can we call a java method by js?

In my Java Script , I want to call a java m开发者_JS百科ethod . Is it possible to call a java method by js w/o using ajax?

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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

Examples

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.

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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.

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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>