Sorry, theUrl should be "http://localhost";. :-[
AbelMacAdam wrote:
>
> Hi,
>
> After a few fruitless days struggling with JSSE, I finally found
> Commons-HTTPClient. I'm trying out the example TrivialApp you can download
> from the examples directory. And that example gives me an
> IllegalArgumentException headache.
>
> The code looks like:
> static String username = "";
> static String password = "";
> static String theUrl = "localhost";
> static Logger logger;
>
> private static final void printUsage(String text)
> {
> logger.info(text);
> System.out.println (text);
> }
>
> public static void main(String[] args)
> {
> logger = Logger.getLogger(TrivialApp.class);
>
> Credentials creds = null;
> creds = new UsernamePasswordCredentials(username, password);
>
> //create a singular HttpClient object
> HttpClient client = new HttpClient();
>
> //establish a connection within 5 seconds
> client.getHttpConnectionManager().
> getParams().setConnectionTimeout(5000);
>
> //set the default credentials
> if (creds != null) {
> client.getState().setCredentials(AuthScope.ANY, creds);
> }
>
> String url = theUrl;
> HttpMethod method = null;
>
> //create a method object
> method = new GetMethod(url);
> method.setFollowRedirects(true);
>
> //execute the method
> String responseBody = null;
> try{
> client.executeMethod(method);
> responseBody = method.getResponseBodyAsString();
> } catch (HttpException he) {
> printUsage("Http error connecting to '" + url + "'");
> printUsage(he.getMessage());
> System.exit(-4);
> } catch (IOException ioe){
> printUsage("Unable to connect to '" + url + "'");
> System.exit(-3);
> }
>
> //write out the request headers
> printUsage("*** Request ***");
> printUsage("Request Path: " + method.getPath());
> printUsage("Request Query: " + method.getQueryString());
> Header[] requestHeaders = method.getRequestHeaders();
> for (int i=0; i<requestHeaders.length; i++){
> System.out.print(requestHeaders[i]);
> }
>
> //write out the response headers
> printUsage("*** Response ***");
> printUsage("Status Line: " + method.getStatusLine());
> Header[] responseHeaders = method.getResponseHeaders();
> for (int i=0; i<responseHeaders.length; i++){
> System.out.print(responseHeaders[i]);
> }
>
> //write out the response body
> System.out.println("*** Response Body ***");
> System.out.println(responseBody);
>
> //clean up the connection resources
> method.releaseConnection();
>
> System.exit(0);
> }
>
> The stack trace I got for the Exception is:
> Exception in thread "main" java.lang.IllegalArgumentException: host
> parameter is null
> at
> org.apache.commons.httpclient.HttpConnection.<init>(HttpConnection.java:206)
> at
> org.apache.commons.httpclient.HttpConnection.<init>(HttpConnection.java:155)
> at
> org.apache.commons.httpclient.SimpleHttpConnectionManager.getConnectionWithTimeout(SimpleHttpConnectionManager.java:175)
> at
> org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:153)
> at
> org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397)
> at
> org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:323)
> at TrivialApp.main(TrivialApp.java:107)
>
> Long introduction. Concluding: Am I wrong in assuming the assignment
> theURL = "localhost";
> is wrong?
>
> It is a real head scratcher. If you could point out where this goes wrong,
> I would be obliged.
>
> TIA,
> Abel
>
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