• Subject: Re: Finding the HostName
  • From: "Frances Stewart" <francess@xxxxxxxxxx>
  • Date: Mon, 15 Jan 2001 08:20:12 -0600
  • Importance: Normal


I believe the domain name does not have to be a valid domain name.

Frances Stewart
WebSphere Application Server for iSeries 400
External: (507) 253-2795
Tie-line: 8-553-2795
IBM Rochester


"vijayakumar purushothaman" <p_vijayakumar@hotmail.com>@midrange.com on
01/15/2001 04:48:51 AM

Please respond to JAVA400-L@midrange.com

Sent by:  owner-java400-l@midrange.com


To:   JAVA400-L@midrange.com
cc:
Subject:  Re: Finding the HostName



Hello,
               Sorry for the delayed response, actually I was
Not in the office and went to my home town to celebrate the
"Pongal" festival.
          Still I could not resolve the getLocalHost()
Problem. But other function called getByName( Host name) is
Working fine, in this function I pass the Host name and it returns
The IP address.
          I checked the CHGTCPDMN there is no entry
And when I tried to configure that I don't know how to specify
The Domine name, Is my AS400 should have an internet connection?
I am not sure. Any help would be greatly appreciated.

TIA,
Vijay.



From: "Frances Stewart" <francess@us.ibm.com>
Reply-To: JAVA400-L@midrange.com
To: JAVA400-L@midrange.com
Subject: Re: Finding the HostName
Date: Wed, 10 Jan 2001 08:13:14 -0600


One way you  will get this exception is if no host name is configured under
CFGTCP, Option 12 (CHGTCPDMN)

Frances Stewart
WebSphere Application Server for iSeries 400


"vijayakumar purushothaman" <p_vijayakumar@hotmail.com>@midrange.com on
01/10/2001 02:59:25 AM

Please respond to JAVA400-L@midrange.com

Sent by:  owner-java400-l@midrange.com


To:   JAVA400-L@midrange.com
cc:
Subject:  Finding the HostName



Hello,
      I want to get the Host Name of AS/400 in my java program, but failed.
The
same program is working fine in Windows NT. Here i attached the program as
well as the error message which i get in the Qshell. Any help is greatly
appriciated.

Thanks,
Vijay.


import java.net.*;
import java.net.InetAddress.*;

public class ipadd
{
public static void main(String args[]) throws Exception
{

InetAddress a=InetAddress.getLocalHost();
System.out.println("Output of getLocalHost() ------  "+ a);
String str=a.getHostName();
System.out.println("Output of getHostName() ------  "+ str);
}
}


___________________________________________________________________________________



javac ipadd.java
$
java ipadd
java.net.UnknownHostException: empty string
       java/lang/Exception.<init>(Ljava/lang/String;)V+1
(Exception.java:45)

java/net/InetAddress.getAllByName(Ljava/lang/String;)[Ljava/net/InetAdd
ress;+11 (InetAddress.java:413)
       java/net/InetAddress.getLocalHost()Ljava/net/InetAddress;+36
(InetAddre
ss.java:509)
       ipadd.main([Ljava/lang/String;)V+1 (ipadd.java:9)
$


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