Hi Rajneesh --
Everything you needed to find the problem was in the stack trace you
copied below. Read it from top to bottom until you find where one of your
classes is mentioned:
at java.lang.Integer.parseInt(Compiled Code)
at executeInsert.doPost(Compiled Code)
Open up your executeInsert class, look at the doPost method, and see where
you are calling parseInt(). You're failing there, passing it something that
is either not a number or is null.
One way to diagnose this is to pass the offending value to
System.err.println() and look at the result in the error log. But basically,
the first and most important thing you should learn is to read the stack
traces. :)
Regards,
...Richard
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