Exercise 6: Paging
/*
First edition copyright 2004 ObjectSource LLC. All rights reserved.
This training material and the accompanying lab exercises were prepared
by Srikanth Shenoy for ObjectSource LLC.
GRANT OF LICENSE: ObjecSource LLC grants you a non-exclusive license to
use the material. No part of this publication may be reproduced, stored
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*/
/*
Business Objectives:
The following business objectives will be met at the end of this exercise:
1. Implement Paging
Technical Objectives for this exercise:
The technical objectives of this exercise is to learn how to implement Paging using Pager taglib
a. Start by adding pager taglib to web.xml and CustomerSearchList.jsp
<taglib>
<taglib-uri>/WEB-INF/pager-taglib.tld</taglib-uri>
<taglib-location>/WEB-INF/pager-taglib.tld</taglib-location>
</taglib>
<%@ taglib uri="/WEB-INF/pager-taglib.tld" prefix="pg" %>
b. Use <pg:pager> body tag to cover the entire list display
<pg:pager url="customerlist.do" maxIndexPages="10" maxPageItems="5">
c. Use <pg:item> for each item iterated over
<pg:item>
</pg:item>
<c:forEach var='customer' items='${CUSTOMER_SUMMARY_OBJECTS}'>
</c:forEach>
d. Add a new table containing <pg:index> block with the tags: <pg:prev>, <pg:pages>, <pg:next>
<a href="<%= pageUrl %>"><%= pageNumber %></a>
</pg:pages>
<TABLE width="80%" border="0">
<TR><TD> </TD></TR>
<TR align="center">
<TD>
<pg:index>
<pg:prev><a href="<%= pageUrl%>">[<<Prev]</a></pg:prev>
<pg:pages>
<pg:next><a href="<%= pageUrl%>">[Next>>]</a></pg:next>
</pg:index>
*/
// when I try to deploy the exercise06.jar, some exceptions are printed
/*
SEVERE: Exception sending context initialized event to listener instance of clas
s struts.example.util.ApplicationScopeInit
java.lang.NullPointerException
at java.util.Properties$LineReader.readLine(Properties.java:365)
at java.util.Properties.load(Properties.java:293)
at struts.example.util.ApplicationScopeInit.contextInitialized(Unknown S
ource)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContex
t.java:3637)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4
073)
*/
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