XML 파싱 예제

업무를 진행하다가 오랜만에 XML을 파싱할 일이 생겨서 예제를 만들어본다.

우선 샘플로 사용할 sample.xml이다.

<?xml version="1.0" encoding="utf-8" ?>
<in>
	<propertie name="cnt_1"></propertie>
	<record name="record_1" ref="cnt_1">
		<propertie length="1"></propertie>
		<propertie length="2"></propertie>
	</record>
	<propertie name="cnt_2"></propertie>
	<record name="record_2" ref="cnt_2">
		<propertie length="1"></propertie>
		<propertie length="2"></propertie>
		<propertie length="3"></propertie>
		<propertie length="4"></propertie>
		<propertie length="5"></propertie>
		<propertie length="6"></propertie>
	</record>
</in>

다음으로는 JAVA소스다.

 

import java.io.File;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
 
public class XmlParsingTestMain {
 
	public static void main(String argv[]) {
 
		try {
			File file = new File("sample.xml");
			
			DocumentBuilderFactory docBuildFact = DocumentBuilderFactory.newInstance();
			DocumentBuilder docBuild = docBuildFact.newDocumentBuilder();
			Document doc = docBuild.parse(file);
			doc.getDocumentElement().normalize();
 
			System.out.println("Root element : " + doc.getDocumentElement().getNodeName());
			System.out.println();
 
			NodeList nodeList = doc.getElementsByTagName("in");
			List<Object> inList = new ArrayList<Object>();
 
			System.out.println("nodeList.getLength() ::: " + nodeList.getLength());
			
			nodeList = nodeList.item(0).getChildNodes();
			
			for (int i = 0; i < nodeList.getLength(); i++) {
 
				Node node = nodeList.item(i);
 
				System.out.println("---------- nodeList "+ i + "번째 ------------------");
				
				if (node.getNodeType() == Node.ELEMENT_NODE) {
					// node엘리먼트 
					Element element = (Element)node;
 
					// node 명
					System.out.println("node name : " + node.getNodeName());
					
					Map<String, Object> map = new HashMap<String, Object>();
					
					
					if(!element.getAttribute("name").equals("")) {
						map.put("name", element.getAttribute("name"));
					}
					
					if(!element.getAttribute("ref").equals("")) {
						map.put("ref", element.getAttribute("ref"));
					}
					
					inList.add(map);
					
					if(node.getNodeName().equals("record")) {
						NodeList dataList = node.getChildNodes();
						
						List<Map<String, Object>> inList2 = new ArrayList<Map<String, Object>>();
						
						System.out.println("dataList.getLength() ::: " + dataList.getLength());
						for (int j = 0; j < dataList.getLength(); j++) {
							Node node2 = dataList.item(j);
							if (node2.getNodeType() == Node.ELEMENT_NODE) {
								Element ele2 = (Element) node2;
								Map<String, Object> map2 = new HashMap<String, Object>();
								
								map2.put("ref", ele2.getAttribute("ref"));
								map2.put("length", ele2.getAttribute("length"));
								
								inList2.add(map2);
							}
						}
						map.put("record", inList2);
					}
				}
 
				System.out.println("---------------------------------------------");
			}
			
			System.out.println(inList);
			for(Object node : inList) {
				if(node instanceof Map) {
					System.out.println(node);
				} else if (node instanceof List) {
					List<Map<String, Object>> list = (ArrayList<Map<String, Object>>)node;
					for(Object map : list) {
						System.out.println(map);
					}
				}
			}
 
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}