How do i call a function within the jsp?

Hi,
What i am doing is now allow a user to type in comment and when the user click on "Add" button, it will call my function and write to a txt file.How can i call a custom jsp function within my jsp page or what is the correct way to do this?
[My current codes]
<form name="SubmitEvent" method="post" action="addComment()">
</form>
function addComment()
System.out.println("Entered Add Comment function");
Thanks for your help!

You can define a Java Bean (I presume you know the rules to write a Java Bean) and send the read value as parameter to the Bean and then call a function in the Bean from the JSP.
Contact me if you need more help!

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