How to catch java.lang.NumberFormatException.forInputString Exception in Controller?

Question

I have a checkbox in my JSP page that accepts integer values:

 Dangerous Checkbox 



        

Answer 1

you can use JSTL's c:catch tag:

<c:catch var ="numberFormatException">
<form:checkbox path="somePath" value="blah" /> Dangerous Checkbox <br />
</c:catch>

<c:if test = "${numberFormatException!= null}">
   <p>The exception is : ${numberFormatException} <br />
   There is an exception: ${numberFormatException.message}</p>
</c:if>