fix javadoc warning

src/main/java/com/imyeyu/spring/annotation/RequestRateLimitAbstractInterceptor.java

@@ -14,6 +14,18 @@ import org.springframework.web.servlet.HandlerInterceptor;
  */
 public abstract class RequestRateLimitAbstractInterceptor implements HandlerInterceptor {
 
+	/**
+	 * 创建访问频率限制拦截器
+	 */
+	protected RequestRateLimitAbstractInterceptor() {
+	}
+
+	/**
+	 * 构建接口标识
+	 *
+	 * @param handlerMethod 方法信息
+	 * @return 接口标识
+	 */
 	protected String buildId(HandlerMethod handlerMethod) {
 		return handlerMethod.getMethod().getDeclaringClass().getSimpleName() + "." + handlerMethod.getMethod().getName();
 	}