[英]XML transformation with xsl - for each
I have a xml and I want to transform it into another xml. 我有一个xml,我想将其转换为另一个xml。 Looking for 2 days and have not found any good example for my case;
找了两天,还没有找到适合我的案例的好例子; 2 nodes cars and distances .
2个节点的汽车和距离 。
For each id_car, I have to group the distances (see below the output xml). 对于每个id_car,我必须将距离分组(请参见下面的输出xml)。
Source : 资源 :
<?xml version="1.0" encoding="ISO-8859-1"?>
<output>
<cars>
<car>
<id>1</id>
<brand>Audi</brand>
<type>A4_Quattro</type>
<license>TEST</license>
</car>
<car>
<id>2</id>
<brand>FORD</brand>
<type>XLT_Ranger</type>
<license>PROTOTYPE</license>
</car>
</cars>
<distances>
<distance>
<id_car>1</id_car>
<date>20110901</date>
<distance>123</distance>
</distance>
<distance>
<id_car>1</id_car>
<date>20110902</date>
<distance>194</distance>
</distance>
<distance>
<id_car>2</id_car>
<date>20110907</date>
<distance>24</distance>
</distance>
<distance>
<id_car>2</id_car>
<date>20110915</date>
<distance>105</distance>
</distance>
</distances>
</output>
output xml: 输出xml:
<?xml version="1.0" encoding="ISO-8859-1"?>
<output>
<cars>
<car>
<id>1</id>
<brand>Audi</brand>
<type>A4_Quattro</type>
<distances>
<distance day="20110901">123</distance>
<distance day="20110902">194</distance>
</distances>
</car>
<car>
<id>2</id>
<brand>FORD</brand>
<type>XLT_Ranger</type>
<license>PROTOTYPE</license>
<distances>
<distance day="20110907">24</distance>
<distance day="20110915">105</distance>
</distances>
</car>
</cars>
<output>
This is the result of dozens of attempts: 这是数十次尝试的结果:
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:key name="Dist_car" match="distances/distance" use="id_car" />
<xsl:template match="@*|node()">
<xsl:copy>
<xsl:apply-templates select="@*|node()"/>
<distances>
<xsl:apply-templates select="key('Dist_car', id)"/>
</distances>
</xsl:copy>
</xsl:template>
<xsl:template match="distance">
<distance day="{date}"><xsl:value-of select="distance"/></distance>
</xsl:template>
</xsl:stylesheet>
If anyone has any idea is welcome ...thanks a lot! 如果有人有任何想法,欢迎...非常感谢!
PS : i test the xsl with this one http://xslttest.appspot.com/ . PS:我用这个http://xslttest.appspot.com/测试xsl。
Your template matches too broadly, so it generates too many <distances>
elements and it also copies the original distances. 您的模板匹配范围太广,因此它会生成太多
<distances>
元素,并且还会复制原始距离。
Try to narrow down the match rules. 尝试缩小匹配规则。 You can also copy sections of the source document using
xsl:copy-of
. 您还可以使用
xsl:copy-of
源文档的各个部分。
I'm getting your desired output if I change your stylesheet a bit to: 如果将样式表稍微更改为以下内容,则会得到所需的输出:
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:key name="Dist_car" match="distances/distance" use="id_car" />
<xsl:template match="/">
<output>
<cars>
<xsl:apply-templates select="output/cars" />
</cars>
</output>
</xsl:template>
<xsl:template match="car">
<xsl:copy>
<xsl:copy-of select="@*|node()" />
<distances>
<xsl:apply-templates select="key('Dist_car', id)" />
</distances>
</xsl:copy>
</xsl:template>
<xsl:template match="distance">
<distance day="{date}">
<xsl:value-of select="distance" />
</distance>
</xsl:template>
</xsl:stylesheet>
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