Return Object from Ajax in JSF Framework

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23 Apr, 2018 Categories: JSF


Create Maven Project

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:

  1. Select project and right click, select Properties menu
  2. Select Project Facets on left side
  3. Select Dynamic Web Module
  4. Select JavaServer Faces

Configure web.xml

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>

Configure pom.xml

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>




Entity Class

Create new package, named com.entities. In this package, create a entity class: Product.java

Product.java

package com.entities;

public class Product {

	private String id;
	private String name;
	private double price;

	public String getId() {
		return id;
	}

	public void setId(String id) {
		this.id = id;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public double getPrice() {
		return price;
	}

	public void setPrice(double price) {
		this.price = price;
	}

	public Product(String id, String name, double price) {
		this.id = id;
		this.name = name;
		this.price = price;
	}

	public Product() {
	}

}

Create Managed Bean

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;
import com.entities.Product;

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

	private Product product = null;

	public Product getProduct() {
		return product;
	}

	public void setProduct(Product product) {
		this.product = product;
	}

	public void display() {
		this.product = new Product("p01", "name 1", 20);
	}

}




Create View

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"
	xmlns:c="http://java.sun.com/jsp/jstl/core">

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

	<h:form prependId="false">

		<h3>Demo Ajax</h3>
		<h:commandButton value="Product Info" action="#{demoManagedBean.display()}">
			<f:ajax render="resultAjax"></f:ajax>
		</h:commandButton>
		<br></br>
		<h:panelGroup id="resultAjax">
			<c:if test="#{demoManagedBean.product != null}">
				Id: #{demoManagedBean.product.id}
				<br></br>
				Name: #{demoManagedBean.product.name}
				<br></br>
				Price: #{demoManagedBean.product.price}
			</c:if>
		</h:panelGroup>

	</h:form>

</body>
</html>

Structure of Project

Run Application

Select project, right click and select Run on Server menu

Access index.xhtml page with following url:

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

Output


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