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Web Direct 2.0 option : How to receive parameters in EIS WD2
How to receive parameters in EIS WD2
Programs can receive parameters from the URL.
Parameters must be added at the end of the URL using the syntax “&PARAMN=Value” (where N is a progressive number) and they're intercepted by the COBOL program as chaining parameters.
The following COBOL program, for example, expects 2 parameters, p1 and p2:
       PROGRAM-ID. prog.
       WORKING-STORAGE SECTION.
       77 p1 pic x(10).
       77 p2 pic x(10).
       PROCEDURE DIVISION chaining p1 p2.
       main.
           display message "p1=" p1.
           display message "p2=" p2.
           Goback.
The parameters will be passed through HTTP using GET or POST methods.
Example of GET
The following URL passes two parameters named PARAM1 and PARAM2:
http://127.0.0.1:8080/wd2/zk/IsMainZK?PROGRAM=PROG&PARAM1=AAA&PARAM2=BBB
Example of POST
The following HTML form passes two parameters named PARAM1 and PARAM2:
<html>
   <form method="POST" action="zk/IsMainZK?PROGRAM=PROG">
    <input type="text" placeholder="Param1" name="PARAM1"/>
    <input type="text" placeholder="Param1" name="PARAM2"/>
    <input type="submit" value="Chiama COBOL"/>
   </form>
</html>
Note - the name of the parameter in the URL can be different than the name used by the COBOL program. Parameters are passed according to their ordinal position.
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