[alombard]

– System Setup ——————————-
Operating System and version: XP pro SP1
Eclipse version: 3.1.1
Eclipse build id: M20050929-0840
Fresh Eclipse install (y/n): y
If not, was it upgraded to its current version using the update manager?
Other installed external plugins: yes
Number of plugins in the <eclipse>/plugins directory that begin with org.eclipse.pde.*: 8
MyEclipse version: 4.1.0
Eclipse JDK version: 1.5.0_06
Application Server JDK version: Tomcat 5.5.12
Are there any exceptions in the Eclipse log file? n
– Message Body ——————————-

Hello,

I am new to MyEclipse (4.1.0 GA) and I want to develop a web application with JSF and Spring.
I have begun with JSF LoginDemo from the help.

Then, I added the Spring Capabilities to the project.
I created an empty UserService interface, and an empty UserServiceImpl class.
In the (existing) UserBean.java, I added a property of type UserService and generated the getter and setter.

In the faces-config.xml, I added the variable-resolver:

<application>
    <variable-resolver>org.springframework.web.jsf.DelegatingVariableResolver</variable-resolver>
    <locale-config>
        <default-locale>en</default-locale>
        <supported-locale>en</supported-locale>
        <supported-locale>fr</supported-locale>
    </locale-config>
</application>

and the managed property of the managed bean UserBean:

    <managed-property>
        <property-name>userService</property-name>
        <value>#{userService}</value>
    </managed-property>

And in the applicationContext.xml, I added the bean userService :

<bean id="userService" class="com.jsfdemo.business.bean.UserServiceImpl" abstract="false" singleton="true" lazy-init="default" autowire="default" dependency-check="default"></bean>

Then, when I deploy and go to the Page, I get the following:

javax.servlet.ServletException: Expression: '#{UserBean.userName}'
    javax.faces.webapp.FacesServlet.service(FacesServlet.java:125)

Interesting is that when I remove #{userService} of the value of the managed property, it works fine (except that the userService property of UserBean is not initialized).

I tried with the 3 JSF implementations (Sun RI 1.1.01, MyFaces 1.0.9 and 1.1.1?) with the same results.

I have looked around I saw that there were compatibility issues with Spring’s DelegatingVariableResolver and JSF.

So, I would like to know if anyone did something with JSF and Spring, with or without MyEclipse, and how.

Many thanks for your help

*** Date: Fri Feb 03 17:13:08 CET 2006

*** System properties:
OS=WindowsXP
OS version=5.1
Java version=1.5.0_06

*** MyEclipse details:
MyEclipse Enterprise Workbench

Version: 4.1.0 GA
Build id: 20060122-4.1-GA

*** Eclipse details:
Eclipse SDK

Version: 3.1.1
Build id: M20050929-0840

Eclipse Platform

Version: 3.1.1
Build id: M20050929-0840

Eclipse Java Development Tools

Version: 3.1.1
Build id: M20050929-0840

Eclipse Plug-in Development Environment

Version: 3.1.1
Build id: M20050929-0840

Eclipse Project SDK

Version: 3.1.1
Build id: M20050929-0840

Eclipse Graphical Editing Framework

Version: 3.1
Build id: 200509301327

Eclipse RCP

Version: 3.1.1
Build id: M20050929-0840

Eclipse startup command=-os
win32
-ws
win32
-arch
x86
-launcher
D:\Program Files\eclipse\eclipse.exe
-name
Eclipse
-showsplash
600
-exitdata
89c_58
-vm
D:\jdk1.5.0_06\jre\bin\javaw.exe

[Riyad Kalla]

Moving to OT > Soft Dev, this is a JSF/Spring issue.

Off the top of my head I really have no idea, I haven’t played with the var resolving and JSF.

[roger siegrist]

Hi,

I solved the problem some times ago and I am not sure of the solution.
But I think it had something to do with the web.xml.

From what I have, I would say that it is necessary to load a spring context servlet like this:

    <servlet>
        <servlet-name>SpringContextServlet</servlet-name>
        <servlet-class>org.springframework.web.context.ContextLoaderServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>

I hope this helps.

[bansi]

Could you pl let me know how to resolve the issue at it shows the following error in IDE
“org.springframework.web.jsf.DelegatingVariableResolver is not a subtype of javax.faces.el.VariableResolver”

[Riyad Kalla]

bansi,
This might be an error in the IDE, can you post all the system information from your MyEclipse > Installation Summary > Installation Details screen for us, also can you paste the snippet of your faces-config file that is causing the problem and enough information so we can reproduce this problem locally.

