Spring framework - Error with session scoped Beans

Hello guys,
I'm trying execute my Java Application inside Netweaver Application Server, but I'm having problems with serviceBeans with scope session. Anyone have already used Spring with session scope?
Thanks,
Cleiton.

After many attempt, when I declared the bean with <aop:scoped-proxy /> it works, however it could cause performance problem. I don't need refer this bean by another singleton bean, i did a wrong configuration in order to make a work a round...
When I run my application on tomcat server, the DWR starts perfectly the "session scope bean form IOC container", but in the WEBAS maybe it's running in other thread. Is it possible?
Anyone had a problem like this?
I got a detailed error with log4j,
ERROR Application [1] org.directwebremoting.impl.DefaultCreatorManager - Error loading class for creator 'SpringCreator[CounterSpringFacade]'.
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'counterSpringFacade': Scope 'session' is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton; nested exception is java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web request, or processing a request outside of the originally receiving thread? If you are actually operating within a web request and still receive this message, your code is probably running outside of DispatcherServlet/DispatcherPortlet: In this case, use RequestContextListener or RequestContextFilter to expose the current request.
     at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:312)
     at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
     at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
     at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:881)
     at org.directwebremoting.spring.SpringCreator.getInstance(SpringCreator.java:145)
     at org.directwebremoting.spring.SpringCreator.getType(SpringCreator.java:107)
Edited by: Cleiton dos Santos Garcia on Jan 7, 2009 5:02 PM

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<%}
else
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It's OK to ask questions.
But I gotta say that this is not very-well designed code. Honestly, it hurts my eyes to look over it. It is almost impossible something not to go wrong with that code. Here's some tips :
1. Instead of using private instance fields for db connection parameters, use the ServletConfig or ServletContext parameters.
2. use get/set/removeAttribute instead of put/getValue. Those methods are deprecated.
3. Your JSP relies heavily on hidden form fields. Any client with just a right click on your jsp, and View Source, will get a look of your underlying database implementation. And that is not good :).
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Have fun,
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import javax.servlet.http.*;
import javax.servlet.*;
public class SimpleJSPBean extends HttpServlet
implements Serializable
private long m_counter=0L;
public long getCounter(){
return m_counter;
public void service (HttpServletRequest req, HttpServletResponse res)
throws IOException, ServletException
m_counter++;
& jsp code is :
<html>
<body>
<BEAN name="counter" scope="session"
type="test.SimpleJSPBean" create="yes" introspect="yes'>
</Bean>
You have accessed this page
<%= counter.getCounter() %> times
</body>
</html>
Zulfi.

Following error occurred:
A Servlet Exception Has Occurred
Exception Report:
javax.servlet.ServletException: Cannot create bean of class test.SimpleJSPBean
     at org.apache.jsp.SimpleJSPBean_jsp._jspService(SimpleJSPBean_jsp.java:71)
     at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:200)
     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:379)
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:453)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:254)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:194)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:255)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:225)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2252)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:446)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:163)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:875)
     at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:952)
     at java.lang.Thread.run(Thread.java:484)
Root Cause:
java.lang.ClassNotFoundException: class test.SimpleJSPBean : java.lang.IllegalAccessException: test.SimpleJSPBean
     at java.beans.Beans.instantiate(Beans.java:211)
     at java.beans.Beans.instantiate(Beans.java:51)
     at org.apache.jsp.SimpleJSPBean_jsp._jspService(SimpleJSPBean_jsp.java:69)
     at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:200)
     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:379)
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:453)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:254)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:194)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:255)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:225)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2252)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:446)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:163)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:875)
     at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:952)
     at java.lang.Thread.run(Thread.java:484)
Zulfi.

