java 对象转 json 和 xml

import org.json.JSONException;
import org.json.JSONObject;
import org.json.XML;

import com.googlecode.jsonplugin.JSONExeption;
import com.googlecode.jsonplugin.JSONUtil;
/**
* 功能说明： java 对象转json , xml
*
*
*/
public class ConvertXMLandJSON {

public static String convert(Object object, String returnType) throws Exception{
String returnStr = "";
try {
if("json".equals(returnType)){
returnStr=new JSONObject(JSONUtil.serialize(object)).toString(4);
}if("xml".equals(returnType)){
String xmlHead = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>";
returnStr=xmlHead+"<result>"+XML.toString(new JSONObject(JSONUtil.serialize(object)))+"</result>";
}
} catch (JSONException e) {
e.printStackTrace();
throw e;
} catch (JSONExeption e) {
e.printStackTrace();
}
return returnStr;
}

public static void main(String[] args) throws Exception{

Person p = new Person("张三", "男", 19);
System.out.println(ConvertXMLandJSON.convert(p, "json"));
System.out.println(ConvertXMLandJSON.convert(p, "xml"));

}
}