import java class in js

I have a html website and I am using JavaScript. I have a java Class transformation.java with a method convert(a,b) that I would like use in the javascript in my html document. How can I import the java class in my jav开发者_运维百科a script and use the method convert(a,b)?

Thanks.

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Javascript != Java. You cannot import a java class in javascript. The languages are different (despite the names). You need to port the code.

Unless, you want to expose the java code as a servlet and have the javascript invoke it via an AJAX request.

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1. Write your self same logic in java script
2. Make a server call to your java function using Javascript using DWR

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You can't. :) You should check out applets. Java Applets