使用Saxon-HE检索XSLT 2.0中的哈希图值
[英]Retrieving hashmap values in XSLT 2.0 Using Saxon-HE
问题描述
I want to pass Map object as parameter in XSLT 2.0 version and i want to retrieve the Map object data under XSLT 2.0 file using Saxon-HE. 
我想在XSLT 2.0版本中将Map对象作为参数传递，并且我想使用Saxon-HE在XSLT 2.0文件下检索Map对象数据。
I googled a lot and found Retrieving hashmap values in XSLT 我在Google上搜索了很多，发现在XSLT中检索哈希图值
link which completely matches according to my need but i am getting exception such as 完全根据我的需要匹配的链接，但我正在获取诸如
Static error in {map:get($mapData,'1')} in expression in xsl:variable/@select on line 23 column 94 of transformer.xslt: XPST0017: Cannot find a 2-argument function named { http://ns.saxonica.com/map }get().
I don't know where i am doing mistake. 我不知道我在哪里做错。
These are the my files. 这些是我的文件。 SexsonDemo.java SexsonDemo.java
public static void transform(String xmlFile, String xslFile) throws TransformerException,
TransformerConfigurationException {
TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer(new StreamSource(new File(xslFile)));
Map<String,String> mapData = new HashMap<String,String>();
mapData.put("1", "188 E 6th Street");
transformer.setParameter("mapData", mapData);
transformer.transform(new StreamSource(new File(xmlFile)), new StreamResult(System.out));
}
transformer.xsl transformer.xsl
xmlns:map="http://ns.saxonica.com/map" exclude-result-prefixes="map" >
<xsl:variable name="mapData"/>
<xsl:variable name="addressData" select="map:get($mapData,'1')"/>
at below line i getting exception map:get($mapData,'1') 在下面的行我得到异常map:get($mapData,'1')
2 个解决方案
解决方案1
2 2018-10-24 12:25:19
I think that the namespace URI { http://ns.saxonica.com/map } was used during some early Saxon experiments in implementing maps, long before they were part of the W3C specification: see https://www.saxonica.com/html/documentation9.4/extensions/map.html 我认为名称空间URI { http://ns.saxonica.com/map }在实施地图的早期Saxon实验中就已使用，早在它们成为W3C规范的一部分之前：请参阅https://www.saxonica.com /html/documentation9.4/extensions/map.html
That specification was long ago superseded by the W3C map functions, which are in namespace http://www.w3.org/2005/xpath-functions/map . 早在W3C映射功能（位于命名空间http://www.w3.org/2005/xpath-functions/map中）就已取代了该规范。
That's part of your problem. 那是你问题的一部分。 The other part is how to convert a Java map to an XDM map. 另一部分是如何将Java映射转换为XDM映射。 You can do this in Saxon 9.8/9.9 using the static method XdmMap.makeMap(java.util.Map) . 您可以在Saxon 9.8 / 9.9中使用静态方法XdmMap.makeMap(java.util.Map) 。 It might be easier in some cases to pass in a string containing a JSON representation of the map, and then parse it within the stylesheet using the parse-json() function. 在某些情况下，传递包含地图的JSON表示的字符串，然后使用parse-json（）函数在样式表中对其进行解析，可能会更容易。
解决方案2
1 已采纳 2018-10-24 12:13:45
As for reading XDM maps in XSLT, see https://xsltfiddle.liberty-development.net/6qVRKwZ which has three examples 至于在XSLT中读取XDM映射，请参阅https://xsltfiddle.liberty-development.net/6qVRKwZ ，其中包含三个示例
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:map="http://www.w3.org/2005/xpath-functions/map"
xmlns:array="http://www.w3.org/2005/xpath-functions/array"
exclude-result-prefixes="#all"
expand-text="yes"
version="3.0">
<xsl:param name="mapData" as="map(xs:string, xs:string)" select="map { '1' : '188 E 6th Street' }"/>
<xsl:mode on-no-match="shallow-copy"/>
<xsl:output method="html" indent="yes" html-version="5"/>
<xsl:template match="/">
<html>
<head>
<title>.NET XSLT Fiddle Example</title>
</head>
<body>
<h1>XPath 3.1 map example</h1>
<section>
<h2>function call syntax</h2>
<p><code>$mapData('1')</code>: <code>{$mapData('1')}</code></p>
</section>
<section>
<h2>map:get</h2>
<p><code>map:get($mapData, '1')</code>: <code>{map:get($mapData, '1')}</code></p>
</section>
<section>
<h2><code>?</code> operator</h2>
<p><code>$mapData?('1')</code>: <code>{$mapData?('1')}</code></p>
</section>
</body>
</html>
</xsl:template>
</xsl:stylesheet>
For setting this parameter from your Java code, consider using the Saxon s9api http://saxonica.com/html/documentation9.8/using-xsl/embedding/s9api-transformation.html to run Saxon and then you can use hhttp://saxonica.com/html/documentation9.8/javadoc/net/sf/saxon/s9api/Xslt30Transformer.html#setStylesheetParameters-java.util.Map- to pass in an XdmMap constructed from your Java Map with http://saxonica.com/html/documentation9.8/javadoc/net/sf/saxon/s9api/XdmMap.html#makeMap-java.util.Map- . 要从Java代码设置此参数，请考虑使用Saxon s9api http://saxonica.com/html/documentation9.8/using-xsl/embedding/s9api-transformation.html运行Saxon，然后可以使用hhttp：/ /saxonica.com/html/documentation9.8/javadoc/net/sf/saxon/s9api/Xslt30Transformer.html#setStylesheetParameters-java.util.Map-可以传入使用http：// saxonica从Java Map构建的XdmMap。 com / html / documentation9.8 / javadoc / net / sf / saxon / s9api / XdmMap.html＃makeMap-java.util.Map- 。
Short Java sample is 简短的Java示例是
public static void MapExample() throws SaxonApiException {
Processor processor = new Processor(false);
XsltExecutable executable = processor.newXsltCompiler().compile(new StreamSource("sheet.xsl"));
Xslt30Transformer transformer = executable.load30();
Map<String,String> mapData = new HashMap<String,String>();
mapData.put("1", "188 E 6th Street");
HashMap<QName, XdmValue> parameters = new HashMap<>();
parameters.put(new QName("mapData"), XdmMap.makeMap(mapData));
transformer.setStylesheetParameters(parameters);
transformer.applyTemplates(new StreamSource("input1.xml"), transformer.newSerializer(System.out));
System.out.println();
}
声明:本站的技术帖子网页，遵循CC BY-SA 4.0协议，如果您需要转载，请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.