Java获取主机IP地址，自动区分Windows和Linux

时间：2010-07-21 来源：云少嘎嘎嘎

import java.net.InetAddress;
import java.net.NetworkInterface;
import java.util.Enumeration; public class OSUtil { /**
* 判断当前操作是否Windows.
*
* @return true---是Windows操作系统
*/
public static boolean isWindowsOS(){
boolean isWindowsOS = false;
String osName = System.getProperty("os.name");
if(osName.toLowerCase().indexOf("windows")>-1){
   isWindowsOS = true;
}
return isWindowsOS;
}

/**
* 获取本机IP地址，并自动区分Windows还是Linux操作系统
* @return String
*/
public static String getLocalIP(){
String sIP = "";
InetAddress ip = null;
try {
   //如果是Windows操作系统
   if(isWindowsOS()){
    ip = InetAddress.getLocalHost();
   }
   //如果是Linux操作系统
   else{
    boolean bFindIP = false;
    Enumeration<NetworkInterface> netInterfaces = (Enumeration<NetworkInterface>) NetworkInterface
      .getNetworkInterfaces();
    while (netInterfaces.hasMoreElements()) {
     if(bFindIP){
      break;
     }
     NetworkInterface ni = (NetworkInterface) netInterfaces.nextElement();
     //----------特定情况，可以考虑用ni.getName判断
     //遍历所有ip
     Enumeration<InetAddress> ips = ni.getInetAddresses();
     while (ips.hasMoreElements()) {
      ip = (InetAddress) ips.nextElement();
      if( ip.isSiteLocalAddress()
                 && !ip.isLoopbackAddress()   //127.开头的都是lookback地址
                 && ip.getHostAddress().indexOf(":")==-1){
          bFindIP = true;
             break;
         }
     }     }
   }
}
catch (Exception e) {
   e.printStackTrace();
} if(null != ip){
   sIP = ip.getHostAddress();
}
return sIP;
}
//如果不能满足要求，请留言并说明情况
public static void main(String[] args) {
String serverIP = OS.getLocalIP();
System.out.println("serverIP:::" + serverIP);
}
} 本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/wts/archive/2009/12/17/5027168.aspx

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