JSP and XML

adk46.xml

<?xml version = '1.0' encoding = 'UTF-8'?>

<HighPeaks>

<Peak id="A1" start="Heart Lake">

<Name>Marcy</Name>

<Height>5344</Height>

</Peak>

<Peak id="A2" start="Heart Lake" with="A8 A16">

<Name>Algonquin</Name>

<Height>5114</Height>

<Climbed>9/28/2002</Climbed>

<Climbed>9/7/2004</Climbed>

</Peak>

<Peak id="A3" start="Garden" with="A9 A17">

<Name>Haystack</Name>

<Height>4960</Height>

<Climbed>7/31/2003</Climbed>

</Peak>

<Peak id="A4" start="Heart Lake" with="A7">

<Name>Skylight</Name>

<Height>4926</Height>

<Climbed>8/25/2004</Climbed>

<HerdPath/>

</Peak>

<Peak id="A5" start="Observation Station" with="A28">

<Name>Whiteface</Name>

<Height>4867</Height>

<Climbed>10/5/2003</Climbed>

</Peak>

<Peak id="A6" start="Elm Lake" with="A21 A23 A37 A42">

<Name>Dix</Name>

<Height>4857</Height>

<Climbed>7/3/2004</Climbed>

<Climbed recent="yes">12/4/2005</Climbed>

<Climbed recent="yes">12/5/2005</Climbed>

</Peak>

<Peak id="A7" start="Heart Lake" with="A4">

<Name>Gray</Name>

<Height>4840</Height>

<Climbed>8/25/2004</Climbed>

<HerdPath/>

</Peak>

<Peak id="A8" start="Heart Lake" with="A2">

<Name>Iroquois</Name>

<Height>4840</Height>

<Climbed>9/28/2002</Climbed>

</Peak>

<Peak id="A9" start="Garden" with="A3 A17">

<Name>Basin</Name>

<Height>4827</Height>

<Climbed>7/31/2003</Climbed>

</Peak>

<Peak id="A10" start="Gatehouse" with="A22 A29 A35">

<Name>Gothics</Name>

<Height>4736</Height>

<Climbed>10/13/2003</Climbed>

</Peak>

<Peak id="A11" start="Heart Lake">

<Name>Colden</Name>

<Height>4714</Height>

<Climbed>6/13/2004</Climbed>

</Peak>

<Peak id="A12" start="Rt 73">

<Name>Giant Mt.</Name>

<Height>4627</Height>

<Climbed>9/19/2004</Climbed>

</Peak>

<Peak id="A13" start="Heart Lake" with="A41">

<Name>Nippletop</Name>

<Height>4620</Height>

<Climbed>6/15/2004</Climbed>

</Peak>

<Peak id="A14" start="Upper Works" with="A18 A46">

<Name>Santanoni</Name>

<Height>4607</Height>

</Peak>

<Peak id="A15" start="Upper Works">

<Name>Redfield</Name>

<Height>4606</Height>

<Climbed>8/17/2004</Climbed>

</Peak>

<Peak id="A16" start="Heart Lake">

<Name>Wright</Name>

<Height>4580</Height>

<Climbed>9/28/2002</Climbed>

<Climbed>9/7/2004</Climbed>

</Peak>

<Peak id="A17" start="Gatehouse" with="A3 A9">

<Name>Saddleback</Name>

<Height>4515</Height>

<Climbed>7/31/2003</Climbed>

</Peak>

<Peak id="A18" start="Upper Works" with="A14 A46">

<Name>Panther</Name>

<Height>4442</Height>

</Peak>

<Peak id="A19" start="Heart Lake">

<Name>Table Top</Name>

<Height>4427</Height>

<Climbed>7/14/2004</Climbed>

</Peak>

<Peak id="A20" start="Rt 73">

<Name>Rocky Peak Ridge</Name>

<Height>4420</Height>

<Climbed>5/3/2005</Climbed>

</Peak>

<Peak id="A21" start="Elm Lake" with="A6 A23 A37 A42">

<Name>Macomb</Name>

<Height>4405</Height>

<Climbed>7/3/2004</Climbed>

</Peak>

<Peak id="A22" start="Gatehouse" with="A10 A29 A35">

