Hi,
In my web application i m trying to handle the run time exception with the help of <exception-type> and <location> tag in web.xml file as show below.
But whille running the application the exeception raised when n>5 is not handled and i am getting internal server error with root cause as " coreservlets.DumbDeveloperException: Value of n is greater than 5 ".
I have kept all the files in the proper path and directory and i am using Tomcat 7.0.27.
Kindly help me how to sort it out.
web.xml
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
<error-page>
<exception-type>coreservlets.DumbDeveloperException</exception-type>
<location>/WEB-INF/jspPages/DDE.jsp</location>
</error-page>
</web-app>
the other files of my web applications are given below.
DumbDeveloperException.java
package coreservlets;
public class DumbDeveloperException extends Exception {
public DumbDeveloperException() {
super("Value of n is greater than 5");
}
public static int dangerousComputation(int n)
throws DumbDeveloperException {
if (n < 5) {
return(n + 10);
} else {
throw(new DumbDeveloperException());
}
}
}
RiskyPage.jsp
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD><TITLE>Risky JSP Page</TITLE></HEAD>
<BODY BGCOLOR="#FDF5E6">
<h2>Risky Calculations </h2>
<%@ page import="coreservlets.*" %>
<% int n = ((int) (10 * Math.random()));%>
<UL>
<LI>n: <%= n%>
<LI>dangerousComputation(n): <%= DumbDeveloperException.dangerousComputation(n)%>
</UL>
</BODY>
</HTML>
DDE.jsp
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD><TITLE>Dumb</TITLE></HEAD>
<BODY BGCOLOR="#FDF5E6">
<H2>Dumb Developer</H2>
We're brain dead. Consider using our competitors.
</BODY>
</HTML>