CommandLineRunner接口可以實現任務的自動加載，當項目啟動完后，就會自動去執(zhí)行CommandLineRunner接口里的run方法，你可以實現多個CommandLineRunner的實例，使用order來控制執(zhí)行的順序！

/** * 項目啟動后自動運行的代碼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里的數據'); }}@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里的數據'); }}

程序在啟動之后，可以看到控制臺的日志，它們被執(zhí)行了。

2020-05-26 10:25:07.400 INFO 27788 --- [ main] .d.s.w.r.o.CachingOperationNameGenerator : Generating unique operation named: getUsingGET_12020-05-26 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里的數據2020-05-26 10:25:07.437 INFO 27788 --- [ main] com.lind.basic.init.MyStartupRunner1 : MyStartupRunner2里的數據

總結

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