Hosting a Web Dynpro App physically present on another server

Hello All,
We are on the process of seperating Web Dynpro applications onto a seperate box, and configuring iViews for them on a dedicated portal server. As part of this:-
1. I created a new system in the portal. This new system points to the Web Application server holding the Web Dynpros
2. I configured an Iview using the system mentioned in step 1.
3. On previewing the same, I am getting the following error...
java.lang.ClassNotFoundException: com.sapportals.portal.prt.registry.PortalRegistryFactory Found in negative cache -
Loader Info -
ClassLoader name: [local/CreateWell]
The Web Application Server where the Web Dynpros are deployed does'nt have portal configured. Is the error because of that? I find that it is looking for Portal specific class (which would not be there in the WAS because EP is not configured on it).
Have any one tried a scenario like this?
Thanks in advance,
SPK.

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Error message after deploying Web Dynpro App.

Hi everyone,
I am having the following problem when trying to run my WD app after deploying it. The funny thing about this issue is I deployed this application earlier and it was working fine. But about an hour later I tried to access it again and got the following error:
Web Dynpro client:
HTML Client
Web Dynpro client capabilities:
User agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; FunWebProducts), version: null, DOM version: null, client type: msie6, client type profile: ie6, ActiveX: enabled, Cookies: enabled, Frames: enabled, Java applets: enabled, JavaScript: enabled, Tables: enabled, VB Script: enabled
Web Dynpro runtime:
Vendor: SAP, Build ID: 6.4012.00.0000.20050509073444.0000 (release=630_VAL_REL, buildtime=2005-05-09:20:05:04[UTC], changelist=346209, host=PWDFM026)
Web Dynpro code generators of DC local/VendorNotifnWD:
SapDictionaryGenerationCore: 6.4009.00.0000.20041026131628.0000 (release=630_REL, buildtime=2004-11-02:22:13:11[UTC], changelist=295793, host=PWDFM027.wdf.sap.corp)
SapMetamodelWebDynpro: 6.4009.00.0000.20041026132448.0000 (release=630_REL, buildtime=2004-11-02:22:17:25[UTC], changelist=295810, host=PWDFM027.wdf.sap.corp)
SapMetamodelCore: 6.4009.00.0000.20040909194107.0000 (release=630_REL, buildtime=2004-11-02:22:06:29[UTC], changelist=280398, host=PWDFM027.wdf.sap.corp)
SapWebDynproGenerationTemplates: 6.4009.00.0000.20041102105304.0000 (release=630_REL, buildtime=2004-11-02:22:38:28[UTC], changelist=297524, host=PWDFM027)
SapWebDynproGenerationCTemplates: 6.4009.00.0000.20041102105304.0000 (release=630_REL, buildtime=2004-11-02:22:38:28[UTC], changelist=297524, host=PWDFM027)
SapGenerationFrameworkCore: 6.4009.00.0000.20041026132141.0000 (release=630_REL, buildtime=2004-11-02:22:05:28[UTC], changelist=295805, host=PWDFM027.wdf.sap.corp)
SapIdeWebDynproCheckLayer: 6.4009.00.0000.20041026133106.0000 (release=630_REL, buildtime=2004-11-02:22:21:59[UTC], changelist=295820, host=PWDFM027.wdf.sap.corp)
SapMetamodelDictionary: 6.4009.00.0000.20040805191532.0000 (release=630_REL, buildtime=2004-11-02:22:10:20[UTC], changelist=270520, host=PWDFM027.wdf.sap.corp)
SapMetamodelCommon: 6.4009.00.0000.20040909194107.0000 (release=630_REL, buildtime=2004-11-02:22:06:42[UTC], changelist=280398, host=PWDFM027.wdf.sap.corp)
SapWebDynproGenerationCore: 6.4009.00.0000.20041026133106.0000 (release=630_REL, buildtime=2004-11-02:22:22:31[UTC], changelist=295820, host=PWDFM027.wdf.sap.corp)
SapDictionaryGenerationTemplates: (unknown)
Web Dynpro code generators of DC sap.com/tcwddispwda:
No information available
Web Dynpro code generators of DC sap.com/tcwdcorecomp:
No information available
J2EE Engine:
6.40 patchlevel 92160.313
Java VM:
Java HotSpot(TM) Server VM, version: 1.4.2_08-b03, vendor: Sun Microsystems Inc.
Operating system:
Windows 2003, version: 5.2, architecture: x86
Error stacktrace:
com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: com.eac.vendor.model.Viqmel
Loader Info -
ClassLoader name: [local/VendorNotifnWD]
Parent loader name: [Frame ClassLoader]
References:
   common:service:http;service:servlet_jsp
   service:ejb
   common:service:iiop;service:naming;service:p4;service:ts
   service:jmsconnector
   library:jsse
   library:servlet
   common:library:IAIKSecurity;library:activation;library:mail;library:tcsecssl
   library:ejb20
   library:j2eeca
   library:jms
   library:opensql
   common:library:com.sap.security.api.sda;library:com.sap.security.core.sda;library:security.class;library:webservices_lib;service:adminadapter;service:basicadmin;service:com.sap.security.core.ume.service;service:configuration;service:connector;service:dbpool;service:deploy;service:jmx;service:jmx_notification;service:keystore;service:security;service:userstore
   interface:resourcecontext_api
   interface:webservices
   interface:ejbserialization
   sap.com/tcwddispwda
   sap.com/tcwdcorecomp
   service:webdynpro
   service:sld
   library:tcddicddicservices
   library:com.sap.aii.proxy.framework
   library:tcgraphicsigs
   library:com.sap.mw.jco
   library:com.sap.lcr.api.cimclient
   library:sapxmltoolkit
   library:com.sap.aii.util.rb
   library:com.sap.util.monitor.jarm
   library:tcddicddicruntime
   library:com.sap.aii.util.xml
   library:tccolapi
   library:com.sap.aii.util.misc
   library:tc~cmi
   library:tccolruntime
Resources:
   F:\usr\sap\PED\JC00\j2ee\cluster\server0\apps\local\VendorNotifnWD\webdynpro\public\lib\app.jar
Loading model: {parent,references,local}
     at com.sap.tc.webdynpro.modelimpl.dynamicrfc.AiiModelClass.createNewBaseTypeDescriptor(AiiModelClass.java:378)
     at com.sap.tc.webdynpro.modelimpl.dynamicrfc.AiiModelClass.descriptor(AiiModelClass.java:186)
