java代碼擷取ip地址

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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;    }}

 

java代碼擷取ip地址