Call to WS from abap program

Question

Hi,
I Create WS in BE1 (Server ) and i want to call it explicitly via Code from other backend BE2 (Client) .
I followed  this procedure
1. Create WS on the Target system (in the Server).
2. Generate proxy on the client (in the client).
3. Create logical port Via Lpconfig (in client).
I use this code to call to the service :
DATA:  lv_port_name          TYPE srt_lp_name,
       lv_text               TYPE string,
       lt_return             TYPE bapirettab.
DATA: lref_client_proxy TYPE REF TO z_ser_test_perf,
      in TYPE  z_ser_tst_per,
      out TYPE z_ser_tst_per_r.
* Get Default Logical Port for Proxy
CONSTANTS: lc_proxy TYPE srt_lp_proxyclass VALUE 'ZHCO_SER_T_PER'.
in-user = 'AST'.
in-work_id = '00570538637'.
CALL METHOD cl_srt_lp_maintenance=>get_default_port_by_proxy
  EXPORTING
    proxyclass = lc_proxy
  RECEIVING
    lp_name    = lv_port_name.
TRY.
    CREATE OBJECT lref_client_proxy
      EXPORTING
        logical_port_name = lv_port_name.
  CATCH cx_ai_system_fault.
ENDTRY.
TRY.
    CALL METHOD lref_client_proxy->z_tst_performance
      EXPORTING
        input  = in
      IMPORTING
        output = out.
catch CX_AI_SYSTEM_FAULT into lr_error.
lv_message = lr_error->get_text( ).
  CATCH cx_ai_application_fault.
ENDTRY.
In the method lref_client_proxy- i get exception :
SOAP:14 Unexpected element -el=definitions ns=http://schemas.xmlsoap.org/wsdl/
Does anyone have an idea how to avoid this  exception?
P.S.
I also create logical port via Soamanager but the first and the second method don't find it (i saw the entry in table SRT_CFG_CLI_ASGN ) and when i call to the third method alone i get dump for null reference.
Best Regards
Nina
Edited by: Nina C on May 5, 2009 10:33 PM

Answer 1

hi , nina
the null poitnexception is that u r referring to the logicl port while creatign the object
dotn pass anything , just use
create object  proxy name
Data : l_proxy type ref to ZSTRCO_ZSTARWEB,
        lo_sys_exception   TYPE REF TO cx_ai_system_fault,
       out type ZSTRZSTAR_RESPONSE,
       in type ZSTRZSTAR,
       it_controller type PRXCTRLTAB,
       wa_controller type prxctrl.
       create object l_proxy.
        in-a =    8.
        in-b = 4.
      TRY.
       CALL METHOD l_proxy->zstar
         EXPORTING
           input  = in
         IMPORTING
           output = out
.        CATCH cx_ai_system_fault into lo_sys_exception .
       ENDTRY.
write : out-c.
i never used logical port , i created it but never used
just instantiate the object and pass the input an dout put paramters , the logical port will be picked form run time
and u can test the proxy from se80
1) just double click on th eproxy name in SE80 , u can select the package in which u created the pproxy  , then under enterprise services --> client proxy and ur proxy name
just test from there u get a pop up of  test service consumer and select the logical port from  drop down and seelct the generate template data  and execute it , u will get a screen where the input values will be autmatically proposed and then u execute from there u wil get the output.
2) seond method is when in SE80 when u select the proxy u can see  the prxy name in the prpoerties which will be        Proxy Class (generated) , then test this class  by using execute button  u get a screen where u haev to instantiate the class , give the logical port name and click the instance button, then ur method wil be shown execute it and u get ur input paramters just clikc them, give the values and come back and execute u will get the output
hope it solves ur prob
regards
afzal