GP + Web Dynpro (Interface o Application)+ Web Services

Hi,
I have a scenario, in which I require to create a web dynpro, which will be utilized in a Callable Object, inside GP. This web dynpro will be like a form, which will be fed from 2 sources.
An external Web Service, that brings information from a website, spefically from a catalog.
Information filled by the user, in the fields of the form.
In short, the form is composed of information supplied by a Web Service and information completed by the user.
I would like to know if is possible to create a web dynpro, in NWDP, in order to be included in a Callable Object, inside a Worklfow in GP.
Regards.

Hi David,
yes, it is possible, you can create the callable object for the webdynpro and you put it into GP work flow..
Rgds
Srikanth

Similar Messages

Error while implementing a web service in web dynpro application

HI All,
I am trying to use a webservice in a web dynpro application.
Web service description:- This is a very simple application which takes two String inputs and when submitted displays the string in the concatenated form.
Web dynpro:- I used this web service in the web dynpro as an adaptive web service model.
The Layout design consists of two input fields which are mapped to the request fields
ex : - Request_Add.Add.S1 and Request_Add.Add.S2
A text area to display the response:- Request_Add.Response.AddResponse.Response
And a button which invokes the execute method
public void onActionWebserviceCall(com.sap.tc.webdynpro.progmodel.api.IWDCustomEvent wdEvent )
    //@@begin onActionWebserviceCall(ServerEvent)
    wdThis.wdGetWebserviceCompController().executeRequest_Add();
    //@@end
When I am trying to run the application I am getting error:-
Exception on execution of web service with WSDL URL 'http://<Host>:<Port>/EjbWebservice/Config1?wsdl' with operation 'add' in interface 'EjbWebserviceVi_Document'
Kindly reply.
Thanks
Neha

Hi,
Yes I have tested the web service in Navigator . The WSDL is also properly generated.
I have not publish the web service in UDDI but as per my understanding this is not necessary. please correct me if I am wrong.
Thanks
Neha

Unable to consume secured Web service from a Dynpro application

Hello,
I have followed <a href="http://help.sap.com/saphelp_nw04/helpdata/en/c3/bac36a469e4c75aba646077e71516d/frameset.htm">this tutorial</a>
in order to protect and consume a secured Web service from a Dynpro application using SAP logon ticket.
The problem is that after implementing everything needed I receive 401 Unauthorized when I am trying to consume it from the web dynpro side.
If I manually transfer the request the credentials, before the execute i.e:
modObj._setUser
modObj._setPassword
modObj.execute();
I am able to call it, meaning the dynpro application doesn't transfer these credentials to the Webservice even though it's authentication property is set to true.
Any idea how to solve it?
Roy
Message was edited by:
Roy Cohen

Try below steps
Add jars
o security.class
o tc/sec/destinations/interface
Setting WebDynpro project property
o Project>Properties>Web Dynpro References-->Interface references
 Name=tcsecdestinations~interface
o Project>Properties>Web Dynpro References-->Service reference
 Name=webservices
 Name=tcsecdestinations~service
Dynamically Set httpdestination and Call web service
final InitialContext ctx = new InitialContext();
final DestinationService dstService = (DestinationService)ctx.lookup(DestinationService.JNDI_KEY);
if (dstService== null)
throw new NamingException ("Destination service not available");
final Destination destination = dstService.getDestination("HTTP"," DestinationName");
// getting user name
Properties destprop = destination.getDestinationProperties();
String username = destprop.getProperty("USERNAME");
String password = destprop.getProperty("PASSWORD");
final HTTPDestination httpDestination = (HTTPDestination) destination;
HttpURLConnection httpConnection = httpDestination.getURLConnection();
String httpURL = String.valueOf(httpConnection.getURL());
Request_AdvLocationVer1ViDocument_getLocation obj=wdContext.currentRequest_AdvLocationVer1ViDocument_getLocationElement().modelObject();
obj._setUser( user );
obj._setPassword(pass);
obj._setEndPoint(httpURL);
obj.execute();
Rahul

