CODEWITHSUNDEEP
javajqueryjspservlets
palAlaa
palAlaa

Reputation: 9858

call servlet when radio button is clicked

I want to call servlet when radio button is clicked, how can I make it?

EDIT

I tried to add URL to servlet in javascript function like this

$.post( "ParentManagementServlet", "isActivated");

and like this

 $.post(<%=getServletContext().getContextPath()+"/ParentManagementServlet"%>, "isActivated");

and like this 

  $.post("/ParentManagementServlet?isActivated=true");

but both does not call servlet!

here's the url mapping of the servlet in web.xml

<servlet>
    <servlet-name>ParentManagementServlet</servlet-name>
    <servlet-class>ps.iugaza.onlineinfosys.servlets.ParentManagementServlet</servlet-class>
</servlet>
 <servlet-mapping>
    <servlet-name>ParentManagementServlet</servlet-name>
    <url-pattern>/ParentManagementServlet</url-pattern>
</servlet-mapping>

I usually add the servlet through its name, but I read that it's better to get the servlet absolute path form servlet context.

Upvotes: 0

Views: 2105

Answers (3)

BalusC
BalusC

Reputation: 1108782

As per the comments:

about fireBug, here's what returns $ is not defined

The $ is definied by jQuery. You've apparently not declared it in your page. jQuery is a JS library and not something already builtin the browser or something.

Put the following line before any other <script> in your <head>

<script src="http://code.jquery.com/jquery-latest.min.js"></script>

(you can of course also download and serve a copy from your own domain)

<script src="jquery-1.5.2.min.js"></script>

See also:

Upvotes: 1

lukastymo
lukastymo

Reputation: 26819

To call servlet in time when user select radio (without submit button) use:

  • Add appropriate mapping to your Servlet - Bind some URL to servlet.
  • use onselect attribute to call javascript function, which will redirect to the URL

example:

<input type ="radio" Value="blah blah" onSelect="yourFunction()"/>

In other situation the idea is the same: bind Servlet, choose event which will be trigger the servlet

Upvotes: 1

Bozho
Bozho

Reputation: 597114

Use ajax. For example, with jQuery:

...onclick="invokeServlet()"

function invokeServlet() {
    $.post("/path/to/servlet", params);
}

Upvotes: 1

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