springboot-RequestMappingHandlerMapping

作用：查看应用请求对应的ur和方法l情况

实例：

 RequestMappingHandlerMapping mapping  =applicationContext.getBean("requestMappingHandlerMapping",RequestMappingHandlerMapping.class);

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