HTMLEditorKit is throwing exception

Hi!

What is wrong with this code:

HTMLDocument html = new HTMLDocument();
try {
HTMLEditorKit kit = new HTMLEditorKit();
URL url = new URL("http://www.google.com/");
kit.read(new BufferedReader(new
InputStreamReader(url.openStream())), html, 0);
}
catch (Exception e) {
System.err.println("Error");
}

Exception is thrown every time. (Yes, I am connected to the Internet
and I can read from reader - I have tryed reading from new
BufferedReader(new InputStreamReader(url.openStream())) Reader and it
works.)


Mike

Mike Mimic

On Tue, 20 Apr 2004 18:37:49 +0200, Mike Mimic <>
wrote:

>Hi!
>
>What is wrong with this code:
>
>HTMLDocument html = new HTMLDocument();
>try {
> HTMLEditorKit kit = new HTMLEditorKit();
> URL url = new URL("http://www.google.com/");
> kit.read(new BufferedReader(new
> InputStreamReader(url.openStream())), html, 0);
>}
>catch (Exception e) {
> System.err.println("Error");
>}
>
>Exception is thrown every time. (Yes, I am connected to the Internet
>and I can read from reader - I have tryed reading from new
>BufferedReader(new InputStreamReader(url.openStream())) Reader and it
>works.)

What's the Exception? Just printing "error" doesn't tell you much. Try
e.printStackTrace();

--
now with more cowbell

Bryce (Work)

Hi!

Bryce (Work) wrote:
> What's the Exception? Just printing "error" doesn't tell you much. Try
> e.printStackTrace();

Good idea.

I have been reading message but it was null.

Here it is:

javax.swing.text.ChangedCharSetException
at javax.swing.text.html.parser.DocumentParser.handle EmptyTag(Unknown
Source)
at javax.swing.text.html.parser.Parser.startTag(Unkno wn Source)
at javax.swing.text.html.parser.Parser.parseTag(Unkno wn Source)
at javax.swing.text.html.parser.Parser.parseContent(U nknown Source)
at javax.swing.text.html.parser.Parser.parse(Unknown Source)
at javax.swing.text.html.parser.DocumentParser.parse( Unknown Source)
at javax.swing.text.html.parser.ParserDelegator.parse (Unknown Source)
at javax.swing.text.html.HTMLEditorKit.read(Unknown Source)
at test.main(test.java:1

Does not tell me much. Empty tag?


Mike

Mike Mimic

Mike Mimic wrote:
> Here it is:
>
> javax.swing.text.ChangedCharSetException

Mike,

When you provide a Reader to HTMLEditorKit to retrieve an HTML page,
you're giving it a character stream that isn't encoded at all. If it
encounters a meta tag in the HTML source that tries to change the
encoding, it will therefore throw an exception, because it has no way to
honor that request.

You can set a property on the document to tell it to ignore this. The
code looks like this:

doc.putProperty("IgnoreCharsetDirective", new Boolean(true));

--
www.designacourse.com
The Easiest Way to Train Anyone... Anywhere.

Chris Smith - Lead Software Developer/Technical Trainer
MindIQ Corporation

Chris Smith

Hi!

Chris Smith wrote:
> When you provide a Reader to HTMLEditorKit to retrieve an HTML page,
> you're giving it a character stream that isn't encoded at all.

Encoded to what?

How can I then encode stream so that HTMLEditorKit will be able to
change the encoding?


Mike

Mike Mimic

Mike Mimic wrote:
> Encoded to what?
>
> How can I then encode stream so that HTMLEditorKit will be able to
> change the encoding?

Though I haven't tried it, I believe you may have better luck if you
used InputStream instead of Reader. Alternatively, just set that
property.

--
www.designacourse.com
The Easiest Way to Train Anyone... Anywhere.

Chris Smith - Lead Software Developer/Technical Trainer
MindIQ Corporation

Chris Smith

Hi!

Chris Smith wrote:
> Though I haven't tried it, I believe you may have better luck if you
> used InputStream instead of Reader. Alternatively, just set that
> property.

I had only BufferStream (chained to InputStream) but it was the same.


Mike

Mike Mimic

Mike Mimic wrote:
> Chris Smith wrote:
> > Though I haven't tried it, I believe you may have better luck if you
> > used InputStream instead of Reader. Alternatively, just set that
> > property.
>
> I had only BufferStream (chained to InputStream) but it was the same.

Yep, after looking into it, turns out that the default parser just gives
up anyway, rather than switching encodings. Set that property and avoid
the whole mess.

--
www.designacourse.com
The Easiest Way to Train Anyone... Anywhere.

Chris Smith - Lead Software Developer/Technical Trainer
MindIQ Corporation

Chris Smith

Hi!

Chris Smith wrote:
> Yep, after looking into it, turns out that the default parser just gives
> up anyway, rather than switching encodings. Set that property and avoid
> the whole mess.

I have. It works now. Thanks.


Mike

Mike Mimic