Soap WebService +pull解析

调用webservice总结：

  1.加入第三方的jar包 Ksoap2-android-XXX 

  2.访问响应的webservice的网站，查看响应的信息，得到nameSpace，methodName，url，soapAction

  3.如果request信息还有带有SoapHander的。那么就要封装：依据参数封装              

Element[] header = new Element[1];header[0] = new Element().createElement(nameSpace, "SoapHeader"); Element userName = new Element().createElement(nameSpace, "UserID"); userName.addChild(Node.TEXT, UserID);header[0].addChild(Node.ELEMENT, userName);               Element pass = new Element().createElement(nameSpace, "PassWord");pass.addChild(Node.TEXT, PassWord); header[0].addChild(Node.ELEMENT, pass); 

  4.封装request信息的SoapBody            

// 指定WebService的命名空间和调用的方法名SoapObject  soapObject=new SoapObject(nameSpace, methodName);//处理soap12:Body数据部分soapObject.addProperty("loginName",username);soapObject.addProperty("password",password);

             

 5.指定SoapSerializationEnvelope信息              

SoapSerializationEnvelope envelope=new SoapSerializationEnvelope(SoapEnvelope.VER11);//SoapEnvelope.VER11 表示使用的soap协议的版本号 1.1 或者是1.2envelope.headerOut=header;envelope.bodyOut=soapObject;envelope.dotNet = true; //指定webservice的类型的（java，PHP，dotNet）envelope.setOutputSoapObject(soapObject); 

  6.指定HttpTransportSE

HttpTransportSE ht = new HttpTransportSE(url);

 7.访问webservice服务器

ht.call(soapAction, envelope);

  8.两种方式获取服务器返回的信息

envelope.getResponse();                                       

envelope.bodyIn;

                                两者的区别：

                                Webservice开发时，我们接收webservice返回值可以使用

SoapObject soapObject = (SoapObject) envelope.getResponse();

                                但如果接受的webservice服务器端返回值是String类型的数值的话，这种方法往往会产生 java.lang.ClassCastException:                           

                                org.ksoap2.serialization.SoapPrimitive这样的错误。                                                       

                                如果服务器返回值的类型是string  或者 byte[] 的时候，可以使用

SoapObject result = (SoapObject)envelope.bodyIn;

Object object =envelope.getResponse();

                                但如果使用 base64进行解码和编码的时候只能使用前者，它可以完整的将byte[]进行解码和编码。  

SoapObject result=(SoapObject) envelope.bodyIn;String str=result.getProperty(0).toString();byte[] ops = Base64.decode(str);

 

                         后者编程如下：

Object  result=  (Object) reqVo.envelope.getResponse();String str=result.toString();

  9.解析字符串str获取客户端想要的信息

                        我用的是pull解析器。

public static String[] parse(String result)// 把获取的result放进来解析throws XmlPullParserException, IOException {String[] strings = null;String status = null;String msg = null;// 获得PULL解析器工厂XmlPullParserFactory factory = XmlPullParserFactory.newInstance();// 指定由XmlPullParserFactory对象产生的解析器能提供对XML命名空间的支持factory.setNamespaceAware(true);// 获得XmlPullParser的实例XmlPullParser xpp = factory.newPullParser();// 设置需要解析的XML数据xpp.setInput(new StringReader(result));// 获得事件类型，开始解析int eventType = xpp.getEventType();// 若解析到末尾while (eventType != XmlPullParser.END_DOCUMENT) {if (eventType == XmlPullParser.START_DOCUMENT) {// 文档开始System.out.println("Start document");}if (eventType == XmlPullParser.START_TAG) {// 标签开始if (xpp.getName().equals("Response")) {strings = new String[2];}if (xpp.getName().equals("status")) {// 节点名称status = xpp.nextText();System.out.println("status==" + status);}if (xpp.getName().equals("msg")) {// 节点名称msg = xpp.nextText();System.out.println("msg==" + msg);}}if (eventType == XmlPullParser.END_TAG) {// 标签结束if (xpp.getName().equals("Response")) {strings[0] = status;strings[1] = msg;}}eventType = xpp.next();// 下一标签}System.out.println("End document");return strings;}