方法：在你springboot项目的基础上，创建下面的类：

package com.llq.wahaha.listener;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationEvent;
import org.springframework.context.ApplicationListener;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.Arrays;
import java.util.stream.Collectors;

/**
 * @author llq
 * @Description ApplicationListener实现类
 */

@Component
public class ControllerPrinter implements ApplicationListener<ApplicationEvent> {


    @Autowired
    private ApplicationContext applicationContext;



    @Override
    public void onApplicationEvent(ApplicationEvent event) {
        System.out.println("-----------------------");
        Arrays.stream(applicationContext.getBeanDefinitionNames())
                .filter(name -> applicationContext.getType(name).isAnnotationPresent(RestController.class))
                .forEach(controllerName -> {
                    Class<?> controllerClass = applicationContext.getType(controllerName);
                    System.out.println("Controller: " + controllerClass.getName());

                    Arrays.stream(controllerClass.getDeclaredMethods())
                            .filter(method -> method.isAnnotationPresent(RequestMapping.class))
                            .forEach(method -> {
                                System.out.printf("\tMethod: %s%n\t\tRequestMapping: %s%n",
                                        method.getName(),
                                        Arrays.stream(method.getAnnotationsByType(RequestMapping.class))
                                                .map(RequestMapping::value)
                                                .flatMap(Arrays::stream)
                                                .collect(Collectors.joining(", ")));
                            });
                });
    }
}