Richfaces and Ajax returns redirect?

**mrpack** · Jul 6th, 2009, 05:58 AM

Hi,

I am trying to use a4j and richfaces so I can render part of the page in response to an ajax call. I am able to render fragments using sf:commandLink, passing an action and using <render fragments=activeStateOutput/> in my transitions but I cannot acheive the same using A4J (I need this to support richfaces ajax functionality - i.e. rich:dataScroller).

Perhaps I am not correctly understanding the process but after I click on my a4j enabled link, the ajax call is made, the correct transition is called (using action=showActiveState) but the response coming back from the server contains nothing except an ajax redirect instruction. This causes the brower window to redirect to the url returned by the server.

Here is my transition

Code:

<transition on="showActiveState">
			<evaluate expression="proposal.addPublication(null)"/>
			<render fragments="activeStateOutput"/>
		</transition>

Here is my xhtml definition

Code:

<a4j:outputPanel id="activeStateOutput">
			<div id="activeStateDiv">
				<h:form id="activeStateForm">
					<h:outputText value="#{proposal.activeState}"/>
					<h:inputText value="#{proposal.activeState}"/>
					<a4j:commandLink id="update" value="Update" reRender="#{flowRenderFragments}" action="showActiveState"/>
				</h:form>	
			</div>
		</a4j:outputPanel>

Here is the generated javascript on my link

Code:

A4J.AJAX.Submit('_viewRoot','activeStateForm',event,{'similarityGroupingId':'activeStateForm:update','parameters':{'activeStateForm:update':'activeStateForm:update'} ,'actionUrl':'/duo/proposal/create?execution=e12s1'} );return false;

Here is the response:

Code:

<?xml version="1.0" encoding="UTF-8"?>
<html xmlns="http://www.w3.org/1999/xhtml"><head><meta name="Ajax-Response" content="redirect" /><meta
 name="Location" content="/duo/proposal/create?execution=e12s1" /></head></html>

Is this the expected response?

I was hoping to be able to partially replace the page according to #{flowRenderFragments}. In this instance it should reRender activeStateOutput

I am using Richfaces 3.3.1 and webflow 2.0.7.

**mrpack** · Jul 6th, 2009, 06:31 AM

Ok well I just fixed this. I had both

HTML Code:

<bean class="org.springframework.webflow.mvc.servlet.FlowHandlerAdapter">
        <property name="flowExecutor" ref="flowExecutor"/>
<property name="ajaxHandler">
            <bean class="org.springframework.faces.richfaces.RichFacesAjaxHandler"/>
        </property>
    </bean>

and

HTML Code:

<bean id="flowController" class="org.springframework.webflow.mvc.servlet.FlowController">
        <property name="flowExecutor" ref="flowExecutor" />
        <property name="ajaxHandler">
            <bean class="org.springframework.faces.richfaces.RichFacesAjaxHandler"/>
        </property>
    </bean>

So my ajax request was not being identified. I removed the controller (not sure where that came from) and added the ajax handler to the flowhandleradaptor.

HTML Code:

<bean class="org.springframework.webflow.mvc.servlet.FlowHandlerAdapter">
        <property name="flowExecutor" ref="flowExecutor"/>
<property name="ajaxHandler">
            <bean class="org.springframework.faces.richfaces.RichFacesAjaxHandler"/>
        </property>
    </bean>

The thread below gave me the hint.

http://forum.springsource.org/showthread.php?t=74388

**phuna** · Aug 2nd, 2009, 08:27 PM

Hi mrpack,

I've got same problem.
I've checked my bean config to see if same fix can be applied , but I have only one FlowController defined. I tried to change it to FlowHandlerAdapter like you, but the problem still exists.
Could you post your sample application/setting here?

Thanks in advance,

--
Nguyen Anh Phu

**mrpack** · Aug 3rd, 2009, 05:12 AM

Hi Phuna,

Here is my webflow config... The only non-standard bit (that i know of) is the SharedHibernateFlowExecutionListener which is not relevant to this problem anyway.

