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Java Tutorial/JSTL/XML Path - История изменений
2026-04-22T09:25:48Z
История изменений этой страницы в вики
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http://www.jexp.ru/index.php?title=Java_Tutorial/JSTL/XML_Path&diff=3383&oldid=prev
в 17:44, 31 мая 2010
2010-05-31T17:44:26Z
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http://www.jexp.ru/index.php?title=Java_Tutorial/JSTL/XML_Path&diff=3384&oldid=prev
Admin: 1 версия
2010-05-31T15:23:22Z
<p>1 версия</p>
<p><b>Новая страница</b></p><div>== Output XML with Select Statement ==<br />
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<!-- start source code --><br />
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<source lang="java"><br />
<%@ taglib uri="http://java.sun.ru/jstl/core" prefix="c" %><br />
<%@ taglib uri="http://java.sun.ru/jstl/xml" prefix="x" %><br />
<html><br />
<head><br />
<title>xml actions</title><br />
</head><br />
<body><br />
This example embeds stuff...<br />
<p/><br />
<c:set var="someXML"><br />
<person><br />
<name>Ruth</name><br />
<age>29</age><br />
</person><br />
</c:set><br />
<x:parse var="parsedDocument" xml="${someXML}" /><br />
<x:out select="$parsedDocument/*" /> <br />
</body><br />
</html></source><br />
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<!-- end source code --><br />
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== Parse XML and Path Select ==<br />
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<!-- start source code --><br />
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<source lang="java"><br />
<%@ taglib uri="http://java.sun.ru/jstl/core" prefix="c" %><br />
<%@ taglib uri="http://java.sun.ru/jstl/xml" prefix="x" %><br />
<html><br />
<head><br />
<title>Parse Examples</title><br />
</head><br />
<body>Please enter an XML file:<br />
<br /><br />
<form method="post"><br />
<textarea rows="10" cols="50" name="xml"><br />
<students><br />
<student id="1"><br />
<name><br />
<first>A</first><br />
<last>B</last><br />
<middle>T</middle><br />
</name><br />
<grade><br />
<points>88</points><br />
<letter>B</letter><br />
</grade><br />
</student><br />
<student id="2"><br />
<name><br />
<first>C</first><br />
<last>D</last><br />
<middle>K</middle><br />
</name><br />
<grade><br />
<points>92</points><br />
<letter>A</letter><br />
</grade><br />
</student><br />
</students><br />
</textarea><br />
<br /><br />
<input type="submit" /><br />
</form><br />
<c:if test="${pageContext.request.method=="POST"}"><br />
<x:parse var="doc" xml="${param.xml}" /><br />
<table border="1"><br />
<tr><br />
<td>$doc/students/student/name/first</td><br />
<td><br />
<x:out select="$doc/students/student/name/first" /><br />
</td><br />
</tr><br />
<tr><br />
<td>$doc/students/student[@id=2]/name/first</td><br />
<td><br />
<x:out<br />
select="$doc/students/student[@id=2]/name/first" /><br />
</td><br />
</tr><br />
<tr><br />
<td>$doc/students/student[@id=1]/name/first</td><br />
<td><br />
<x:out<br />
select="$doc/students/student[@id=12]/name/first" /><br />
</td><br />
</tr><br />
</table><br />
</c:if><br />
</body><br />
</html></source><br />
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<!-- end source code --><br />
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== Parse XML With XPath Expression ==<br />
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<!-- start source code --><br />
<br />
<source lang="java"><br />
<%@ taglib uri="http://java.sun.ru/jstl/core" prefix="c" %><br />
<%@ taglib uri="http://java.sun.ru/jstl/xml" prefix="x" %><br />
<html><br />
<head><br />
<title>xml actions</title><br />
</head><br />
<body><br />
This example parses XML and uses an XPath expression...<br />
<p/><br />
<c:set var="someXML"><br />
<people><br />
<person><br />
<name>Mark</name><br />
