SpringBoot启动期间执行任务 ---＞启动期间自动执行

方式一、编写一个类实现CommandLineRunner接口

@Commponent
public class MyRunner implements CommandLineRunner {
    @Override
    public void run(String... args) throws Exception {
        System.out.println("我会在项目启动的时候运行");
    }
}

方式二、编写一个类实现ApplicationRunner接口

@Component
public class MyRunner2 implements ApplicationRunner {
    @Override
    public void run(ApplicationArguments args) throws Exception {
        System.out.println("我也随着项目启动而启动啦");
    }
}

结果：

2022-06-18 10:30:43.899  INFO 9560 --- [           main] com.lili.TestCsdnApplication             : Starting TestCsdnApplication using Java 1.8.0_151 on DESKTOP-GEUFILT with PID 9560 (D:\studySpace\idea_workspace4\testCsdn\target\classes started by YLi_Jing in D:\studySpace\idea_workspace4\testCsdn)
2022-06-18 10:30:43.903  INFO 9560 --- [           main] com.lili.TestCsdnApplication             : No active profile set, falling back to 1 default profile: "default"
2022-06-18 10:30:44.638  INFO 9560 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8080 (http)
2022-06-18 10:30:44.645  INFO 9560 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2022-06-18 10:30:44.645  INFO 9560 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet engine: [Apache Tomcat/9.0.63]
2022-06-18 10:30:44.761  INFO 9560 --- [           main] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2022-06-18 10:30:44.761  INFO 9560 --- [           main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 809 ms
2022-06-18 10:30:45.038  INFO 9560 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 8080 (http) with context path ''
2022-06-18 10:30:45.046  INFO 9560 --- [           main] com.lili.TestCsdnApplication             : Started TestCsdnApplication in 1.503 seconds (JVM running for 2.374)
我也随着项目启动而启动啦
我会在项目启动的时候运行