我在我的JSP页面复选框接受整数值:
<form:checkbox path="somePath" value="2" /> Dangerous Checkbox <br />
如果用户改变输入到的值String
值,例如:
<form:checkbox path="somePath" value="blah" /> Dangerous Checkbox <br />
该页面将抛出一个NumberFormatException
。 我如何能赶上这在我的控制和显示有意义的信息?
您可以使用JSTL的C:抓标签:
<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>
文章来源: How to catch java.lang.NumberFormatException.forInputString Exception in Controller?