java 获取IP地址(要是安装了虚拟机之类的软件可能不准确)

/**
* 多IP处理，可以得到最终ip
*
* @return
*/
public String getIP() {
String localip = null;// 本地IP，如果没有配置外网IP则返回它
String netip = null;// 外网IP
try {
Enumeration<NetworkInterface> netInterfaces = NetworkInterface.getNetworkInterfaces();
InetAddress ip = null;
boolean finded = false;// 是否找到外网IP
while (netInterfaces.hasMoreElements() && !finded) {
NetworkInterface ni = netInterfaces.nextElement();
Enumeration<InetAddress> address = ni.getInetAddresses();
while (address.hasMoreElements()) {
ip = address.nextElement();
if (!ip.isSiteLocalAddress() && !ip.isLoopbackAddress() && ip.getHostAddress().indexOf(":") == -1) {// 外网IP
netip = ip.getHostAddress();
finded = true;
break;
} else if (ip.isSiteLocalAddress() && !ip.isLoopbackAddress() && ip.getHostAddress().indexOf(":") == -1) {// 内网IP
localip = ip.getHostAddress();
}
}
}
} catch (SocketException e) {
logger.error("获取本机IP异常", e);
}
if (netip != null && !"".equals(netip)) {
return netip;
} else {
return localip;
}
}