java读取XML文件的四种方法总结(必看篇)

package xmls;import org.w3c.dom.Document;import org.w3c.dom.Element;import org.w3c.dom.Node;import org.w3c.dom.NodeList;import org.xml.sax.SAXException;import javax.xml.parsers.DocumentBuilder;import javax.xml.parsers.DocumentBuilderFactory;import javax.xml.parsers.ParserConfigurationException;import java.io.File;import java.io.IOException;public class DOMReadDemo {  public static void main(String[] args){    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();    try{      DocumentBuilder db = dbf.newDocumentBuilder();      Document document = db.parse("src/xmls/DOM.xml");      NodeList booklist = document.getElementsByTagName("book");      for(int i = 0; i < booklist.getLength(); i++){        System.out.println("--------第" + (i+1) + "本书----------");        Element ele = (Element) booklist.item(i);        NodeList childNodes= ele.getChildNodes();        for(int j = 0; j < childNodes.getLength(); j++){          Node n = childNodes.item(j);          if(n.getNodeName() != "#text"){            System.out.println(n.getNodeName() + ":" + n.getTextContent());          }        }        System.out.println("---------------------------------");      }    }catch (ParserConfigurationException e){      e.printStackTrace();    }catch (IOException e){      e.printStackTrace();    }catch (SAXException e){      e.printStackTrace();    }  }}