Java Utililty Methods Host Name Get

List of utility methods to do Host Name Get

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Description

The list of methods to do Host Name Get are organized into topic(s).

Method

InetAddressgetHostGateway()
get Host Gateway 
@SuppressWarnings("unused")
String _gateway = null, _ip = null;
if (System.getProperty("os.name").startsWith("Windows")) {
    return parseWindows();
try {
    BufferedReader reader = new BufferedReader(new FileReader("/proc/net/route"));
    String line;
...
StringgetHostInformation()
Return a string identifiying this host/user/JVM. 
String hostname = "unknown";
final InetAddress host;
try {
    host = InetAddress.getLocalHost();
    hostname = host.getHostName();
    hostname = hostname.replaceAll("\\..*", "");
} catch (Exception ignore) {
final String userName = System.getProperty("user.name");
return userName + "@" + hostname + " " + (getPid() != -1 ? "(" + getPid() + ")" : "");
StringgetHostMac(String host)
get Host Mac 
try {
    NetworkInterface network = NetworkInterface.getByInetAddress(InetAddress.getByName(host));
    byte[] mac = network.getHardwareAddress();
    StringBuilder sb = new StringBuilder();
    for (int i = 0, ci = mac.length; i < ci; i++) {
        sb.append(String.format("%02X%s", mac[i], (i < ci - 1) ? "-" : ""));
    return sb.toString();
...
StringgetHostName()
get Host Name 
String hostName = null;
try {
    InetAddress a = InetAddress.getLocalHost();
    hostName = a.getHostName();
} catch (UnknownHostException e) {
if (hostName == null) {
    boolean bFindIP = false;
...
StringgetHostname()
Return this machine's hostname, or "unknown" if unable to retrieve the name. 
try {
    java.net.InetAddress addr = java.net.InetAddress.getLocalHost();
    return addr.getHostName();
} catch (java.net.UnknownHostException ex) {
    return "unknown";
StringgetHostName()
get Host Name 
try {
    InetAddress.getLocalHost().getHostName();
    return "0.0.0.0";
} catch (UnknownHostException e) {
    e.printStackTrace();
    return "127.0.0.1";
StringgetHostName()
Gets the host name. 
try {
    final java.net.InetAddress localMachine = java.net.InetAddress.getLocalHost();
    return localMachine.getHostName();
} catch (final UnknownHostException e) {
    return "localhost";
StringgetHostname()
Returns the hostname 
if (null == _hostname) {
    try {
        _hostname = InetAddress.getLocalHost().getHostName();
    } catch (Exception e) {
        _hostname = "UNKNOWN";
return _hostname;
...
StringgetHostName()
Returns a hostname from the current host

TODO: Platform dependent 

return System.getenv().containsKey("HOSTNAME")
        ? Iterables.getFirst(DOT_SPLITTER.split(System.getenv("HOSTNAME")), getInetHost())
        : getInetHost();
StringgetHostName()
get Host Name 
InetAddress addr;
try {
    addr = InetAddress.getLocalHost();
} catch (UnknownHostException e) {
    return "localhost";
return addr.getHostName();