In my Java Script , I want to call a java method . Is it possible to call a java method by js w/o using ajax?
A:
I've been there. See http://www.apl.jhu.edu/~hall/java/Java-from-JavaScript.html
Midhat
2010-04-08 07:30:33
A:
You can't directly call Java method in javascript irrespective of Ajax present or not. Javascript is at client side.
If you are using JSP, then you can call using scriplets
<script>
....
if(somecondition) {
<%
ClassXXX.xXXX();
%>
}
....
</script>
pramodc84
2010-04-08 07:30:50
I think we need to specify the Class Name with this
harigm
2010-04-08 08:32:09
Yes corrected mistake
pramodc84
2010-04-08 08:40:59
although It calls scriplet(<% %>) code first whenever i load the page.
saloni
2010-04-08 10:46:30
@saloni Yes you are right it will call on load and only once. we can't interact between JS and Java directly
pramodc84
2010-04-08 12:07:36
@pramodc84 - your answer is premised on the assumption that there is no client-side (i.e. browser resident) Java. This is not necessarily true.
Stephen C
2010-04-09 01:38:40
+2
A:
If you are running in Rhino javascript, which is a JS engine implemented in the JVM, then yes.
If you're running a browser, the answer is almost certainly no, at least directly. You could write a Java applet to run in the browser, and you might be able to call methods in it from JavaScript.
Daniel Earwicker
2010-04-08 07:32:16
+4
A:
use Direct Web Remoting for your Javascript to Java Interaction
DWR is a Java library that enables Java on the server and JavaScript in a browser to interact and call each other as simply as possible.
DWR is Easy Ajax for Java
EDIT: as Daniel said u can use Rhino interpreter or run an applet to do the call
If you're running from a browser then there is a sandbox which has a security policy that defines and disallows calling Java Methods directly from browser.
Narayan
2010-04-08 07:36:52
'without AJAX' ? I'm not sure about the OP's motivation not to use JS, so you may want to address that.
Brian Agnew
2010-04-08 07:43:54