CICS Transaction Gateway V5 The WebSphere ... - IBM Redbooks

4. The CICS TG Java classes return data from the CICS program to the servlet.
5. The servlet forwards to a JSP, which displays the response to the end user.
Web browser
Figure B-2 Flow of CTGTesterECI
CTGTesterECI
1 welcome
JSP
2
servlet
CTGTesterECIServlet
3
5
4
success
results
JSP
eci error
error
JSP
We developed and tested our application using WebSphere Studio Application
Developer Integration Edition. We chose this environment instead of VisualAge
for Java V4, because it supports editing of EJB 1.1 deployment descriptors, and
can generate deployment code suitable for the WebSphere Application Server
V4 container. It can export deployed application files directly, ready for installation
into WebSphere Application Server V4. These application files include J2EE
enterprise archives (EAR files), Web application archives (WAR files), and EJB
1.1 deployed JAR files. Application Developer also provides a suitable local test
environment for testing your application components because it uses
WebSphere Application Server Advanced Single Server V4.
As an alternative to using Application Developer, you can use VisualAge for Java
in combination with the Application Assembly Tool (AAT) to produce deployable
enterprise beans for WebSphere Application Server Advanced Edition.
HTML form
The HTML form is in index.jsp. It consists of a number of fields where data for the
application is entered. The fields are explained in Table B-1 on page 339.
Table B-1 Fields in the HTML form, CTGTesterECI
Field Name Purpose
exception
exception
JSP
CICS program name funcName Program on CICS to call
CICS TG
Java
classes
Appendix B. Sample applications 339