在servlet中获取tomcat IP和端口

Question

I am running multiple instances of my Servlet on 3 different tomcat instances with different ports and IP s, now I want to log which request is coming from which tomcat instance.

Any idea how can I achieve this? Thanks.

Update

I tried getServerName() from mabac answer, but it sends the host name not the ip. If I send below curl request:

curl -v  \ -H 'Host:example.com' \ 127.0.0.1:1234/ 

then the serverName is example.com

Answer 1

ServletRequest.getServerName()
ServletRequest.getServerPort()

Answer 2

In order to get the local server name and port name:

ServletRequest.getLocalName();  // pc-name
ServletRequest.getLocalAddr(); // 127.0.0.1
ServletRequest.getLocalPort();  // 1234