springboot项目启动后，执行一段代码

 参考原文：https://www.cnblogs.com/zuidongfeng/p/9926471.html

 方式1：implements ApplicationRunner

import org.springframework.boot.ApplicationArguments;
import org.springframework.boot.ApplicationRunner;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component;
@Component
public class ApplicationRunnerImpl implements ApplicationRunner {
    @Override
    public void run(ApplicationArguments args) throws Exception {
        System.out.println("通过实现ApplicationRunner接口，在spring boot项目启动后打印参数");
        String[] sourceArgs = args.getSourceArgs();
        for (String arg : sourceArgs) {
            System.out.print(arg + " ");
        }
        System.out.println();
    }
}

方式2：implements CommandLineRunner

spring容器加载完自动监听

第1步，实现springboot默认的监听接口，该方法在spring容器加载完自动监听

import com.sinosoft.speech.swing.Main;
import org.springframework.boot.CommandLineRunner;
import org.springframework.stereotype.Component;
/**
 * spring boot 容器加载后自动监听
  */
@Component
public class MyCommandRunner implements CommandLineRunner {
    @Override
    public void run(String... args) {
         System.out.println("开始启动1个页面");
        try {
            Runtime.getRuntime().exec("cmd   /c   start   http://localhost:8080/index");
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }
}

2.正常启动就行

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
/**
 * @author lijunming
 * @date 2018/7/22 下午2:40
 */
@SpringBootApplication
public class SpeechApplication {
 
    public static void main(String[] args) {
        SpringApplication.run(SpeechApplication.class, args);
    }
}

配置完后，运行springboot启动类，就会自动打开1个浏览器访问项目的html5页面，