Jean-Marc Bottin

Hi all,

I was wondering which framework are you using for developing and consuming web services.

I am a little bit confused because I don't know which framework to use:
Apache Axis2
Apache CXF
Xfire codehaus
Spring WS
and others...

Based on your experiences what do you suggest?

Regards
Jean-marc

Hi Tim,

Thank you very much for your reply. It's working with your fix.

Have a great day.

Jean-Marc

Hi all,

I have a problem with some piece of code and I cannot figure it why.
I have an url (http://www.bium.univ-paris5.fr/images/livres/41677/0001.jpg) which I can get via my browser.

However why I use some Java code to download it I get this useless error:
java.io.IOException: Server returned HTTP response code: 500 for URL: <a href="http://www.bium.univ-paris5.fr/images/livres/41677/0001.jpg" target="_blank" rel="nofollow">http://www.bium.univ-paris5.fr/images/livres/41677/0001.jpg</a> at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1245) at java.net.URL.openStream(URL.java:1009) at aTest.downloadFile(aTest.java:24) at aTest.main(aTest.java:43)


My piece of code to get this little monster to work is just below:

public class aTest { public static void downloadFile(URL url, File file) { try { InputStream in = url.openStream(); FileOutputStream out = new FileOutputStream(file); byte[] b = new byte[1024]; int len; while((len = in.read(b)) != -1) { out.write(b, 0, len); } out.close(); } catch (IOException ex) { ex.printStackTrace(); } } public static void main (String[] args){ aTest test = new aTest(); URL url; try { url = new URL("http://www.bium.univ-paris5.fr/images/livres/41677/0001.jpg"); test.downloadFile(url, new File("test.gif")); } catch (MalformedURLException ex) { ex.printStackTrace(); } } }

Do you have nay idea why it doesn't work? I am lost.

Thanks.
J-M

Thank you for your answer Marilyn.

Jean-Marc

Hi,

I have already posted a question regarding the length of the payment (its validity). Before I do the big jump (I want to join the cattle drive) I still have more questions. Some aspects of the process still a little bit unclear for me.

Do you need books (specifically Just Java 2)?
I have bought a few months ago Head First Java, this book is magic but I felt the need for something which will go more in details but still for beginners. So I bought Thinking in Java 3rd edition. Is this material (these two books plus the internet) will be enough to help me during the assignments or do I need more books?

How the assignment process is working?
I read it on the web site, do it and submit the answer. If I do it right or wrong the nitpicker will go back to me and give me feedback on the program itself plus direction to improve my programming skills?
If I get it wrong, does the nitpicker will point me to the right direction and help me understand why I get it wrong?

Thanks,
javascript: x()
Smile

Jean-Marc

Thanks for your answer.

Jean-Marc

Hi,

I would like to know, if when you are registered to the cattle drive you have deadline to submit your assignment. This could be quit difficult because I have a day job. Moreover once you have signed in, what is the duration of your payement, six motnhs, a year?


Thank you,

Jean-Marc

As bizarre as it sounds, I managed to make the code to run.
I had previously set the classpath with: c:/Sun/AppServer/jdk/lib/tools.jar
I deleted this for the system (Windows 2000 OS) and only kept the PATH : C/Sun/AppServer/jdk/bin and it works.
I still very confused ad I am worry that in a near futur I will have to modified the PATH and CLASPATH again, while I still ahve understand it properly. On the Sun web site, the infos are not clear at all. I have installed J2EE instead of JSE. Most of the infos could be found for JSE but J2EE I did not find anything clear at all.
Does somebody know why?
J-M

Thanks for the answer, it makes more sense. One more question. By path you mean the path and classpath or only the classpath, because I did'nt have any trouble with the exercises on the previous chapters.
Jean-Marc

Hi,
I just started to do some java and I just bought "Head First Java.
While I was testing the pool Puzzle exercise of the chapter 4 I had a error from (I think) the JVM.
I can compile (I still think) because when I do, javac Puzzle4.java, I get a Puzzle4.class in my folder. So I think the compilation was successful.
When I want to execute the program: java Puzzle4, I get the following message:
Exception in thread "main" java.lang.NoClass.DefFoundError: Puzzle4
What does this mean?
Here is my code:
public class Puzzle4
{
public static void main (String[] args)
{
Puzzle4b[] obs = new Puzzle4b[6];

int y = 1;
int x = 0;
int result = 0;

while ( x < 6)
{
obs[x] = new Puzzle4b();
obs[x].ivar = y;
y = y * 10;

x = x + 1;
}

x = 6;
while ( x > 0 )
{
x = x - 1;
result = result + obs[x].doStuff(x);
}

System.out.println("result " + result);
}
}
class Puzzle4b
{

int ivar;
public int doStuff( int factor )
{
if ( ivar > 100 )
{
return ivar * factor;
}
else
{
return ivar + ( 5 - factor );
}
}
}
Can somebody tell me what is going on in the java engine?
Thanks,
Jean-Marc

Hi,
I may have a stupid question but please bear in mind that I am a Java beginner. I have seen that the recommended book is "Just Java 2" in order to be prepared before the jump into the cattle drive experience.
If I want to read "Head First Java" is that a problem regarding the content and tutorial of the cattle drive ? Or could I buy both of them?
Thanks,
Jean-Marc