JSF not loading managed beans

1
votes

I got a simple demo project with embedded Jetty and JSF (Primefaces). The problem is that my beans are not loaded at all.

/src/main/java/HelloBean.java

import java.io.Serializable;

import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import javax.faces.bean.ApplicationScoped;
import javax.faces.bean.ManagedBean;

@ManagedBean(eager=true)
@ApplicationScoped
public class HelloBean implements Serializable {

    private static final long serialVersionUID = 1L;
    ... 

    @PreDestroy
    public void preDestroy(){
        System.out.println("PRE DESTROY");
    }

    @PostConstruct
    public void postConstruct(){
        System.out.println("POST CONSTRUCT");
    }

    public HelloBean() {
        System.out.println("Hello Bean instantiated");
    }
    ...
}

/src/main/webapp/index.xhtml

<?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:f="http://java.sun.com/jsf/core"
    xmlns:h="http://java.sun.com/jsf/html"
    xmlns:ui="http://java.sun.com/jsf/facelets"
    xmlns:p="http://primefaces.org/ui">

<h:head>
    <title>Conti Diagnose</title>
</h:head>
<h:body>
    <h:outputText value="#{helloBean.name}"/>
...

/src/main/webapp/WEB-INF/web.xml

<?xml version="1.0" encoding="ISO-8859-1" ?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
    version="2.4">

    <display-name>Archetype Created Web Application</display-name>

    <context-param>
        <param-name>javax.faces.PROJECT_STAGE</param-name>
        <param-value>Development</param-value>
    </context-param>

    <context-param>
        <param-name>primefaces.THEME</param-name>
        <param-value>dark-hive</param-value>
    </context-param>

    <listener>
        <listener-class>com.sun.faces.config.ConfigureListener</listener-class>
    </listener>

    <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>*.xhtml</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>

/src/main/webapp/WEB-INF/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>
        <locale-config>
            <default-locale>de</default-locale>
        </locale-config>
        <resource-bundle>
            <base-name>lang.lang</base-name>
            <var>msg</var>
        </resource-bundle>
    </application>
</faces-config>

The output is

2014-10-30 10:13:11.525:INFO::main: Logging initialized @164ms
2014-10-30 10:13:11.633:INFO:oejs.Server:main: jetty-9.3.0.M0
Okt 30, 2014 10:13:11 AM com.sun.faces.config.ConfigureListener contextInitialized
INFORMATION: Mojarra 2.2.8-02 ( 20140915-1602 https://svn.java.net/svn/mojarra~svn/tags/2.2.8-02@13678) für Kontext '/ui' wird initialisiert.
Okt 30, 2014 10:13:12 AM com.sun.faces.spi.InjectionProviderFactory createInstance
INFORMATION: JSF1048: PostConstruct/PreDestroy-Annotationen vorhanden.  Verwaltete Bean-Methoden, die mit diesen Annotationen markiert sind, lassen die entsprechenden Annotationen verarbeiten.
Okt 30, 2014 10:13:13 AM com.sun.faces.config.ConfigureListener$WebConfigResourceMonitor$Monitor <init>
INFORMATION: Monitoring file:/C:/.../src/main/webapp/WEB-INF/faces-config.xml for modifications
Okt 30, 2014 10:13:13 AM org.primefaces.webapp.PostConstructApplicationEventListener processEvent
INFORMATION: Running on PrimeFaces 5.1
2014-10-30 10:13:13.157:INFO:oejsh.ContextHandler:main: Started o.e.j.w.WebAppContext@538540a3{/ui,[file:///.../target/classes/../../src/main/webapp/, file:///.../target/],AVAILABLE}
2014-10-30 10:13:13.221:INFO:oejs.ServerConnector:main: Started ServerConnector@5aa85b18{HTTP/1.1}{localhost:8080}
2014-10-30 10:13:13.222:INFO:oejs.Server:main: Started @1864ms

The class to start the embedded server is /src/main/JettyRunner.java. The main method is:

InetSocketAddress address = InetSocketAddress.createUnresolved("localhost", 8080);
Server server = new Server(address);

WebAppContext wac = new WebAppContext();
wac.setContextPath("/ui");
wac.setWelcomeFiles(new String[] { "index.xhtml" });
String webappDir=JettyRunner.class.getClassLoader().getResource(".").toString();
wac.setBaseResource(new ResourceCollection(new String[] {
        webappDir+"../../src/main/webapp","./target" }));

server.setHandler(wac);
server.setStopAtShutdown(true);
server.start();
server.join();

The messages in postConstruct or the Constructor are not printed at all. Accessing a property of this bean in my xhtml gives no error and just prints nothing.

Even if I access a bean that does not exist, there's no error message.

Why are my beans not loaded?

2
jsfjsf-2embedded-jetty
Can you show your imports and your xhtml file ? - Olivier Masseau
Added it to my post. - gorootde
Just to be clear, in your bean you have private String name with getter and setter, you set some value to it (for example, in the constructor), and you access it with #{helloBean.name}? - Predrag Maric
Yes of course, it's just not included in the example above, because the "POST CONSTRUCT" doesn't even get printed. - gorootde
@k_wave You still haven't responded to my comment about the servlet specification version. You also haven't fixed the typo in the question yet and its a very important fix - if you leave it in you can be sure to get that as answers from people who don't read through all the comments. - Gimby

2 Answers

1
votes

After three days I finally found the answer myself:

Just added the line

wac.setResourceAlias("/WEB-INF/classes/", "/classes/");

to my runner class. Now everything works as expected.

-3
votes

Try adding the @Named annotation to your bean. This annotation makes the managed bean accessible through the EL. Then change 

<h:outputText value="HelloBean.name"/>

to

<h:outputText value="#{HelloBean.name}"/>

in /src/main/webapp/index.xhtml