{"id":4738,"date":"2024-03-14T01:53:49","date_gmt":"2024-03-14T01:53:49","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-can-i-retrieve-a-node-based-on-its-name-using-dom4j\/"},"modified":"2025-07-31T12:38:45","modified_gmt":"2025-07-31T12:38:45","slug":"how-can-i-retrieve-a-node-based-on-its-name-using-dom4j","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-can-i-retrieve-a-node-based-on-its-name-using-dom4j\/","title":{"rendered":"dom4j XPath Get Node by Name"},"content":{"rendered":"<p>To locate a node based on its node name, you can use an XPath expression. This functionality can be easily implemented using the dom4j library. Here is an example code:<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">import<\/span> org.dom4j.Document;\r\n<span class=\"hljs-keyword\">import<\/span> org.dom4j.DocumentException;\r\n<span class=\"hljs-keyword\">import<\/span> org.dom4j.Element;\r\n<span class=\"hljs-keyword\">import<\/span> org.dom4j.Node;\r\n<span class=\"hljs-keyword\">import<\/span> org.dom4j.XPath;\r\n<span class=\"hljs-keyword\">import<\/span> org.dom4j.io.SAXReader;\r\n\r\n<span class=\"hljs-keyword\">import<\/span> java.util.List;\r\n\r\n<span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">Dom4jExample<\/span> {\r\n\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">static<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">main<\/span><span class=\"hljs-params\">(String[] args)<\/span> {\r\n        <span class=\"hljs-keyword\">try<\/span> {\r\n            <span class=\"hljs-type\">SAXReader<\/span> <span class=\"hljs-variable\">reader<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">SAXReader<\/span>();\r\n            <span class=\"hljs-type\">Document<\/span> <span class=\"hljs-variable\">document<\/span> <span class=\"hljs-operator\">=<\/span> reader.read(<span class=\"hljs-string\">\"example.xml\"<\/span>);\r\n\r\n            <span class=\"hljs-type\">String<\/span> <span class=\"hljs-variable\">nodeName<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-string\">\"book\"<\/span>; <span class=\"hljs-comment\">\/\/ \u8981\u83b7\u53d6\u7684\u8282\u70b9\u540d\u79f0<\/span>\r\n\r\n            <span class=\"hljs-comment\">\/\/ \u4f7f\u7528XPath\u8868\u8fbe\u5f0f\u5b9a\u4f4d\u8282\u70b9<\/span>\r\n            <span class=\"hljs-type\">XPath<\/span> <span class=\"hljs-variable\">xPath<\/span> <span class=\"hljs-operator\">=<\/span> document.createXPath(<span class=\"hljs-string\">\"\/\/\"<\/span> + nodeName);\r\n            List&lt;Node&gt; nodes = xPath.selectNodes(document);\r\n\r\n            <span class=\"hljs-keyword\">for<\/span> (Node node : nodes) {\r\n                <span class=\"hljs-type\">Element<\/span> <span class=\"hljs-variable\">element<\/span> <span class=\"hljs-operator\">=<\/span> (Element) node;\r\n                System.out.println(element.asXML()); <span class=\"hljs-comment\">\/\/ \u8f93\u51fa\u8282\u70b9\u5185\u5bb9<\/span>\r\n            }\r\n        } <span class=\"hljs-keyword\">catch<\/span> (DocumentException e) {\r\n            e.printStackTrace();\r\n        }\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>In the example above, we start by creating a SAXReader object to read an XML file, then use an XPath expression (&#8220;\/\/&#8221; + nodeName) to locate all nodes with the name &#8220;book&#8221; and print their content. You can adjust the node name and XML file path as needed.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>To locate a node based on its node name, you can use an XPath expression. This functionality can be easily implemented using the dom4j library. Here is an example code: import org.dom4j.Document; import org.dom4j.DocumentException; import org.dom4j.Element; import org.dom4j.Node; import org.dom4j.XPath; import org.dom4j.io.SAXReader; import java.util.List; public class Dom4jExample { public static void main(String[] args) { try [&hellip;]<\/p>\n","protected":false},"author":14,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[4073,189,4542,188,4541],"class_list":["post-4738","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-dom4j","tag-java-xml","tag-node-retrieval","tag-xml-parsing","tag-xpath"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>dom4j XPath Get Node by Name - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn how to retrieve XML nodes by name using XPath in dom4j with Java code examples. 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