Dear Struts users and experts:
Sorry for the previous email, somehow the email program change some of the
character encoding.
I am new to Struts and try to build a main multi-frames webpage. My
navigation frame is on the top frames. So, whenever the user click a link on
the navigation frame, the center frame will be updated. I have successfully
build the page for login. If the user login successfully, they will be shown
the main page. I try to build a jsp page where user can change their account
detail. The link is provided on the top frame(navigation frame). The account
detail page will be displayed in the center frame. I have create the form,
called "UserAccountForm", the Action, "GetUserAccountAction", and the
corresponding entry in the struts-config.xml file. The snap-shot of my
struts-config.xml file related to this problem is shown below:
<form-beans>
<form-bean name�oginForm" type,om.netadvsr.form.LoginForm"/>
<form-bean name�serAccountForm" type,om.netadvsr.form.UserAccountForm/>
</form-beans>
<action
path="/getuseraccount"
type="com.netadvsr.action.GetUserAccountAction"
scope="request"
attribute="userAccountForm"
name="userAccountForm"
validate="false">
<forward name="Success" path="/jsp/userAccount.jsp" redirect="true"/>
</action>
Note: for the above action mapping, I have try with only attribute/name
or both of them together, but still getting the same problem.
And this is the link that will activate the userAccount jsp page.
<html:link href="../getuseraccount.do?action=Edit" target="mainFrame">
<bean:message key="main.toplink.myaccount"/>
</html:link>
Note: "mainFrame" in the above code is the name of the center frame.
And here is my "GetUserAccountAction.java" code.(only have execute method)
public class GetUserAccountAction extends Action {
public ActionForward execute( ActionMapping mapping,
ActionForm form, HttpServletRequest request, HttpServletResponse
response)
throws Exception {
// Extract attributes we will need
Locale locale = getLocale(request);
MessageResources messages = getResources(request);
HttpSession session = request.getSession();
String action = request.getParameter("action");
if (action == null) {
action = "Edit";
}
/* Get the UserView from the session, has been set by the previous action
code
when the user login successfully.
*/
UserView userView (UserView)request.getSession().getAttribute( IConstants
USER_VIEW_KEY );
if (userView != null) {
if (form == null) {
form = new UserAccountForm();
if ("request".equals(mapping.getScope()))
request.setAttribute(mapping.getAttribute(), form);
else
session.setAttribute(mapping.getAttribute(), form);
}
UserAccountForm aform = (UserAccountForm)form;
aform.setAction(action);
aform.setFullname(userView.getFullname());
aform.setUsername(userView.getUsername());
aform.setPassword(userView.getPassword());
aform.setRetypePassword(userView.getPassword());
aform.setPrivilege(userView.getPrivilege());
return mapping.findForward( IConstants.SUCCESS_KEY );
} else return mapping.findForward("NotLogin");
}
}
Note: some of the code are adopted from the example code provided by Struts
distribution.
And finally, this is the error that I get:(that show in the center frame)
type: Exception report
message: Internal Server Error
description: The server encountered an internal error (Internal Server
Error) that prevented it from fulfilling this request.
exception:
javax.servlet.ServletException: bean userAccountForm not found within scope
at org.apache.jasper.runtime.PageContextImpl handlePageException
(PageContextImpl.java:471)
at org.apache.jsp.userAccount$jsp._jspService(userAccount$jsp.java:777)
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:201)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:381)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:473)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain
internalDoFilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain
doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve
invoke(StandardWrapperValve.java:243)
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:190)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline
java:566)
at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve
java:246)
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.StandardContext.invoke(StandardContext
java:2347)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve
java:180)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline
java:566)
at org.apache.catalina.valves.ErrorDispatcherValve
invoke(ErrorDispatcherValve.java:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline
java:564)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve
java:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline
java:564)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve
java:468)
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:174)
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:1027)
at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor
java:1125)
at java.lang.Thread.run(Thread.java:536)
root cause
java.lang.InstantiationException: bean userAccountForm not found within
scope
at org.apache.jsp.userAccount$jsp._jspService(userAccount$jsp.java:78)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.jasper.servlet.JspServlet$JspServletWrapper
service(JspServlet.java:201)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:381)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:473)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain
internalDoFilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain
doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve
invoke(StandardWrapperValve.java:243)
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:190)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline
java:566)
at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve
java:246)
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.StandardContext.invoke(StandardContext
java:2347)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve
java:180)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline
java:566)
at org.apache.catalina.valves.ErrorDispatcherValve
invoke(ErrorDispatcherValve.java:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline
java:564)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve
java:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline
java:564)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve
java:468)
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:174)
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:1027)
at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor
java:1125)
at java.lang.Thread.run(Thread.java:536)
I will be very grateful if someone who know what's went wrong with my
approach.
I have tried few days to find the bug, but can't seem to solve it. Please. I
m in urgent
need for the solution. I thank you in advance for reading this email and
helping me out.
Thanks.
Sincerely,
Brandon
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