Code:

<!-- Enables FlowHandler URL mapping -->
    <bean class="org.springframework.webflow.mvc.servlet.FlowHandlerAdapter">
        <property name="flowExecutor" ref="flowExecutor"/>
        <property name="ajaxHandler" ref="ajaxHandler"/>
    </bean>
    
    <bean id="ajaxHandler" class="org.springframework.faces.richfaces.RichFacesAjaxHandler"/>

<!-- Maps request paths to flows in the flowRegistry;
         e.g. a path of /hotels/booking looks for a flow with id "hotels/booking" -->
    <bean class="org.springframework.webflow.mvc.servlet.FlowHandlerMapping">
        <property name="flowRegistry" ref="flowRegistry"/>
        <property name="order" value="2"/>
        <property name="defaultHandler">
			<!-- If no flow match, map path to a view to render; e.g. the "/home" path would map to the view named "home" -->	
			<bean class="org.springframework.web.servlet.mvc.UrlFilenameViewController" />
		</property>
    </bean>

<!-- Maps logical view names to Facelet templates in /WEB-INF (e.g. 'home' to '/WEB-INF/home.xhtml' -->
	<bean id="faceletsViewResolver" class="org.springframework.web.servlet.view.UrlBasedViewResolver">
		<property name="viewClass" value="org.springframework.faces.mvc.JsfView"/>
		<property name="prefix" value="/WEB-INF/faces/" />
		<property name="suffix" value=".xhtml" />
	</bean>

<!-- Dispatches requests mapped to org.springframework.web.servlet.mvc.Controller implementations -->
	<!-- Used to handle requests that do not use a flow -->
	<bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter" />


    <!-- Setup Web Flow here -->
    <!-- Executes flows: the central entry point into the Spring Web Flow system -->
    <webflow:flow-executor id="flowExecutor">
    	<webflow:flow-execution-listeners>
        	<webflow:listener ref="hibernateFlowExecutionListener" />
        	<webflow:listener ref="securityFlowExecutionListener" />
    	</webflow:flow-execution-listeners>    	
    </webflow:flow-executor>
    
    <bean id="hibernateFlowExecutionListener" class="uk.ac.diamond.duo.common.webui.web.hibernate.SharedHibernateFlowExecutionListener">
    	<constructor-arg ref="sessionFactory" />
    	<constructor-arg ref="transactionManager" />
	</bean>
    <!-- <bean id="hibernateFlowExecutionListener" class="org.springframework.webflow.persistence.HibernateFlowExecutionListener">
    	<constructor-arg ref="sessionFactory" />
    	<constructor-arg ref="transactionManager" />
	</bean> -->
    
    <!-- The registry of executable flow definitions -->
    <webflow:flow-registry id="flowRegistry" flow-builder-services="facesFlowBuilderServices" base-path="/WEB-INF/flows">
        <webflow:flow-location-pattern value="/**/*-flow.xml"/>
    </webflow:flow-registry>

    <!-- Configures the Spring Web Flow JSF integration -->
    <faces:flow-builder-services id="facesFlowBuilderServices"  development="true"/>
    
    <!-- Installs a listener to apply Spring Security authorities -->
	<bean id="securityFlowExecutionListener" class="org.springframework.webflow.security.SecurityFlowExecutionListener" />

I think some of web.xml was also relevant...

Code:

<filter>
  <display-name>RichFaces Filter</display-name>
  <filter-name>richfaces</filter-name>
  <filter-class>org.ajax4jsf.Filter</filter-class>
 </filter>

 <servlet>
  <servlet-name>dispatcher</servlet-name>
  <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  <init-param>
   <param-name>contextConfigLocation</param-name>
   <param-value/>
  </init-param>
  <load-on-startup>2</load-on-startup>
 </servlet>


 <filter-mapping>
  <filter-name>richfaces</filter-name>
  <servlet-name>dispatcher</servlet-name>
  <dispatcher>REQUEST</dispatcher>
  <dispatcher>FORWARD</dispatcher>
  <dispatcher>INCLUDE</dispatcher>
 </filter-mapping>

**phuna** · Aug 3rd, 2009, 08:25 PM

Thank you mrpack,

Looking at your configuration, I found that I have 2 FlowHandlerAdapter actually! One in bean config and one in webflow config. I removed one of them and it works fine now.

Thank you very much for your help.