Consume XI web service in web dynpro application

HI All,
I have scenario access web service in web dynpro java, which is created by XI ..Now I have WSDL file. Using that WSDL file I have imported web service model(Adaptive web service method) in my web dynpro java.
By following the PDF document = https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/b2bc0932-0d01-0010-6d8e-cff1b2f22bc7
I have created a Model as mentioned in the PDF.
Once model is created I have done the mapping from model to component controller, after that I need to execute the Web service model .For the execution I need to write a code in component controller :-
model class name = XIModel
XIModel obj = new XIModel();
Once I am done with the above coding , and when I try to run the application I get the following error :-
com.sap.engine.services.webservices.espbase.discovery.BaseIOException: Invalid Response Code 200 while accessing URL:http://atind037:50000/WSDL/GetPOPDF.wsdl. Response Message: OK. Content Type: content/unknown
Could you please help me with this at the earliest , as it is a urgent issue.
Regards,
Boopathi M.

Hi boopathi,
It seems your wsdl url is not correct. Put the http://atind037:50000/WSDL/GetPOPDF.wsdl
in your browser and check whether you are getting the WSDLDefinitions in xml format or not ?
In wsdl url put ? instead of .
URL : http://atind037:50000/WSDL/GetPOPDF?wsdl
call adaptive web services mit Parameter
Regards,
Mithu

Interfacing web services and RT applications

[First, sorry to the NI guys who helped me with this over the phone. It's not that I don't trust your input but in the multitude of counselors there is wisdom.]
If I want to interface my cRIO real-time control loop with the outside world using web services, how do you implement the interface between the web service and the RT app? If the RT app is included as part of the web service, will it start running at target boot time or must it be invoked using the web service?

Aaron--
What I have now is a web service only application--I only have one Build Specification and it is for the RESTful web service. I placed what typically would be my RT application code in the web service Source Files section without any URL mappings to go with it. Then I simply call the top level RT executable code from the web service by static reference and have it return without waiting for code execution to complete. At this point, my "RT app" is running on the cRIO and can communicate with the web service via functional globals.
The fact that my "RT app" does not run at boot time is not an issue in this application so I feel like I'm getting by on a special case. If I needed to run the RT application at boot time with headless operation, I think I would still be having a problem. I just find it a bit quirky that NI's web services put the developer in the situation that, in order to communicate with an RT executable, they must use shared variables (yuck) or implement a mini virtual network. Why not put the web service and the RT app into the same application space and be done with it?
Thanks,
kc64

Connect Web Dynpro Application to a Web service

Hi experts,
I am trying to connect a Web Dynpro application to a SOAP Web service.
I have downloaded the WDSL code and save it to a file in my hard disk.
I used the create model wizard (Import adaptive web service model) and created a model in my Web Dynpro application.
I have connected the component controller with the model and the view of the application to the controller.
All content node elements that have created automatically in the model, have in cardinality property the value 0..1.
I created input elements in the view but they are gray and not available (disabled).
The read only properity of the input elements has the value "false".
I tried to initiate the input element by putting the following code in wdDoInit() but with no luck.
wdContext.nodeRequest_ProcessTransaction().nodeProcessTransaction().nodeTransactionRequest().nodeHeader().nodeMerchantInfo().currentMerchantInfoElement().setAcquirerID("xxxx");
Can someone help with this?
Thanks in Advanced.

Hi,
After importing the model, you need to create the instance for the model. Instantiate the Request object and then set the input parameters. Then you have to call the execute function, then the model will be executed and you will get the data.
Also instead of putting the code which you have wriiten in init, you can use:
wdContext.nodeMerchantInfo().currentMerchantInfoElement().setAcquirerID("xxxx");
You can directly access the node, no need to traverse the whole hierarchy.
Regards,
Manoj

How can I create a web Service from my Web Dynpro Application ?

