WebService Error

[Former Member]

Hi All,

I am trying to invoke a webservice through webdynpro. I created a model and gave the url of wsdl. I am not using any logical destinations. When i ping the WSDL, it is working fine. I give a numeric value as input and gives displays the same value as response.

Component controller init

try

{

Value model = new Value();

Request_Data req = new Request_Data(model);

Data dat = new Data(model);

dat.setValue(2);

req.setData(dat);

wdContext.nodeRequest_Data().bind(req);

}

catch(Exception e1)

{

wdComponentAPI.getMessageManager().reportSuccess("Error comp"+e1.toString());

}

-

---

public void executeXacute( )

{

//@@begin executeXacute()

try

{

wdContext.currentRequest_DataElement().modelObject().execute();

wdContext.nodeResponse().invalidate();

}

catch(Exception e)

{

IWDMessageManager manager=null;

manager.reportException(e.getMessage(),true);

}

View

try

{

wdThis.wdGetMytest_compController().executeXacute();

}

catch(Exception e)

{

wdComponentAPI.getMessageManager().reportSuccess("Error view"+e.toString());

}

But it is throwing Error

"Error viewjava.lang.NullPointerException".

What could be the Problem? Why null pointer Exception happens? Can anyone help me out in this?

Thanx and Regards,

Divya

[Former Member · Accepted solution]

Hi,

The error is in the catch block of executeXacute() method.

IWDMessageManager manager=null;

manager.reportException(e.getMessage(),true);

Here manager is null and you are trying to call reportException() method. That is why it is raising null pointer exception.

Regards,

VJR.

[Former Member · Accepted solution]

Hi VJR,

Thanx for the reply. The null pointer Exception is becoz of that.

Now i am getting the Error

"Error in excecuteException on execution of web service with WSDL URL 'http://skvekd00:50500/value/Config1?wsdl' with operation 'data' in interface 'valueVi_Document' ".

node Data is a model node.

How can i resolve this Error?

Thanx and Regards,

Divya

Edited by: Divya V on Dec 10, 2008 11:13 AM

[Former Member · Accepted solution]

Hi Divya,

Print the exeception cause (ex.getCause()) to get more details.

Regards,

VJR.

[Former Member · Accepted solution]

Hi,

I am getting the following Error now.I am not using anuthentication in webservice. It is set to false.

Error in excecutejava.rmi.RemoteException: Invalid Response Code: (401) Unauthorized. The requested URL was:"http://skvekd00:50500/value/Config1?style=document"; nested exception is: com.sap.engine.services.webservices.jaxrpc.exceptions.InvalidResponseCodeException: Invalid Response Code: (401) Unauthorized. The requested URL was:"http://ssvepd00:50000/value/Config1?style=document"

Thanx and Regards,

Divya

[Former Member · Accepted solution]

Hi Divya,

The webservice which you are executing requires username and password.

If you are using Adaptive webservice model then pass the username and password like below.

wdContext.currentXXXXElement().modelObject().setInvokerProperty(javax.xml.rpc.Stub.USERNAME_PROPERTY,"username");

wdContext.currentXXXXElement().modelObject().setInvokerProperty(javax.xml.rpc.Stub.PASSWORD_PROPERTY,"password");

Regards

VJR.

[Former Member · Accepted solution]

HI VJR,

Thanx a lot...my problem is solved. I gave username and password.

But could you please explain me why this authentication of username and password is required.

Already i have deployed the web service in server and i am giving the password for deployment in server know. Then why should the user name and password be provided?

Thanx and Regards,

Divya

[Former Member · Accepted solution]

Hi Divya,

The webservice which you are using is secured one. Which means, only authenticated persons can use this webservice by providing the valid credentials.

The password which you have given while deployment was SDM password. And the password which you are supplying in webdynpro application is for authenticating the webservice.

Hope it is clear.

Thanks & Regards,

VJR.

[Former Member · Accepted solution]

Hi VJR,

Thanx for the reply. But how is that The webservice which used is a secured one?

In Webservice - properties "Features". i gave Authentication - "No Authentication". Could you please tell me how The webservice used is a secured one?

Thanx and Regards,

Divya

[Former Member · Accepted solution]

Hi Divya,

Did you create webservice using NWDS? If so while creating the webservice, what is the value you have selected for Default Configuration Type? If it is "Basic Auth SOAP", it requires username and password to execute the webservice. If it is "Simple SOAP" no authentication required.

Regards,

VJR.

[Former Member · Accepted solution]

Hi VJR,

Thanx Got it. Yah i am using Basic Auth SOAP, where authentication is required.

Thanx.

Regards,

Divya

[lokesh_kamana]

Hi,

Can you tell me the node hirerchy which you are having in the context.

So that it can help you?

Thanks & Regards,

Lokesh

[Former Member]

Hi Lokesh,

-Context

- Node - Request Data

- Node - Data

Attribute - Value (Input)

- Node - Response

- Node - DataResponse

Attribute - Response (Output)

Main node is request data. Under that 2 subnodes data and response.

Inside Data 1 attribute called value. Inside Response, a subnode called "DataResponse" and a attribute called as response.

This is the node hierarchy.

Thanx and Regards,

Divya

Edited by: Divya V on Dec 10, 2008 10:38 AM

Edited by: Divya V on Dec 10, 2008 10:38 AM

Edited by: Divya V on Dec 10, 2008 10:38 AM

[Former Member]

Hi,

Is the node:data is value node or model node?

Regards,

Goriga