Get own IP address in a java class invoked by a Session Bean

Question

Suppose I have a statefull session bean B, which creates some POJO A. How can I inside one of the A's methods obtain the IP(and hostname) of the Java EE server which manages the session bean B?

PS. If this is not possible, then how could I do the same in B itself?

Duplicate of [another question][1] [1]: http://stackoverflow.com/questions/494465/how-to-enumerate-ip-addresses-of-all-enabled-nic-cards-from-java — Eugene Kuleshov, Mar 27 '12 at 18:17
No duplicate. They parse the results of ipconfig/use InetAddress. I'm talking about getting the info from a J2EE server container(-s) which run this application. — azerIO, Mar 27 '12 at 18:19
I don't think there is a generic API. But you could try to look at the JMX attributes exposed by your J2EE container. — Eugene Kuleshov, Mar 27 '12 at 18:21
Sure, if you know the IP, you can inject it as a string attribute into your beans. :) — Eugene Kuleshov, Mar 27 '12 at 18:40

score 2 · Answer 1 · answered Mar 27 '12 at 23:08

2

In jboss 7 (as well as all the other jboss servers at least from 4.x on).

You have a property file that holds the bind ip.

I think in jboss 7.1 is called:

jboss.bind.address

And in theory can be accessed by using System.getProperty

Regards

PS: Needless to say, this is always local to the jvm, so no remote invocation unless you provide some sort of api for it, or the jboss folks already build a remote api for this.

answered Mar 27 '12 at 23:08

feniix

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When bound to 0.0.0.0 it will output exactly that value (i.e. if I run the server using ./standalone -b 0.0.0.0) + it is J2EE server specific. – azerIO Mar 28 '12 at 08:28
I tend to bind to specific IPs in the box (that are also not the primary IP of the box) I do not like using port offsets. – feniix Mar 28 '12 at 14:19

score 0 · Answer 2 · answered Mar 31 '12 at 07:54

0

You could use java.net.InetAddress#getLocalHost for this.

E.g.

InetAddress host = InetAddress.getLocalHost();
byte[] rawIP = host.getAddress();
String name = host.getHostName();
// etc

answered Mar 31 '12 at 07:54

Arjan Tijms

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Nope, there might be several interfaces with several IPs on the machine. How should I know that a given IP is the one my J2EE server listens on? – azerIO Apr 04 '12 at 09:48

Get own IP address in a java class invoked by a Session Bean

2 Answers2