JSP Parsing using the DOM
/*
<people>
<person>
<name>Joe</name>
<age>30</age>
</person>
<person>
<name>Rob</name>
<age>29</age>
</person>
</people>
*/
<%@page import="org.w3c.dom.Node, org.w3c.dom.Element, org.w3c.dom.Document, org.w3c.dom.NodeList, javax.xml.parsers.DocumentBuilder, javax.xml.parsers.DocumentBuilderFactory" %>
<%!
public boolean isTextNode(Node n)
{
return n.getNodeName().equals("#text");
}
%>
<html>
<head><title>Parsing using the DOM</title></head>
<body>
<%
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document doc = builder.parse("http://localhost:8080/chapter02/people.xml");
%>
<h1>List of people</h1>
<table border="1">
<tr><th>Name</th><th>Age</th></tr>
<%
Element root = doc.getDocumentElement(); // "people" node
NodeList personNodes = root.getChildNodes(); // 2 "person" nodes
for (int i=0; i<personNodes.getLength(); i++)
{
Node currentPerson = personNodes.item(i);
if (isTextNode(currentPerson)) // skip whitespace node
continue;
NodeList nameAndAge = currentPerson.getChildNodes(); // "name" and "age" nodes
%>
<tr>
<%
for (int j=0; j<nameAndAge.getLength(); j++ )
{
Node currentItem = nameAndAge.item(j);
if ( isTextNode(currentItem))
continue;
%>
<td><%= currentItem.getFirstChild().getNodeValue() %></td>
<%
} // end of name & age loop
%>
</tr>
<%
} // end person loop
%>
</table>
</body>
</html>
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