springboot项目启动后，自动执行需要的初始化操作

﹏ヽ暗。殇╰゛Y 2022-05-19 07:21 299阅读 0赞

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### *本篇文章拿springboot启动后，自动打开1个浏览器访问项目的html5页面来演示* ###

介绍2种方法，推荐第2种

**第一种 手动给spring加入监听任务，比较麻烦**

第1步：先写1个线程类，在springboot启动加载完，自动执行的操作放在里面

package com.sinosoft.speech.util;
    import org.springframework.stereotype.Component;
    /**
     * 需要执行的操作
     * @author lijunming
     * @date 2018/7/22 下午2:54
     */
    @Component
    public class StepExecutor implements Runnable {
        @Override
        public void run() {
            startStreamTask();
    
        }
        /**
         * 项目启动后打开1个页面
         */
        public void startStreamTask() {
            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();
            }
        }
    
    }

第2步，写1个监听器，监听项目加载完后执行指定操作

package com.sinosoft.speech.util;
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.ApplicationListener;
    import org.springframework.context.event.ContextRefreshedEvent;
    /**
     * spring boot 容器加载完成后执行
     * @author lijunming
     * @date 2018/7/22 下午3:04
     */
    public class ApplicationStartup implements ApplicationListener<ContextRefreshedEvent> {
        @Override
        public void onApplicationEvent(ContextRefreshedEvent event) {
            ApplicationContext ac = event.getApplicationContext();
            StepExecutor StepExecutor = ac.getBean(StepExecutor .class);
            Thread thread = new Thread(StepExecutor);
            thread.start();
        }
    }

第3步，给springboot的启动类添加监听任务

package com.sinosoft.speech;
    import com.sinosoft.speech.util.ApplicationStartup;
    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 springApplication = new SpringApplication(SpeechApplication .class);
            springApplication.addListeners(new ApplicationStartup());
            springApplication.run(args);
        }
    }

**第二种 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

package com.sinosoft.speech.util;
    
    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
     * @author lijunming
     * @date 2018/7/22 下午2:30
     */
    @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

package com.sinosoft.speech;
    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，效果如下

![70][]

**【SpringBoot框架篇】相关学习文章**

配套代码: [gitlab地址][gitlab]

要是觉得我写的对你有点帮助的话,麻烦在github上帮我点 \*\*Star\*\*

1.  [搭建第一个springboot项目][springboot]
2.  [Thymeleaf模板引擎实战][Thymeleaf]
3.  [优化代码,让代码更简洁高效][Link 1]
4.  [集成jta-atomikos实现分布式事务][jta-atomikos]
5.  [分布式锁的实现方式][Link 2]
6.  [docker部署,并挂载配置文件到宿主机上面][docker]
7.  [项目发布到生产环境][Link 3]
8.  [搭建自己的spring-boot-starter][spring-boot-starter]
9.  [dobbo入门实战][dobbo]
10. [API接口限流实战][API]
11. [Spring Data Jpa实战][Spring Data Jpa]
12. [使用druid的monitor工具查看sql执行性能][druid_monitor_sql]
13. [使用springboot admin对springboot应用进行监控][springboot admin_springboot]
14. [mybatis-plus实战][mybatis-plus]
15. [使用shiro对web应用进行权限认证][shiro_web]
16. [security整合jwt实现对前后端分离的项目进行权限认证][security_jwt]
17. [使用swagger2生成RESTful风格的接口文档][swagger2_RESTful]
18. [使用Netty加websocket实现在线聊天功能][Netty_websocket]
19. [使用spring-session加redis来实现session共享][spring-session_redis_session]
20. [自定义@Configuration配置类启用开关][Configuration]
21. [对springboot框架编译后的jar文件瘦身][springboot_jar]
22. [集成RocketMQ实现消息发布和订阅][RocketMQ]

[70]: /images/20220519/12863c789d534400b16b3c506b2da931.png
[gitlab]: https://github.com/Dominick-Li/springboot-master
[springboot]: https://blog.csdn.net/ming19951224/article/details/106159309
[Thymeleaf]: https://blog.csdn.net/ming19951224/article/details/106160322
[Link 1]: https://blog.csdn.net/ming19951224/article/details/106173840
[jta-atomikos]: https://blog.csdn.net/ming19951224/article/details/105753333
[Link 2]: https://blog.csdn.net/ming19951224/article/details/106205332
[docker]: https://blog.csdn.net/ming19951224/article/details/105923548
[Link 3]: https://blog.csdn.net/ming19951224/article/details/106212271
[spring-boot-starter]: https://blog.csdn.net/ming19951224/article/details/106224172
[dobbo]: https://blog.csdn.net/ming19951224/article/details/106225928
[API]: https://blog.csdn.net/ming19951224/article/details/106227451
[Spring Data Jpa]: https://blog.csdn.net/ming19951224/article/details/106308544
[druid_monitor_sql]: https://blog.csdn.net/ming19951224/article/details/106317893
[springboot admin_springboot]: https://blog.csdn.net/ming19951224/article/details/107138845
[mybatis-plus]: https://blog.csdn.net/ming19951224/article/details/107145780
[shiro_web]: https://blog.csdn.net/ming19951224/article/details/107192585
[security_jwt]: https://blog.csdn.net/ming19951224/article/details/107733689
[swagger2_RESTful]: https://blog.csdn.net/ming19951224/article/details/107741541
[Netty_websocket]: https://blog.csdn.net/ming19951224/article/details/108555917
[spring-session_redis_session]: https://blog.csdn.net/ming19951224/article/details/112758560
[Configuration]: https://blog.csdn.net/ming19951224/article/details/112759717
[springboot_jar]: https://dominick-li.blog.csdn.net/article/details/119024251
[RocketMQ]: https://dominick-li.blog.csdn.net/article/details/119523197