DWR: Easy AJAX for JAVA

DWR is a Java open source library which helps developers wanting to write web sites that include AJAX technology. It allows code in a web browser to use Java functions running on a web server as if it was in the browser.

It comprises 2 main parts: Code to allow JavaScript to retrieve data from a servlet based web-server using AJAX principles. And a JavaScript library that makes it easier for the web-site developer to dynamically update the web page with the retrieved data.
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