JSF/PrimeFaces with Spring

[Jehan Jaleel]

Hi,

I have a simple web app implemented with JSF/PrimeFaces. I have a dataTable for which I need to get some data..

<p:dataTable id="dta"
				value="#{adviceInquiry.adviceHeaders}" var="current"

adviceInquiry is the name of my bean which I am expecting to provide data. I defined a simple pojo and used annotations to tell that it is a component like below..

@Component("adviceInquiry")
@Scope("session")
public class AdviceInquiry implements Serializable {

    /**
	 * 
	 */
	private static final long serialVersionUID = 3536989467659965154L;
	
	private LazyDataModel><AdviceHeader> AdviceHeaders;

When I try to load my page, it gives the following error...

Servlet.service() for servlet Faces Servlet threw exception: javax.el.PropertyNotFoundException: /advice_inquiry.xhtml @16,25 value="#{adviceInquiry.adviceHeaders}": Target Unreachable, identifier 'adviceInquiry' resolved to null
	at com.sun.faces.facelets.el.TagValueExpression.getType(TagValueExpression.java:100) [jsf-impl-2.1.3-b02-jbossorg-2.jar:2.1.3-SNAPSHOT]
	at org.primefaces.component.datatable.DataTable.isLazy(DataTable.java:922) [primefaces-3.1.jar:]
	at org.primefaces.component.datatable.DataTableRenderer.encodeMarkup(DataTableRenderer.java:177) [primefaces-3.1.jar:]
	at org.primefaces.component.datatable.DataTableRenderer.encodeEnd(DataTableRenderer.java:103) [primefaces-3.1.jar:]
	at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:875) [jboss-jsf-api_2.1_spec-2.0.0.Beta1.jar:2.0.0.Beta1]

So it seems that the adviceInquiry bean is either not recognized or has been instantiated. Do I need to add it to my applicationContext file or something to make this happen?

Thanks for any help.

[Mark Spritzler]

You have to integrate JSF with Spring

Here is that documentation.
http://static.springsource.org/spring/docs/3.0.x/spring-framework-reference/html/web-integration.html#jsf

Once that is done, then you can use your Spring beans as backing beans on JSF pages.

Mark

[Jehan Jaleel]

Hi Mark,

Thanks for taking the time to respond.

I do have the EL Resolver in my faces config file...

<application>
<el-resolver>org.springframework.web.jsf.el.SpringBeanFacesELResolver</el-resolver>
</application>

Do I need to do anything more than this? Becuz it still gives the same error.

Thanks again.

[Jehan Jaleel]

I figured it out, I had to activate component scanning for Spring.

When I inserted this line into my applicationContext.xml it works...

<context:component-scan base-package="com.wu.settlement" />

[Jehan Jaleel]

Just a follow up question on this, I would just like to know what are the advantages of using PrimeFaces/JSF with Spring. After all JSF provides its own container and MVC like front end framework, so why use Spring at all?

Thanks.

[Mark Spritzler]

Jehan Jaleel wrote:Just a follow up question on this, I would just like to know what are the advantages of using PrimeFaces/JSF with Spring. After all JSF provides its own container and MVC like front end framework, so why use Spring at all?

Thanks.

Spring Framework is an application framework not a web framework. JSF is a web framework. Spring MVC is Spring's Web container.

Spring framework goes way beyond just a web framework. It can be used for any application.

JSF also has many issues. Some of us think the 6 phases are complete overkill and makes JSF complicated to get working correct.

Mark