[英]attribute extraction using Xpath
I have an XML as Java String: 我有一个XML作为Java String:
String abc = "<Tags Value = '635' Type = 'Number'/>";
I am trying to extract the Value
of such an XML object using Xpath 我正在尝试使用Xpath提取此类XML对象的Value
What I tried until now is something like this: 到目前为止,我一直在尝试以下内容:
InputSource doc = new InputSource(abc);
XPath xPath = XPathFactory.newInstance().newXPath();
XPathExpression expr = xPath.compile("/Tags[@Value]");
System.out.println(expr.evaluate(doc));
InputSource doc = new InputSource(abc);
XPath xPath = XPathFactory.newInstance().newXPath();
XPathExpression expr = xPath.compile("/Tags/@Value");
System.out.println(expr.evaluate(doc));
try it 试试吧
public class Example {
public static void main(String[] args) throws FileNotFoundException, XPathExpressionException {
String abc = "<Tags Value = '635' Type = 'Number'/>";
InputSource doc = new InputSource(new StringReader(abc));
XPath xPath = XPathFactory.newInstance().newXPath();
XPathExpression expr = xPath.compile("/Tags/@Value");
System.out.println(expr.evaluate(doc)); // 635
}
}
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