xsl无需硬编码即可自动显示xml数据 [英] xsl automatically show xml data without hardcoding
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问题描述
这是我拥有的xml数据
this is the xml data i have
<?xml version="1.0" encoding="UTF-8"?>
<!--xsl file link-->
<?xml-stylesheet type="text/xsl" href="test.xsl"?>
<!--xsd file link-->
<forecast qTime="28/10/20 10:00 PM" qLocation="Singapore">
<weather yyyymmdd="20200430">
<year>2020</year>
<month>04</month>
<date>30</date>
<comment>Plenty of sunshine</comment>
<code>sunny</code>
<highest>32.6</highest>
<lowest>28.4</lowest>
</weather>
<weather yyyymmdd="20200218">
<year>2020</year>
<month>02</month>
<date>18</date>
<comment>Plenty of sunshine</comment>
<code>sunny</code>
<highest>34.6</highest>
<lowest>30.5</lowest>
</weather>
<weather yyyymmdd="20200210">
<year>2020</year>
<month>02</month>
<date>10</date>
<comment>Partly sunny</comment>
<code>partlySunny</code>
<highest>33.1</highest>
<lowest>29.2</lowest>
</weather>
<weather yyyymmdd="20200616">
<year>2020</year>
<month>06</month>
<date>16</date>
<comment>Considerable clouds</comment>
<code>cloudy</code>
<highest>30.5</highest>
<lowest>25.4</lowest>
</weather>
</forecast>
我只想显示表中的数据，仅显示xml，feb，apr和jun中列出的月份，不对其进行硬编码
i would like to show only the data in a table, with only those month that are listed in xml, feb, apr and jun only, without hardcoding it
这是我现在拥有的xsl代码，并且被硬编码为，因此，如果我要删除唯一的apr数据，则会显示第一列，但第二列将为空 .如何以某种方式进行编码，如果该月不在xml上，它将跳到下一个月.
this is the xsl code i have now, and it is hardcoded in, hence, if i were to remove the only apr data, the first column will be shown, but 2nd column will be empty. how to code in a way that, if that month is not on xml, it will skip to the next one.
<?xml version="1.0"?>
<xsl:stylesheet
version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns="http://www.w3.org/1999/xhtml">
<xsl:output method="xml" indent="yes" encoding="UTF-8"/>
<xsl:template match="/forecast">
<!--start of xsl-->
<html>
<!--start of the table-->
<body>
<table>
<tr bgcolor="LightSalmon">
<th>Date</th>
<th>Weather data</th>
</tr>
<!--Feb-->
<tr bgcolor="LightCyan">
<!--first column-->
<th> Feb 20 </th>
<!--column 2-->
<td>
<!--unlisted list-->
<ul style="padding-left:20px">
<xsl:for-each select="weather">
<xsl:sort select="date"/>
<xsl:if test="month=02"> <!--show the following details is month = "02"-->
<li>
<xsl:value-of select="date"/>
<xsl:text>/</xsl:text>
<xsl:value-of select="month"/>
<xsl:text>/</xsl:text>
<xsl:value-of select="substring(year, string-length(year)-1)" />
<xsl:text>, from </xsl:text>
<xsl:value-of select="lowest"/>
<xsl:text>°C to </xsl:text>
<xsl:value-of select="highest"/>
<xsl:text>°C, </xsl:text>
<xsl:value-of select="comment"/>
</li>
</xsl:if>
</xsl:for-each>
</ul>
</td>
</tr> <!--end of feb row-->
<!--Apr-->
<tr bgcolor="Bisque">
<!--first column-->
<th> Apr 20 </th>
<!--column 2-->
<td>
<!--unlisted list-->
<ul style="padding-left:20px">
<xsl:for-each select="weather">
<xsl:sort select="date"/>
<xsl:if test="month=04">
<li>
<xsl:value-of select="date"/>
<xsl:text>/</xsl:text>
<xsl:value-of select="month"/>
<xsl:text>/</xsl:text>
<xsl:value-of select="substring(year, string-length(year)-1)" />
<xsl:text>, from </xsl:text>
<xsl:value-of select="lowest"/>
<xsl:text>°C to </xsl:text>
<xsl:value-of select="highest"/>
<xsl:text>°C, </xsl:text>
<xsl:value-of select="comment"/>
</li>
</xsl:if>
</xsl:for-each>
</ul>
</td>
</tr> <!--end of apr row-->
</table>
</body>
</html>
</xsl:template>
</xsl:stylesheet>
推荐答案
You have to modify the xsl with two features. First of all you have to use muenchian grouping to group the months Afteer use a call template This is your xsl, modified by me.
<?xml version="1.0"?>
<xsl:stylesheet
version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns="http://www.w3.org/1999/xhtml" >
<xsl:output method="html" indent="yes" encoding="UTF-8"/>
<xsl:key name="group-month" match="weather" use="month" />
<xsl:template match="/forecast">
<!--start of xsl-->
<html>
<!--start of the table-->
<body>
<table>
<tr bgcolor="LightSalmon">
<th>Date</th>
<th>Weather data</th>
</tr>
<xsl:variable name="allWeather" select="weather" />
<xsl:for-each select="weather[generate-id(.)=generate-id(key('group-month',month))]">
<xsl:sort select="month"/>
<!--Feb-->
<tr bgcolor="LightCyan">
<!--first column-->
<th>
<xsl:call-template name="monthName">
<xsl:with-param name="month" select = "month" />
</xsl:call-template>
<xsl:value-of select="year"></xsl:value-of>
</th>
<!--column 2-->
<td>
<!--unlisted list-->
<xsl:variable name="month" select="month" />
<xsl:for-each select="$allWeather[month=$month]">
<ul style="padding-left:20px">
<li>
<xsl:value-of select="date"/>
<xsl:text>/</xsl:text>
<xsl:value-of select="month"/>
<xsl:text>/</xsl:text>
<xsl:value-of select="substring(year, string-length(year)-1)" />
<xsl:text>, from </xsl:text>
<xsl:value-of select="lowest"/>
<xsl:text>°C to </xsl:text>
<xsl:value-of select="highest"/>
<xsl:text>°C, </xsl:text>
<xsl:value-of select="comment"/>
</li>
</ul>
</xsl:for-each>
</td>
</tr>
</xsl:for-each>
</table>
</body>
</html>
</xsl:template>
<xsl:template name="monthName">
<xsl:param name = "month" />
<xsl:if test="month=02">
<xsl:text>Feb-</xsl:text>
</xsl:if>
</xsl:template>
</xsl:stylesheet>
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