[英]attribute extraction using Xpath
我有一個XML作為Java String:
String abc = "<Tags Value = '635' Type = 'Number'/>";
我正在嘗試使用Xpath提取此類XML對象的Value
到目前為止,我一直在嘗試以下內容:
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));
試試吧
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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