java.net.UnknownHostException!

>From the machine you are using to work through the tutorial, are you
even able to do this?

ping www.apache.org


It seems like you are not on the internet.  Substitute "www.apache.org"
with a web server on your own network.

If the web server is not listening on port 80 (or port 443 for "https"),
be sure to include the port in the URL.



yours,

Julius




On Thu, 2006-21-09 at 16:39 +0200, Ing. Jiří Nejedlý wrote:
> Hi, 
> I cannot make HTTPClientTutorial work. I use Oracle's JDeveloper 10.1.2. I 
> added these libraries into my project  - commons-codec-1.3.jar,  
> commons-httpclient-3.0.1.jar,  commons-logging-1.1.jar, but it still gives me 
> this error:
> 
> Fatal transport error: www.apache.org
> 
> java.net.UnknownHostException: www.apache.org
> 
>       at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:153)
> 
>       at java.net.Socket.connect(Socket.java:452)
> 
>       at java.net.Socket.connect(Socket.java:402)
> 
>       at java.net.Socket.<init>(Socket.java:309)
> 
>       at java.net.Socket.<init>(Socket.java:184)
> 
>       at 
> org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:79)
> 
>       at 
> org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:121)
> 
>       at 
> org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:706)
> 
>       at 
> org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:386)
> 
>       at 
> org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:170)
> 
>       at 
> org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:396)
> 
>       at 
> org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:324)
> 
>       at HttpClientTutorial.main(HttpClientTutorial.java:24)
> 
> 
> I am behind proxy but JDeveloper at runtime generates automatically these 
> parameters for me.
> -Dhttp.proxyHost=...   -Dhttp.proxyPort=...
> 
> So what else could be wrong ? Thanks.
> 
> ---------------------------------------------------------------------
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> 
-- 
Julius Davies
Senior Application Developer, Technology Services
Credit Union Central of British Columbia
http://www.cucbc.com/
Tel: 416-652-0183
Cel: 647-232-7571

1441 Creekside Drive
Vancouver, BC
Canada
V6J 4S7


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