SpingCloud获取当前服务ip地址

获取方式：
@Value("${spring.cloud.client.ip-address}")

源码获取地址参考：

package org.springframework.cloud.client;

import java.util.linkedHashMap;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.context.config.ConfigFileApplicationListener;
import org.springframework.boot.context.properties.bind.Bindable;
import org.springframework.boot.context.properties.bind.Binder;
import org.springframework.boot.context.properties.source.ConfigurationPropertySources;
import org.springframework.boot.env.EnvironmentPostProcessor;
import org.springframework.cloud.commons.util.InetUtils;
import org.springframework.cloud.commons.util.InetUtils.HostInfo;
import org.springframework.cloud.commons.util.InetUtilsProperties;
import org.springframework.core.Ordered;
import org.springframework.core.env.ConfigurableEnvironment;
import org.springframework.core.env.MapPropertySource;


public class HostInfoEnvironmentPostProcessor implements EnvironmentPostProcessor, Ordered {

	// Before ConfigFileApplicationListener
	private int order = ConfigFileApplicationListener.DEFAULT_ORDER - 1;

	@Override
	public int getOrder() {
		return this.order;
	}

	@Override
	public void postProcessEnvironment(ConfigurableEnvironment environment, SpringApplication application) {
		InetUtils.HostInfo hostInfo = getFirstNonLoopbackHostInfo(environment);
		linkedHashMap map = new linkedHashMap<>();
		map.put("spring.cloud.client.hostname", hostInfo.getHostname());
		map.put("spring.cloud.client.ip-address", hostInfo.getIpAddress());
		MapPropertySource propertySource = new MapPropertySource("springCloudClientHostInfo", map);
		environment.getPropertySources().addLast(propertySource);
	}

	private HostInfo getFirstNonLoopbackHostInfo(ConfigurableEnvironment environment) {
		InetUtilsProperties target = new InetUtilsProperties();
		ConfigurationPropertySources.attach(environment);
		Binder.get(environment).bind(InetUtilsProperties.PREFIX, Bindable.ofInstance(target));
		try (InetUtils utils = new InetUtils(target)) {
			return utils.findFirstNonLoopbackHostInfo();
		}
	}

}