如何解析xml文件 import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.Node; import org.w3c.dom.NodeList; import java.io.File; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import javax.xml.xpath.XPath; import javax.xml.xpath.XPathConstants; import javax.xml.xpath.XPathExpression; import javax.xml.xpath.XPathFactory; / * @author shiqil.liu * @date 2019-08-21 17:05 */ public class DealXml { private static Logger logger = LoggerFactory.getLogger(DealXml.class); /* public static void main(String[] args) { try { Document doc=loadDocument(“aaa.xml”); XPathFactory factory = XPathFactory.newInstance();//实例化XPathFactory对象 XPath xpath = factory.newXPath(); XPathExpression compile = xpath.compile(“https://import”);//一个斜线代表一层，应该也可以写成//import! NodeList nodes = (NodeList)compile.evaluate(doc, XPathConstants.NODESET);//student节点的所有节点 for(int i=0;i<nodes.getLength();i++) { Element item = (Element) nodes.item(i); String s1 = item.getAttribute(“resource”); System.out.println(s1); } } catch (Exception e) { e.printStackTrace(); } //org.dom4j.io.SAXReader reader = new SAXReader(); 从inputStream读取 //Document doc = reader.read(inputStream); }*/ public static void main(String[] args) { try { Document doc = loadDocument(“bbb.xml”); XPathFactory factory = XPathFactory.newInstance();//实例化XPathFactory对象 XPath xpath = factory.newXPath(); XPathExpression compile = xpath.compile(“https://form”);//一个斜线代表一层，应该也可以写成//import! NodeList nodes = (NodeList) compile.evaluate(doc, XPathConstants.NODESET);//student节点的所有节点 for (int i = 0; i < nodes.getLength(); i++) { Element item = (Element) nodes.item(i); String s1 = item.getAttribute(“controller”); String s2 = item.getAttribute(“action”); System.out.println(s1 + “_” + s2); NodeList childNodes = item.getElementsByTagName(“property”); //NodeList childNodes = item.getChildNodes(); for (int j = 0; j < childNodes.getLength(); j++) { Element item1 = (Element) childNodes.item(j); String ss1 = item1.getAttribute(“name”); String ss2 = item1.getAttribute(“option”); String ss3 = item1.getAttribute(“regex”); String ss4 = item1.getAttribute(“message”); System.out.println(ss1 + “_” + ss2 + “_” + ss3 + “_” + ss4); } System.out.println(“”); System.out.println(“———————————“); System.out.println(“”); } } catch (Exception e) { e.printStackTrace(); } //org.dom4j.io.SAXReader reader = new SAXReader(); 从inputStream读取 //Document doc = reader.read(inputStream); } private static Document loadDocument(String path) throws Exception { DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();//实例化DocumentBuilderFactory对象 DocumentBuilder builder = dbf.newDocumentBuilder(); File file = new File(Thread.currentThread().getContextClassLoader().getResource(path).getPath()); if (file.exists()) { return builder.parse(file); } else { logger.warn(“配置文件没有被找到{}”, path); return null; } } }
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