package org.liufeng.course.util;import java.io.InputStream;import java.io.Writer;import java.util.Date;import java.util.HashMap;import java.util.List;import java.util.Map;import javax.servlet.http.HttpServletRequest;import org.dom4j.Document;import org.dom4j.Element;import org.dom4j.io.SAXReader;import org.liufeng.course.message.resp.Article;import org.liufeng.course.message.resp.MusicMessage;import org.liufeng.course.message.resp.NewsMessage;import org.liufeng.course.message.resp.TextMessage;import com.thoughtworks.xstream.XStream;import com.thoughtworks.xstream.core.util.QuickWriter;import com.thoughtworks.xstream.io.HierarchicalStreamWriter;import com.thoughtworks.xstream.io.xml.PrettyPrintWriter;import com.thoughtworks.xstream.io.xml.XppDriver;/** * 消息工具类 */public class MessageUtil {/** * 返回消息类型：文本 */public static final String RESP_MESSAGE_TYPE_TEXT = "text";/** * 文本消息对象转换成xml * alias 起别名,如果没有,根节点将面为com.pacage.textMessage的形式 * @param textMessage 文本消息对象 * @return xml */public static String textMessageToXml(TextMessage textMessage) {xstream.alias("xml", textMessage.getClass());return xstream.toXML(textMessage);}public static void main(String[] args) {TextMessage textMessage = new TextMessage();textMessage.setToUserName("fromUser");textMessage.setFromUserName("toUser");textMessage.setCreateTime(new Date().getTime());textMessage.setMsgType(MessageUtil.RESP_MESSAGE_TYPE_TEXT);textMessage.setFuncFlag(0);String xml = new MessageUtil().textMessageToXml(textMessage);System.out.println(xml);}/** * 扩展xstream，使其支持CDATA块 */private static XStream xstream = new XStream(new XppDriver() {public HierarchicalStreamWriter createWriter(Writer out) {return new PrettyPrintWriter(out) {// 对所有xml节点的转换都增加CDATA标记boolean cdata = true;String createTime = "";@SuppressWarnings("unchecked")public void startNode(String name, Class clazz) {if(name!=null&&name.equals("CreateTime")){createTime = "CreateTime";}else{createTime=name;}super.startNode(name, clazz);}protected void writeText(QuickWriter writer, String text) {if (cdata&&!createTime.equals("CreateTime")) {writer.write("<![CDATA[");writer.write(text);writer.write("]]>");} else {writer.write(text);}}};}});}
，下午某时，天气晴，我在某地，想念你。
