@SpringBootApplication(exclude={com.ebc.User.class})

package com.ebc;

import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;

//scanBasePackages 后边的值，是一个数组。即可指定多个不同的包

@SpringBootApplication(scanBasePackages = "com.yst")

public class App {

    public static void main(String[] args) {

        SpringApplication.run(App.class, args);

    }

}

package com.yst;

import org.springframework.boot.ApplicationRunner;

import org.springframework.boot.web.context.WebServerApplicationContext;

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.Configuration;

import org.springframework.web.reactive.function.server.RouterFunction;

import org.springframework.web.reactive.function.server.ServerResponse;

import reactor.core.publisher.Mono;

import static org.springframework.web.reactive.function.server.RequestPredicates.GET;

import static org.springframework.web.reactive.function.server.RouterFunctions.route;

import static org.springframework.web.reactive.function.server.ServerResponse.ok;

@Configuration

public class WebConfiguration {

    /**

     * 浏览器地址栏中输入：http://localhost:8080/hello-world，回车后，输出：Hello,World

     * @return

     */

    @Bean

    public RouterFunction<ServerResponse> helloworld() {

        return route(GET("/hello"),request->ok().body(Mono.just("Hello,遥远2"),String.class));

    }

    /**

     * 在spring boot应用启动后回调

     * @param context

     * @return

     */

    @Bean

    public ApplicationRunner runner(WebServerApplicationContext context) {

        return args -> {

            System.out.println("当前WebServer实现类为："+context.getWebServer().getClass().getName());

        };

    }

}