springBoot自动执行方法几种方式以及执行顺序

package cn.com.demo.config;

import org.springframework.boot.ApplicationArguments;
import org.springframework.boot.ApplicationRunner;
import org.springframework.boot.CommandLineRunner;
import org.springframework.stereotype.Component;
import org.springframework.web.context.ServletContextAware;

import javax.annotation.PostConstruct;
import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;


@Component
public class Preload implements ServletContextAware, ServletContextListener, ApplicationRunner, CommandLineRunner {
    
    @Override
    public void setServletContext(ServletContext servletContext) {
        System.out.println("111111111111111111111111111111111setServletContext方法");
    }

    @PostConstruct
    public static void haha(){
        System.out.println("222222222222222222222222222222222222222222222@Postcontruct’在依赖注入完成后自动调用");
    }

    
    @Override
    public void contextInitialized(ServletContextEvent sce) {
        //ServletContext servletContext = sce.getServletContext();
        System.out.println("33333333333333333333333333333333333333333执行contextInitialized方法");
    }

    
    @Override
    public void run(ApplicationArguments args) throws Exception {
        System.out.println("4444444444444444444444444444444444444444ApplicationRunner的run方法");
    }

    
    @Override
    public void run(String[] arg) throws Exception {
        System.out.println("55555555555555555555555555555555555555CommandLineRunner的run方法");
    }
}

111111111111111111111111111111111setServletContext方法
222222222222222222222222222222222222222222222@Postcontruct’在依赖注入完成后自动调用
33333333333333333333333333333333333333333执行contextInitialized方法
[ INFO ] [2021-11-26 17:35:12,166] [main] org.springframework.scheduling.concurrent.ExecutorConfigurationSupport -Initializing ExecutorService 'applicationTaskExecutor'
[ INFO ] [2021-11-26 17:35:12,383] [main] org.springframework.scheduling.concurrent.ExecutorConfigurationSupport -Initializing ExecutorService 'taskScheduler'
[ INFO ] [2021-11-26 17:35:12,437] [main] org.springframework.boot.web.embedded.tomcat.TomcatWebServer -Tomcat started on port(s): 9641 (http) with context path ''
[ INFO ] [2021-11-26 17:35:12,443] [scheduling-1] cn.com.demo.config.CompleteScheduleConfig -定时器正常加载...
[ INFO ] [2021-11-26 17:35:12,446] [main] org.springframework.boot.StartupInfoLogger -Started DemoApplication in 2.085 seconds (JVM running for 2.915)
4444444444444444444444444444444444444444ApplicationRunner的run方法
55555555555555555555555555555555555555CommandLineRunner的run方法