JSP jstl-<x:param> 标记

jstl-<x:param> 标记

<x:param> 标记用于沿与变换标签在XSLT样式表来设置的参数

属性

属性	描述	必需	默认值
name	要设置的XSLT参数的名称	Yes	Body
Value	要设置的XSLT参数的值	No	None

示例

考虑以下XSLT样式表style.xsl。注意<xsl：param ...> 标签和变量{$ bgColor}的用法-


<?xml version = "1.0"?>
<xsl:stylesheet xmlns:xsl = "http://www.w3.org/1999/XSL/Transform" version = "1.0">

<xsl:output method = "html" indent = "yes"/>
<xsl:param name = "bgColor"/>

   <xsl:template match = "/">
      <html>
         <body>
            <xsl:apply-templates/>
         </body>
      </html>
   </xsl:template>

   <xsl:template match = "books">
      <table border = "1" width = "50%" bgColor = "{$bgColor}">
         <xsl:for-each select = "book">
            <tr>
               <td><i><xsl:value-of select = "name"/></i></td>
               <td><xsl:value-of select = "author"/></td>
               <td><xsl:value-of select = "price"/></td>
            </tr>
         </xsl:for-each>
      </table>
   </xsl:template>
   
</xsl:stylesheet>

考虑以下JSP文件，我们在其中使用<x：transform>标记内的<x：param>标记定义bgColor的值-


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

<html>
   <head>
      <title>JSTL x:transform Tags</title>
   </head>

   <body>
      <h3>Books Info:</h3>
      <c:set var = "xmltext">
         <books>
            <book>
               <name>Padam History</name>
               <author>MOO</author>
               <price>100</price>
            </book>
            
            <book>
               <name>Great Mistry</name>
               <author>NUHA</author>
               <price>2000</price>
            </book>
         </books>
      </c:set>

      <c:import url = "http://localhost:8080/style.xsl" var = "xslt"/>
      <x:transform xml = "${xmltext}" xslt = "${xslt}">
         <x:param name = "bgColor" value = "grey"/>
      </x:transform>

   </body>
</html>

上面的代码将产生以下结果-


Books Info:

Padam History  MOO  100
Great Mistry   NUHA  2000