[bansi]

Thanks for your response. Here is the info
*** System properties:
OS=WindowsXP
OS version=5.1
Java version=1.4.2_04

*** MyEclipse details:
MyEclipse Enterprise Workbench

Version: 4.1.0 GA
Build id: 20060122-4.1-GA

*** Eclipse details:
Eclipse SDK

Version: 3.1.1
Build id: M20050929-0840

Eclipse Platform

Version: 3.1.1
Build id: M20050929-0840

Eclipse RCP

Version: 3.1.1
Build id: M20050929-0840

Eclipse Java Development Tools

Version: 3.1.1
Build id: M20050929-0840

Eclipse Plug-in Development Environment

Version: 3.1.1
Build id: M20050929-0840

Eclipse Project SDK

Version: 3.1.1
Build id: M20050929-0840

Eclipse startup command=-os
win32
-ws
win32
-arch
x86
-launcher
C:\eclipse\eclipse\eclipse.exe
-name
Eclipse
-showsplash
600
-exitdata
b44_60
-vm
C:\j2sdk1.4.2_04\bin\javaw.exe

Here is faces-config file which shows “Red” crossmark in the IDE at <variable-resolver> tag stating that “org.springframework.web.jsf.DelegatingVariableResolver is not a subtype of javax.faces.el.VariableResolver”

<?xml version=”1.0″ encoding=”UTF-8″?>
<!DOCTYPE faces-config PUBLIC “-//Sun Microsystems, Inc.//DTD JavaServer Faces Config 1.1//EN” “http://java.sun.com/dtd/web-facesconfig_1_1.dtd”&gt;

<faces-config>
<!– Allows you to inject Spring beans into JSF managed beans… –>
<application>
<variable-resolver>org.springframework.web.jsf.DelegatingVariableResolver</variable-resolver>
</application>

<managed-bean>
<managed-bean-name>showRooms</managed-bean-name>
<managed-bean-class>hotelReservations.ShowRooms</managed-bean-class>
<managed-bean-scope>request</managed-bean-scope>
<managed-property>
<property-name>manager</property-name>
<value>#{manager}</value>
</managed-property>
</managed-bean>

</faces-config>

[Riyad Kalla]

Thank you for the example, I believe this bug was fixed in one of our later releases. I just tried your example in MyEclipse 5.0.1 (installed on Eclipse 3.2) and there was no error marker.

You can try doing a simultaneous install of Eclipse 3.2 SDK and MyEclipse 5.0.1 to new directories and try the same example on your end. I tried on two setups here an they worked fine.

[Jeremy Stein]

Going back to the problem in the original post, the issue was that Spring was never loaded. The second poster (avintis) suggested using ContextLoaderServlet, but it would be better to use ContextLoaderListener as listeners are loaded before servlets. So, this should be added to web.xml:

<listener>
  <listener-class
    org.springframework.web.context.ContextLoaderListener
</listener>

By default, MyEclipse 5 (I’m not sure about 4) puts applicationContext.xml in src, which means it gets copied to WEB-INF/classes. Spring expects it to be in WEB-INF, so you have to also add this to web.xml to tell Spring where to find the file:

<context-param>
  <param-name>contextConfigLocation</param-name>
  <param-value>/WEB-INF/classes/applicationContext.xml</param-value>
</context-param>

In any case, it’s also a good idea to configure log4j, so that Spring can tell you when it has a problem (such as being unable to find its config file). Drop log4j.properties in src:

log4j.rootCategory=INFO, stdout

log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=[@APPNAME@] %p [%t] %c{1}.%M(%L) | %m%n

log4j.logger.org.springframework=WARN

[bansi]

Hi Riyad
As suggested by you i tried on MyEclipse 3.2 and MyEclipse5.0 unfortunately the problem still persist.
Also as suggested by JeremyStein i have the foolowing files
<application>
<variable-resolver>org.springframework.web.jsf.DelegatingVariableResolver</variable-resolver>
</application>

<managed-bean>
<managed-bean-name>showRooms</managed-bean-name>
<managed-bean-class>hotelReservations.ShowRooms</managed-bean-class>
<managed-bean-scope>application</managed-bean-scope>
<managed-property>
<property-name>manager</property-name>
<value>#{manager}</value>
</managed-property>
</managed-bean>

