Accessing SAP R/3 from Java

Question

What do I have to do to write a Java Interface for SAP R/3. I do not have experience with SAP, and they are very slow in their answers, so I just ask here for your experience with them.

Can anyone create software that uses SAP for free? Do we have to license the Java Connector? Do we have to become SAP partners? How much is it?

Thanks for all information you have.

Answer 1

I have used the SAP JCo connector, pretty sure it is free to use...

http://help.sap.com/saphelp_nw04/helpdata/en/6f/1bd5c6a85b11d6b28500508b5d5211/content.htm

Answer 2

have you tried the SAP Java Resource Adapter?

http://help.sap.com/saphelp_nw04/helpdata/en/6f/1bd5caa85b11d6b28500508b5d5211/content.htm

Answer 3

You can always try to access SAP from any platform by calling BAPIs as web services, if the overhead of a web service is not a main concern. No additional software or licenses are needed.

Developing ABAP WebServices (via BSP)