- XPath 教程
- XPath - 首页
- XPath - 概述
- XPath - 表达式
- XPath - 节点
- XPath - 绝对路径
- XPath - 相对路径
- XPath - 轴
- XPath - 运算符
- XPath - 通配符
- XPath - 谓语
- XPath - 有用资源
- XPath - 快速指南
- XPath - 有用资源
- XPath - 讨论
XPath - 绝对路径
位置路径指定 XML 文档中节点的位置。此路径可以是绝对的或相对的。如果位置路径以根节点或“/”开头,则它是一个绝对路径。以下是一些使用绝对路径查找元素的示例。
/class/student - 选择 class 根节点内的 student 节点。
<xsl:for-each select = "/class/student">
/class/student/firstname - 选择 class 根节点内 student 节点中的 firstname。
<p><xsl:value-of select = "/class/student/firstname"/></p>
示例
在此示例中,我们创建了一个示例 XML 文档 students.xml 及其使用 XPath 表达式的样式表文档 students.xsl。
以下是使用的示例 XML。
students.xml
<?xml version = "1.0"?> <?xml-stylesheet type = "text/xsl" href = "students.xsl"?> <class> <student rollno = "393"> <firstname>Dinkar</firstname> <lastname>Kad</lastname> <nickname>Dinkar</nickname> <marks>85</marks> </student> <student rollno = "493"> <firstname>Vaneet</firstname> <lastname>Gupta</lastname> <nickname>Vinni</nickname> <marks>95</marks> </student> <student rollno = "593"> <firstname>Jasvir</firstname> <lastname>Singh</lastname> <nickname>Jazz</nickname> <marks>90</marks> </student> </class>
students.xsl
<?xml version = "1.0" encoding = "UTF-8"?> <xsl:stylesheet version = "1.0" xmlns:xsl = "http://www.w3.org/1999/XSL/Transform"> <xsl:template match = "/" > <html> <body> <h3>Details of each Students. </h3> <table border = "1"> <tr bgcolor = "#9acd32"> <th>Roll No</th> <th>First Name</th> <th>Last Name</th> <th>Nick Name</th> <th>Marks</th> </tr> <tr> <td><xsl:value-of select = "/class/student[1]/@rollno"/></td> <td><xsl:value-of select = "/class/student[1]/firstname"/></td> <td><xsl:value-of select = "/class/student[1]/lastname"/></td> <td><xsl:value-of select = "/class/student[1]/nickname"/></td> <td><xsl:value-of select = "/class/student[1]/marks"/></td> </tr> <tr> <td> <xsl:value-of select = "/class/student/@rollno"/> </td> <td><xsl:value-of select = "/class/student[2]/firstname"/></td> <td><xsl:value-of select = "/class/student[2]/lastname"/></td> <td><xsl:value-of select = "/class/student[2]/nickname"/></td> <td><xsl:value-of select = "/class/student[2]/marks"/></td> </tr> <tr> <td> <xsl:value-of select = "/class/student[3]/@rollno"/> </td> <td><xsl:value-of select = "/class/student[3]/firstname"/></td> <td><xsl:value-of select = "/class/student[3]/lastname"/></td> <td><xsl:value-of select = "/class/student[3]/nickname"/></td> <td><xsl:value-of select = "/class/student[3]/marks"/></td> </tr> </table> </body> </html> </xsl:template> </xsl:stylesheet>
验证输出
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