     at com.eac.vendor.model.Zzbapi_Qmnotif_Getdetail_Input.<init>(Zzbapi_Qmnotif_Getdetail_Input.java:51)
     at com.eac.vendor.VendorNotifnCust.wdDoInit(VendorNotifnCust.java:98)
     at com.eac.vendor.wdp.InternalVendorNotifnCust.wdDoInit(InternalVendorNotifnCust.java:152)
     at com.sap.tc.webdynpro.progmodel.generation.DelegatingCustomController.doInit(DelegatingCustomController.java:73)
     at com.sap.tc.webdynpro.progmodel.controller.Controller.initController(Controller.java:215)
     at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:200)
     at com.sap.tc.webdynpro.progmodel.controller.Component.getCustomControllerInternal(Component.java:436)
     at com.sap.tc.webdynpro.progmodel.controller.Component.getMappableContext(Component.java:374)
     at com.sap.tc.webdynpro.progmodel.controller.Component.getMappableContext(Component.java:403)
     at com.sap.tc.webdynpro.progmodel.context.MappingInfo.init(MappingInfo.java:138)
     at com.sap.tc.webdynpro.progmodel.context.NodeInfo.init(NodeInfo.java:746)
     at com.sap.tc.webdynpro.progmodel.context.NodeInfo.init(NodeInfo.java:761)
     at com.sap.tc.webdynpro.progmodel.context.Context.init(Context.java:40)
     at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:199)
     at com.sap.tc.webdynpro.progmodel.view.ViewManager.getView(ViewManager.java:540)
     at com.sap.tc.webdynpro.progmodel.view.ViewManager.bind(ViewManager.java:398)
     at com.sap.tc.webdynpro.progmodel.view.ViewManager.getView(ViewManager.java:555)
     at com.sap.tc.webdynpro.progmodel.view.ViewManager.bindRoot(ViewManager.java:422)
     at com.sap.tc.webdynpro.progmodel.view.ViewManager.init(ViewManager.java:130)
     at com.sap.tc.webdynpro.progmodel.view.InterfaceView.initController(InterfaceView.java:41)
     at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:200)
     at com.sap.tc.webdynpro.clientserver.cal.ClientComponent.displayToplevelComponent(ClientComponent.java:134)
     at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.init(ClientApplication.java:373)
     at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.execute(WebDynproMainTask.java:608)
     at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:59)
     at com.sap.tc.webdynpro.clientserver.cal.ClientManager.doProcessing(ClientManager.java:252)
     at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doWebDynproProcessing(DispatcherServlet.java:154)
     at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:116)
     at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doGet(DispatcherServlet.java:48)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:392)
     at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:266)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:345)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:323)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:865)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:240)
     at com.sap.engine.services.httpserver.server.Client.handle(Client.java:92)
     at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:148)
     at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:37)
     at com.sap.engine.core.cluster.impl6.session.UnorderedChannel$MessageRunner.run(UnorderedChannel.java:71)
     at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
     at java.security.AccessController.doPrivileged(Native Method)
     at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:95)
     at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:159)
Caused by: java.lang.ClassNotFoundException: com.eac.vendor.model.Viqmel
Loader Info -
ClassLoader name: [local/VendorNotifnWD]
Parent loader name: [Frame ClassLoader]
References:
   common:service:http;service:servlet_jsp
   service:ejb
   common:service:iiop;service:naming;service:p4;service:ts
   service:jmsconnector
   library:jsse
   library:servlet
   common:library:IAIKSecurity;library:activation;library:mail;library:tcsecssl
   library:ejb20
   library:j2eeca
   library:jms
   library:opensql
   common:library:com.sap.security.api.sda;library:com.sap.security.core.sda;library:security.class;library:webservices_lib;service:adminadapter;service:basicadmin;service:com.sap.security.core.ume.service;service:configuration;service:connector;service:dbpool;service:deploy;service:jmx;service:jmx_notification;service:keystore;service:security;service:userstore
   interface:resourcecontext_api
   interface:webservices
   interface:ejbserialization
   sap.com/tcwddispwda
   sap.com/tcwdcorecomp
   service:webdynpro
   service:sld
   library:tcddicddicservices
   library:com.sap.aii.proxy.framework
   library:tcgraphicsigs
   library:com.sap.mw.jco
   library:com.sap.lcr.api.cimclient
   library:sapxmltoolkit
   library:com.sap.aii.util.rb
   library:com.sap.util.monitor.jarm
   library:tcddicddicruntime
   library:com.sap.aii.util.xml
   library:tccolapi
   library:com.sap.aii.util.misc
   library:tc~cmi
   library:tccolruntime
Resources:
   F:\usr\sap\PED\JC00\j2ee\cluster\server0\apps\local\VendorNotifnWD\webdynpro\public\lib\app.jar
Loading model: {parent,references,local}
     at com.sap.engine.frame.core.load.ReferencedLoader.loadClass(ReferencedLoader.java:370)
     at com.sap.tc.webdynpro.modelimpl.dynamicrfc.AiiModelClass.createNewBaseTypeDescriptor(AiiModelClass.java:373)
     ... 46 more
What could be wrong? I have tried shutting down the J2EE engine and re-starting. I have also tried to bounce the server the J2EE is on. Still no luck. I see a ClassNotFoundException for com.eac.vendor.model.Viqmel, but Viqmel is not part of the package anyway?!?!?! What's really weird is that it was working fine a few hours ago! Please help!!
Kunal.