Hi,
Kindly let me know How I could create a "Web Service" with my Web Dynpro DC project.
Awaiting your responses.
Regards,
Mahesh

Hi Mahesh,
You can use the web services by creating the Model in web Dynpro
And if you want to publish your own web service then you have to create a EJB module and publish as a web service.
Thanks
Ninad

Consuming 3rd party web service in Java web dynpro application

Hi All,
I am working on a scenario where external(3rd party) web service has to be consumed in WD Java application. I am provided with WSDL file. Let me explain how I usually consume other webservices:
     Create model->AWS model->Remote Location/file System->provide url->create/choose service group->finish
     Then I would generate the code in custom controller by applying template
      I assign provider system as local for the service group in nwa.
This is normal process to me. I am struck with this 3rd party web service. Please share your ideas on the same. Any help is highly appreciated.
BR,
Manoj

I ve created a provider system pointing to where 3rd party WS resides. i am trying to connect through WSIL. While pinging that provider system, I don't see that particular WS(that I am gonna consume). And while assigning this Provider system to service group, processing state getting 'Failed'.
What could be reason?

How can I call a Web Service in a Web Dynpro Application??

Hi All,
does anybody hav links, tutorials or what not??
Thanks, JJJ

Hi Jesse,
You can do GET, PUT and POST using FormCalc, so you should be able to access a REST web service.
There is a example of accessing a RSS feed in this thread, http://forums.adobe.com/message/5695433#5695433
Regards
Bruce

Error while calling a web service in web dynpro through XI

Hello,
I was following a blog for Invoking Webservices using SAP XI
/people/siva.maranani/blog/2005/09/03/invoke-webservices-using-sapxi
I have done all the steps specified but when I import the wsdl file in web dynpro application and deploy the project I get the following error:
<b>"Exception on execution of web service with WSDL URL 'bankws_OUT_MI.wsdl' with operation 'bankws_OUT_MI' in interface 'bankws_OUT_MI'"</b>
where:
bankws_OUT_MI -
is the message interface name.
I have defined a web service in the integration reopsitory as follows:
<b>http://PEP:50000/XISOAPAdapter/MessageServlet?channel=:bankws:s_comm</b>
where
bankws --- service name
s_comm -
sender communication channel
selected 'bankws_OUT_MI' message interface from the given choices
'bankws_IN_MI' or 'bankws_OUT_MI'.
interface name: bankws_OUT_MI -
mesage interface name
Can anyone guide me how to proceed further. Also if possible can anyone send me some helpful documentation regarding how to call a web service in web dynpro through XI.
Thanks in advance.
Regards,
Imtool

hello everyone,
I made the whole scenario again and it is running succusfully in Xml spy. Now when i call the webservice in web dynpro... I get the following error:
<b>com.sap.engine.services.webservices.espbase.discovery.BaseIOException: Invalid Response Code 200 while accessing URL: http://PEP:50000/XISOAPAdapter/MessageServlet?channel=:OOMS_WS_OUT:CC_OOMS_WS_OUT. Response Message: OK. Content Type: text/html; charset=utf8. Body Content: <html> <head><title>MessageServlet</title></head> <body> <h3>Message Servlet is in Status OK</h3> <h3>Status information:</h3> Servlet com.sap.aii.af.mp.soap.web.MessageServlet (Version $Id: //tc/xi/645_VAL_REL/src/_adapters/_soap/java/com/sap/aii/af/mp/soap/web/MessageServlet.java#7 $) bound to /MessageServlet <br/>Classname ModuleProcessor: null <br/>Lookupname for localModuleProcessorLookupName: localejbs/ModuleProcessorBean <br/>Lookupname for remoteModuleProcessorLookupName: null <br/>ModuleProcessorClass not instantiated <br/>ModuleProcessorLocal is Instance of com.sap.aii.af.mp.processor.ModuleProcessorLocalLocalObjectImpl0 <br/>ModuleProcessorRemote not instantiated </body></html></b>
I have also made the entry in the visual administrator for metadata_dest and execution_dest.
Does anybody have an idea what mistake i am doing.
Thanks,
Imtool

