WebService处理.net中Dataset问题解决办法
　　在此我用的是Asix框架来解决的，在Asix包下有一个叫作WSDL2Java的类，可用来解析WSDL以生成Java代码供程序员使用，我尝试过用soap来处理Dataset，不过没有成功（浪费了不少时间）。
　　首先下载Asix包，直接到Apache下就可以了，下载完成后将解压的webroot/lib下的包全部拷到JDK的lib目录下。然后由控制台进入Jdk目录，运行：
Java -Djava.ext.dirs=lib org.apache.axis.wsdl.WSDL2Java http://www.webxml.com.cn/WebServices/TrainTimeWebService.asmx?wsdl
红色部分是你要的文件调用的webservice程序的地址，就是上面说到的那个wsdl文件，当然前提你必须配置好了Java的环境变量，接下来你会看到在Jdk目录下生成出来了一个cn（适个人设置而定）文件夹，这里面就是Asix为我们生成的Java代码。
　　然后将文件夹拷入你的项目的src目录下即可。生成出来的代码中我主要使用的是TrainTimeWebServiceLocator，TrainTimeWebServiceSoap，GetDetailInfoByTrainCodeResponseGetDetailInfoByTrainCodeResult这几个类，
　　首先将信息封装到一个Pojo类里，

public class Train {private String trainStation; private String arriveTime; private String startTime; private String km;public String getArriveTime() {return arriveTime;}public void setArriveTime(String arriveTime) {this.arriveTime = arriveTime;}public String getKm() {return km;}public void setKm(String km) {this.km = km;}public String getStartTime() {return startTime;}public void setStartTime(String startTime) {this.startTime = startTime;}public String getTrainStation() {return trainStation;}public void setTrainStation(String trainStation) {this.trainStation = trainStation;} }

　然后处理信息，

public class TrainInfo {public ArrayList getInfo(String traincode) {ArrayList trainList = null;try {TrainTimeWebServiceLocator service = new TrainTimeWebServiceLocator();TrainTimeWebServiceSoap client = service.getTrainTimeWebServiceSoap();GetDetailInfoByTrainCodeResponseGetDetailInfoByTrainCodeResult traininfo =  client.getDetailInfoByTrainCode(traincode, "");MessageElement[] traElt = traininfo.get_any();List trainElementHead = traElt[0].getChildren();//消息头,DataSet对象            List trainElementBody = traElt[1].getChildren();//消息体信息,DataSet对象          if (trainElementBody.size() <= 0){                //无返回记录，则无输出                return null;        }                String nn = trainElementBody.get(0).toString();//消息体的字符串形式                saveXMLString(nn,"train.xml");            trainList = loadXML("train.xml");            /*for(Iterator iter=trainList.iterator(); iter.hasNext();) {            Train train = (Train)iter.next();            System.out.println(train.getArriveTime());            }*/            } catch(Exception e) {e.printStackTrace();}return trainList;}public static void saveXMLString(String XMLString, String fileName) throws IOException {    File file = new File(fileName);    if (file.exists()) {        file.delete();    }    file.createNewFile();    if (file.canWrite()) {        FileWriter fileOut = new FileWriter(file);        fileOut.write(XMLString);        fileOut.close();    }    } public static ArrayList loadXML(String path) throws Exception { //Train train = null; ArrayList<Train> trainList = null; FileInputStream fi = null; try { fi = new FileInputStream(path); trainList = new ArrayList<Train>(); SAXBuilder sb = new SAXBuilder();     Document doc = sb.build(fi);     Element root = doc.getRootElement(); // 得到根元素     List focs = root.getChildren(); Element foc = null; Train train = null;  for(int i=0; i<focs.size(); i++) { train = new Train(); foc = (Element) focs.get(i); train.setArriveTime(foc.getChild("ArriveTime").getText()); train.setKm(foc.getChild("KM").getText()); train.setStartTime(foc.getChild("StartTime").getText()); train.setTrainStation(foc.getChild("TrainStation").getText());  trainList.add(train); } } catch (Exception e) { e.printStackTrace(); } return trainList; } public static void main(String[] args) { new TrainInfo().getInfo("1132"); }}

到此可将Dataset读取完成，本人测试正常，如有不妥之处，请留言。