Parse XML and Path Select : XML Path « JSTL « Java Tutorial






  1. Java Tutorial
  2. JSTL
  3. XML Path
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c" %>
<%@ taglib uri="http://java.sun.com/jstl/xml" prefix="x" %>
<html>
  <head>
    <title>Parse Examples</title>
  </head>

  <body>Please enter an XML file:
  <br />

  <form method="post">
    <textarea rows="10" cols="50" name="xml">
      <students>
        <student id="1">
          <name>
            <first>A</first>

            <last>B</last>

            <middle>T</middle>
          </name>

          <grade>
            <points>88</points>

            <letter>B</letter>
          </grade>
        </student>

        <student id="2">
          <name>
            <first>C</first>

            <last>D</last>

            <middle>K</middle>
          </name>

          <grade>
            <points>92</points>
            <letter>A</letter>
          </grade>
        </student>
      </students>
    </textarea>

    <br />

    <input type="submit" />
  </form>

  <c:if test="${pageContext.request.method=='POST'}">

    <x:parse var="doc" xml="${param.xml}"  />

    <table border="1">
      <tr>
        <td>$doc/students/student/name/first</td>

        <td>
          <x:out select="$doc/students/student/name/first" />
        </td>
      </tr>

      <tr>
        <td>$doc/students/student[@id=2]/name/first</td>

        <td>
          <x:out
          select="$doc/students/student[@id=2]/name/first" />
        </td>
      </tr>

      <tr>
        <td>$doc/students/student[@id=1]/name/first</td>

        <td>
          <x:out
          select="$doc/students/student[@id=12]/name/first" />
        </td>
      </tr>
    </table>
  </c:if>
  </body>
</html>

<?xml version="1.0" encoding="ISO-8859-1"?>
<students>
   <student id="1">
      <name>
         <first>A</first>
         <last>B</last>
         <middle>T</middle>
      </name>
      <grade>
         <points>88</points>
         <letter>B</letter>
      </grade>
   </student>
   <student id="2">
      <name>
         <first>C</first>
         <last>D</last>
         <middle>K</middle>
      </name>
      <grade>
         <points>92</points>
         <letter>A</letter>
      </grade>
   </student>
   <student id="3">
      <name>
         <first>E</first>
         <last>F</last>
         <middle>A</middle>
      </name>
      <grade>
         <points>72</points>
         <letter>C</letter>
      </grade>
   </student>
   
</students>
  Download:  JSTLParseXMLAndPathSelect.zip( 1,621 k)




24.33.XML Path
24.33.1.Output XML with Select Statement
24.33.2.Use ForEach Loop to Select XML Path
24.33.3.Set Variable by Selecting XML Path
24.33.4.Parse XML With XPath Expression
24.33.5.Parse XML and Path Select
24.33.6.Use JSTL to output and extract XML element with XPATH