Java 中的 XPath 节点集 [英] XPath NodeSet in Java

问题描述

我在eclipse中有这个代码

I have this code in eclipse

NodeSet nodes = (NodeSet) xPath.evaluate(expression,inputSource, XPathConstants.NODESET);

并且它在 NodeSet 上给了我编译时错误.

and its giving me compile time error on NodeSet.

这些是我导入的东西.你能告诉我为什么这样做吗?

These are the stuff that I have imported. Can you tell me why it's doing this?

import javax.xml.xpath.*;
import org.xml.sax.InputSource;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.util.*;

推荐答案

如上所述，NodeSet 不是标准库的一部分.但是，从 文档, NodeSet 映射到一个 NodeList，所以你可以直接使用它.所以它会变成:

As indicated NodeSet is not part of the standard libraries. However, from the documentation, NodeSet maps to a NodeList, so you could just use that instead. So it would become:

NodeList nodes = (NodeList) xPath.evaluate(expression,inputSource, XPathConstants.NODESET);

您必须导入 org.w3c.dom.NodeList.

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