linux获取不到IP地址Java_解决linux下java代码获取不到本机ip地址

今天在部署完预生产环境的时候发现一个问题，在linux下面java代码获取本机ip地址获取不到。但是我在测试环境上面是能够获取到的。先粘下获取本机ip的代码：

try{

EnumerationallNetInterfaces = NetworkInterface.getNetworkInterfaces();

InetAddress addr = null;

while (allNetInterfaces.hasMoreElements())

{

NetworkInterface netInterface = (NetworkInterface) allNetInterfaces.nextElement();

//System.out.println(netInterface.getName());

Enumerationaddresses = netInterface.getInetAddresses();

while (addresses.hasMoreElements())

{

InetAddress ipTmp = (InetAddress) addresses.nextElement();

if(ipTmp != null && ipTmp instanceof Inet4Address

&& ipTmp.isSiteLocalAddress()

&& !ipTmp.isLoopbackAddress()

&& ipTmp.getHostAddress().indexOf(":")==-1){

addr = ipTmp;

}

}<