<Name>Armstrong</Name>

<Height>4400</Height>

<Climbed>10/13/2003</Climbed>

</Peak>

<Peak id="A23" start="Elm Lake" with="A6 A21 A37 A42">

<Name>Hough</Name>

<Height>4400</Height>

<Climbed>7/3/2004</Climbed>

</Peak>

<Peak id="A24" start="Coreys" with="A33 A40">

<Name>Seward</Name>

<Height>4361</Height>

<Climbed>9/2/2004</Climbed>

</Peak>

<Peak id="A25" start="Upper Works">

<Name>Marshall</Name>

<Height>4360</Height>

</Peak>

<Peak id="A26" start="Upper Works">

<Name>Allen</Name>

<Height>4340</Height>

<Climbed>8/4/2004</Climbed>

</Peak>

<Peak id="A27" start="Garden">

<Name>Big Slide</Name>

<Height>4240</Height>

<Climbed>9/7/2002</Climbed>

<Climbed>9/10/2003</Climbed>

</Peak>

<Peak id="A28" start="Observation Station" with="A5">

<Name>Esther</Name>

<Height>4240</Height>

<Climbed>10/5/2003</Climbed>

</Peak>

<Peak id="A29" start="Gatehouse" with="A10 A22 A35">

<Name>Upper Wolf Jaw</Name>

<Height>4185</Height>

<Climbed>10/13/2003</Climbed>

</Peak>

<Peak id="A30" start="Gatehouse">

<Name>Lower Wolf Jaw</Name>

<Height>4175</Height>

<Climbed>10/14/2002</Climbed>

</Peak>

<Peak id="A31" start="Heart Lake" with="A45">

<Name>Street</Name>

<Height>4166</Height>

<Climbed>6/1/2003</Climbed>

</Peak>

<Peak id="A32" start="Heart Lake">

<Name>Phelps</Name>

<Height>4161</Height>

<Climbed>8/6/2002</Climbed>

</Peak>

<Peak id="A33" start="Coreys" with="A24 A40">

<Name>Donaldson</Name>

<Height>4140</Height>

<Climbed>9/2/2004</Climbed>

</Peak>

<Peak id="A34" start="Coreys">

<Name>Seymour</Name>

<Height>4120</Height>

</Peak>

<Peak id="A35" start="Gatehouse" with="A10 A22 A29">

<Name>Sawteeth</Name>

<Height>4100</Height>

<Climbed>10/13/2003</Climbed>

</Peak>

<Peak id="A36" start="Rt 73" with="A38">

<Name>Cascade</Name>

<Height>4098</Height>

<Climbed>7/30/2002</Climbed>

<Climbed>9/3/2003</Climbed>

</Peak>

<Peak id="A37" start="Elm Lake" with="A6 A21 A23 A42">

<Name>South Dix</Name>

<Height>4060</Height>

<Climbed>7/3/2004</Climbed>

</Peak>

<Peak id="A38" start="Rt 73" with="A36">

<Name>Porter</Name>

<Height>4059</Height>

<Climbed>7/30/2002</Climbed>

<Climbed>9/3/2003</Climbed>

</Peak>

<Peak id="A39" start="Gatehouse" with="A43">

<Name>Colvin</Name>

<Height>4057</Height>

<Climbed>9/14/2003</Climbed>

</Peak>

<Peak id="A40" start="Coreys" with="A24 A33">

<Name>Emmons</Name>

<Height>4040</Height>

<Climbed>9/2/2004</Climbed>

</Peak>

<Peak id="A41" start="Gatehouse" with="A13">

<Name>Dial</Name>

<Height>4020</Height>

<Climbed>6/15/2003</Climbed>

</Peak>

<Peak id="A42" start="Elm Lake" with="A6 A21 A23 A37">

<Name>East Dix</Name>

<Height>4012</Height>

<Climbed>7/3/2004</Climbed>

</Peak>

<Peak id="A43" start="Gatehouse" with="A39">

<Name>Blake</Name>

<Height>3960</Height>

<Climbed>9/14/2003</Climbed>

</Peak>

<Peak id="A44" start="Upper Works">

<Name>Cliff</Name>

<Height>3960</Height>

</Peak>

