springboot中設定啟動類，其實就是實現了一個介面ApplicationRunner,原始碼如下：

package org.springframework.boot;

@FunctionalInterface
public interface ApplicationRunner {
    void run(ApplicationArguments var1) throws Exception;
}

自己的實現類如下：

@Component
public class InitConfig implements ApplicationRunner {
	@Override
	public void run(ApplicationArguments applicationArguments) throws Exception {
		/**
		 * 這裡可以新增一些其他邏輯，這裡只是做一個演示，具體是實現了ApplicationRunner
		 */
		System.out.println("我啟動了");

	}
}
 

啟動專案：

2018-11-30 20:09:25.407  INFO 426428 --- [           main] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'requestContextFilter' to: [/*]
2018-11-30 20:09:25.740  INFO 426428 --- [           main] o.s.s.concurrent.ThreadPoolTaskExecutor  : Initializing ExecutorService 'applicationTaskExecutor'
2018-11-30 20:09:25.984  INFO 426428 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 8080 (http) with context path ''
2018-11-30 20:09:25.988  INFO 426428 --- [           main] c.e.demo.SpringbootdemoApplication       : Started SpringbootdemoApplication in 4.335 seconds (JVM running for 5.323)
我啟動了
 

這裡只是做了簡單的輸出，可根據自己的需求進行相應的邏輯新增

原始碼git地址：https://github.com/nanrt/springbootdemo.git