Question

如何使用元素对我输出的表格中的元素进行排序？我想使用元素中的元素。我尝试将元素放在我的xsl文档中，但它没有对元素进行排序。

这是我的xml：

<presidents xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="president.xsd" date="2014-09-24" >
    <president>
        <number>1</number>
        <name>George Washington</name>
         <birthday>1732-02-22</birthday>
        <took_office>1789-04-30</took_office>
        <left_office>1797-03-04</left_office>
        <party>no party</party>
        <term>
            <term_number>1</term_number>
            <vice_president>John Adams</vice_president> 
        </term>
        <term>
            <term_number>2</term_number>
            <vice_president>John Adams</vice_president>
        </term>
    </president>

    <president>
        <number>2</number>
        <name>John Adams</name>
         <birthday>1735-10-30</birthday>
        <took_office>1797-03-04</took_office>
        <left_office>1801-03-04</left_office>
        <party>Federalist</party>
        <term>
            <term_number>3</term_number>
            <vice_president>Thomas Jefferson</vice_president>
        </term>
    </president>
</presidents>

这是我的.xsl：

<xsl:template match="/">
    <html>
    <head>
    <link rel="stylesheet" type="text/css" href="president_table.css"/>
    <title>Table of Us Presidents</title>
    </head>
    <body>
        <h1>Table of Us Presidents</h1>
        <table>
            <tr>
                <th>Name</th>
                <th>Birthday</th>
                <th>Took Office</th>
                <th>Left Office</th>
                <th>Party</th>
                <th>Vice President</th>
            </tr>
            <xsl:apply-templates/>
        </table>
    </body>
    </html>
</xsl:template>

<xsl:template match="president">
<tr>
    <td><xsl:apply-templates select="name"/></td>
    <td><xsl:apply-templates select="birthday"/></td>
    <td><xsl:apply-templates select="took_office"/></td>
    <td><xsl:apply-templates select="left_office"/></td>
    <td>
    <xsl:apply-templates select="party">
        <xsl:sort select="party"/>
    </xsl:apply-templates>
    </td>
    <td>
    <xsl:for-each select="term">
        <xsl:number value="position()" format="1. " />
        <xsl:value-of select="vice_president" /><br />
    </xsl:for-each>
    </td>
</tr>
</xsl:template>

Answer 1

我想输出数据，以便按字母顺序按元素排序。因此，所有“民主党”总统都将首先出现。

然后，让我们测试一个例子，其中元素的自然顺序不表明民主党总统在输出中排在第一位：

XML输入

<presidents date="2014-09-24" >
    <president>
        <number>1</number>
        <name>George Washington</name>
         <birthday>1732-02-22</birthday>
        <took_office>1789-04-30</took_office>
        <left_office>1797-03-04</left_office>
        <party>Federalist</party>
        <term>
            <term_number>1</term_number>
            <vice_president>John Adams</vice_president> 
        </term>
        <term>
            <term_number>2</term_number>
            <vice_president>John Adams</vice_president>
        </term>
    </president>

    <president>
        <number>2</number>
        <name>John Adams</name>
         <birthday>1735-10-30</birthday>
        <took_office>1797-03-04</took_office>
        <left_office>1801-03-04</left_office>
        <party>Democratic</party>
        <term>
            <term_number>3</term_number>
            <vice_president>Thomas Jefferson</vice_president>
        </term>
    </president>
</presidents>

然后，对您的数据进行排序。目前，您正在匹配xsl:sort的模板的上下文中应用president，如下所示：

<xsl:apply-templates select="party">
  <xsl:sort select="party"/>
</xsl:apply-templates>

但您要排序的单位不是party，而是president元素。只是排序条件是party元素的文本内容，它是president的子元素。

因此，您必须在XML层次结构中应用更高的排序以获得所需的效果。您必须在presidents的上下文中进行排序，其中模板应用于president元素。

<强>样式表

<?xml version="1.0" encoding="UTF-8" ?>
<xsl:transform xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
    <xsl:output method="html" doctype-public="XSLT-compat" indent="yes" /> 

    <xsl:template match="/presidents">
    <html>
    <head>
    <link rel="stylesheet" type="text/css" href="president_table.css"/>
    <title>Table of Us Presidents</title>
    </head>
    <body>
        <h1>Table of Us Presidents</h1>
        <table>
            <tr>
                <th>Name</th>
                <th>Birthday</th>
                <th>Took Office</th>
                <th>Left Office</th>
                <th>Party</th>
                <th>Vice President</th>
            </tr>
            <xsl:apply-templates select="president">
                <xsl:sort select="party"/>
            </xsl:apply-templates>
        </table>
    </body>
    </html>
</xsl:template>

<xsl:template match="president">
<tr>
    <td><xsl:apply-templates select="name"/></td>
    <td><xsl:apply-templates select="birthday"/></td>
    <td><xsl:apply-templates select="took_office"/></td>
    <td><xsl:apply-templates select="left_office"/></td>
    <td>
    <xsl:apply-templates select="party"/>
    </td>
    <td>
    <xsl:for-each select="term">
        <xsl:number value="position()" format="1. " />
        <xsl:value-of select="vice_president" /><br />
    </xsl:for-each>
    </td>
</tr>
</xsl:template>

</xsl:transform>

HTML输出

正如你所看到的，民主党的总统现在是第一位的。

<!DOCTYPE html
  PUBLIC "XSLT-compat">
<html>
   <head>
      <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
      <link rel="stylesheet" type="text/css" href="president_table.css">
      <title>Table of Us Presidents</title>
   </head>
   <body>
      <h1>Table of Us Presidents</h1>
      <table>
         <tr>
            <th>Name</th>
            <th>Birthday</th>
            <th>Took Office</th>
            <th>Left Office</th>
            <th>Party</th>
            <th>Vice President</th>
         </tr>
         <tr>
            <td>John Adams</td>
            <td>1735-10-30</td>
            <td>1797-03-04</td>
            <td>1801-03-04</td>
            <td>Democratic</td>
            <td>1. Thomas Jefferson<br></td>
         </tr>
         <tr>
            <td>George Washington</td>
            <td>1732-02-22</td>
            <td>1789-04-30</td>
            <td>1797-03-04</td>
            <td>Federalist</td>
            <td>1. John Adams<br>2. John Adams<br></td>
         </tr>
      </table>
   </body>
</html>

使用<xsl：apply-templates>和<xsl：sort> </xsl：sort> </xsl：apply-templates>

1 个答案: