获取请求ip的工具类

import java.net.InetAddress;

import java.net.NetworkInterface;

import java.net.SocketException;

import java.util.Enumeration;

private static 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) {// 内网IP

localip = ip.getHostAddress();

}

}

}

} catch (SocketException e) {

e.printStackTrace();

}

if (netip != null && !"".equals(netip)) {

return netip;

} else {

return localip;

}

}