How to customize the stater startup process using springboot
This article will explain in detail how to use springboot to customize the stater startup process. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.
When springboot starts, it automatically loads application.properties or application.yml. How to define its own configuration and let springboot automatically recognize it:
First, let's create a new maven project and select jar as the packaging method, and then introduce the required packages.
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
Then there is configuration reading.
@ 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;}
The read configuration is injected into the bean and then loaded into the spring bean container
@ 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;}}
Finally, add the META-INF folder under the resources directory and add the spring.factories file, which specifies the full path of the class to initialize springbean.
Org.springframework.boot.autoconfigure.EnableAutoConfiguration=\ com.ruobbo.xxl.XxlAutoConfiguration
Introduce the package during use
Com.ruobbo.xxl ruobbo.xxl 0.0.1-SNAPSHOT
Then add the configuration to application.properties or application.yml
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