Spring Boot应用打WAR包后无法注册到Nacos的问题及解决方法

import com.alibaba.cloud.nacos.registry.NacosAutoServiceRegistration;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.ApplicationArguments;
import org.springframework.boot.ApplicationRunner;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.stereotype.Component;
import javax.management.MBeanServer;
import javax.management.ObjectName;
import javax.management.Query;
import java.lang.management.ManagementFactory;
import java.util.Set;
/**
 * 解决 Spring Boot 应用打 WAR 包后无法注册到 Nacos 的问题
 * 通过动态获取服务器端口并注册到 Nacos
 */
@Slf4j
@ConditionalOnProperty(prefix = "project.deploy", name = "mode", havingValue = "war")
@Component
public class NacosConfig implements ApplicationRunner {
    @Autowired
    private NacosAutoServiceRegistration registration;
    @Value("${server.port:8080}")
    Integer port;
    @Override
    public void run(ApplicationArguments args) {
        if (registration != null && port != null) {
            Integer serverPort = port;
            try {
                serverPort = new Integer(getServerPort());
            } catch (Exception e) {
                log.warn("getServerPort warn", e);
                log.info("getServerPort fail, use the config-file's port {}", port);
            }
            registration.setPort(serverPort);
            registration.start();
        }
    }
    /**
     * 获取实际使用的服务器端口
     */
    public String getServerPort() 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");
        log.debug("getServerPort {}", port);
        return port;
    }
}

@Slf4j
@ConditionalOnProperty(prefix = "project.deploy", name = "mode", havingValue = "war")
@Component
public class NacosConfig implements ApplicationRunner {

@Autowired
private NacosAutoServiceRegistration registration;
@Value("${server.port:8080}")
Integer port;

@Override
public void run(ApplicationArguments args) {
    if (registration != null && port != null) {
        Integer serverPort = port;
        try {
            serverPort = new Integer(getServerPort());
        } catch (Exception e) {
            log.warn("getServerPort warn", e);
            log.info("getServerPort fail, use the config-file's port {}", port);
        }
        registration.setPort(serverPort);
        registration.start();
    }
}

public String getServerPort() 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");
    log.debug("getServerPort {}", port);
    return port;
}