XSLT xsl（message元素） _XSLT

本文概述

参数说明
XSLT < xsl：message> 元素示例
对于” 是” 条件
对于” 无” 条件

XSLT < xsl：message> 元素用于显示错误消息并帮助调试XSLT处理。它类似于JavaScript警报。该元素将消息缓冲到XSLT处理器, 后者终止处理并将消息发送给调用方应用程序以显示错误消息。

< xsl:message terminate = "yes" | "no"> < /xsl:message>

参数说明终止：指定转换是否应在执行此指令时终止。当终止属性设置为” 是” 时, 元素的内容显示为系统级错误消息的一部分, 并且转换终止。当它设置为” no” 时, 转换继续进行, 而忽略错误消息。默认值是” 否” 。
XSLT < xsl：message> 元素示例对于” 是” 条件让我们以一个示例为例, 通过遍历每个员工来创建一个带有属性” id” 及其子元素” < firstname> ” , ” < lastname> ” , ” < nickname> ” 和” < salary> ” 的< student> 元素。它检查要显示的密钥为名字, 然后打印员工的详细信息, 否则显示错误消息。
employee.xml

< ?xml version = "1.0"?> < ?xml-stylesheet type = "text/xsl" href = "http://www.srcmini.com/employee.xsl"?> < class> < employee id = "001"> < firstname> < /firstname> < lastname> Gupta< /lastname> < nickname> Raju< /nickname> < salary> 30000< /salary> < /employee> < employee id = "024"> < firstname> Sara< /firstname> < lastname> Khan< /lastname> < nickname> Zoya< /nickname> < salary> 25000< /salary> < /employee> < employee id = "056"> < firstname> Peter< /firstname> < lastname> Symon< /lastname> < nickname> John< /nickname> < salary> 10000< /salary> < /employee> < /class>

员工.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> < h2> Employee< /h2> < table border = "1"> < tr bgcolor = "pink"> < th> ID< /th> < th> First Name< /th> < th> Last Name< /th> < th> Nick Name< /th> < th> Salary< /th> < /tr> < xsl:for-each select = "class/employee"> < xsl:if test = "firstname = ''"> < xsl:message terminate = "yes"> A first name field is empty. < /xsl:message> < /xsl:if> < tr> < td> < xsl:value-of select = "@id"/> < /td> < td> < xsl:value-of select = "firstname"/> < /td> < td> < xsl:value-of select = "lastname"/> < /td> < td> < xsl:value-of select = "nickname"/> < /td> < td> < xsl:value-of select = "salary"/> < /td> < /tr> < /xsl:for-each> < /table> < /body> < /html> < /xsl:template> < /xsl:stylesheet>

输出

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对于” 无” 条件 【XSLT xsl（message元素）】员工.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> < h2> Employee< /h2> < table border = "1"> < tr bgcolor = "pink"> < th> ID< /th> < th> First Name< /th> < th> Last Name< /th> < th> Nick Name< /th> < th> Salary< /th> < /tr> < xsl:for-each select = "class/employee"> < xsl:if test = "firstname = ''"> < xsl:message terminate = "no"> A first name field is empty. < /xsl:message> < /xsl:if> < tr> < td> < xsl:value-of select = "@id"/> < /td> < td> < xsl:value-of select = "firstname"/> < /td> < td> < xsl:value-of select = "lastname"/> < /td> < td> < xsl:value-of select = "nickname"/> < /td> < td> < xsl:value-of select = "salary"/> < /td> < /tr> < /xsl:for-each> < /table> < /body> < /html> < /xsl:template> < /xsl:stylesheet>

输出