Exception redirect to page

[Dan Parsons]

Sometimes I have Servlets in my Tomcat 4.1.27 container that display information and there might be times when an Exception happens. I like to have a redirect to show a user friendly error page. The below is how I have been doing it and was wondering if this is the proper way to do it where the error message goes to the Tomcat log file and the page redirects.

try {
         //stuff such as DB connection or something else      
}
catch(Exception ex) { 
         System.out.println(e);
         response.sendRedirect("PageErrorMessage.jsp"); 
         //also sometimes use RequestDispatcher redirect
}
//rest of html web info here

[Bear Bibeault]

It is not the proper way. Rather you should not catch the exception at all. Declare your error page(es) in the web.xml. The Servlet Specificatin spells all of this out in the error handling section.

[Chandra Bhatt]

In the web.xml

...
<error-page>
<exception-type>java.sql.SQLException</exception-type>
<location>/someErrorfullPage.jsp</location>
</error-page>
...

someErrorfullPage.jsp

<%@ page isErrorPage ="true" %>
 
...
code that may cause the exception
...

Thanks,

[Majid Al-Fifi]

cmbhatt,

In the error page you will not have "code that may cause the exception" rather you may have code that generate useful message to the user about what the problem was.

regards,

Majid

[Kumar N Krishna]

Hi

U said <error-page> in web.xml
my Quest. is where we write <error-page> tag i.e.in servlet tag or
servlet-mapping tag.


Thanks in Advance

[Vyas]

Does this mean if it generates an error/exception in the action/service class it will log the error and redirect to the error.jsp?

[David O'Meara]

"Vyas",
after multiple requests to correct your display name, I am now disabling your account.

If you would like to participate in this conversation, please do so with an account with a valid display name.

Dave

[Rajesh Agarwal]

Kishore there is no error tag in servlet or servlet-mapping tag. There is a separate tag called

<error-page> and the attributes of these are

<error-code>
<exception-type>
<location>