**flowerlin** · Aug 20th, 2009, 08:45 AM

After searching in google I found that this one is the most related to my problem.

I'm using webflow 2.0.7, richfaces 3.3.1 and spring security 2.0.5

When I make an ajax request and the user session is expired I'm redirected to the login page (custom one), I'm able to login but after that the html I receive is

Code:

<?xml version="1.0" encoding="UTF-8"?>
<html xmlns="http://www.w3.org/1999/xhtml"><head><meta name="Ajax-Response" content="redirect" /><meta name="Location" content="/Schoolix/groups/new.sp" /></head></html>

So my page is white and I have to make f5 refresh to see my application (because the url in the browser is the right one).

Here is my webflow configuration

Code:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:webflow="http://www.springframework.org/schema/webflow-config"
	xmlns:faces="http://www.springframework.org/schema/faces"
	xsi:schemaLocation="
           http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
           http://www.springframework.org/schema/webflow-config
           http://www.springframework.org/schema/webflow-config/spring-webflow-config-2.0.xsd
           http://www.springframework.org/schema/faces
           http://www.springframework.org/schema/faces/spring-faces-2.0.xsd"

	default-autowire="byName">


	<!--
		Executes flows: the central entry point into the Spring Web Flow
		system
	-->
	<webflow:flow-executor id="flowExecutor">
		<webflow:flow-execution-listeners>
			<webflow:listener ref="jpaFlowExecutionListener" />
			<webflow:listener ref="securityFlowExecutionListener" />
		</webflow:flow-execution-listeners>
	</webflow:flow-executor>

	<!-- The registry of executable flow definitions -->
	<webflow:flow-registry id="flowRegistry"
		flow-builder-services="facesFlowBuilderServices" base-path="/WEB-INF/flows">
		<webflow:flow-location-pattern value="/**/*-flow.xml" />
	</webflow:flow-registry>

	<!-- Configures the Spring Web Flow JSF integration -->
	<bean id="selectItemsConversionService"
		class="eu.dreamix.schoolix.view.swf.SelectItemsConversionService">
	</bean>

	<faces:flow-builder-services id="facesFlowBuilderServices"
		development="true" expression-parser="expressionParser"
		conversion-service="selectItemsConversionService" />

	<bean id="expressionParser"
		class="org.springframework.webflow.expression.WebFlowOgnlExpressionParser">
		<property name="conversionService" ref="selectItemsConversionService" />
	</bean>

	<!--
		Installs a listener that manages JPA persistence contexts for flows
		that require them
	-->
	<bean id="jpaFlowExecutionListener"
		class="org.springframework.webflow.persistence.JpaFlowExecutionListener">
		<constructor-arg ref="entityManagerFactory" />
		<constructor-arg ref="transactionManager" />
	</bean>

	<!-- Installs a listener to apply Spring Security authorities -->
	<bean id="securityFlowExecutionListener"
		class="org.springframework.webflow.security.SecurityFlowExecutionListener" />

	<bean id="ajaxHandler"
		class="org.springframework.faces.richfaces.RichFacesAjaxHandler" />

	<bean class="org.springframework.webflow.mvc.servlet.FlowHandlerAdapter" />



</beans>

Anyone solution?

**mrpack** · Aug 20th, 2009, 07:51 PM

Your problem sounds similar to this..

http://forum.springsource.org/showthread.php?t=56772&highlight=session+timeout+a jax+commence&page=3

I never got a login screen in my case but I think thats because I was using CAS security.

**flowerlin** · Aug 26th, 2009, 03:58 AM

Here I found the reason and the solution http://forum.springsource.org/showthread.php?t=76771

**herve** · Mar 4th, 2010, 12:22 AM

Originally Posted by phuna

Thank you mrpack,

Looking at your configuration, I found that I have 2 FlowHandlerAdapter actually! One in bean config and one in webflow config. I removed one of them and it works fine now.

Thank you very much for your help.

Thanks man i had the same problem, having 2 flowhandleradapter too!!!!!!!!!!!!!!!!!!!
Now my richface integration is fully functional!! nice!!

Cheers

**pgf** · Jan 8th, 2011, 11:03 AM

Thanks to all the contributors to this thread. I had the same problem until I read this thread.

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