View
217
Download
3
Embed Size (px)
Citation preview
CIS 365
Vandana Janeja
Nov 27th 2001
Connecting Cobol programs to Other Languages-Visual Basic, Java,HTML
No Main option
Make a DLL instead of an EXE
Java Calling a Cobol programSimplest method:
• Create a COBOL program
• Generate its Executable
• Write a Java program with a runtime exec object which calls the COBOL exe file.
Client Browser
Web Server hosting the Servlet
Server Response Object
Client Request Object
Session Object
A general HTTP scenario
Client Server Architecture and COBOL
Three tiered / N- tiered architecture
ClientHTMLXHTMLAppletApplications
Application Server
Web containerServlets
Application Container
Database
Mail Server
……
Other Services
HTML forms<form name=form1 mehtod=post action=“myCOB.cgi”>
<input type= text name= t1 ><input type=text name=t2><input type=submit></form>
HTML form
Servlet program COBOL CGI program
HTML form
DatabaseDatabase / Mainframe
Web Server
HTML form
Database
Servlet program COBOL CGI program
Client
Ref : http://www.ils-international.com/goldmine/webcobol.htm