springboot 登录校验

实现HandlerInterceptor 

重写

preHandle

afterCompletion

preHandle返回true则放行，若放回false则拒绝请求

public class LoginInterceptor implements HandlerInterceptor {

    @Autowired
    private StringRedisTemplate redis;

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
//        OPTIONS请求直接放行
        if (HttpMethod.OPTIONS.toString().equals(request.getMethod())) {
            return true;
        }

        String headertoken = request.getHeader("token");
        String token1 = redis.opsForValue().get("token");

        return true;

    }



    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        HandlerInterceptor.super.afterCompletion(request, response, handler, ex);
    }
}