Passing variable from JSP to Javascript

Question

I know there is already questions about that, but I just can´t simply get this work, I have a JSP file with a java variable in it:

String test = "Hello";

And I need to read this value in the Javascript embedded in the same JSP file, I tried so many options, but it is not working, and for security I don't want pass the value using the URL or hidden values.

Any ideas of how get this working?

Answer 1

I know this one is old, but this worked for me:

var javaScriptVar="<%out.print(javaString);%>";

you need to make sure that if you are using an external js file (out of the jsp file), the above line has to be before the "include" script tag. for example this is the jsp file:

var javaScriptVar="<%out.print(javaString);%>";
<script src="some_location/test.js"></script>