如何使用springboot自定义stater启动流程

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springboot启动时自动加载application.properties或者application.yml，如何定义自己的配置让springboot自动识别：

首先我们新建一个maven工程打包方式选择jar，然后引入所需的包

4.0.0 org.springframework.boot spring-boot-starter-parent 2.1.6.RELEASE com.ruobbo.xxl ruobbo.xxl 0.0.1-SNAPSHOT jar 1.8 org.springframework.boot spring-boot-starter 2.1.6.RELEASE org.springframework.boot spring-boot-autoconfigure 2.1.6.RELEASE org.springframework.boot spring-boot-configuration-processor 2.1.6.RELEASE org.projectlombok lombok 1.18.8 provided com.xuxueli xxl-job-core 2.0.1 org.springframework.boot spring-boot-starter-test test org.junit.vintage junit-vintage-engine releases http://192.168.1.99:8081/nexus/content/repositories/releases snapshots http://192.168.1.99:8081/nexus/content/repositories/snapshots

然后是配置读取

@ConfigurationProperties(prefix = "xxl.job.executor")@Datapublic class XxlProperties { private String adminAddresses; private String appName; private String ip; private int port; private String accessToken; private String logPath; private int logRetentionDays; private String basePackages; }

将读取到的配置注入到bean中，然后加载到spring bean容器中

@Configuration@EnableConfigurationProperties(XxlProperties.class)public class XxlAutoConfiguration { private Logger logger = LoggerFactory.getLogger(XxlAutoConfiguration.class); @Resource private XxlProperties xxlProperties; @Bean(initMethod = "start", destroyMethod = "destroy") public XxlJobSpringExecutor xxlJobExecutor() { logger.info(">>>>>>>>>>> xxl-job config init."); XxlJobSpringExecutor xxlJobSpringExecutor = new XxlJobSpringExecutor(); xxlJobSpringExecutor.setAdminAddresses(xxlProperties.getAdminAddresses()); xxlJobSpringExecutor.setAppName(xxlProperties.getAppName()); xxlJobSpringExecutor.setIp(xxlProperties.getIp()); xxlJobSpringExecutor.setPort(xxlProperties.getPort()); xxlJobSpringExecutor.setAccessToken(xxlProperties.getAccessToken()); xxlJobSpringExecutor.setLogPath(xxlProperties.getLogPath()); xxlJobSpringExecutor.setLogRetentionDays(xxlProperties.getLogRetentionDays()); return xxlJobSpringExecutor; } }

最后在resources目录下添加META-INF文件夹添加spring.factories文件，文件内容为指定要初始化springbean的类全路径

org.springframework.boot.autoconfigure.EnableAutoConfiguration=\com.ruobbo.xxl.XxlAutoConfiguration

使用过程中引入包

com.ruobbo.xxl ruobbo.xxl 0.0.1-SNAPSHOT

然后添加配置到application.properties或者application.yml

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