Java RFC Connection: Step by step
my first goal is to achieve a remote function call from Java to SAP or the other way.
My first attempt is a Java application which does a RFC to a SAP ABAP function that returns me some database data, but more about that later.
The first thing where i already fail is to build up a simple connection between Java and SAP.
I tried it with JCo v2.1.x and JCo v3.x (Which version should i prefer? are there advantages, disadvantages?)
Here are the two approaches:
JCO.Client myConnection = JCO.createClient("001", "***", "****", "DE", "***", "00"); myConnection.connect(); ... ...
I get a "(103) RFC_ERROR_LOGON_FAILURE: Userid or password incorrect". I put in my normal SAP GUI account. Its not an admin account but i can create reports etc in the ABAP Editor.
I checked the spelling several time and it should be ok. Why does it say incorrect user or password?
Is this possible because of insufficient rights?
I just tried the "StepByStepClient" example included in the sapjco3 download and i saw that every connect function begins with a "JCoDestination destination = JCoDestinationManager.getDestination(String);" line.
But what exactly does this getDestination function do? What string do i pass there? In the example is it JCoDestinationManager.getDestination("ABAP_AS_WITHOUT_POOL"); but then i get the error: ""(106) JCO_ERROR_RESOURCE: Destination ABAP_AS_WITHOUT_POOL could not be created:"..
Can anyone explain me how this works?
Thanks in advance!