The first thing I did was to run the sample code PostXML.java. But it gave
me a run time exception
Exception in thread "main" java.lang.IllegalArgumentException: host
parameter is null
at
org.apache.commons.httpclient.HttpConnection.<init>(HttpConnection.java:217)
at
org.apache.commons.httpclient.HttpConnection.<init>(HttpConnection.java:145)
at
org.apache.commons.httpclient.SimpleHttpConnectionManager.getConnection(Simp
leHttpConnectionManager.java:118)
at
org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:541)
at
org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:474)
at PostXML.main(PostXML.java:268)
Once the host configuration is done I could see the host & port to which it
is configured. But I am puzzled by the above exception when exceuteMethod is
invoked.
Are there any leads to the solution for the above problem.
Divakar
> -----Original Message-----
> From: Michael Becke [SMTP:[EMAIL PROTECTED]]
> Sent: Friday, January 31, 2003 7:36 PM
> To: Commons HttpClient Project
> Subject: Re: java.net.UnknownHostException
>
> Please take a look at the following URL as an example of how to use
> HttpClient to read from a server:
>
> http://cvs.apache.org/viewcvs/jakarta-commons/httpclient/src/examples/
> BasicAuthenticatonExample.java?rev=1.3&content-type=text/vnd.viewcvs-
> markup
>
> It seems that the problem is that you are attempting to read directly
> from an HttpConnection. Though this seems logical given how the
> java.net.UrlConnection works, HttpClient handles things a little
> differently. All posts, gets, etc. are done via HttpMethods like
> PostMethod and GetMethod. HttpConnection is not meant to be used
> directly.
>
> Mike
>
> On Friday, January 31, 2003, at 07:32 AM, Divakar Satyanarayan wrote:
>
> > Hi,
> >
> > I am using HTTPConnection to get a connection to an URL. It works
> > fine when
> > I give just the IP address but when I specify the full path it gives me
> > following exception
> >
> > java.net.UnknownHostException: 201.173.335.213/xxxx/xxxxx
> > at java.net.InetAddress.getAllByName0(InetAddress.java:571)
> > at java.net.InetAddress.getAllByName0(InetAddress.java:540)
> > at java.net.InetAddress.getByName(InetAddress.java:472)
> > at java.net.Socket.<init>(Socket.java:100)
> > at
> > org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.cre
> > ateSo
> > cket(DefaultProtocolSocketFactory.java:104)
> > at
> > org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:4
> > 88)
> > at TrialConnectionClient.main(TrialConnectionClient.java:237).
> >
> > What am I missing ? I've pasted the code
> >
> > HttpConnection oHttpConnection = new
> > HttpConnection(strURL,440);
> >
> > logMessage("Connected before"+
> > oHttpConnection.isOpen() );
> >
> > logMessage("Connected before"+
> > oHttpConnection.getProxyHost());
> >
> > logMessage("Connected before"+
> > oHttpConnection.getPort());
> >
> > oHttpConnection.open();
> >
> > logMessage("Connected after"+
> > oHttpConnection.isOpen() );
> >
> > RequestOutputStream oRequestOutputStream = new
> > RequestOutputStream(oHttpConnection.getRequestOutputStream(),false);
> >
> > logMessage("Output Stream ");
> >
> > strXml = "inputXml="+sbInputXML.toString();
> >
> > oRequestOutputStream.println(strXml);
> > //oRequestOutputStream.close();
> >
> > logMessage(" Input Stream ");
> >
> >
> >
> > BufferedReader oBufferedReader = new
> > BufferedReader(new
> > InputStreamReader(oHttpConnection.getResponseInputStream()));
> >
> > logMessage("Opening the input Stream");
> >
> > String line;
> >
> > System.out.println(System.currentTimeMillis());
> >
> > logMessage("Buffered Input starting to read");
> >
> > while ((line = oBufferedReader.readLine()) != null)
> > {
> > System.out.println(line);
> > sbXMLText.append(line + "\n");
> > }
> >
> >
> >
> >> Regards,
> >> Divakar
> >> ___________________________
> >> DIVAKAR SATYANARAYAN
> >> +91-80-5521701-6 Ext : 1018
> >>
> >>
> >>
> >>
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