Can't use javascript with .jsp

[aob]

When I try to use any javascript on a .jsp page I receive an error and can get my script to work.

Any comments?

alejandro

 

[petey]

What are you trying to do, use JavaScript as your server-side scripting logic, or include JavaScript as part of the server response that renders in the browser?

In the former case, You have to include a directive at the top of your document something like this:

<%@language=&quot;javascript&quot; %>

Otherwise the interpreter assumes you are using VBScript.

Petey

 

[aob]

Petey:

I have a .jsp page running fine and I want to set a link to open a new browser window (those without all the bars off). My problem is that when I insert the code to open that window (or any other javascript code) the script doesn't work and throws that dreadful error message. Everything else is ok but the javascript.

I guess I want to include javascript as part of the page that renders the browser, I'm lost .

I'll try the solution you provided me.
Any other ideas?

Please help.

Alejandro

 

[aob]

Petey:

Me again.

I tried at the top <%@script language=&quot;JavaScript&quot; %>
but the server answers with an internal server error 500, Invalid Directive.

Completely lost

Alejandro

 

[rycamor]

That's because you got it backwards. Petey was giving you the syntax to parse Javscript on the server, which would have nothing to do with opening new browser windows, or any other client-side Javscript functions. You need the second option: &quot;JavaScript as part of the server response that renders in the browser&quot;.

In other words, this should have nothing to do with JSP at all, but should just be flat text passed to the browser, just like HTML, so the browser can parse it.

I'm not familiar with JSP, but I imagine it has a print() command, or a write() command, like any other scripting language:

print(&quot;<script language=\&quot;Javascript\&quot;>window.open(\&quot;name\&quot;, \&quot;filename\&quot;,\&quot;window_options\&quot</script>&quot;

Would be the sort of syntax you are looking for, where your output is just a simple quoted string, with internal quotes escaped.

 

[petey]

I know this thread was started about eight hundred years ago, but I have run into a problem which may be the true problem aob was talking about.

In a .jsp page, text not between <% and %> is simply sent to the browser as text, allowing the browser to figure out what to do with it.

One would expect therefore that you could simply write your client-side JavaScript into your JSP and have it passed to the browser to be executed.

However I ran into a problem with this. I had a script tag in a JSP (not between any <% %> tags) and the page would generate a compilation error.

Investigation revealed that if I printed the script tag explicitly...

<% out.print(&quot;<script language=\&quot;javascript\&quot;>&quot;; %>

...or broke the script tag apart...

<scr<% %>ipt language=&quot;javascript&quot;>

...the page would compile and run as expected.

Can anybody shed light on this odd behavior? (probably should post this as new thread in a different forum)

-Petey