Get Application Server name or ip and port in Java

Question

We would like to identify and display the server and port that a Java application is running on that is behind a proxy web server. This means that getServerName() and getServerPort() return the server name of the proxy and its port (80).

We have two application server instances running on a single physical box and therefore have two active ports per box i.e. 9080, 9081. What I'd like to have is <Application Server Name>:<Application Server Port> displayed.

Any ideas? I'm a complete Java noob, sorry if this is a basic question.

Answer 1

You can use ServletRequest#getLocalXXX() methods for this.

• ServletRequest#getLocalName() returns local hostname.
• ServletRequest#getLocalAddr() returns local IP.
• ServletRequest#getLocalPort() returns local port.