Accessing XI Web Service in Web DynPro

Hi Experts,
I have a scenario wherein, I will have to access a Web Service that created in XI.
My Finding still now,
1. I have a web service which is created in XI System.
2. Created a Logical Destination in the Visual Administrator. We have given the wsdl URL, system ID, Client and Basic Authentication Information.
3. When we test the Web Service in the Visual Admin, we get a Message Reponse 200, but the content type says Unknown
4. When we test the Web Service in the SOAP Sonar Web Service Testing Tool, we are getting the correct solution
5. After that, we tried creating an Adaptive Web Service Model, using the WSDL URL.
6. When we deploy the application, we get the following error
Exception on creation of service metadata for WS metadata destination 'POItems' and WS interface 'POitem_WS_OUT'. One possible reason is that the metadata destination 'POItems' has not been properly configured; check configuration
When I tried to access a BAPI that is exposed as a Web Service by default, I end up in the following error
Exception on execution of web service with WSDL URL 'http://mycomp01:1001/sap/bc/soap/wsdl11?services=ZBAPI_POITEM_GETLIST&sap-client=800' with operation 'ZBAPI_POITEM_GETLIST' in interface '{urn ap-com ocument ap:rfc:functions}ZBAPI_POITEM_GETLISTPortType'
I have also tried to create a Deployable Web Service using the WSDL file in the Web Service Perspective. Once I deploy the ear file, it appears in the Visual Admin, but when I try testing it I get an error with Response Code 500
Note: I have tried to create an Adaptive Web Service model for the following Link : http://www.webservicex.net/WeatherForecast.asmx?wsdl that is availbale in the net using a logical destination that refers to the same WSDL URL, the application is working fine.
Server/Studio Config details
J2EE - 7.0
NWDS 2004s SP 12
JDK - 1.4.2_09
Please suggest a solution for the above problem or it would be helpful if you can give links that helps in creating a Web DynPro Application to access the XI Web Service. We have followed as per this Link :
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/b2bc0932-0d01-0010-6d8e-cff1b2f22bc7
Regards,
Mathan MP

Vaishali,
never did this before, but some general ideas:
Do you have an WSDL for that web service? Then simply use your NWDS and select New --> Portal Service --> From WSDL (or similar). What I mean is the following: NWDS can read WSDL files and will automatically generate a proxy for you that actually generates an ordinary portal service. This portal service then can be called by standard means in SAP EP.
Regards,
Dominik

Calling an ABAP web service from a web dynpro

Hello,
I based my application on the: "Creating an E-Mail Client Using Web Dynpro's Adaptive Web Service Model" tutorial but when invoking the web service I get this type of error:
Exception on execution of web service with WSDL URL 'http://mySAPBackendServer:1080/sap/bc/soap/wsdl11?services=Z_MY_WEB_SERVICE&sap-client=XXX&sap-user=XXXX&sap-password=XXXX' with operation 'Z_MY_WEB_SERVICE' in interface '{urn:sap-com:document:sap:rfc:functions}Z_MY_WEB_SERVICEPortType'
Is this because I used Adaptive Web Service Model instead of Adaptive RFC Model? Or is it due to something else?
thanks a lot,
Tanguy Mezzano

The function module is remote-enabled, it is exposed thus as a web-service, I can retrieve it with webservicebrowser application.
Shantoo:
I have tried to create a Web Dynpro with the RFC method to create the model but when I run and deploy I get a deployement error with:
Result
=> deployment aborted : file:/C:/DOCUME~1/..Webservice.ear
Aborted: development component 'WebDynpro_Webservice'/'local'/'LOKAL'/...'0':
Caught exception during application deployment from SAP J2EE Engine's deploy service:
java.rmi.RemoteException: Cannot deploy application local/WebDynpro_Webservice.. Reason: Clusterwide exception: Failed to deploy application local/WebDynpro_Webservice. Check causing exception for details (trace file). Hint: Are all referenced components deployed and available on the engine?; nested exception is: com.sap.engine.services.deploy.container.DeploymentException: Clusterwide exception: Failed to deploy application local/WebDynpro_Webservice. Check causing exception for details (trace file). Hint: Are all referenced components deployed and available on the engine?
(message ID: com.sap.sdm.serverext.servertype.inqmy.extern.EngineApplOnlineDeployerImpl.performAction(DeploymentActionTypes).REMEXC)
Deployment exception : The deployment of at least one item aborted
Anyway I want to use the web service model but I get the excepation stated in my first post.
Vishal:
your link doesn't lead to the a related thread...
Thanks for your help,
Tanguy

