The Web Dispatcher and the SAP J2EE Engine
You can utilize features of J2EE in your application if you integrate the SAP J2EE Engine into your system. The integration is a fairly straightforward process. You’ll need to configure the Web AS so that it can process both ABAP and J2EE requests or so that it can process only J2EE requests. Your choice depends on whether you have a dedicated system for J2EE.
In order to used the J2EE Engine, you’ll need to activate /sap/public/icman and /sap/public/icf_info. Icman is the service ICM uses to forward requests to the J2EE server. Icf_info supplies the web dispatcher with various information needed to carry out load balancing.
When a request is received, the web dispatcher decides if it should be sent ...
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