call webservice from abap

[Former Member]

Hello,

I use the following code to call web service from abap, but in the method "http_client->receive"  i see "http_communication_failure = 1" .

this is the code:

DATA: SMS_TEXT       TYPE STRING,
       SMS_TEXT_UTF   TYPE STRING,
       SEND_STRING    TYPE STRING.

DATA: w_string TYPE string ,
       w_result TYPE string ,
       r_str    TYPE string .

DATA: result_tab TYPE TABLE OF string.

DATA: http_client    TYPE REF TO if_http_client.

SEND_STRING = 'http://www.currencyserver.de/webservice/currencyserverwebservice.asmx/getDollarValue?provider=AVERAG...'.

CALL METHOD cl_http_client=>create_by_url
   EXPORTING
     url                = SEND_STRING
   IMPORTING
     client             = http_client
   EXCEPTIONS
     argument_not_found = 1
     plugin_not_active  = 2
     internal_error     = 3
     others             = 4.

if sy-subrc = 0.
   CALL METHOD http_client->send
     EXCEPTIONS
       http_communication_failure = 1
       http_invalid_state         = 2.

   CALL METHOD http_client->receive
     EXCEPTIONS
       http_communication_failure = 1
       http_invalid_state         = 2
       http_processing_failed     = 3.
   if sy-subrc = 0.

     w_result = http_client->response->get_cdata( ).
     REFRESH result_tab .
     SPLIT w_result AT cl_abap_char_utilities=>cr_lf INTO TABLE result_tab .
     loop at result_tab into w_result.
       write :/ w_result.
     endloop.
   endif.
endif.

Any Idea?

thanks.

Ouail.

[former_member241226]

Hi

Please check the trace files of icm/icmbnd in transaction SMICM.

Refer to below posts for more information:

http://scn.sap.com/thread/1836067

http://scn.sap.com/thread/1894515

http://scn.sap.com/thread/535031

Thanks

[Former Member]

*&---------------------------------------------------------------------*

*& Report  ZBS_TEST

*&

*&---------------------------------------------------------------------*

*&

*&

*&---------------------------------------------------------------------*

REPORT zbs_test.

*Data

DATA: xml_doc TYPE REF TO cl_xml_document,

       node TYPE REF TO if_ixml_node,

       value TYPE string,

       lv_result TYPE string,

       lv_service TYPE string,

       lo_http_client TYPE REF TO if_http_client.

lv_service = 'http://www.currencyserver.de/webservice/currencyserverwebservice.asmx/getDollarValue?provider=AVERAG...'.

*Call method to invoke web service

cl_http_client=>create_by_url(

   EXPORTING

     url                = lv_service

   IMPORTING

     client             = lo_http_client

   EXCEPTIONS

     argument_not_found = 1

     plugin_not_active  = 2

     internal_error     = 3

     OTHERS             = 4 ).

lo_http_client->send(

   EXCEPTIONS

     http_communication_failure = 1

     http_invalid_state         = 2 ).

lo_http_client->receive(

   EXCEPTIONS

     http_communication_failure = 1

     http_invalid_state         = 2

     http_processing_failed     = 3 ).

*Create XML parser object using xml returned from web service

CLEAR lv_result.

lv_result = lo_http_client->response->get_cdata( ).

CREATE OBJECT xml_doc.

xml_doc->parse_string( stream = lv_result ).

*Use XML parser to get initial row and then loop through all rows

CALL METHOD xml_doc->get_first_node

   RECEIVING

     node = node.

*Loop through xml document extracting the data into an internal table

WHILE NOT node IS INITIAL.

   CLEAR value.

   CALL METHOD node->get_value

     RECEIVING

       rval   = value.

   WRITE: / 'Value', value.

   CALL METHOD node->get_next

     RECEIVING

       rval = node.

ENDWHILE.

Try this code it should work to retrieve your values from the webservice.

[Former Member]

thank u Bradley,

When i use your code, i see " http_communication_failure = 1 " and i receive this output:

Value Application Server Error####body { font-family: arial, sans-serif;}######

Any Idea?

[jimguo]

Hi,

I suggest you create consumer proxy via SE80 and logical port to consume the external web service. The following link might be helpful.

http://wiki.scn.sap.com/wiki/display/ABAPConn/How+to+configure+a+Service+Consumer

Thanks.

Jim

[Former Member]

thank u.

i can use tcode "WSCONFIG ", but i don't know the steps.......

the SOAMANAGER transaction code doesn't exist in the System !!!

any help?

[jimguo]

Hi,

If you are using older release, you can try LPCONFIG as described in the following link:

SAP Library - ABAP Workbench Tools

Thanks.

Jim

[Former Member]

our release is SAP ECC 6.0.

[jimguo]

Hi,

As of SAP_BASIS 700 SP14, you can use SOAMANAGER.

If you are on older SP level. You need to use LPCONFIG.

Thanks.

Jim

[Former Member]

i don't know wish values i have to fill in ?