Consume Web Service in Web Dynpro

Hi Experts,
I´m currently trying to learn web dynpro development.
Scenario: I have one component which embed two views. One view is for enter customer number and in the other view I will see the name of the customer. The name of this customer is provided in a sap erp2005. I have develop a function modul and wich gave me the appropriate data(customer name). Then I create a web service base on this function module.
When I test this web serviec in WSNavigator, I get the customer name, so the web service is working well.
My Problem is: I can´t invoke this Web Service in Web Dynpro. My steps to invoke web service were: create a model with the web service wsdl and then I add this model in the component (in "Used Models").
I have create a application and assign it to the component. When I "Deploy new archive and Run" the application I be come the error: "Configuration not found for application: demo.sap.com/test_wd3,serviceRefId:7fecf23b-0895-48f3-9902-0e7015a705c3. Please check the configuration details from the NWA. You may have not assigned the Service Group to a Provider System, or the generation of the configuration has failed."
What do I have to consider or to set up?
It is right to assign the input field to the context parameter?
PS: I have followed the steps in this tutorial, but I don´t use XI or PI
http://www.riyaz.net/blog/xipi-consuming-xi-web-services-using-web-dynpro-part-ii/technology/sap/7/
best regards
Anna von Landsberg
Edited by: Anna_von_Landsberg on Dec 8, 2010 4:48 PM

Hi,
I have the following message error:
Exception on execution of web service with WSDL URL
'http://j2eeserver:port/xxxx/Config1?wsdl'
with operation 'RequestNode' in interface
'urn:xxxxx'
When i debugged it, I found the following error:
Cannot find the required parameter [unTipoProducto] in request message content.
What is wrong?, I pasted the code of my method, that call to web service in the component controller.
public void Alta_Entrega( )
    //@@begin Alta_Entrega()
     String tipoProducto = wdContext.currentAlta_EntregaElement().getUnTipoProducto();
     Request_Alta_Entrega entregaMO = wdContext.currentRequest_Alta_EntregaElement().modelObject();
     if (!wdContext.currentAlta_EntregaElement().getUnTipoProducto().equalsIgnoreCase("")){
          IWDMessageManager manager = wdComponentAPI.getMessageManager();
          if (logger.beDebug()) {
            entregaMO.wdSetInvocationLogEnabled(true); //switch on logging for this model object
          try{
               entregaMO.setInvokerProperty(Stub.USERNAME_PROPERTY,"xxx");
               entregaMO.setInvokerProperty(Stub.PASSWORD_PROPERTY,"xxx");
               entregaMO.execute();
               wdContext.nodeResponse().invalidate();
               wdContext.nodeAlta_Entrega().invalidate();
          }catch (Exception e){
               manager.reportException(e.getMessage(),false);
          logger.debugT(entregaMO.wdGetRequestLog()); //request log (HTTP header + SOAP request)
          logger.debugT(entregaMO.wdGetResponseLog()); //response log (HTTP header + SOAP response)
          logger.debugT(entregaMO.associatedModelClassInfo().getModelInfo().toString()); //model metadata in XML format
          logger.debugT(entregaMO.toString()); //model object tree in XML format (= model context node content)
I hope you can understand me, because my english is very bad!!.
Thank you.

Problem in calling XI generated Web Service via Java Web Dynpro

Hi experts,
I have problems with calling a web service, which was created by XI. I have already tested the web service with Altova XMLSpy. The Web Service works fine.
But when embedding this web service into Java Web dynpro application no message flow is given. I have two views one Selection View and one Result View which should show the answer sent by RFC-Call.
<b>My Settings in NWDS:</b>
During configuration of web dynpro I have choosen 'Import adaptive Web Service Model' --> Select wsdl file via local file system --> 'no logical destinations - use WSDL URL for metadata retrieval and web service execution'.
The model is also not shown in diagram view although I have added into the diagram.
The web service was created on XI 7.0.
Should I do any other settings e.g. in Visual Administrator, Web Dynpro Content Administrator?
So can anybody help me.
Thanks a lot.
Regards,
Mario

Hi Aviad,
thanks for your fast reply.
But in Web Service Navigator my Web Service is not shown, because I used the SOAP Adapter.
<b>My Web Service link:</b>
http://<host>:<port>/XISOAPAdapter/MessageServlet?channel=:SRV_GBD_WS_GET_DEB_DETAIL:CC_GBD_WEBSERVICE_SENDER&version=3.0&Sender.Service=&Interface=%5E*
During executing Web Dynpro I got following errors:
1. 'The system cannot find the path specified'.
2. com.sap.tc.webdynpro.model.webservice.exception.WSModelRuntimeException: Exception on creation of service metadata for WSDL URL
Regards,
Mario

