CommandLineRunner接口可以实现任务的自动加载，当项目启动完后，就会自动去执行CommandLineRunner接口里的run方法，你可以实现多个CommandLineRunner的实例，使用order来控制执行的顺序！

/** * 项目启动后自动运行的代码CommandLineRunner */@Component@Order(1)public class MyStartupRunner1 implements CommandLineRunner { private Logger logger = LoggerFactory.getLogger(MyStartupRunner1.class); @Override public void run(String... args) throws Exception { logger.info("MyStartupRunner1里的数据"); }}@Component@Order(2)public class MyStartupRunner2 implements CommandLineRunner { private Logger logger = LoggerFactory.getLogger(MyStartupRunner1.class); @Override public void run(String... args) throws Exception { logger.info("MyStartupRunner2里的数据"); }}

程序在启动之后，可以看到控制台的日志，它们被执行了。

2020-05-26 10:25:07.400 INFO 27788 --- [ main] .d.s.w.r.o.CachingOperationNameGenerator : Generating unique operation named: getUsingGET_1
2020-05-26 10:25:07.433 INFO 27788 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (http) with context path ''
2020-05-26 10:25:07.435 INFO 27788 --- [ main] com.lind.basic.BasicApplication : Started BasicApplication in 6.967 seconds (JVM running for 8.118)
2020-05-26 10:25:07.437 INFO 27788 --- [ main] com.lind.basic.init.MyStartupRunner1 : MyStartupRunner1里的数据
2020-05-26 10:25:07.437 INFO 27788 --- [ main] com.lind.basic.init.MyStartupRunner1 : MyStartupRunner2里的数据

总结

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