Use Multiple Parameters in Ajax with JSF Framework

On the Eclipse, create a Maven project

Click Next button and select maven-archetype-webapp

Click Next button and enter Project Information:

GroupId: LearnJSFFrameworkWithRealApps
Artifact Id: LearnJSFFrameworkWithRealApps
Package: com.demo

Click Finish button to finish create Maven project. Add Libraries and Dynamic Web Module as below:

Select project and right click, select Properties menu
Select Project Facets on left side
Select Dynamic Web Module
Select JavaServer Faces

Open web.xml file in src\main\webapp\WEB-INF folder and add configurations for JSF Framework as below:

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
	http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
	id="WebApp_ID" version="2.5">
	<display-name>LearnJSFFrameworkWithRealApps</display-name>
	<context-param>
		<param-name>javax.faces.PROJECT_STAGE</param-name>
		<param-value>Development</param-value>
	</context-param>
	<welcome-file-list>
		<welcome-file>faces/index.xhtml</welcome-file>
	</welcome-file-list>
	<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>
	<servlet-mapping>
		<servlet-name>Faces Servlet</servlet-name>
		<url-pattern>*.jsf</url-pattern>
	</servlet-mapping>
	<servlet-mapping>
		<servlet-name>Faces Servlet</servlet-name>
		<url-pattern>*.faces</url-pattern>
	</servlet-mapping>
	<servlet-mapping>
		<servlet-name>Faces Servlet</servlet-name>
		<url-pattern>*.xhtml</url-pattern>
	</servlet-mapping>
</web-app>

Open pom.xml file and add configurations for JSF Framework as below:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<groupId>com.demo</groupId>
	<artifactId>LearnJSFFrameworkWithRealApps</artifactId>
	<packaging>war</packaging>
	<version>1.0-SNAPSHOT</version>
	<name>LearnJSFFrameworkWithRealApps Maven Webapp</name>
	<url>http://maven.apache.org</url>

	<dependencies>
		<dependency>
			<groupId>com.sun.faces</groupId>
			<artifactId>jsf-api</artifactId>
			<version>2.2.8</version>
		</dependency>
		<dependency>
			<groupId>com.sun.faces</groupId>
			<artifactId>jsf-impl</artifactId>
			<version>2.2.17</version>
		</dependency>
		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>jstl</artifactId>
			<version>1.2</version>
		</dependency>
		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>servlet-api</artifactId>
			<version>2.5</version>
		</dependency>
		<dependency>
			<groupId>javax.servlet.jsp</groupId>
			<artifactId>jsp-api</artifactId>
			<version>2.1</version>
		</dependency>
		<dependency>
			<groupId>com.sun.el</groupId>
			<artifactId>el-ri</artifactId>
			<version>1.0</version>
		</dependency>
	</dependencies>

	<build>
		<finalName>LearnJSFFrameworkWithRealApps</finalName>
		<plugins>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-compiler-plugin</artifactId>
				<version>2.3.1</version>
				<configuration>
					<source>1.6</source>
					<target>1.6</target>
				</configuration>
			</plugin>
		</plugins>
	</build>
</project>

Create new package named com.demo in src/main/java folder. In this package, create new java class named DemoManagedBean.java as below:

package com.demo;

import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;

@SessionScoped
@ManagedBean(name = "demoManagedBean")
public class DemoManagedBean {

	private int number1;
	private int number2;
	private int result;

	public int getNumber1() {
		return number1;
	}

	public void setNumber1(int number1) {
		this.number1 = number1;
	}

	public int getNumber2() {
		return number2;
	}

	public void setNumber2(int number2) {
		this.number2 = number2;
	}

	public int getResult() {
		return result;
	}

	public void setResult(int result) {
		this.result = result;
	}

	public void sum() {
		this.result = this.number1 + this.number2;
	}

}

Create new xhtml file named index.xhtml in src\main\webapp as below:

<!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:ui="http://java.sun.com/jsf/facelets"
	xmlns:f="http://java.sun.com/jsf/core"
	xmlns:h="http://java.sun.com/jsf/html">

<h:head></h:head>
<body>

	<h:form prependId="false">

		<h3>Demo Ajax</h3>
		Number 1 <h:inputText id="number1" value="#{demoManagedBean.number1}"></h:inputText>
		<br></br>
		Number 2 <h:inputText id="number2" value="#{demoManagedBean.number2}"></h:inputText>
		<br></br>
		<h:commandButton value="Sum" action="#{demoManagedBean.sum()}">
			<f:ajax execute="@form" render="resultAjax" ></f:ajax>
		</h:commandButton>
		<br></br>
		Result: <h:outputText id="resultAjax" value="#{demoManagedBean.result != null ? demoManagedBean.result : ''}"></h:outputText>

	</h:form>

</body>
</html>

Select project, right click and select Run on Server menu

Access index.xhtml page with following url:

http://localhost:8080/LearnJSFFrameworkWithRealApps/faces/index.xhtml

Create Maven Project

Configure web.xml

Configure pom.xml

Create Managed Bean

Create View

Structure of Project

Run Application

Output