Figure 1 shows how the CICS® Web support
processes a request from a Web client that is connected to the IBM® HTTP Server.
Figure 1. Processing a request from the IBM HTTP Server
- The Web client constructs an HTTP request which is passed across the network
to Communications Server.
- Communications Server relays the request to IBM HTTP Server.
- IBM HTTP
Server calls the CICS WebServer plug-in.
- The CICS WebServer
plug-in constructs a request for the CICS business logic interface, and passes
it to CICS using
the External CICS Interface
(EXCI).
- The CICS business
logic interface invokes the requested CICS application program, and returns any
output in the COMMAREA.