XML json map list转换
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package com.shine.framework.core.util;import java.io.ByteArrayOutputStream;import java.util.ArrayList;import java.util.HashMap;import java.util.Iterator;import java.util.List;import java.util.Map;import net.sf.json.JSON;import net.sf.json.JSONSerializer;import net.sf.json.xml.XMLSerializer;import org.dom4j.Document;import org.dom4j.DocumentHelper;import org.dom4j.Element;import org.dom4j.io.OutputFormat;import org.dom4j.io.XMLWriter;/** * common xml conver utility * * @author viruscodecn@gmail.com * @version Framework 2010.10.26 * @url http://blog.csdn.net/arjick/article/details/6251777 */public class XmlConverUtil {/** * map to xml xml <node><key label="key1">value1</key><key * label="key2">value2</key>......</node> * * @param map * @return */public static String maptoXml(Map map) {Document document = DocumentHelper.createDocument();Element nodeElement = document.addElement("node");for (Object obj : map.keySet()) {Element keyElement = nodeElement.addElement("key");keyElement.addAttribute("label", String.valueOf(obj));keyElement.setText(String.valueOf(map.get(obj)));}return doc2String(document);}/** * list to xml xml <nodes><node><key label="key1">value1</key><key * label="key2">value2</key>......</node><node><key * label="key1">value1</key><key * label="key2">value2</key>......</node></nodes> * * @param list * @return */public static String listtoXml(List list) throws Exception {Document document = DocumentHelper.createDocument();Element nodesElement = document.addElement("nodes");int i = 0;for (Object o : list) {Element nodeElement = nodesElement.addElement("node");if (o instanceof Map) {for (Object obj : ((Map) o).keySet()) {Element keyElement = nodeElement.addElement("key");keyElement.addAttribute("label", String.valueOf(obj));keyElement.setText(String.valueOf(((Map) o).get(obj)));}} else {Element keyElement = nodeElement.addElement("key");keyElement.addAttribute("label", String.valueOf(i));keyElement.setText(String.valueOf(o));}i++;}return doc2String(document);}/** * json to xml {"node":{"key":{"@label":"key1","#text":"value1"}}} conver * <o><node class="object"><key class="object" * label="key1">value1</key></node></o> * * @param json * @return */public static String jsontoXml(String json) {try {XMLSerializer serializer = new XMLSerializer();JSON jsonObject = JSONSerializer.toJSON(json);return serializer.write(jsonObject);} catch (Exception e) {e.printStackTrace();}return null;}/** * xml to map xml <node><key label="key1">value1</key><key * label="key2">value2</key>......</node> * * @param xml * @return */public static Map xmltoMap(String xml) {try {Map map = new HashMap();Document document = DocumentHelper.parseText(xml);Element nodeElement = document.getRootElement();List node = nodeElement.elements();for (Iterator it = node.iterator(); it.hasNext();) {Element elm = (Element) it.next();map.put(elm.attributeValue("label"), elm.getText());elm = null;}node = null;nodeElement = null;document = null;return map;} catch (Exception e) {e.printStackTrace();}return null;}/** * xml to list xml <nodes><node><key label="key1">value1</key><key * label="key2">value2</key>......</node><node><key * label="key1">value1</key><key * label="key2">value2</key>......</node></nodes> * * @param xml * @return */public static List xmltoList(String xml) {try {List<Map> list = new ArrayList<Map>();Document document = DocumentHelper.parseText(xml);Element nodesElement = document.getRootElement();List nodes = nodesElement.elements();for (Iterator its = nodes.iterator(); its.hasNext();) {Element nodeElement = (Element) its.next();Map map = xmltoMap(nodeElement.asXML());list.add(map);map = null;}nodes = null;nodesElement = null;document = null;return list;} catch (Exception e) {e.printStackTrace();}return null;}/** * xml to json <node><key label="key1">value1</key></node> 转化为 * {"key":{"@label":"key1","#text":"value1"}} * * @param xml * @return */public static String xmltoJson(String xml) {XMLSerializer xmlSerializer = new XMLSerializer();return xmlSerializer.read(xml).toString();}/** * * @param document * @return */public static String doc2String(Document document) {String s = "";try {// 使用输出流来进行转化ByteArrayOutputStream out = new ByteArrayOutputStream();// 使用UTF-8编码OutputFormat format = new OutputFormat(" ", true, "UTF-8");XMLWriter writer = new XMLWriter(out, format);writer.write(document);s = out.toString("UTF-8");} catch (Exception ex) {ex.printStackTrace();}return s;}}
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