JSPs as Views
JSPs are just HTML, so non-programmers can
work with the presentation elements.
But even simple logic is tedious
(this page has more than necessary).
This JSP as View:
- Handles requests forwarded to it.
- Uses beans for pluggable styles.
- Uses data in the request attributes.
- Presents the data in HTML form.
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<%@ page import="com.grdurand.LogEntry" %>
<%@ page import="java.util.*" %>
<jsp:useBean id="style" class="com.grdurand.StyleBean" />
<html>
<head>
<title><jsp:getProperty name="style" property = "blogTitle" /></title>
<style type="text/css">
div.title {<jsp:getProperty name="style" property = "title" />}
div.entry {<jsp:getProperty name="style" property = "entry" />}
div.stamp {<jsp:getProperty name="style" property = "stamp" />}
</style>
</head>
<body>
<center><h1><jsp:getProperty name="style" property = "blogTitle" /></h1>
<%
String servletName = (String) request.getAttribute("servletName");
%>
<a href="<%= servletName %>?blogpost=true">Post a New Entry</a><p>
<%
LogEntry[] entries = (LogEntry[]) request.getAttribute("entries");
for (int i = 0; i < entries.length; i++) {
LogEntry entry = entries[i];
%>
<div class=title><%= entry.title %></div>
<div class=entry><%= entry.entry %></div>
<div class=stamp>
Posted on <%= new Date(entry.date) %> by <%= entry.author %>
<br><a href="<%= servletName %>?permalink=<%= entry.id %>">
PermaLink</a>
</div>
<p>
<%
}
%>
</body>
</html>
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