Get hostname from request
33,232
Solution 1
First try
System.out.println("Host = " + request.getServerName());
System.out.println("Port = " + request.getServerPort());
if doesnt work
hostName == null;
Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
{
while (interfaces.hasMoreElements()) {
NetworkInterface nic = interfaces.nextElement();
Enumeration<InetAddress> addresses = nic.getInetAddresses();
while (hostName == null && addresses.hasMoreElements()) {
InetAddress address = addresses.nextElement();
if (!address.isLoopbackAddress()) {
hostName = address.getHostName();
}
}
}
}
Solution 2
You will need to use the following function to get the remote address/hostname:
request.getRemoteHost();
Comments
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GoAlves over 4 years
I'm running my application on Windows Server 2008 on an Intranet.
To login the application tries to get the hostname from the request to validate the user. However, sometimes the application returns the IP address instead of the name and some time later, without doing anything the application is able to resolve the name and everything works fine...
This is the code I'm using to get the hostname:
InetAddress inaHost = InetAddress.getByName(request.getRemoteAddr()); String hostname = inaHost.getHostName(); System.out.println("[[ Hostname = " + hostname + " ]]");
Is this because of the Intranet configuration (DNS!?), or is something wrong with my code, or witchcraft or something?
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GoAlves over 10 yearsUnfornately, neither approach worked. The first one returned the IP address and the second one returned the hostname from where my application is running. Perhaps I didn't explain myself well. What I would like is to get the name of the remote users machine.
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constantlearner over 10 yearscan you try request.getRemoteHost()
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GoAlves over 10 yearsreturned the IP as well. but what I would really like to know is why my code works the way I want 95% of the time, and the other 5% only the IP address is returned
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constantlearner over 10 yearsPlease see my answer why it happens
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constantlearner over 10 yearsFinally i got solution to your question just try the code snippet
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user207421 over 10 yearsThis code still gets the server's own hostname(s). Your other answers ditto. Don't answer multiple times, please delete.