index.xhtml :
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<?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"
xmlns:p="http://primefaces.prime.com.tr/ui">
<h:head>
<title>Facelet Title</title>
</h:head>
<h:body>
<h:inputText id="firstname" value="#{bean.firstname}">
<p:ajax event="keyup" update="out" />
</h:inputText>
<h:outputText id="out" value="#{bean.firstname}" />
</h:body>
</html>
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/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package web;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
/**
*
* @author mouadh
*/
@ManagedBean(name="bean")
@SessionScoped
public class bean {
private String firstname;
/** Creates a new instance of bean */
public bean() {
}
/**
* @return the firstname
*/
public String getFirstname() {
return firstname;
}
/**
* @param firstname the firstname to set
*/
public void setFirstname(String firstname) {
this.firstname = firstname;
}
}
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<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
<context-param>
<param-name>javax.faces.PROJECT_STAGE</param-name>
<param-value>Development</param-value>
</context-param>
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>/faces/*</url-pattern>
</servlet-mapping>
<session-config>
<session-timeout>
30
</session-timeout>
</session-config>
<welcome-file-list>
<welcome-file>faces/index.xhtml</welcome-file>
</welcome-file-list>
</web-app>