您想要的是过滤节点的子代，<paragraph>使其仅保留具有节点类型的子代Node.TEXT_NODE。
public static String getFirstLevelTextContent(Node node) {
NodeList list = node.getChildNodes();
StringBuilder textContent = new StringBuilder();
for (int i = 0; i < list.getLength(); ++i) {
Node child = list.item(i);
if (child.getNodeType() == Node.TEXT_NODE)
textContent.append(child.getTextContent());
}
return textContent.toString();
}
在您的示例中，这意味着：
String str = "<paragraph>" + //
"<link>XML</link>" + //
" is a " + //
"<strong>browser based XML editor</strong>" + //
"editor allows users to edit XML data in an intuitive word processor." + //
"</paragraph>";
Document domDoc = null;
try {
DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
ByteArrayInputStream bis = new ByteArrayInputStream(str.getBytes());
domDoc = docBuilder.parse(bis);
} catch (Exception e) {
e.printStackTrace();
}
DocumentTraversal traversal = (DocumentTraversal) domDoc;
NodeIterator iterator = traversal.createNodeIterator(domDoc.getDocumentElement(), NodeFilter.SHOW_ELEMENT, null, true);
for (Node n = iterator.nextNode(); n != null; n = iterator.nextNode()) {
String tagname = ((Element) n).getTagName();
System.out.println(tagname + "=" + getFirstLevelTextContent(n));
}
输出：
paragraph= is a editor allows users to edit XML data in an intuitive word processor.
link=XML
strong=browser based XML editor
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