON.parseObject(val,AccountDto.class);
                AcceptRegionUserVistor vistor=new AcceptRegionUserVistor();
                BeanUtils.copyProperties(accountDto,vistor);
                AcceptRegionUserThreadContext.putSessionVisitor(vistor);
                return true;
            }else{
                response.setStatus(401);
                throw  new BizException("401","common.system.user.not.login");
            }        
    }
 
    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception { 
    } 
    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception { 
    }
} 

@Configuration
public class WebConfiguration extends WebMvcConfigurationSupport {    
    @Autowired
    private LoginInterceptor loginInterceptor;      
    /**
     * 拦截器配置
     *
     * @param registry 注册类
     */
    @Override
    public void addInterceptors(InterceptorRegistry registry) {        
        registry.addInterceptor(loginInterceptor).addPathPatterns(WebConstants.WEB_PREFIX + "/**"); 
        super.addInterceptors(registry);
    }
}