public class IpTool {
public static void main(String[] args) {
IpTool ipTool=new IpTool();
System.out.println(ipTool.getLocalIP());
}
/**
*
* 判斷當前操作是否Windows.
*
* @return true---是Windows操作系統
*/
private boolean isWindowsOS() {
boolean isWindowsOS = false;
String osName = System.getProperty("os.name");
if (osName.toLowerCase().indexOf("windows") > -1) {
isWindowsOS = true;
}
return isWindowsOS;
}
/**
*
* 獲取本機IP地址，並自動區分Windows還是Linux操作系統
*
*
*
* @return String
*/
public String getLocalIP() {
String sIP = "";
InetAddress ip = null;
try {
// 如果是Windows操作系統
if (isWindowsOS()) {
ip = InetAddress.getLocalHost();
}
// 如果是Linux操作系統
else {
boolean bFindIP = false;
Enumeration<NetworkInterface> netInterfaces = (Enumeration<NetworkInterface>) NetworkInterface
.getNetworkInterfaces();
while (netInterfaces.hasMoreElements()) {
if (bFindIP) {
break;
}
NetworkInterface ni = (NetworkInterface) netInterfaces
.nextElement();
// ----------特定情況，可以考慮用ni.getName判斷
// 遍歷所有ip
Enumeration<InetAddress> ips = ni.getInetAddresses();
while (ips.hasMoreElements()) {
ip = (InetAddress) ips.nextElement();
if (ip.isSiteLocalAddress() && !ip.isLoopbackAddress() // 127.開頭的都是lookback地址
&& ip.getHostAddress().indexOf(":") == -1) {
bFindIP = true;
break;
}
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
if (null != ip) {
sIP = ip.getHostAddress();
}
return sIP;
}
}
