在Android应用程序中使用kso​​ap从asp.net webservice消费对象列表

Question

我陷入了asituation，我必须使用一个asp.net webservice，它返回我的Android应用程序中的对象列表，有问题的webservice返回programmedflights列表，其中包含flightCode,flightDate,flightType等参数等等，下面是我在浏览器中调用它时从网络服务获得的xml结果

我希望我的应用能够如上所述阅读programmedflights并将它们设置为新的programmedflights对象，因为我的Android应用程序中的类是我的programmedflights类Android应用程序

public class programmed_flights {
    private int    id;
    private String company;
    private String flight_date;
    private String flight_num;
    private String air_port;
    private String flight_type;
    private String status;

    public programmed_flights(){

    }

    public programmed_flights(String company, String flight_date, String flight_num, String air_port,String flight_type,String status ) {
        this.company = company;
        this.flight_date = flight_date;
        this.flight_num = flight_num;
        this.air_port = air_port;
        this.flight_type = flight_type;
        this.status = status;
    }

    public String flightToString() {
        return  company+" "+flight_date+" "+flight_num+" "+air_port+" "+flight_type+" "+status;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getCompany() {
        return company;
    }

    public void setCompany(String company) {
        this.company = company;
    }

    public String getFlight_date() {
        return flight_date;
    }

    public void setFlight_date(String flight_date) {
        this.flight_date = flight_date;
    }

    public String getFlight_num() {
        return flight_num;
    }

    public void setFlight_num(String flight_num) {
        this.flight_num = flight_num;
    }

    public String getAir_port() {
        return air_port;
    }

    public void setAir_port(String air_port) {
        this.air_port = air_port;
    }

    public String getFlight_type() {
        return flight_type;
    }

    public void setFlight_type(String flight_type) {
        this.flight_type = flight_type;
    }

    public String getStatus() {
        return status;
    }

    public void setStatus(String status) {
        this.status = status;
    }


}

这是我第一次在android中使用kso​​ap我完全没有任何可能的解决方案，我在网上检查了各种关于如何完成这项工作的帖子，但没有一个是我的预期，任何帮助都将大大贬值

这也是我用来使用服务的代码

public String getSoap(long option, String dt){

        SoapObject request = new SoapObject(WSDL_TARGET_NAMESPACE,OPERATION_NAME);
        PropertyInfo opt=new PropertyInfo();
        opt.setName("option");
        opt.setValue(option);
        opt.setType(long.class);
        request.addProperty(opt);

        PropertyInfo date=new PropertyInfo();
        date.setName("dt");
        date.setValue(dt);
        date.setType(String.class);
        request.addProperty(date);

        SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
        envelope.dotNet = true;
        envelope.setOutputSoapObject(request);
        HttpTransportSE httpTransport = new HttpTransportSE(SOAP_ADDRESS);
        Object response=null;

        try
        {
            httpTransport.call(SOAP_ACTION, envelope);
            response = envelope.getResponse();
        }
        catch (Exception exception)
        {
            exception.printStackTrace();
            response=exception.toString();
        }
        return response.toString();
        }
    } 

Answer 1

经过一周的麻烦，我终于找到了正确的方法，经过对该主题的大量研究后我发现大多数关于从android应用程序中的dotnet web服务消费对象列表的帖子全都离开了这样做的一个重要方面主要是因为帖子没有更新 现在回到我的问题

从android调用web服务意味着你正在启动一个可能需要时间来提供结果的任务，因为应用程序必须与服务器通信然后收到响应，要正确地执行此操作，必须实现线程，这意味着要执行当应用程序正常运行等待响应在Android中执行此任务时，您需要使用AsyncTask或Service类，但对于我们的网络服务，我将在AsyncTask

所以为了正确解决上面的问题，我们必须首先创建一个实现programmedFlights的{​​{1}}类，因为我们的Web服务返回了我们需要发送该序列化类的KvmSerialisation个对象的列表在我们的programmedFlights中帮助服务器识别我们的对象属性的正确映射，以便收到我们想要的正确响应，了解有关ksoap2的更多信息SoapEnvelope访问此link

下面是我们的KvmSerialisation类实施programmedFlights

KvmSerialasation

现在创建序列化类后，这是我们的主要活动，我们将使用私有package com.YouPakageName.serialisation; //importing needed classes import org.ksoap2.serialization.KvmSerializable; import org.ksoap2.serialization.PropertyInfo; import java.util.Hashtable; public class programmedFlights implements KvmSerializable { //setting properties public int id; public String company; public String flight_date; public String flight_num; public String flight_type; public String air_port; public String status; //default constructor public programmedFlights(){ } //constructor with parameters public programmedFlights(int id,String company,String flight_date,String flight_num,String flight_type,String air_port,String status){ this.id = id; this.company = company; this.flight_date = flight_date; this.flight_num = flight_num; this.flight_type = flight_type; this.air_port = air_port; this.status = status; } //here we override our kvmSerialisation methods an adapt to our class //needed method @Override public Object getProperty(int index) { switch(index) { case 0: return id; case 1: return company; case 2: return flight_date; case 3: return flight_num; case 4: return flight_type; case 5: return air_port; case 6: return status; } return null; } //needed method //here just return the sum of properties in the class @Override public int getPropertyCount() { return 7; } //needed method @Override public void setProperty(int index, Object value) { switch(index) { case 0: id = Integer.parseInt(value.toString()); break; case 1: company = value.toString(); break; case 2: flight_date = value.toString(); break; case 3: flight_num = value.toString(); break; case 4: flight_type = value.toString(); break; case 5: air_port = value.toString(); break; case 6: status = value.toString(); break; default: break; } } //needed method @Override public void getPropertyInfo(int index, Hashtable properties, PropertyInfo info) { switch(index) { case 0: info.type = PropertyInfo.INTEGER_CLASS; info.name = "id"; break; case 1: info.type = PropertyInfo.STRING_CLASS; info.name = "company"; break; case 2: info.type = PropertyInfo.STRING_CLASS; info.name = "flight_date"; break; case 3: info.type = PropertyInfo.STRING_CLASS; info.name = "flight_num"; break; case 4: info.type = PropertyInfo.STRING_CLASS; info.name = "flight_type"; break; case 5: info.type = PropertyInfo.STRING_CLASS; info.name = "air_port"; break; case 6: info.type = PropertyInfo.STRING_CLASS; info.name = "status"; break; default:break; } } //just a method to present our class in String form //not actually needed @Override public String toString() { return "flightPrograms{" + "id=" + id + ", company='" + company + '\'' + ", flight_date='" + flight_date + '\'' + ", flight_num='" + flight_num + '\'' + ", flight_type='" + flight_type + '\'' + ", air_port='" + air_port + '\'' + ", status='" + status + '\'' + '}'; } } 类来调用我们的Web服务并返回我们的对象