Error with invoking a bean

Hi,
I am getting following excepion:
A Servlet Exception Has Occurred
org.apache.jasper.JasperException: Unable to compile class for JSPE:\e-data\tomcat40\bin\..\work\localhost\examples\jsp\SimpleJSPBean_jsp.java:59: Undefined variable or class name: counter
out.print( counter.getCounter() );
^
1 error
     at org.apache.jasper.compiler.Compiler.compile(Compiler.java:277)
     at org.apache.jasper.servlet.JspServlet.loadJSP(JspServlet.java:523)
     at org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadIfNecessary(JspServlet.java:175)
     at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:187)
     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:379)
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:453)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:254)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:194)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:255)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:225)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2252)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:446)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:163)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:875)
     at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:952)
     at java.lang.Thread.run(Thread.java:484)
My bean code is as follows:
package test;
import java.io.*;
import javax.servlet.http.*;
import javax.servlet.*;
public class SimpleJSPBean extends HttpServlet
implements Serializable
private long m_counter=0L;
public long getCounter(){
return m_counter;
public void service (HttpServletRequest req, HttpServletResponse res)
throws IOException, ServletException
m_counter++;
& jsp code is :
<html>
<body>
<BEAN name="counter" scope="session"
type="test.SimpleJSPBean" create="yes" introspect="yes'>
</Bean>
You have accessed this page
<%= counter.getCounter() %> times
</body>
</html>
Zulfi.

Its not obligatory for me to use Bean tag. I have modified my JSP:
<html>
<body>
<jsp:useBean id="counter" scope="session" class="test.SimpleJSPBean" /jsp:useBean>
You have accessed this page
<%= counter.getCounter() %> times
</body>
</html>
& bean
stored in
examples\WEB-INF\classes\test directory.
is given below:
package test;
public class SimpleJSPBean {
public int count;
SimpleJSPBean(){
count=0;
public int getCount() {
return count;
public void setCount() {
count=9;
count++;
I am getting following error:
A Servlet Exception Has Occurred
org.apache.jasper.compiler.ParseException: E:\e-data\tomcat40\bin\..\webapps\examples\jsp\SimpleJSPBean.jsp(2,69) Attribute has no value
     at org.apache.jasper.compiler.JspReader.parseAttributeValue(JspReader.java:567)
     at org.apache.jasper.compiler.JspReader.parseTagAttributesBean(JspReader.java:620)
     at org.apache.jasper.compiler.Parser$Bean.accept(Parser.java:642)
     at org.apache.jasper.compiler.Parser.parse(Parser.java:1126)
     at org.apache.jasper.compiler.Parser.parse(Parser.java:1091)
     at org.apache.jasper.compiler.Parser.parse(Parser.java:1087)
     at org.apache.jasper.compiler.ParserController.parse(ParserController.java:220)
     at org.apache.jasper.compiler.Compiler.compile(Compiler.java:207)
     at org.apache.jasper.servlet.JspServlet.loadJSP(JspServlet.java:523)
     at org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadIfNecessary(JspServlet.java:175)
     at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:187)
     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:379)
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:453)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:254)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:194)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:255)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:225)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2252)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:446)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:163)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:875)
     at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:952)
     at java.lang.Thread.run(Thread.java:484)
Zulfi.

Session scoped beans other than SessionBean1

Let's say I want to provide a logout action. I can end the session by using the below in my logoutButton_action method:
try {
FacesContext context = FacesContext.getCurrentInstance();
HttpSession session = (HttpSession) context.getExternalContext().getSession(false);
session.invalidate();
this.getExternalContext().redirect("Page1.jsp");
} catch (Exception e) {
log("Logout exception: " + e.getMessage());
I would not have been able to figure out even that much if it wasn't for this forum. BUT, what about if I have other managed beans (i.e. just plain classes registered in managed-beans.xml) that have session scope, such a class to a hold a logged-in user's details during the session. How do I destroy that when the user logs out?

{color:#333399}*hi*
you can set any Object in ur sessionBean1 to be NULL,, by this way , ur session will hold no more data.
{color}

PLZ Help: how to get value of a request scoped Bean/Attribute in JSF ?!!!

hi,
I noticed this part of code to retrieve session scoped beans/vars in an ActionListener or other jsf classes, but it does not work for request scoped beans/vars :( what's the problem then ? what shall i do ?
Type var = (Type)Util.getValueBinding("myBeanInRequest")).getValue(context);
I have also set that getPhaseId() returns UPDATE_MODEL_VALUES or APPLY_REQUEST_VALUES.
Any comment or idea ?

