java 从 Xpath 获取属性
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Get Attribute from Xpath
提问by ThreaT
I need a method that can give me back the value of a specified attribute inside a specified xpath. So for example if we have xpath = /root/foo/body/part[5]/test[3]and we want the value of the attribute idinside the test[3]tag of the xpath then I need to be able to call a method that looks something like this:
我需要一种方法来返回指定 xpath 中指定属性的值。因此，例如，如果我们有xpath = /root/foo/body/part[5]/test[3]并且我们想要xpath 标签id内的属性值，test[3]那么我需要能够调用一个看起来像这样的方法：
public String getAttributeValue(String xpath, String attribute) {
String attributeValue = "xpath/attribute".value();
return attributeValue;
}
采纳答案by ThreaT
Figured it out...
弄清楚了...
public String retrieveAttributeValue(Document document, String xpath, String attribute) throws IOException, ParserConfigurationException, SAXException, XPathExpressionException {
XPath xPath = XPathFactory.newInstance().newXPath();
XPathExpression xPathExpression = xPath.compile(xpath + "/" + attribute);
String attributeValue = "" + xPathExpression.evaluate(document, XPathConstants.STRING);
return attributeValue;
}
回答by BigMike
You can try with the @command
您可以尝试使用@命令
//xpath[@attribute]
Note that you can also filter with the @
请注意，您还可以使用 @
//xpath[@attribute='filtervalue']