<age>30</age><br />
</person><br />
<person><br />
<name>Ruth</name><br />
<age>29</age><br />
</person><br />
</people><br />
</c:set><br />
<x:parse var="parsedDocument" xml="${someXML}" /><br />
Here is a list of people:<br />
<ul><br />
<x:forEach select="$parsedDocument/people/person"><br />
<li> <x:out select="name" /> </li><br />
</x:forEach><br />
</ul><br />
</body><br />
</html></source><br />
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<!-- end source code --><br />
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== Set Variable by Selecting XML Path ==<br />
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<!-- start source code --><br />
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<source lang="java"><br />
<%@ taglib uri="http://java.sun.ru/jstl/core" prefix="c" %><br />
<%@ taglib uri="http://java.sun.ru/jstl/xml" prefix="x" %><br />
<html><br />
<head><br />
<title>Set Examples</title><br />
</head><br />
<body><br />
<c:import var="students" url="students.xml" /><br />
<x:parse var="doc" xml="${students}" /><br />
<x:set var="a" select="$doc/students/student/name/first" /><br />
<x:set var="b"<br />
select="$doc/students/student[@id=2]/name/first" /><br />
<x:set var="c"<br />
select="$doc/students/student[@id=1]/name/first" /><br />
<table border="1"><br />
<tr><br />
<td>$doc/students/student/name/first</td><br />
<td><br />
<x:out select="$a" /><br />
</td><br />
</tr><br />
<tr><br />
<td>$doc/students/student[@id=2]/name/first</td><br />
<td><br />
<x:out select="$b" /><br />
</td><br />
</tr><br />
<tr><br />
<td>$doc/students/student[@id=1]/name/first</td><br />
<td><br />
<x:out select="$c" /><br />
</td><br />
</tr><br />
</table><br />
</body><br />
</html></source><br />
<br />
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<!-- end source code --><br />
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== Use ForEach Loop to Select XML Path ==<br />
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<!-- start source code --><br />
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<source lang="java"><br />
<%@ taglib uri="http://java.sun.ru/jstl/core" prefix="c" %><%@ taglib uri="http://java.sun.ru/jstl/xml" prefix="x" %><br />
<html><br />
<head><br />
<title>For Each Examples</title><br />
</head><br />
<body><br />
<c:import var="students" url="students.xml" /><br />
<x:parse var="doc" xml="${students}" /><br />
<table border="1"><br />
<tr><br />
<TH>First</th><br />
<TH>Last</th><br />
<TH>Points</th><br />
<TH>Letter</th><br />
</tr><br />
<x:forEach var="student" select="$doc/students/student"><br />
<tr><br />
<td><br />
<x:out select="name/first" /><br />
</td><br />
<td><br />
<x:out select="name/last" /><br />
</td><br />
<td><br />
<x:out select="grade/points" /><br />
</td><br />
<td><br />
<x:out select="grade/letter" /><br />
</td><br />
</tr><br />
</x:forEach><br />
</table><br />
</body><br />
</html></source><br />
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<!-- end source code --><br />
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== Use JSTL to output and extract XML element with XPATH ==<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="java"><br />
<%@ taglib uri="http://java.sun.ru/jstl/core" prefix="c" %><br />
<%@ taglib uri="http://java.sun.ru/jstl/xml" prefix="x" %><br />
<html><br />
<head><br />
<title>xml actions</title><br />
</head><br />
<body><br />
This example uses XPath and the x:out action to extract the<br />
user"s name from a piece of XML.<br />
<p/><br />
<c:set var="someXML"><br />
<person><br />
<name>Ruth</name><br />
<age>29</age><br />
</person><br />
</c:set><br />
<x:parse var="parsedDocument" xml="${someXML}" /><br />
The person"s name is <x:out select="$parsedDocument//name" /> <br />
</body><br />
</html></source><br />
<br />
<br />
<!-- end source code --></div>
Admin