Java Utililty Methods HTTP Port Find

List of utility methods to do HTTP Port Find

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Description

The list of methods to do HTTP Port Find are organized into topic(s).

Method

booleanisPortUsing(String host, int port)
Check if a port is being used in the specified host 
boolean flag = false;
try {
    InetAddress theAddress = InetAddress.getByName(host);
    Socket socket = new Socket(theAddress, port);
    flag = true;
} catch (IOException e) {
return flag;
...
booleanisPortUsing(String host, int port)
true:already in using false:not using 
boolean flag = false;
InetAddress theAddress = InetAddress.getByName(host);
try {
    Socket socket = new Socket(theAddress, port);
    flag = true;
} catch (IOException e) {
return flag;
...
booleanisReachable(final String hostName, int port, int timeout)
Checks that given hostname is reacheble in certain timeout. 
try (Socket socket = new Socket()) {
    socket.connect(new InetSocketAddress(hostName, port), timeout);
    return true;
} catch (IOException ignore) {
    return false;
booleanisReachableByPing(String host, int port)
is Reachable By Ping 
Socket ignored = null;
try {
    ignored = new Socket(host, port);
    ignored.close();
    return true;
} catch (IOException e) {
    return false;
booleanisServerListening(String host, int port)
Checks if the server is listening using the host name and the port number specified. 
Socket socket = null;
try {
    socket = new Socket(host, port);
    return true;
} catch (Exception e) {
    return false;
} finally {
    if (socket != null) {
...
booleanisServerListening(String host, int port)
is Server Listening 
try {
    Socket s = new Socket(host, port);
    return true;
} catch (Exception ex) {
return false;
booleanisServerPortFree(int port)
Check whether the specified server socket port is free or not. 
ServerSocket s;
try {
    s = new ServerSocket(port);
    s.close();
} catch (IOException e) {
    return false;
return true;
...
booleanisServing(String host, int port)
is Serving 
if (port < 0) {
    return false;
try {
    Socket socket = new Socket(host, port);
    socket.close();
    return true;
} catch (IOException e) {
...
booleanisStart(String host, int port)
is Start 
return isStart1(host, port);
booleanisStart0(String host, int port)
is Start 
boolean status = false;
Socket socket = null;
try {
    socket = new Socket(host, port);
    status = true;
    socket.close();
} catch (Exception e) {
} finally {
...