Spring

Spring Boot

August 10, 2020
Spring

Spring Boot 提供了两个接口 CommandLineRunner 和 ApplicationRunner,用以当 Spring Boot 应用程序完全启动之前运行指定的代码。 CommandLineRunner @Component public class CommandLineAppStartupRunner implements CommandLineRunner { private static final Logger logger = LoggerFactory.getLogger(CommandLineAppStartupRunner.class); @Override public void run(String...args) throws Exception { logger.info("Application started with command-line arguments: {} . \n To kill this application, press Ctrl + C.", Arrays.toString(args)); } } ApplicationRunner 将参数封装为一个对象,可以调用 getOptionNames()、getOptionValues() 和 getSourceArgs() 等便捷的方法。 @Component public class AppStartupRunner implements ApplicationRunner { private static final Logger logger = LoggerFactory.getLogger(AppStartupRunner.class); @Override public void run(ApplicationArguments args) throws Exception { logger. ...