java中怎么获取ip地址

java中怎么获取ip地址 ，针对这个问题，这篇文章详细介绍了相对应的分析和解答，希望可以帮助更多想解决这个问题的小伙伴找到更简单易行的方法。

package com.ysma.jobs.util;import com.ysma.jobs.common.component.RedisManager;import com.ysma.jobs.common.constants.CacheKeyConstants;import com.ysma.jobs.common.dingtalk.ChatbotSend;import com.ysma.jobs.service.XxlService;import lombok.extern.slf4j.Slf4j;import org.apache.commons.lang.StringUtils;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.context.annotation.DependsOn;import org.springframework.stereotype.Component;import javax.annotation.PostConstruct;import java.net.InetAddress;import java.net.NetworkInterface;import java.net.UnknownHostException;import java.util.Enumeration;import java.util.concurrent.TimeUnit;/** * IP地址获取工具 * @Date: 2019/6/17 14:26 * modified by ysma 2019-06-28 */@DependsOn(value = {"redisManager", "chatbotSend", "xxlService"})@Component@Slf4jpublic class IpAdressUtil {    @Autowired    private ChatbotSend chatbotSend;    @Autowired    private XxlService xxlService;    @Autowired    private RedisManager redisManager;    /**定义一个static的ip变量,使得其全栈可见*/    private static volatile String MACHINE_IP;    private final String OS_WINDOWS = "windows";    private final String OS_MAC = "mac";    public String getServerIp(){        if(StringUtils.isEmpty(MACHINE_IP)){            log.error("IpAddressUtil.getServerIp 为获取到服务器ip,MACHINE_IP:{}", MACHINE_IP);            return null;        }        return MACHINE_IP;    }    /**     * 同步指定执行机器的ip地址到redis,以便所有机器共享此信息,进行协同     * @param ip ip地址     */    private void setJobRunIP(String ip){        String key = CacheKeyConstants.JOB_DEFAULT_RUN_IP;        boolean result = redisManager.set(key, ip);        log.info("IpAddressUtil.setJobRunIP set job running ip runIp:{}, result:{}" , ip, result);    }    /**     * 获取本地IP地址     * 操作系统的判断仅能判断出是何种操作系统,但是操作系统的版本就会有偏差     * 本需求仅涉及ip故忽略操作系统版本的偏差继续使用     */    @PostConstruct    public void initIp() {        //        Thread initIpThread = new Thread(() -> {            //1.本地ip地址初始化            boolean goOn = true;            do {                MACHINE_IP = getMachineIp();                try {                    goOn = StringUtils.isEmpty(MACHINE_IP);                    if(goOn){//钉钉告警直到获取到ip地址                        chatbotSend.sendMsg("请注意,scheduler应用当前未获取到ip地址! 5秒后重试");                        TimeUnit.SECONDS.sleep(5);                    }                } catch (Exception ex) {                    log.error("IpAddressUtil.initIp Exception V_V", ex);                }            } while (goOn);//直到获取到本地ip 停止            //2.分布式指定执行ip初始化            try {                String executeIps = xxlService.getExecuteIps();                String[] split = executeIps.split(",");                if(StringUtils.isEmpty(executeIps)){                    log.error("IpAddressUtil.initIp xxl未配置指定运行的ip地址信息,此处默认指定本机ip,是以最后启动的机器ip将获得执行权限");                    setJobRunIP(MACHINE_IP);                } else {                    setJobRunIP(split[0]);                }                Object runIp = redisManager.get(CacheKeyConstants.JOB_DEFAULT_RUN_IP);                log.info("IpAddressUtil.initIp 本机ip:{}, 指定运行ip:{}", MACHINE_IP,                        runIp == null ? "": runIp.toString());            } catch (Exception ex) {                log.error("IpAddressUtil.initIp Exception V_V", ex);            }        });        initIpThread.setName("init-ip-thread");        initIpThread.start();    }    /**     * 判断何种操作系统     */    private boolean isThisOS(String prefixName) {        String osName = System.getProperty("os.name");        return osName.toLowerCase().startsWith(prefixName);    }    /**     * 获取机器的IP地址     */    private String getMachineIp() {        String ipString = null;        try {            if(isThisOS(OS_WINDOWS)){                ipString = InetAddress.getLocalHost().getHostAddress();                log.info("IpAddressUtil.getMachineIp windows os, ip:{}", ipString);            } else {                Enumeration netInterfaces = NetworkInterface.getNetworkInterfaces();                boolean findFlag = false;                while (netInterfaces.hasMoreElements()) {                    if(findFlag){                        break;                    }                    NetworkInterface ni = netInterfaces.nextElement();                    Enumeration ips = ni.getInetAddresses();                    while (ips.hasMoreElements()) {                        InetAddress address = ips.nextElement();                        if( address.isSiteLocalAddress()                                && !address.isLoopbackAddress()   //127.开头的都是lookback地址                                && !address.getHostAddress().contains(":")){                            ipString = address.getHostAddress();                            findFlag = true;                            break;                        }                    }                }                log.info("IpAddressUtil.getMachineIp {} os, ip:{}",                        isThisOS(OS_MAC) ? "Mac" : "linux/unix",                        ipString);            }        } catch (Exception ex) {            log.error("IpAddressUtil.getMachineIp error", ex);        }        return ipString;    }}

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