<Peak id="A45" start="Heart Lake" with="A31">

<Name>Nye</Name>

<Height>3895</Height>

<Climbed>6/1/2003</Climbed>

</Peak>

<Peak id="A46" start="Upper Works" with="A14 A18">

<Name>Couchsachraga</Name>

<Height>3820</Height>

</Peak>

</HighPeaks>

adk46.dtd

<!ELEMENT HighPeaks (Peak+)>

<!ELEMENT Peak (Name, Height, Climbed*, HerdPath?)>

<!ELEMENT Name (#PCDATA)>

<!ELEMENT Height (#PCDATA)>

<!ELEMENT Climbed (#PCDATA)>

<!ELEMENT HerdPath EMPTY>

<!ATTLIST Peak

id ID #REQUIRED

start CDATA #IMPLIED

with IDREFS #IMPLIED

>

<!ATTLIST Climbed

recent CDATA #IMPLIED

>

ex1.jsp

<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c"%>

<%@ taglib uri="http://java.sun.com/jstl/xml" prefix="x"%>

<html>

<head>

<title>ex1</title>

</head>

<body>

<h1>Information about the High Peaks</h1>

<c:import var="xmlFile" url="ADK46.xml" />

<x:parse var="myDoc" xml="${xmlFile}" />

<table border="2">

<tr><th>Name</th><th>Height</th></tr>

<x:forEach select="$myDoc/HighPeaks/Peak"

var="mountain">

<tr>

<td><x:out select="$mountain/Name" /></td>

<td><x:out select="$mountain/Height" /></td>

</tr>

</x:forEach>

</body>

</html>

ex2.jsp

<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c"%>

<%@ taglib uri="http://java.sun.com/jstl/xml" prefix="x"%>

<html>

<head>

<title>ex1</title>

</head>

<body>

<h1>Information about the High Peaks</h1>

<c:import var="xmlFile" url="ADK46.xml" />

<x:parse var="myDoc" xml="${xmlFile}" />

<table border="2">

<tr><th>Name</th><th>Height</th>

<th>Climbed</th><th>Herd Path</th></tr>

<x:forEach select="$myDoc/HighPeaks/Peak"

var="mountain">

<tr>

<td><x:out select="$mountain/Name" /></td>

<td><x:out select="$mountain/Height" /></td>

<td>&nbsp;<ul>

<x:forEach select="$mountain/Climbed"

var="climbdate">

<li><x:out select="$climbdate" /></li>

</x:forEach>

</ul>

</td>

<td>

<x:choose>

<x:when select="$mountain/HerdPath">

Yes

</x:when>

<x:otherwise>

No

</x:otherwise>

</x:choose>

</td>

</tr>

</x:forEach>

</body>

</html>

ex3.jsp

<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c"%>

<%@ taglib uri="http://java.sun.com/jstl/xml" prefix="x"%>

<html>

<head>

<title>ex1</title>

</head>

<body>

<h1>Information about the High Peaks</h1>

<c:import var="xmlFile" url="ADK46.xml" />

<x:parse var="myDoc" xml="${xmlFile}" />

<table border="2">

<tr><th>Name</th><th>Height</th><th>Start</th>

<th>Climbed</th><th>Herd Path</th>

<th>Along With</th></tr>

<x:forEach select="$myDoc/HighPeaks/Peak"

var="mountain">

<tr>

<td><x:out select="$mountain/Name" /></td>

<td><x:out select="$mountain/Height" /></td>

<td><x:out select="$mountain/@start" /></td>

<td>&nbsp;<ul>

<x:forEach select="$mountain/Climbed"

var="climbdate">

<li><x:out select="$climbdate" /></li>

</x:forEach>

</ul>

</td>

<td>

<x:choose>

<x:when select="$mountain/HerdPath">

Yes

</x:when>

<x:otherwise>

No

</x:otherwise>

</x:choose>

</td>

<td>&nbsp;

