Webservice inside Web Dynpro for Abap Method - Error

[Former Member]

Hi Experts,

I am building a Webservice inside a Web Dynpro for Abap Application and have a problem. The function module that I use for the webservice runs without any problems. The webservice runs to in a normal report. But when I use the same webservice in the web dynpro method, it doesn't work. There comes the following error:

Fehler (id=SOAP:14): Unexpected element -el=html ns=

I debugged the whole application and found the exact place where the error occurs.

It is in the class CL_SOAP_MESSAGE in the method GET_METHOD. The exact code line is:

if l_tag->qname-name ne if_soap_message~co_soap_env.

raisesoapunexpectedelement 1 l_tag->qname-name l_tag->qname-namespace. "#EC NOTEXT

endif.

the unexpected element is "html" in the variable qname-name.

if_soap_message~co_soap_env has the value "Envelope".

What can that be?

I don't know what to do. THanks a lot.

Best Regards

Ingmar

[UweFetzer_se38 · Accepted solution]

Hi Ingmar,

mostly you will get this message, if you don't supply user/password. Try to maintain a HTTP-Connection in SM59 with user/password and test the servive again.

Regards, Uwe

[Former Member · Accepted solution]

Hi Uwe,

thanks for your answer! When I create a HTTP-Connection in SM59, I have to give a Verbindungstyp, a Zielmaschine and a Servicenr. . What have I to insert there? I don't know, how to fill these fields so that I could have success fpor my Webservice in WebDynpro.

Thanks

Ingmar

[UweFetzer_se38 · Accepted solution]

Hi Ingmar,

instead entering the URL in LPCONFIG you maintain the values in SM59 and only refer to the entry of SM59 in LPCONFIG.

Connection Type (Verbindungstyp): H (HTTP Connection to ABAP System)

Target Host (Zielmaschine): the hostname or IP address of your target system without Port number

Service No: the Port number of your target system (the number behind the ":" of the URL)

You can enter the path to the target service in either SM59 OR LPCONFIG.

Regards, Uwe

[Former Member · Accepted solution]

Hi Uwe,

I tried to follow your explanation, but I have problems with them. Where do I get the target host? I took the url out of my browser that I got, when I used the WSADMIN and then Web Service -> WSDL... But there I don't have an URL with a port, that I could erase. For example I had something like that:

http://XXXXXXX/sap/bc/srt/rfc/sap/Z_ITS_DI_PLM_CP_SEARCH_ORD_200?sap-client=200&wsdl=1.1

That I put into the SM59 target host with Port 80 because I didn't know another number. Always I get the message ICM_HTTP_CONNECTION_FAILED. Could you please describe the exact steps for getting a successfull connection if possible?

Thanks a lot!

Best Regards

Ingmar

[UweFetzer_se38 · Accepted solution]

Hi Ingmar,

In WSADMIN you can create a WSDL of the function. Please scroll down to the end of the WSDL. There is a line like this:

<soap:address location="http://erp.xxx.sap.com:80/sap/bc/srt/rfc/sap/....

erp.xxx.sap.com is the traget host

80 is the port

and /sap/bc/srt/rfc/sap is the path, which you can enter in SM59 OR LPCONDIG.

Rgds, Uwe

[Former Member · Accepted solution]

Sorry that my answer comes so late!! Perfect, your idea works!!

But now I have another problem. While the same debugging process I get another exception CX_SOAP_FAULT. The reason for it is in the class CL_SOAP_XP====================CP in the method XP_READ_TAG. There is the code

call 'XRfcConverter'

id 'METHOD' field tsxp_xp_read_tag

id '%_XP_REF' field my_xp_ref

id 'XMLTAG' field my_tag.

my_tag is a deep structure with the component NAME. And this NAME is a CString and ist set while the code above with "Fault". That "Fault" causes the thrown exception. Why comes the "Fault" to NAME?

Thats my problem. What can that be?

Thanks a lot again!!

Best Regards.

Ingmar

Edited by: Ingmar Kroll on Feb 18, 2008 4:15 PM

[UweFetzer_se38 · Accepted solution]

Hi Ingmar,

maybe the error text inside the exception class can help you: you can read the text of the exception with the methods IF_MESSAGE_{GET_TEXT and IF_MESSAGE}GET_LONGTEXT.

Rgds, Uwe

[Former Member]

Hi Ingmar.

I am not the expert in this area, but when I was reseacrhing how to use WebServices in WDA I just created a proxy for a web service and built a wrapper FM for this proxy. This worked without any problems.

Cheers,

Sascha

[Former Member]

Sorry Sascha,

but what do you mean exactly with wrapper Function Module? I did not do this before.

Thanks!

Best Regards

Ingmar

[Former Member]

Hi Ingmar.

I am not sure how you call the web service. What I did was generating a proxy:

http://help.sap.com/saphelp_nw04/helpdata/en/86/58cd3b11571962e10000000a11402f/content.htm by using the URL to a WSDL file. When I remember correctly you get a proxy class.

And with wrapper i mean that i created a function module which I called from WD4A. In this FM i created the proxy object and performed the WS call.

How do you call the webservice?

Cheers,

Sascha