Xpath，Java和变量 [英] Xpath, Java and variables

问题描述

以下是我目前的代码：

Document document2 = builder.parse(new FileInputStream("C:path to xml file.xml"));
Node theNode2 = (Node) xpath.evaluate("//*[@name='**variable here**']", document2, XPathConstants.NODE);

如果代码显示此处为变量，是否可以使用变量搜索XML文件？到目前为止，我只能对我正在搜索的内容进行硬编码，即：

Where the code says "variable here", is it possible to search the XML file with a variable? I've only been able to hardcode in the thing I'm searching for so far ie :

("//*[@name='happy']", document2, XPathConstants.NODE);

推荐答案

你的问题不是很明确，但我想你是什么希望能够做的是搜索某些东西，但不是硬编码这个变量名吗？

Your question is not very clear but i think what you want to be able to do is search for something but not hardcode this variable name?

String variable = "variable name";
Document document2 = builder.parse(new FileInputStream("C:path to xml file.xml"));
    Node theNode2 = (Node) xpath.evaluate("//*[@name='" + variable+"']", document2, XPathConstants.NODE);

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