Mike
Divakar Satyanarayan wrote:
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-----DISCLAIMER: Information contained and transmitted by this E-MAIL is
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");
}
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