Question

我的XML如下:

<As>
<a>
    <Bs>
        <b>5</b>
    <Bs>
</a>
<a>
    <Bs>
        <b>9</b>
    <Bs>
</a>
<a></a>
<a>
    <Bs>
        <b>12</b>
        <b>14</b>
        <b>15</b>
    </Bs>
</a>

我现在要删除选定的行文。 Sayuser已经选定了Node <b>14</b>。

我的发言如下:

String expression  =  "/As/a[4]/Bs/b[2]";
Node node = (Node) xpath.evaluate(expression, doc, XPathConstants.NODE);
node.getParentNode().removeChild(node);

它是例外:

javax.xml.transform.TransformerException: Extra illegal tokens:  health-history-questions ,  / ,  health-history-question ,  [ ,  3 ,  ] 
at org.apache.xpath.compiler.XPathParser.error(XPathParser.java:610)
at org.apache.xpath.compiler.XPathParser.initXPath(XPathParser.java:145)
at org.apache.xpath.XPath.<init>(XPath.java:178)
at org.apache.xpath.XPath.<init>(XPath.java:266)
at org.apache.xpath.jaxp.XPathImpl.eval(XPathImpl.java:195)
at org.apache.xpath.jaxp.XPathImpl.evaluate(XPathImpl.java:281)

Answer 1

令人痛心的Guys问题是,表达形式缺失。因此,我犯了错误。我道歉。

Answer 2

为什么使用这种复杂的XPath? 引言

String expression = "//b[.=14]";

or, if you must check the correct hierarchy, this one:

String expression = "/As/a/Bs/b[.=14]";

友情链接