Java Code Examples not working | java.net.UnknownHostException

davly182
davly182 Newcomer
in DSS

Hi,

I just download "Java Code Examples" and I try to run it on my eclipse with

jdk8 and my user/login datascope.

But when I try to run this program I have this error :

java.net.UnknownHostException:
hosted.datascopeapi.reuters.com

On internet explorer I can access to it, but when I ping in windows prompt I have host unknow.

How can I do?

Do I have to ask changes for proxy/dns at my work place?

Please help.

David LY.

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Best Answer

  • Gurpreet
    Gurpreet admin
    Answer ✓

    @davly182

    From the description, it looks like your machine is behind a proxy/firewall.

    You will have to modify the DSS sample to allow for the proxy server -- something like:

    HttpHost proxy = new HttpHost(proxy_ip_address, proxy_port);
    httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);

    See Apache HTTP client for more information.

Answers

  • Lars-at-Addicticks
    Lars-at-Addicticks Expert

    It means your Java application cannot resolve "hosted.datascopeapi.reuters.com" into an IP address. It doesn't mean the address cannot be accessed, it means it cannot be resolved. Can you do a successful resolve from Windows command prompt:

    nslookup hosted.datascopeapi.reuters.com

    ??

    On my machine it returns the IP : 192.165.219.152.

  • davly182
    davly182 Newcomer

    Thanks Lars-at-Addicticks and Gurpreet.

    no IP for the commande, and I'm not administrator of my computer.

    I contacted my workplace to resolve it.

    thanks.

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