/**
 * @author shy
 * @date 2021/11/29 16:23
 */
@Component
public class NacosConfig implements ApplicationRunner {

    @Autowired(required = false)
    private NacosAutoServiceRegistration registration;

    @Value("${server.port}")
    Integer port;

    @Override
    public void run(ApplicationArguments args) {
        if (registration != null && port != null) {
            //如果getTomcatPort()端口獲取異常,就采用配置文件中配置的端口
            Integer tomcatPort = port;
            try {
                tomcatPort = new Integer(getTomcatPort());
            } catch (Exception e) {
                e.printStackTrace();
            }
            registration.setPort(tomcatPort);
            registration.start();
        }
    }

    /**
     * 獲取外置tomcat端口
     */
    public String getTomcatPort() throws Exception {
        MBeanServer beanServer = ManagementFactory.getPlatformMBeanServer();
        Set<ObjectName> objectNames = beanServer.queryNames(new ObjectName("*:type=Connector,*"), Query.match(Query.attr("protocol"), Query.value("HTTP/1.1")));
        String port = objectNames.iterator().next().getKeyProperty("port");
        return port;
    }
}

 ?<groupId>com.school</groupId>
? ? <artifactId>daniel</artifactId>
? ? <version>0.0.1-SNAPSHOT</version>
? ? <name>daniel</name>
? ? <description>student information project for Spring Boot</description>
? ? <!--打包方式，發(fā)布時(shí)使用此項(xiàng)-->
? ? <packaging>war</packaging>

? ? <properties>
? ? ? ? <java.version>1.8</java.version>
? ? </properties>

? ? <dependencies>
? ? ? ? <!--需要發(fā)布發(fā)war包時(shí)使用-->
? ? ? ? <dependency>
? ? ? ? ? ? <groupId>org.springframework.boot</groupId>
? ? ? ? ? ? <artifactId>spring-boot-starter-tomcat</artifactId>
? ? ? ? ? ? <scope>provided</scope>
? ? ? ? </dependency>

@SpringBootApplication
public class DanielApplication extends SpringBootServletInitializer {
? ? protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
? ? ? ? return builder.sources(DanielApplication.class);
? ? }
? ? public static void main(String[] args) {
? ? ? ? SpringApplication.run(DanielApplication.class, args);
? ? }
}

?<parent>
? ? ? ? <groupId>org.springframework.boot</groupId>
? ? ? ? <artifactId>spring-boot-starter-parent</artifactId>
? ? ? ? <!--<version>2.2.0.RELEASE</version>-->
? ? ? ? <version>2.1.5.RELEASE</version>
? ? ? ? <relativePath/> <!-- lookup parent from repository -->
? ? </parent>
<dependency>
? ? ? ? <groupId>org.mybatis.spring.boot</groupId>
? ? ? ? <artifactId>mybatis-spring-boot-starter</artifactId>
? ? ? ? <!-- <version>2.1.1</version>-->
? ? ? ? <version>2.0.1</version>
</dependency>