Map<RequestMappingInfo, HandlerMethod> handlerMethods =
    						requestMappingHandlerMapping.getHandlerMethods();

public final class RequestMappingInfo implements RequestCondition<RequestMappingInfo> {
  	// 這個映射對象的名字
  	@Nullable
	private final String name;
	// 此RequestMappingInfo對象的URL模式
	@Nullable
	private final PathPatternsRequestCondition pathPatternsCondition;
	// 此RequestMappingInfo的HTTP請求方法；
	@Nullable
	private final PatternsRequestCondition patternsCondition;
	
	private final RequestMethodsRequestCondition methodsCondition;
	// 此RequestMappingInfo的“參數”條件
	private final ParamsRequestCondition paramsCondition;
	// 此RequestMappingInfo的“headers”條件；
	private final HeadersRequestCondition headersCondition;

	private final ConsumesRequestCondition consumesCondition;

	private final ProducesRequestCondition producesCondition;

	private final RequestConditionHolder customConditionHolder;

	private final int hashCode;

	private final BuilderConfiguration options;
}

public class HandlerMethod {
 
    // bean的名稱，可通俗理解為類名
	private final Object bean;

	@Nullable
	private final BeanFactory beanFactory;

	@Nullable
	private final MessageSource messageSource;
	
	// 方法所屬類
	private final Class<?> beanType;
    // 對應方法
	private final Method method;
	// 被橋接的方法,如果method是原生的，這個屬性的值就是method
	private final Method bridgedMethod;
	// 封裝方法參數的類實例，一個MethodParameter就是一個參數
	private final MethodParameter[] parameters;

	@Nullable
	private HttpStatus responseStatus;

	@Nullable
	private String responseStatusReason;

	@Nullable
	private HandlerMethod resolvedFromHandlerMethod;

	@Nullable
	private volatile List<Annotation[][]> interfaceParameterAnnotations;

	private final String description;

}

RequestMethod requestMethod = RequestMethod.GET ;
 RequestMappingInfo requestMappingInfo = 
 					RequestMappingInfo.paths("/export/getInfo").methods(requestMethod).build();

Method method = handlerMethods.get(requestMappingInfo).getMethod();

method.invoke(method.getDeclaringClass());
// 若存在參數，則使用以下方案，其中param為入參
method.invoke(method.getDeclaringClass(), param);