I have done JSF work before, but am new to RichFaces. To test my set up and environment, etc. I have tried to make just a simple little app where the user enters two numbers, clicks a button, and the app returns the sum and product of the numbers.
Here’s the code summary:
web.xml
<?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>eSPAR</display-name>
<welcome-file-list>
<welcome-file>index.html</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>*.jsf</url-pattern>
</servlet-mapping>
<context-param>
<param-name>javax.faces.DEFAULT_SUFFIX</param-name>
<param-value>.xhtml</param-value>
</context-param>
<!-- Plugging the skin into the project -->
<context-param>
<param-name>org.richfaces.SKIN</param-name>
<param-value>deepMarine</param-value>
</context-param>
<!-- Making the RichFaces skin spread to standard HTML controls -->
<context-param>
<param-name>org.richfaces.CONTROL_SKINNING</param-name>
<param-value>enable</param-value>
</context-param>
</web-app>
Next:
faces-config.xml
<?xml version="1.0" encoding="UTF-8"?>
<faces-config 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-facesconfig_2_0.xsd"
version="2.0">
<application></application>
</faces-config>
In other words, basically empty except for the version declarations. Next comes the view page:
addmult.xhtml
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<f:view xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:a4j="http://richfaces.org/a4j"
xmlns:rich="http://richfaces.org/rich">
<h:head>
</h:head>
<h:body>
<rich:panel header="Sample Add and Multiply App">
<h:form id="addmultForm">
<p>Enter one number here:
<rich:inputNumberSpinner id="num1" minValue="0"
value="# {calcBean.number1}" /></p>
<p>Enter another number here:
<rich:inputNumberSpinner id="num2" minValue="0"
value="#{calcBean.number2}" /></p>
<a4j:commandButton value="Go" action="#{calcBean.go}" immediate="true">
<f:ajax event="click" render="results" />
</a4j:commandButton>
<br /><br />
<h:panelGroup id="results">
<h:panelGroup rendered="#{calcBean.calcDone}">
<p>The sum of your two numbers is: #{calcBean.sum}</p>
<p>The product of your two numbers is: #{calcBean.product}</p>
</h:panelGroup>
</h:panelGroup>
</h:form>
</rich:panel>
</h:body>
</f:view>
Now finally the bean:
CalcBean.java
import javax.faces.bean.ManagedBean;
@ManagedBean
public class CalcBean {
private Integer number1 = 3;
private Integer number2 = 7;
private int sum;
private int product;
private boolean calcDone = false;
public Integer getNumber1() {
System.out.println("I am number1: " + number1);
return number1;
}
public void setNumber1(Integer number1) {
System.out.println("Change in number1");
this.number1 = number1;
}
public Integer getNumber2() {
return number2;
}
public void setNumber2(Integer number2) {
this.number2 = number2;
}
public int getSum() {
return sum;
}
public int getProduct() {
return product;
}
public boolean isCalcDone() {
System.out.println("Returning calcDone: " + calcDone);
return calcDone;
}
public String go() {
System.out.println("Going!");
sum = number1 + number2;
product = number1 * number2;
calcDone = true;
return null;
}
}
My WEB_INF lib contains: commons-beanutils-1.8.3, commons-collections-3.2.1, commons-digester-2.1, commons-logging-1.1.1, cssparser-0.9.5, guava-r08, jhighlight-1.0, jsf-api (mojarra 2.0 version), jsf-facelets-1.1.15, jsf-impl (again mojarra 2.0), richfaces-components-api-4.0.0-FINAL, richfaces-components-ui-4.0.0-FINAL, richfaces-core-api-4.0.0-FINAL, richfaces-core-impl-4.0.0-FINAL, sac-1.3, standard.
Whatever values I initiate the Integers number1 and number2, those are the values initially in the inputs when the page loads. The lower text is initially hidden. When the “Go” button is clicked, the lower panel appears, but no matter what values the user has entered, the sum is always 10 and the product always 21 (as shown).
The sysout in the setter never displays. The one in the getter displays once when the page loads. When “Go” is clicked, the sysout “Going!” shows once, then “Returning calcDone: true” shows six times.
What I have tried: Changing the scope of the bean. Wrapping the expressions in the results panel in <h:outputText>. Adding the FaceletViewHandler in web.xml (actually causes more problems). Removing the facelet jar file from the lib.
Do I need a value change listener on the inputs? What else should I try?
Remove
immediate="true". It will cause the inputs which do not haveimmediate="true"to be completely skipped in processing. Also remove<f:ajax>as<a4j:commandButton>already uses ajax. To get a better understanding whatimmediatedoes and what you need it for, I suggest you to get yourself through this article : Debug JSF lifecycle (yes, it’s JSF 1.2 targeted, but general concept applies on JSF 2.x as well)Here’s a summary of relevance:
So, you ultimately want this:
Unrelated to the concrete problem: there are more pretty serious problems in your configuration. I have the impression that you’re reading JSF 1.x and RichFaces 3.x targeted tutorials/documentation instead of JSX 2.x and RichFaces 4.x targeted ones. The first
<context-param>is mandatory for JSF 1.x Facelets only and the remnant is all specific to RichFaces 3.x. Remove them all. You also have an offending JSF 1.xjsf-facelets.jarfile which should be removed as well as JSF 2.x already bundles a JSF 2.x Facelets implementation.