Url in Jar

[Ike]

I have an html page, locally, which I can have appear in a JEditorPane:

JEditorPane helpPane;
helpPane.setPage(new File("myfile.html").toURL());

Which works fine, until I package everything up into a jar file. How can I
amend the second line of code, above, to operate if my html page,
"myfile.html", is in the jar? Thanks, Ike

 

[John McGrath]

I have an html page, locally, which I can have appear in a JEditorPane:

JEditorPane helpPane;
helpPane.setPage(new File("myfile.html").toURL());

Which works fine, until I package everything up into a jar file. How can
I amend the second line of code, above, to operate if my html page,
"myfile.html", is in the jar?

Use the Class or ClassLoader getResource() method to get the URL.

 

[Ike]

On 4/4/2005 at 7:43:18 PM, Ike wrote:

Use the Class or ClassLoader getResource() method to get the URL.

I'm doing something seriously wrong here. If I have the page AIML.htm in the
root of my jar file,, why would url1 remain null but not throw an exception?
Thanks, Ike

JEditorPane helpPane= new JEditorPane();
URL url1 = getClass().getResource("AIML.htm#section-set");
helpPane.setPage(url1);

 

[Mike Schilling]

I'm doing something seriously wrong here. If I have the page AIML.htm in
the
root of my jar file,, why would url1 remain null but not throw an
exception?
Thanks, Ike

JEditorPane helpPane= new JEditorPane();
URL url1 = getClass().getResource("AIML.htm#section-set");
helpPane.setPage(url1);

1. The resource that the classloader can find is "AIML.htm". You'll need to
append "#section-set" after finding it.

2. A agree that the Javadoc for Class.getResource() isn't very explicit
about what happens if the resource can't be found. It does say that the
call is delegated to the class's parent ClassLoader, and if you check
ClassLoader.getResource(), you'll see that it returns null if the resource
can't be found.

 

[Ike]

1. The resource that the classloader can find is "AIML.htm". You'll need to
append "#section-set" after finding it.

2. A agree that the Javadoc for Class.getResource() isn't very explicit
about what happens if the resource can't be found. It does say that the
call is delegated to the class's parent ClassLoader, and if you check
ClassLoader.getResource(), you'll see that it returns null if the resource
can't be found.

But Mike, you cannot do part #1 -- at least no way that I see to append a
string onto a URL. -Ike

 

[Mike Schilling]

But Mike, you cannot do part #1 -- at least no way that I see to append a
string onto a URL. -Ike

new URL(url1.toExternalForm() + "#section-set");

 

[Ike]

new URL(url1.toExternalForm() + "#section-set");

A yes yes! Thanks Mike. I was confused as I thought the locator (right of
'#' inclusive) was causing the URL creation to choke -- but it was the
getClass().getResource that chokes on it! Thanks so much for your help on
this! -Ike