I have declared my Bean in my JSP page not in the
faces-config.xml. Does this make any problem ? Also I
have tried the way you told me as well, but still the
returned attribute is null.
P.S. My bean is declared in my JSP page this way:
<jsp:useBean id="newSurveyVar" class="SurveyModel"
scope="request" />
This declaration causes the SurveyModel instance to be created in request scope when the page is rendered, but that doesn't help you when the form is submitted -- that is going to happen on the next request (so the request attribute created here goes away). Basically, <jsp:useBean> is not typically going to be useful for request scope attributes (it's ok for session or application scope, though).
and further I have this jsf code:
<h:command_button label="Create" commandName="create"
action="create" >
<f:action_listener
r type="CreateNewSurveyActionListener"/>
</h:command_button>
and this is my
CreateNewSurveyActionListener.processAction(ActionEvent
e) {
if (actionCommand.equals("create_the_survey")) {
FacesContext context =
t = FacesContext.getCurrentInstance();
SurveyModel survey =
y =
(SurveyModel)(Util.getValueBinding("newSurveyVar")).get
alue(context);
if (survey==null) // returns true :(((
And since I've declared my beans here there is nothing
special declared in my faces-config.xml
For me again it is really strange why it is not
working !!!
Any idea ? Because the event listener is fired in a separate request, so the one you created in the page is gone.
This is why the managed bean creation facility was created. If your component contains a valueRef that points at the bean name (or you evaluate a ValueBinding as illustrated earlier in the responses to your question), then the bean will get instantiated during the processing of the form submit.
Craig McClanahan

JSF problem Session Scoped and dialog

Hello All! i have one problem with using ajax and session scoped .
I'm using JSF 2.0 and Primefaces for build 2 dialog.
I have one icon to click on it dialog 1 will display and show all list of customers and when i click details of customer on dialog 1, dialog 2 will display , and details of customer show base on <h:form>
but my problem is when i click details of customer with id #1 it not show details of customer it return null, i must refresh this page and click on customer #1 and it display, but when i click on customer with id #3 it still display customer with id #1,and i must refresh page again to view customer with id #3 and after that if i want see details of other customer such as customer with id #5 i must click and refresh page, after refresh page i click on any id of customer if always show the last id of customer before refresh page, it mean because i use p:commandButton with ajax and 2 dialog inside one page, i know , if using session scoped i must pass value from one page to another page. But i want get id in the same page with session scoped this mean when i use p:commandButton call dialog 2 for pass id value from dialog one to dialog two it will get value don't refresh page . How can i do it? or can i call dialog from another show on the same page contain dialog 1?
Primefaces dialog http://www.primefaces.org/showcase/ui/dialogHome.jsf

Hello All! i have one problem with using ajax and session scoped .
I'm using JSF 2.0 and Primefaces for build 2 dialog.
I have one icon to click on it dialog 1 will display and show all list of customers and when i click details of customer on dialog 1, dialog 2 will display , and details of customer show base on <h:form>
but my problem is when i click details of customer with id #1 it not show details of customer it return null, i must refresh this page and click on customer #1 and it display, but when i click on customer with id #3 it still display customer with id #1,and i must refresh page again to view customer with id #3 and after that if i want see details of other customer such as customer with id #5 i must click and refresh page, after refresh page i click on any id of customer if always show the last id of customer before refresh page, it mean because i use p:commandButton with ajax and 2 dialog inside one page, i know , if using session scoped i must pass value from one page to another page. But i want get id in the same page with session scoped this mean when i use p:commandButton call dialog 2 for pass id value from dialog one to dialog two it will get value don't refresh page . How can i do it? or can i call dialog from another show on the same page contain dialog 1?
Primefaces dialog http://www.primefaces.org/showcase/ui/dialogHome.jsf

We should NEVER use the session back bean?

Because the user can open a new window by right click the link, and the session scope back bean is not thread-safe.
So we should forget it?

Your concern makes really no sense, or you must be storing request scoped data in a session scoped bean instead of a request scoped bean, which can indeed lead to undesireable behaviour in multiple requests on the same session.

Spring framework - Error with session scoped Beans

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