7
SAXON XPath引擎这里是我的代码:在Java中使用
public static void main(String[] args) {
// System.setProperty(
// "javax.xml.xpath.XPathFactory",
// "net.sf.saxon.xpath.XPathFactoryImpl");
String xml="<root><a>#BBB#</a><a>#CCC#</a><b><a>#DDD#</a></b></root>";
try{
JDocument dom = new JDocument(xml);
XPathFactory factory = net.sf.saxon.xpath.XPathFactoryImpl.newInstance();
XPath xpath = factory.newXPath();
XPathExpression expr = xpath.compile("//a[matches(.,'#...#')]");
Object result = expr.evaluate(dom, XPathConstants.NODESET);
NodeList nodes = (NodeList) result;
Nodes sharped = new Nodes(nodes);
for (Node n:sharped){
System.out.println(n.toString());
}
}
catch(Exception e){
e.printStackTrace();
}
}
而且我得到这个:
javax.xml.transform.TransformerException: Impossible to find the function : matches
at org.apache.xpath.compiler.XPathParser.error(XPathParser.java:608)
at org.apache.xpath.compiler.XPathParser.FunctionCall(XPathParser.java:1505)
at org.apache.xpath.compiler.XPathParser.PrimaryExpr(XPathParser.java:1444)
at org.apache.xpath.compiler.XPathParser.FilterExpr(XPathParser.java:1343)
at org.apache.xpath.compiler.XPathParser.PathExpr(XPathParser.java:1276)
这意味着Java的使用org.apache.xpath.compiler.XPathParser
类时,我清楚地通过net.sf.saxon.xpath.XPathFactoryImpl
创建我的工厂。
(我其实只需要在我的xpaths中放一些matches
...所以如果有任何解决方案不涉及撒克逊是已知的,考虑我的需要达成)。
我在做什么错?
如果您对jar文件感到困惑,则需要将saxon核心和saxon dome添加到您的依赖项以使其工作,否则您将得到一个“”无法找到com类节点的对象模型实现。 sun.org.apache.xerces.internal.dom.DeferredDocumentImpl“异常 – Arash 2011-10-05 18:31:03