Java Utililty Methods Local Host Get

List of utility methods to do Local Host Get

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Description

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

Method

StringgetLocalHostName()
get Local Host Name 
try {
    return (InetAddress.getLocalHost()).getHostAddress();
} catch (UnknownHostException uhe) {
    String host = uhe.getMessage();
    if (host != null) {
        int colon = host.indexOf(':');
        if (colon > 0) {
            return host.substring(0, colon);
...
StringgetLocalHostName()
get Local Host Name 
try {
    InetAddress addr = InetAddress.getLocalHost();
    return addr.getHostName();
} catch (Exception e) {
    return "";
StringgetLocalhostName()
get Localhost Name 
String property = System.getProperty(OVERWRITE_HOSTNAME_SYSTEM_PROPERTY);
if (property != null && property.trim().length() > 0) {
    return property;
try {
    return InetAddress.getLocalHost().getHostName();
} catch (final UnknownHostException e) {
    throw new RuntimeException("unable to retrieve localhost name");
...
StringgetLocalHostName()
Retrieves the local host's hostname. 
try {
    final String canonicalHostName = InetAddress.getLocalHost().getCanonicalHostName();
    if (isFQDN(canonicalHostName)) {
        return canonicalHostName;
    } else {
        return InetAddress.getLocalHost().getHostName();
} catch (UnknownHostException e) {
...
StringgetLocalHostName()
When using the java.net.InetAddress#getHostName() method in an environment where neither a proper DNS lookup nor an /etc/hosts entry exists for a given host, the following exception will be thrown:

java.net.UnknownHostException: <hostname>: <hostname> at java.net.InetAddress.getLocalHost(InetAddress.java:1425) ... 

try {
    return (InetAddress.getLocalHost()).getHostName();
} catch (UnknownHostException uhe) {
    String host = uhe.getMessage(); 
    if (host != null) {
        int colon = host.indexOf(':');
        if (colon > 0) {
            return host.substring(0, colon);
...
StringgetLocalHostName()
Best attempt to get the local hostname, with or without the existence of a DNS entry 
String localHostName = null;
try {
    InetAddress addr = InetAddress.getLocalHost();
    localHostName = addr.getHostName();
} catch (UnknownHostException uhe) {
    String host = uhe.getMessage();
    if (host != null) {
        return host.substring(0, host.indexOf(':'));
...
StringgetLocalHostname()
get Local Hostname 
if (localHostName_ == null)
    try {
        localHostName_ = InetAddress.getLocalHost().getHostName();
    } catch (UnknownHostException e) {
return localHostName_;
StringgetLocalHostName(boolean includeDomain)
get Local Host Name 
try {
    String hostname = InetAddress.getLocalHost().getHostName();
    return includeDomain ? hostname
            : hostname.indexOf(".") != -1 ? hostname.substring(0, hostname.indexOf(".")) : hostname;
} catch (Exception ex) {
    return "UNKNOWN HOST";
StringgetLocalHostName(boolean useHostname)
get Local Host Name 
String hostname;
try {
    if (useHostname) {
        hostname = InetAddress.getLocalHost().getHostName();
    } else {
        hostname = InetAddress.getLocalHost().getHostAddress();
} catch (UnknownHostException uhe) {
...
String[]getLocalHostNames()
get Local Host Names 
final Set<String> hostNames = new HashSet<String>();
hostNames.add("localhost");
try {
    final Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();
    for (final Enumeration<NetworkInterface> ifaces = networkInterfaces; ifaces.hasMoreElements();) {
        final NetworkInterface iface = ifaces.nextElement();
        InetAddress ia = null;
        for (final Enumeration<InetAddress> ips = iface.getInetAddresses(); ips.hasMoreElements();) {
...