<x:set select="$mountain/@with"

var="with" />

<c:set var="myWiths">

<x:out select="$with" />

</c:set>

<c:forTokens items="${myWiths}"

delims=" "

var="current">

<br><c:out value="${current}" />

</c:forTokens>

</td>

</tr>

</x:forEach>

</body>

</html>

ex4.jsp

<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c"%>

<%@ taglib uri="http://java.sun.com/jstl/xml" prefix="x"%>

<html>

<head>

<title>ex1</title>

</head>

<body>

<h1>Information about the High Peaks</h1>

<c:import var="xmlFile" url="ADK46.xml" />

<x:parse var="myDoc" xml="${xmlFile}" />

<table border="2">

<tr><th>Name</th><th>Height</th><th>Start</th>

<th>Climbed</th><th>Herd Path</th>

<th>Along With</th></tr>

<x:forEach select="$myDoc/HighPeaks/Peak" var="mountain">

<tr>

<td><x:out select="$mountain/Name" /></td>

<td><x:out select="$mountain/Height" /></td>

<td><x:out select="$mountain/@start" /></td>

<td>&nbsp;<ul>

<x:forEach select="$mountain/Climbed"

var="climbdate">

<li><x:out select="$climbdate" /></li>

</x:forEach>

</ul>

</td>

<td>

<x:choose>

<x:when select="$mountain/HerdPath">

Yes

</x:when>

<x:otherwise>

No

</x:otherwise>

</x:choose>

</td>

<td>&nbsp;

<x:set select="$mountain/@with"

var="with" />

<c:set var="myWiths">

<x:out select="$with" />

</c:set>

<ul>

<c:forTokens items="${myWiths}"

delims=" "

var="current">

<li>

<x:out select="$myDoc//Peak[@id=$current]/Name" />

</li>

</c:forTokens>

</ul>

</td>

</tr>

</x:forEach>

</body>

</html>

ex5.htm

<HTML>

<HEAD>

<TITLE>Information about a mountain</TITLE>

</HEAD>

<BODY>

<FORM

ACTION="ex5.jsp"

METHOD="POST">

Enter the mountain: <INPUT TYPE="text" NAME="mountain">

<BR><INPUT TYPE="submit" VALUE="Enter">

</FORM>

</HTML>

ex5.jsp

<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c"%>

<%@ taglib uri="http://java.sun.com/jstl/xml" prefix="x"%>

<html>

<head>

<title>ex5</title>

</head>

<body>

<h1>Information about

<c:out value="${param.mountain}" />

</h1>

<c:import var="xmlFile" url="ADK46.xml" />

<x:parse var="myDoc" xml="${xmlFile}" />

<x:choose>

<x:when select="$myDoc/HighPeaks/Peak[Name=$param:mountain]">

<x:set select="$myDoc/HighPeaks/Peak[Name=$param:mountain]"

var="mountain" />

<P>Height: <x:out select="$mountain/Height" />

<P>Start: <x:out select="$mountain/@start" />

<P>Dates climbed:

<x:forEach select="$mountain/Climbed" var="climbdate">

<br>&nbsp;&nbsp;<x:out select="$climbdate" />

</x:forEach>

<P>Herdpath:

<x:choose>

<x:when select="$mountain/HerdPath">

Yes

</x:when>

<x:otherwise>

No

</x:otherwise>

</x:choose>

<P>Along with:

<x:set select="$mountain/@with" var="with" />

<c:set var="myWiths">

<x:out select="$with" />

</c:set>

<c:forTokens items="${myWiths}" delims=" " var="current">

<br>&nbsp;&nbsp;

