如何在 XPath 中使用一个表达式从同一节点选择两个属性？

发布于 2024-11-07 13:24:48 字数 101 浏览 0 评论 0原文

例如：

//person[@id='abc123']/@haircolor|/@weight"

PS。有很多“人”记录

原文

For example:

//person[@id='abc123']/@haircolor|/@weight"

PS. there are lots of "person" records

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梦里人 2024-11-14 13:24:48

试试这个：

//person[@id='abc123']/@*[name()='weight' or name()='haircolor']

如果您使用的是 XPath 2.0 处理器，您还可以使用更漂亮的选项：

//person[@id='abc123']/(@haircolor|@weight)`

Try this:

//person[@id='abc123']/@*[name()='weight' or name()='haircolor']

If you're using an XPath 2.0 processor, you may also use a prettier option:

//person[@id='abc123']/(@haircolor|@weight)`

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榕城若虚 2024-11-14 13:24:48

您是否想要根据多个属性的值搜索人员节点。如果这是问题，那么您可以使用 ands 例如，

//person[@id='abc123' and @haircolor='blue' and @weight='...']

如果您想搜索单个属性，但返回其他属性的值，我会这样做：

 <xsl:template match="person[@id='abc123']">
     <xsl:value-of select="@haircolor"/>
     <xsl:value-of select="@weight"/>
  </xsl:template>

Are you wanting to search for person nodes based on the value of multiple attributes. If that's the question then you can just use ands e.g.

//person[@id='abc123' and @haircolor='blue' and @weight='...']

If you want to search on a single attribute, but return the values of the other attributes, I would do something like this:

 <xsl:template match="person[@id='abc123']">
     <xsl:value-of select="@haircolor"/>
     <xsl:value-of select="@weight"/>
  </xsl:template>

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娇纵 2024-11-14 13:24:48

如果您尝试获取指定属性的值，我建议为请求的人引入一个变量。

<xsl:variable name="person" select="//person[@id = 'abc123']" />

之后，您可以使用指定的变量从请求的人那里获取任何属性。

<xsl:value-of select="$person/@haircolor" />
<xsl:value-of select="$person/@weight" />

If you are trying to get the values of the specified attributes I would suggest introducing a variable for the requested person.

<xsl:variable name="person" select="//person[@id = 'abc123']" />

After that you can get any attribute from the requested person by using the specified variable.

<xsl:value-of select="$person/@haircolor" />
<xsl:value-of select="$person/@weight" />

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溺ぐ爱和你が 2024-11-14 13:24:48

示例 XML：

<X>
<Y ATTRIB1=attrib1_value ATTRIB2=attrib2_value/>
</X>

string xPath="/" + X + "/" + Y +
"[@" + ATTRIB1 + "='" + attrib1_value + "']" +
"[@" + ATTRIB2 + "='" + attrib2_value + "']"

XPath 测试台：
http://www.whitebeam.org/library/guide/TechNotes/xpathtestbed.rhtm

Sample XML:

<X>
<Y ATTRIB1=attrib1_value ATTRIB2=attrib2_value/>
</X>

string xPath="/" + X + "/" + Y +
"[@" + ATTRIB1 + "='" + attrib1_value + "']" +
"[@" + ATTRIB2 + "='" + attrib2_value + "']"

XPath Testbed:
http://www.whitebeam.org/library/guide/TechNotes/xpathtestbed.rhtm

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