Getting server address and application name

Question

Environment: NetBeans 6.9.1, GlassFish 3.1

I have a Java Web Application. How to get the server address and the application name dynamically? The '2in1' solution would be the best for me: http://localhost:8080/AppName/.

Is there a practical way to get that information?

Let's say the value of AppName will be fixed, so I only need the host address. Is it possible to retrieve it via JMX? Any other ways?

score 32 · Accepted Answer · edited Apr 19 '17 at 14:22

32

The HttpServletRequest object will give you what you need:

HttpServletRequest#getLocalAddr(): The server's IP address as a string
HttpServletRequest#getLocalName(): The name of the server receiving the request
HttpServletRequest#getServerName(): The name of the server that the request was sent to
HtppServletRequest#getLocalPort(): The port the server received the request on
HttpServletRequest#getServerPort(): The port the request was sent to
HttpServletRequest#getContextPath(): The part of the path that identifies the application

edited Apr 19 '17 at 14:22

cassiomolin

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answered Apr 13 '11 at 11:14

Simon G.

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@Ging3r No. It is not. Perhaps you should heed your own advice about paying attention and read the appropriate documentation? – Simon G. Nov 14 '12 at 23:05
What does that pound sign in method name mean? I've never seen it before. – Scott Chu May 24 '18 at 06:24
@ScottChu - I honestly cannot remember where I copied the above from 5 years ago. I agree that the "HttpServletRequest#" prefix is unusual and unnecessary. – Simon G. May 24 '18 at 14:42
ClassName#MethodName is a notation used in JavaDoc, for example within @see tag. – predrags Jun 19 '19 at 09:44

score 3 · Answer 2 · edited May 31 '17 at 18:58

3

Inside a servlet you can get it like this

public static String getUrl(HttpServletRequest request) {
    return request.getRequestURL().toString();
}

edited May 31 '17 at 18:58

Renato Pradebon

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answered Apr 13 '11 at 07:46

Jim Blackler

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That gives the full request url, and not just the context path. – Joachim Sauer Apr 13 '11 at 07:47

Getting server address and application name

2 Answers2

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