对象将在列表中返回，我们将在TextView中显示其中一个具有列表长度的对象

AsyncTask

注意：永远不要直接从//importing needed classes import org.ksoap2.SoapEnvelope; import org.ksoap2.SoapFault; import org.ksoap2.serialization.PropertyInfo; import org.ksoap2.serialization.SoapObject; import org.ksoap2.serialization.SoapSerializationEnvelope; import org.ksoap2.transport.HttpResponseException; import org.ksoap2.transport.HttpTransportSE; import org.xmlpull.v1.XmlPullParserException; import android.widget.TextView; public class test_db extends FragmentActivity implements AdapterView.OnItemSelectedListener{ TextView tdate = null; //variables needed to call our web service private final String SOAP_ACTION = "http://yourOwnNAMESPACE.org/getTodayFlights"; private final String OPERATION_NAME = "getTodayFlights"; private final String WSDL_TARGET_NAMESPACE = "http://yourOwnNAMESPACE/"; private final String SOAP_ADDRESS = "http://www.yourServiceHost/WebServicePage.asmx"; //holds the recieved list of objects public programmedFlights[] list; //property we send to WebMethod Long getnet = Long.valueOf(1); //method for looping into response to get out objects (deserialisation) public static programmedFlights[] RetrieveFromSoap(SoapObject response) { programmedFlights[] flights = new programmedFlights[response.getPropertyCount()]; for (int i = 0; i < flights.length; i++) { SoapObject obj = (SoapObject)response.getProperty(i); programmedFlights flyer = new programmedFlights(); flyer.id = Integer.parseInt(obj.getProperty(0).toString()); flyer.company = obj.getProperty(1).toString(); flyer.flight_date = obj.getProperty(2).toString(); flyer.flight_num = obj.getProperty(3).toString(); flyer.flight_type = obj.getProperty(4).toString(); flyer.air_port = obj.getProperty(5).toString(); flyer.status = obj.getProperty(6).toString(); flights[i] = flyer; } return flights; } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_test_db); //setting our TextView tdate = findViewById(R.id.textView6); //calling the AsyncTask to execute our Wedservice in doinBackground final AsyncTask<Object, Void, Object> execute = new mycall().execute((Object) null); } private class mycall extends AsyncTask<Object,Void,Object>{ @Override protected Object doInBackground(Object... objects) { SoapObject request = new SoapObject(WSDL_TARGET_NAMESPACE, OPERATION_NAME); //setting request properties PropertyInfo opt = new PropertyInfo(); opt.setName("option"); opt.setValue(getnet); opt.setType(long.class); request.addProperty(opt); //creating our envelope SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11); envelope.dotNet = true; envelope.setOutputSoapObject(request); //this part is important for getting our list of objects, never forget to add //it to the envelope ****** envelope.addMapping(WSDL_TARGET_NAMESPACE, "programmedFlights", new programmedFlights().getClass()); Log.e("request",request.toString()); HttpTransportSE httpTransport = new HttpTransportSE(SOAP_ADDRESS,100000); httpTransport.debug = true; try { //calling WebMethod httpTransport.call(SOAP_ACTION, envelope); //getting WebMethod response SoapObject response = (SoapObject) envelope.getResponse(); //Getting our objects from soap response list = RetrieveFromSoap(response); //catching errors } catch (HttpResponseException e) { e.printStackTrace(); errors = errors+"http_response_error "+e.toString(); return errors; } catch (SoapFault soapFault) { soapFault.printStackTrace(); errors = errors+"soapFault_error "+soapFault.toString(); return errors; } catch (XmlPullParserException e) { e.printStackTrace(); errors = errors+"Xml_pull_error "+e.toString(); return errors; } catch (IOException e) { e.printStackTrace(); errors = errors+"I/O_error "+e.toString(); return errors; } return list; } @Override protected void onPostExecute(Object list) { if(list.getClass() == programmedFlights[].class ){ programmedFlights[] data = (programmedFlights[]) list; tdate.setText(data.length+" "+data[0].toString()); tdate.append(data[1].toString()); }else if(list.getClass() == String.class){ String error = (String) list; tdate.setText(error); } super.onPostExecute(list); } } } 获取WebMethod响应，这将导致空响应，并且java.io.IOException始终使用doinBackground 像我上面用这行一样得到你的答案

onPostExecute

在final AsyncTask<Object, Void, Object> execute = new mycall().execute((Object) null); 方法中，您告诉您的活动在onPostExecute后台执行后如何处理您的回复并将回复返回给doinBackground

我希望这会帮助很多人在Android上遇到这种与webservices有关的问题， 发表评论，如果你不明白我会回来简要解释一下