spring boot 实现一个 禁止重复请求的方法

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

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface NoRepeatRequest {
}

@Component
public class NoRepeatRequestInterceptor implements HandlerInterceptor {
   private Map<String, Object> requestMap = new ConcurrentHashMap<>();
   @Override
   public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
       // 获取请求的URL和方法名
       String url = request.getRequestURL().toString();
       String method = request.getMethod();
       // 生成请求的唯一标识
       String key = url + "_" + method;
       // 如果容器中已存在该请求，则表示是重复请求
       if (requestMap.containsKey(key)) {
           response.getWriter().write("Duplicate request");
           return false;
       }
       // 将请求添加到容器中
       requestMap.put(key, new Object());
       return true;
   }
   @Override
   public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
       // 请求处理完毕后，从容器中移除该请求
       String url = request.getRequestURL().toString();
       String method = request.getMethod();
       String key = url + "_" + method;
       requestMap.remove(key);
   }
}

@Configuration
public class WebConfig implements WebMvcConfigurer {
   @Autowired
   private NoRepeatRequestInterceptor noRepeatRequestInterceptor;
   @Override
   public void addInterceptors(InterceptorRegistry registry) {
       registry.addInterceptor(noRepeatRequestInterceptor)
               .addPathPatterns("/**")  // 可以根据具体的URL进行配置
               .excludePathPatterns("/error");  // 排除错误页面的拦截
   }
}

@Controller
public class TestController {
   @NoRepeatRequest
   @RequestMapping("/test")
   @ResponseBody
   public String test() {
       // 处理业务逻辑
       return "success";
   }
}