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How to call JSP function through JavaScript

Raul cool
Greenhorn

Joined: Jan 23, 2009
Posts: 2
Can anybody please tell me
How to call JSP function through JavaScript
i mean Javascript tag
Bauke Scholtz
Ranch Hand

Joined: Oct 08, 2006
Posts: 2458
JSP/Java runs at the server machine. Javascript runs at the client machine.
So basically you need to fire a request to the server.

There are several ways to do it in Javascript.
1) A plain GET request using window.location.
2) A form submit using form.submit().
3) An asynchronous request using XmlHttpRequest object (Ajax).

Alternatively, if you just need a JSP/Java variable which is already available in the scope while rendering the HTML output, then you can also just let JSP print it out as a Javascript variable. E.g. var foo = '${foo}';

That said, the term "JSP function" makes me think that you wrote raw Java code as scriptlet in a JSP file. This is considered a bad practice. You should write Java code in Java classes. Use a Servlet class as port to the Java code.
Raul cool
Greenhorn

Joined: Jan 23, 2009
Posts: 2
Thanxx.. .
I hope it will work ..
 
I agree. Here's the link: http://aspose.com/file-tools
 
subject: How to call JSP function through JavaScript