符串转化为xml不转码

把字符串转化为xml（通过dom4j ）之后就变成另外一种编码，如果想原样保存到数据库只能通过强制不转码
特别是针对表情的消息体

public class Dom4jTest2222 {
    public static void main(String[] args) throws Exception {
        //String xml = "11\">";

        String body="11\" pid=\"73972bed-4def-4b3e-b6f2-0713c3ee2b43\">1700测试文本tt\"/>";

        System.out.println(body);

        String txt=body.substring(body.indexOf("1700"), body.indexOf("tt\""));
        System.out.println(body);
         txt="<![CDATA["+txt+"]]>";
         body="<bbs type=\"11\"><txt>"+txt+"</txt></bbs>";
        //body=body.replaceFirst("<txt cont", "<txt ");
         //body=body.replaceFirst("tt\"/>", "tt\"/>]]>");
         System.out.println(body);
        Document doc = null;
        try {
            doc = DocumentHelper.parseText(body);
            System.out.println();
        } catch (DocumentException e) {
            e.printStackTrace();
            doc = null;
        }

        if (doc != null) {
            Element el =(Element) doc.selectSingleNode("bbs/txt");
            String val=el.getText();
            System.out.println(val);

            //el.set
        }
        /*
        if (doc != null) {
            Element el = doc.getRootElement();
            System.out.println("aid="+el.attributeValue("aid"));
            System.out.println("type="+el.attributeValue("type"));

            List lst1 = el.elements();
            for (Object node : lst1) {
                System.out.println("" + ((Element) node).getName());
            }
            List lst2 = doc.selectNodes("bbs/img");
            System.out.println("size=