Hi Guys,
Here's how I solved it, actually this was quite a random solution!
1. I undeployed the application from SDM
2. I shut down and restarted the J2EE Engine.
3. I re-imported the Model.
4. I rebuilt, recreated the archive and re-deployed the app.
And to my surprise it started working again.
Thanks to all of you that replied.

Possible to run web dynpro apps without a portal??

Hi
Is it possible to run Web dynpro apps on a WAS without a portal?
Thx

Ah,
Absolutely possible.
Use url like
http://host:port/webdynpro/dispatcher/com.your-company/yourappdc/AppName
in your browser address bar
Valery Silaev
SaM Solutions
http://www.sam-solutions.net

How can I automatically refresh a Web Dynpro App every 5 minutes

Hello,
I have a web dynpro that is calling a web service. I need that this web dynpro app auto-refresh (recall the web service and update the information) without any user interaction every 5 minutes.
How can I do this?
Thanks & Regards
SU

you can use timedtrigger UI element to achieve it.
Edited by: John Wu on Jun 21, 2011 5:33 AM

How to change the web page title of a web dynpro app?

Hello,
I would like to change the HTML page title of a web dynpro application without renaming the application component itself - but how?
Thanks for your comments!

Hi M Walter,
Assuming you are using Web Dynpro Java, you can change the title of the Web Page for Web Dynpro App by adding the title to the main window of your app.
Go to Windows and open the properties. There will be a field called 'title'. Give the title you want, save, build, DC->Build and deploy.
The title you gave to this Window will be displayed as the title of your Web page.
Regards,
Ajay

Call WAPI error in web dynpro app

I write a very simple demo workflow, there is a approve step that call a web dynpro app.
I pass workitemid to my web dynpro program, then It call fm SAP_WAPI_RESERVE_WORKITEM and SAP_WAPI_WORKITEM_COMPLETE to comlete workitem programmly.
In SAPGUI workplace ,I receive a message ,then I execute workitem,web dynpro UI page is showed.When I execute approve operation(call two wapi fm above in approve event handler),SAP_WAPI_RESERVE_WORKITEM and SAP_WAPI_WORKITEM_COMPLETE's export parameter "return_code" is 1.
But I test/execute my web dynpro program standalone in workbench,all is ok,demo workflow continue.
I have spent a plenty of time for it,help me!
I'm sorry for my poor english .

