java解析xml/xsl报:java.lang.NoSuchMethodException

[ycufo]

xsl里添了了一个script，代码如下：

<?xml version="1.0"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:msxsl="urn:schemas-microsoft-com:xslt"
xmlns:DateFuncs="dfuncs">
<xsl:output omit-xml-declaration="yes" encoding="UTF-8" method="html"/>
<!-- External scripts -->
<msxsl:script language="VBScript" implements-prefix="DateFuncs">
<![CDATA[
' Input : from_date (yyyymmdd), to_date (yyyymmdd)
' Returns: number of days between from_date and to_date (to_date not included)
Function DaysBetween(from_date, to_date)
Dim d1, d2

if len(from_dt) <> 8 or len(to_dt) <> 8 _
then
DaysBetween = -1
end if

' Translate to format yyyy-mm-dd
d1 = left(from_date,4) & "-" & mid(from_date,5,2) & "-" & right(from_date,2)
d2 = left(to_date,4) & "-" & mid(to_date,5,2) & "-" & right(to_date,2)

if not isdate(d1) or not isdate(d2) _
then
DaysBetween = -1
else
DaysBetween = DateDiff("d", CDate(d1), CDate(d2))
end if
End Function
]]>
</msxsl:script>

。。。。。。
<xsl:template name="daysBetween">
<xsl:param name="v_from_date"/>
<xsl:param name="v_to_date"/>
<xsl:value-of select="DateFuncs:DaysBetween(substring($v_from_date,1),substring($v_to_date,1))"/>
</xsl:template>

<!-- 调用 -->
<xsl:call-template name="daysBetween">
<xsl:with-param name="v_from_date" select="./xmlsum/usg[@type='XPLN']/d7/d7[@type='GSM']/fromdt"/>
<xsl:with-param name="v_to_date" select="./xmlsum/usg[@type='XPLN']/d7/d7[@type='GSM']/todt"/>
</xsl:call-template>

在java中解析的代码
InputStream xmlStream = new ByteArrayInputStream(invoiceContent.getBytes("UTF-8"));
InputStream xsltStream = new ByteArrayInputStream(
OVRefreshCache.getURLContent(basePath + xslFile).getBytes("UTF-8"));

Source xsltSource = new StreamSource(xsltStream);

TransformerFactory factory = TransformerFactory.newInstance();
Transformer trans = factory.newTransformer(xsltSource);
result = new StreamResult(new ByteArrayOutputStream());
trans.transform(new StreamSource(xmlStream), result);

执行最后一句的时候报错：
(错误位置未知)java.lang.NoSuchMethodException: For extension function, could not find method java.lang.String.DaysBetween([ExpressionContext,] #STRING).


请帮忙看一下，谢谢！

[sebatinsky]

没有方法,我想你执行到最后一句出现了错误吧,最后那句也要调用方法啊,你就跳转到那个方法看看,(应该是没有这个方法,)所以还是没有方法的问题.

[ycufo]

是，就是想知道为什么xsl里有DaysBetween方法，解析的时候却找不到？

[ycufo]

同样的xsl文件，在js里使用Msxml2.FreeThreadedDOMDocument解析是没有问题的，用java解析就有问题。

[ycufo]

查了一天，在网上查到.net里的解决办法：
XslCompiledTransform xslt = new XslCompiledTransform();
string xslPath = Server.MapPath("productlist.xsl");
XsltSettings axslset = new XsltSettings();
axslset.EnableScript = true;
xslt.Load(xslPath, axslset,new XmlUrlResolver());

Java的没有找到解决的办法

[叶涛网站推广优化]

还是直接在js里使用Msxml2.FreeThreadedDOMDocument解析吧

[ycufo]

先谢了。这个XML是从其他业务系统获取的，需要在服务器端解析显示页面，继续在线等。