<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/classes/applicationContext.xml</param-value>
</context-param>
<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>
<session-config>
<session-timeout>30</session-timeout>
</session-config>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>

<bean id=”roomDAO” class=”hotelReservations.dao.RoomDaoHibernate”>
<property name=”hibernateTemplate”>
<ref bean=”hibernateTemplate”/>
</property>
</bean>

<bean id=”hibernateTemplate”
class=”org.springframework.orm.hibernate3.HibernateTemplate”>
<property name=”sessionFactory”>
<ref bean=”sessionFactory”/>
</property>
</bean>

<!–Manager for Hotel rooms application.–>
<bean id=”hotelManager” class=”hotelReservations.HotelManager”>
<property name=”roomDAO”>
<ref local=”roomDAO”/>
</property>
</bean>

<!–Wraps manager in order to support transactions.–>
<bean id=”manager” class=”org.springframework.transaction.interceptor.TransactionProxyFactoryBean”>
<property name=”transactionManager”>
<ref local=”transactionManager”/>
</property>
<property name=”target”>
<ref local=”hotelManager”/>
</property>
<property name=”transactionAttributes”>
<props>
<prop key=”save*”>PROPAGATION_REQUIRED</prop>
<prop key=”remove*”>PROPAGATION_REQUIRED</prop>
<prop key=”*”>PROPAGATION_REQUIRED,readOnly</prop>
</props>
</property>
</bean>

[bansi]

@JeremyStein wrote:

Going back to the problem in the original post, the issue was that Spring was never loaded. The second poster (avintis) suggested using ContextLoaderServlet, but it would be better to use ContextLoaderListener as listeners are loaded before servlets. So, this should be added to web.xml:

<listener>
  <listener-class
    org.springframework.web.context.ContextLoaderListener
</listener>

By default, MyEclipse 5 (I’m not sure about 4) puts applicationContext.xml in src, which means it gets copied to WEB-INF/classes. Spring expects it to be in WEB-INF, so you have to also add this to web.xml to tell Spring where to find the file:

<context-param>
  <param-name>contextConfigLocation</param-name>
  <param-value>/WEB-INF/classes/applicationContext.xml</param-value>
</context-param>

In any case, it’s also a good idea to configure log4j, so that Spring can tell you when it has a problem (such as being unable to find its config file). Drop log4j.properties in src:

log4j.rootCategory=INFO, stdout

log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=[@APPNAME@] %p [%t] %c{1}.%M(%L) | %m%n

log4j.logger.org.springframework=WARN

[Riyad Kalla]

bansi,
Would you be able to creat a small sample project with just the necessary parts to see this bug and email it to me at support@genuitec.com ATTN Riyad? Also please include a link to this forum post so I know why I’m getting it.

[Riyad Kalla]

bansi,
Your examples files were helpful but not complete so I had to structure a project around them (some dummy classes). I would point out that I have no errors with any of these files:

and

and you can download my project to double check that it works with your install of MyEclipse.

[bansi]

Hi Riyad
Thank you so much for your help. I downloaded your project and noticed that ShowRooms.java under hotelReservations package has been made empty. Wondering whether this was the fix or is there something else which i am missing.
Also ShowRooms.java is a JSF Backing Bean which uses Dependency Injection to inject Spring Beans i.e. manager in this example as shown below
/**
* Holds value of property hotelReservation.
*/
private HotelManager manager;

/**
* Setter for property hotelManager.
* @param hotelManager New value of property hotelManager.
*/
public void setManager(HotelManager manager) {
this.manager = manager;
}

public HotelManager getManager() {
return manager;
}
Could you please tell me the changes you made to fix the problem. Also pl note the reference to this sample project is available at http://www.developer.com/java/ent/article.php/3602061

Regards
Bansi

[Riyad Kalla]

Bansi,
I’m sorry I don’t have time right at the moment to dig into that example project and figure out where the differences lay. If I get some time later this week I will, in the mean time let me know if you find anything out.

[bansi]

Hi Riyad
I have ran into new problem now. Here is the error from Tomcat Console
Sep 5, 2006 2:31:27 PM org.apache.catalina.core.StandardContext start
SEVERE: Error listenerStart
Sep 5, 2006 2:31:27 PM org.apache.catalina.core.StandardContext start
SEVERE: Context startup failed due to previous errors

This happens only when i add listener to web.xml file
<listener>
<listener-class> org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

The moment i take off this line the error disapperas
Pl suggest

Regards
Bansi

[Author]

Posts