Thanks for your advice. I am a new one for SAP development.
According to your advice, I use SAP_WAPI_DECISION_COMPLETE instead of SAP_WAPI_RESERVE_WORKITEM and SAP_WAPI_WORKITEM_COMPLETE, I get the same result.
test web dynpro application standalone, it's ok;in SAP workplace ,SAP_WAPI_DECISION_COMPLETE method's exporting parameter "return_code" is 1.
My code is following :
CALL FUNCTION 'SAP_WAPI_DECISION_COMPLETE'
EXPORTING
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    LANGUAGE             = SY-LANGU
    USER                 = SY-UNAME
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Navigating from one Web Dynpro app to another not belonging to same project

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Regards
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<a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/bd0e0401-0801-0010-aaab-d0e1742da383">https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/bd0e0401-0801-0010-aaab-d0e1742da383</a>
Server Side Eventing:
<a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/sdn/downloaditem?rid=/library/uuid/19e6e990-0201-0010-eca6-a62e342eaad3">https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/sdn/downloaditem?rid=/library/uuid/19e6e990-0201-0010-eca6-a62e342eaad3</a>
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Jhansi

Show BI report in a Web Dynpro App

Hello,
I would like to insert a BI report into a Web Dynpro App, this is because I have some specials requirements like using a dynamic tree for selecting the user desired report and pass two parameters to this report via URL for example, this is why I cant use standard BW iView to show this reports.
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Best regards.

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Cheers
Christian

Hi Christian,
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Hi There,
I would like to close a portal page by clicking a button of a Web Dynpro App which is inside an iView on that page.
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Bertil

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VS

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[Points guranteed for helpful answers]

Hello
If I unstedstand you correct, you can edit the J2EE server in the Developer Studio. Then you can publish your application on the new J2EE Server.
Press Window - Preferences - SAP J2EE Engine and change the Message Server Host and Message Server Port on the first choice "Please select an engine installed on remote host".
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Kristoffer Engh

Problem with FQDN when creating Web Dynpro App

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when create a WDA the url is set like this: HTTP://SAPVM1:8000/sap/bc/webdynpro/sap/z_wda_sample.
I defined the icm/host_name_full and the SAPLOCALHOSTFULL correct*, but it did not work. I have also restarted the system more than one time. I searched a lot, but found no solution here on sdn.
*correct means : sapvm1.mydomain.de
Even if I try to start a default wda example the wrong FQDN is set. But if I start the wda at the SICF (test service) it works, the FQDN is set right.
thx in advance.
Timo

Hi,
it seems that the httpurlloc table was the problem. The host entry in this table was no FQDN, I changed it into FQDN and it works. Now the generated url of the web dynpro applications is correct.
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See also
http://help.sap.com/saphelp_nw70/helpdata/en/42/d547ab30b6473ce10000000a114e5d/frameset.htm
Timo

Read only access to few users & RW to others for Web Dynpro App in EP

HI All,
I am creating few Iviews using custom development and able to display on the EP fine.. Now customers want to have red only to few users and read/write access to few users.. Can any one point me to the right documentation or the steps to be performed to acheinve this.
Thanks
Rajeev

Hi Rajeev,
Please create role/group for WD applciation which you want to assign read/read & write to the users. Access the role/group in WD application and restrict the access to UI Element properties.
Refer to below documents for protecting Access to the Web Dynpro Application Using UME Permissions.
[help.sap.com|http://help.sap.com/saphelp_nw04/helpdata/en/f3/a64d401be96913e10000000a1550b0/content.htm]
[Exmaple|http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/297f35cf-0201-0010-00b2-fe2f3e23d360?QuickLink=index&overridelayout=true]
Hope it will helps
Regards
Arun

How to enforce a login screen when running a Web Dynpro app?

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In Web Dynpro for Java there is a way to set authentication property to true and by that enforcing a login screen in case someone is browsing this application outside of an authenticated context (for example, the portal).
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Roy, are you familiar with that http://help.sap.com/saphelp_nw04s/helpdata/en/ff/c7de3fc6c6ec06e10000000a1550b0/frameset.htm ?

Hosting a Web Dynpro App physically present on another server

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