JSF allows us to easily implement Ajax (Asynchronous JavaScript and XML) functionality into our web applications by simply employing the <f:ajax> tag and CDI named beans, without needing to implement any JavaScript code or having to parse JSON strings to implement Ajax with JSF.
The following illustrates a typical usage of the <f:ajax> tag:
<?xml version='1.0' encoding='UTF-8' ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:h="http://java.sun.com/jsf/html" xmlns:f="http://java.sun.com/jsf/core"> <h:head> <title>JSF Ajax Demo</title> </h:head> <h:body> <h2>JSF Ajax Demo</h2> <h:form> <h:messages/> ...
