Intercepting errors...

[HoMyGod]

Hi,

I wonder how it is possible to intercept errors like:

Exception: java.lang.NullPointerException
java.lang.NullPointerException

I mean, I am using JSP and sometimes, if a user modify manually the URL (for exemple he will modify id=5 into id=tutu) I would like to print an error page...

How can I do that?

 

[LeonTang]

Hi,

All you need is a try and catch statement. So your jsp would be something like this

try
{
//this will contain all your jsp codes
...
}
catch (NullPointerException e)
{
//code your error page and display it here.
}

Hope this helps,
Leon If you need additional help, you can email to me at zaoliang@hotmail.com I don't guaranty that I will be able to solve your problems but I will try my best