Javascript in JSP always makes things hard to read and difficult to maintain.
One solution to this is to create Custom Tags.
A Custom Tag allows you to put javascript (or anything else - let us not worry about that for now) inside a Java classe, to create 'tag libraries'.
By referring to these tags, it is possible to simplify the JSP.
For example, we could create a custom tag to encapsulate the javascript we put in for the datepicker, and our JSP would then reduce to this:
<html>
<head>
<link type="text/css" rel="Stylesheet" href="../css/jquery-ui-1.8.17.custom.css"/>
<script src="../js/jquery-1.7.1.min.js"></script>
<script src="../js/jquery-ui-1.8.16.custom.min.js"></script>
<script src="../js/jquery.ui.core.js"></script>
<script src="../js/jquery.ui.datepicker.js"></script>
<%@ taglib uri="/WEB-INF/tlds/ConfuciusTags.tld" prefix="confucius" %>
</head>
<body>
<confucius:datetag id="birthdate" label="Enter your birthday"/>
</body>
</html>
Compare this <body> with the JSP in the previous blog.
This one is Cleaner, Readable and Reusable.
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