<x:out select="$myDoc//Peak[@id=$current]/Name" />

</c:forTokens>

</x:when>

<x:otherwise>

Not Found

</x:otherwise>

</x:choose>

</body>

</html>

ex6.jsp

<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c"%>

<%@ taglib uri="http://java.sun.com/jstl/xml" prefix="x"%>

<html>

<head>

<title>ex6</title>

</head>

<body>

<h1>Enter Information about a Climb</h1>

<c:import var="xmlFile" url="ADK46.xml" />

<x:parse var="myDoc" xml="${xmlFile}" />

<form action="ex7.jsp" method="POST">

Mountain:

<select name="mountain">

<x:forEach select="$myDoc/HighPeaks/Peak"

var="mountain">

<c:set var="this_mountain">

<x:out select="$mountain/Name" />

</c:set>

<option value="<c:out value="${this_mountain}" />">

<c:out value="${this_mountain}" />

</option>

</x:forEach>

</select>

<p>Date Climbed

<input type="text" name="date">

<p>

<input type="submit" value="Enter">

</form>

</body>

</html>

ex7.jsp

<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c"%>

<%@ taglib uri="http://java.sun.com/jstl/xml" prefix="x"%>

<html>

<head>

<title>ex7</title>

</head>

<body>

<jsp:useBean id="xmlBean" class="package12.Bean7">

<jsp:setProperty name="xmlBean" property="*"/>

</jsp:useBean>

<jsp:setProperty name="xmlBean" property="save" value=""/>

<h1>Information recorded!</h1>

</body>

</html>

Bean7.java

package package12;

import java.io.*;

import javax.swing.JFileChooser;

import javax.xml.parsers.*;

import javax.xml.transform.*;

import javax.xml.transform.dom.*;

import javax.xml.transform.stream.*;

import org.w3c.dom.*;

import org.xml.sax.*;

public class Bean7

{

Document document;

String mountain = "";

String date = "";

File xmlFile;

public Bean7()

{

xmlFile = new File("C:\\temp\\ADK46.xml");

try

{

DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();

DocumentBuilder builder = factory.newDocumentBuilder();

builder.setErrorHandler(new MyErrorHandler());

document = builder.parse( xmlFile );

}

catch (Exception e)

{

}

}

public void setMountain(String mountain)

{

this.mountain = mountain;

}

public void setDate(String date)

{

this.date = date;

}

public void setSave(String temp)

{

try

{

Node root = document.getDocumentElement();

Element elementRoot = (Element) root;

NodeList peaks = elementRoot.getElementsByTagName("Peak");

for (int i = 0; i < peaks.getLength(); i++)

{

Element peak = (Element) peaks.item(i);

NodeList names = peak.getElementsByTagName("Name");

if (names.item(0).getFirstChild().getNodeValue().equals(mountain))

{

Element climbedNode = document.createElement("Climbed");

Attr recentAttribute = document.createAttribute("recent");

recentAttribute.setValue("yes");

climbedNode.setAttributeNode(recentAttribute);

climbedNode.appendChild( document.createTextNode(date));

peak.appendChild(climbedNode);

}

}

Source xmlSource = new DOMSource(document);

Result storedResult = new StreamResult(xmlFile);

Result storedResult1 = new StreamResult(System.out);

TransformerFactory transformerFactory =

TransformerFactory.newInstance();

Transformer transformer = transformerFactory.newTransformer();

transformer.setOutputProperty("indent", "yes");

transformer.transform(xmlSource, storedResult1);

transformer.transform(xmlSource, storedResult);

} // try

catch (Exception e)

{

e.printStackTrace();

}

}

private class MyErrorHandler implements ErrorHandler

{

// throw SAXException for fatal errors

public void fatalError(SAXParseException exception) throws SAXException

{

throw exception;

}

public void error(SAXParseException exception) throws SAXParseException

{

throw exception;

}

// print warnings

public void warning(SAXParseException exception) throws SAXParseException

{

System.err.println("Warning: " + exception.getMessage());

}

}

}