June 2012
Intermediate to advanced
386 pages
10h 7m
English
Content preview from Web Technology: Theory and Practice
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6.11 JSP EXCEPTIONS
Exceptions in JSP can be handled by a special page. There is an object called Exception which is set by the container (only on the JSP Exception page). The JSP Exception page is marked by a directive as shown below.
<%@page isErrorPage=“true” %>
An example will make it clear. Consider a Form which accepts a PIN value as the password. The HTML is shown in Figure 6.6.
Fig. 6.6 A sample index.jsp with exception through JSP
Index.jsp captures the form data and hands it over to validateAndShow.jsp. The code shown in Figure 6.7 is written in a way to experiment with invalid data. In this case a non-numeric data on the PIN ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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