Java使用注解实现防止重复提交实例

/**
 * 自定义注解防止表单重复提交
 */
@Documented
@Target({ElementType.TYPE,ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
public @interface NoRepeatSubmit {
    int lockTime() default 5;
}

public class HttpContextUtils {
    public static HttpServletRequest httpServletRequest(){
        return ((ServletRequestAttributes) Objects.requireNonNull(RequestContextHolder.getRequestAttributes())).getRequest();
    }
}

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

@Component
@Aspect
public class NoRepeatSubmitAspect {
    @Autowired
    private RedisTemplate<String,Object> redisTemplate;
    @Pointcut("@annotation(repeatSubmit)")
    public void pointcutNoRepeat(NoRepeatSubmit repeatSubmit){};
    @Around("pointcutNoRepeat(noRepeatSubmit)")
    public Object doNoRepeat(ProceedingJoinPoint point, NoRepeatSubmit noRepeatSubmit) throws Throwable {
        int i=noRepeatSubmit.lockTime();
        HttpServletRequest httpServletRequest = HttpContextUtils.httpServletRequest();
        String token = httpServletRequest.getHeader("token");
        String url = httpServletRequest.getRequestURL().toString();
        String sign = url+"/"+token;
        Boolean key=redisTemplate.hasKey(sign);
        if (key){
            throw new Exception("请勿重复提交");
        }
        redisTemplate.opsForValue().set(sign,sign,i, TimeUnit.SECONDS);
        return  point.proceed();
    }
}