Web Dynpro and Web Service Error

Hi experts,
I followed the blog u201CDeveloping Web Services in J2EEu201D /people/lakshmi.prasad5/blog/2009/06/30/developing-web-services-in-j2ee-and-consuming-in-sap-netweaver-visual-composer-part1 and is very well explained and easy to follow. The author does two Methods and the final Web Service concatenates input fields. One Method concatenates two words and the second Method concatenates three words, the final result is the concatenation of the words in both cases. The Web Services is working fine I already tested and do it in a Visual Composer Project. Now, I want to Execute the Web Service in a Web Dynpro for Java WD4J Project. I did my application, my model (ConcatinationWSModel) and my View. I mapped the class that concatenates two words and is call u201CRequest_ConcatinationOfStringu201D. The problem comes with the Execution of the Web Service and is showing me the next exception:
u201Ccom.sap.tc.webdynpro.model.webservice.api.WDWSModelExecuteException: Exception on execution of web service with WSDL URL 'http://<host>:<port>/WebServiceconCat/Config1?wsdl ' with operation 'concatinationOfStrings' in interface 'WebServiceconCatVi_Document'u201D
My method DoInit (Set SAP & UK):
public void wdDoInit()
    //@@begin wdDoInit()
          ConcatinationWSModel model = new ConcatinationWSModel();
          Request_ConcatinationOfStrings input = new Request_ConcatinationOfStrings(model);
          wdContext.nodeRequest_ConcatinationOfStrings().bind(input);
          ConcatinationOfStrings input2 = new ConcatinationOfStrings(model);
          wdContext.nodeConcatinationOfStrings().bind(input2);
          input2.setFString("SAP");
          input2.setSString("UK");
          ConcatinationOfStringsResponse input3 = new ConcatinationOfStringsResponse(model);
    //@@end
My method onAction is:
public void onActionExecuteWS(com.sap.tc.webdynpro.progmodel.api.IWDCustomEvent wdEvent )
    //@@begin onActionExecuteWS(ServerEvent)
     try {
          wdContext.currentRequest_ConcatinationOfStringsElement().modelObject().execute();
wdContext.nodeRequest_ConcatinationOfStrings().invalidate();
     catch (Exception ex)
                    // TODO: handle exception
                    //        If an exception is thrown, then the stack trace will be printed
          wdComponentAPI.getMessageManager().reportException("The error is: " + ex,true);
    //@@end
I believe that the error is in the way I am executing the Web Service but I am not sure. Any help will be appreciated.
Best Regards
David Corté

Hi Jesus,
Your answer was very helpful..... The problem was with my code. The way I was executing my web service was wrong..... There are two things we have to keep in mind while we invoke any web service.... The doinit method and the execution sentence.....
public void wdDoInit()
    //@@begin wdDoInit()
     model = new ModelWebServcie();
     Request_ConcatinationOfStrings input = new Request_ConcatinationOfStrings(model);
     ConcatinationOfStrings input2 = new ConcatinationOfStrings(model);
     input.setConcatinationOfStrings(input2);
     wdContext.nodeRequest_ConcatinationOfStrings().bind(input);
    //@@end
and the exection method:
public void ExecuteWebService( )
    //@@begin ExecuteWebService()
     try {
                    wdContext.currentRequest_ConcatinationOfStringsElement().modelObject().execute();
                    wdContext.nodeResponse().invalidate();
               catch (Exception ex)
                         // TODO: handle exception
                         //        If an exception is thrown, then the stack trace will be printed
               wdComponentAPI.getMessageManager().reportException("El error en ExecuteWS es: " + ex,true);
               wdComponentAPI.getMessageManager().reportSuccess("El Web Service fue ejecutado con exito");
    //@@end
Declare member variable for model instance:
//@@begin others
private ModelWebServcie model;
//@@end
Thank you for everything...
Regards
David Corté

GP + Web Dynpro (Interface o Application)+ Web Services

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