[java] XML parse (파싱)

<?xml version="1.0" encoding="UTF-8"?> <list>     <Parent>         <Child1>123</Child1>         <Child2>홍길동전</Child2>         <Child3>허균</Child3>     </Parent>     <Parent>         <Child1>124</Child1>         <Child2>레미제라블</Child2>         <Child3>빅토르 위고</Child3>     </Parent> </list>

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XmlParsering.java

 

import java.io.InputStream; import java.net.URL; import java.net.URLConnection;   import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory;   import org.w3c.dom.Document; import org.w3c.dom.NodeList; import org.w3c.dom.Node;   public class XmlParsering {       public static void main(String[] args) {           try{               new XmlParsering().start();           }catch (Exception e){             e.printStackTrace();         }       }       private void start() throws Exception{         URL url = new URL("xml 주소입력");         URLConnection connection = url.openConnection();           Document doc = parseXML(connection.getInputStream());         NodeList descNodes = doc.getElementsByTagName("Parent");           for(int i=0; i<descNodes.getLength();i++){               for(Node node = descNodes.item(i).getFirstChild(); node!=null; node=node.getNextSibling()){ //첫번째 자식을 시작으로 마지막까지 다음 형제를 실행                   if(node.getNodeName().equals("Child1")){                     System.out.println(node.getTextContent());                 }else if(node.getNodeName().equals("Child2")){                     System.out.println(node.getTextContent());                 }else if(node.getNodeName().equals("Child3")){                     System.out.println(node.getTextContent());                 }               }           }     }       private Document parseXML(InputStream stream) throws Exception{           DocumentBuilderFactory objDocumentBuilderFactory = null;         DocumentBuilder objDocumentBuilder = null;         Document doc = null;           try{               objDocumentBuilderFactory = DocumentBuilderFactory.newInstance();             objDocumentBuilder = objDocumentBuilderFactory.newDocumentBuilder();               doc = objDocumentBuilder.parse(stream);           }catch(Exception ex){             throw ex;         }                 return doc;     }   }