In JSP page, inside a javascript function, can I place a java code using scriptlet tag?

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In JSP page, inside a javascript function, can I place a java code using scriptlet tag?

Objective: When the user is trying to close a window, I need to check whether a particular list is empty or not. If its not empty, I need to make a hibernate call to do some action.

Did Coding as below: While the user is trying to close a window, I am calling a java script function closeWind() in jsp page.

In a separate java file, in a method checkListValue(), I am doing the logic of checking the list is empty or not, and making a hibernate call if its not empty.

Inside the javascript function closeWind(), I make a call to checkListValue() method using scriptlet tag.

My doubt here is, can I call the method checkListValue() using scriptlet tag inside the javascript function closeWind().

I tried this ,checkListValue() method is not getting called, but the alerts kept inside the java script function gets executed.

Pl help how to fix this issue.

Note: I did import the java file containing checkListValue() method in the jsp page

View Answers

October 3, 2013 at 11:56 AM

Hi,

You can't run Java code on Client side. That's why you can't use Java code in closeWind() Javascript function.

What you can do is:

a) Write Ajax code in the closeWind() function for calling a Servlet/JSP on the server side.

b) You can get the data into a variable through ajax call

c) based on the value returned you can execute the relevant JavaScript.

Check: Simple Ajax Example, Developing Simple Ajax application

Thanks


October 8, 2013 at 12:07 AM

Thanks for your reply..


October 8, 2013 at 12:07 AM

Thanks for your reply..

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