how to assign javascript value to jsp variable in jsp page

Question

I have a text field, I need to send these text value to the same page which is in jsp .

I just want to assign javascript value to jsp variable.

CloudyMarble · Accepted Answer · 2011-04-19 11:24:21Z

3

You can't. JSP runs on the server, Javascript runs on the client, so when Javascript runs the JSP variable doesnt exist anymore.

Consider using AJAX.

edited Apr 19, 2011 at 11:24

answered Apr 19, 2011 at 11:16

CloudyMarble

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Comments

BalusC · Accepted Answer · 2011-04-19 13:13:55Z

2

You could set a hidden field.

Put this in your JSP form:

<input type="hidden" id="foo" name="foo" />

Execute this script whenever you want to fill the field:

document.getElementById("foo").value = "some value";

When you submit the form, it'll be available as follows in the servlet:

String foo = request.getParameter("foo"); // "some value"
// ...

1 Comment

Devashish Prasad Over a year ago

request.getParameter() takes a form element and moreover it refreshes the page, is there any other method to achieve this? If i dont wanna use ajax...

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