如何使用 WebServiceTemplate 发送 SOAP 请求？

Question

我正在尝试向 SOAP 网络服务发送请求。我阅读了this tutorial 并准备了以下代码。但是，我将向多个 SOAP Web 服务发送不同的请求，而本教程只关注一个请求。如何使用WebserviceTemplate 发送 SOAP 请求？

WebServiceTemplate

    SoapMessage soapMsg = new SoapMessage();
    soapMsg.setUsername("Requester");
    soapMsg.setPassword("Pass");
    soapMsg.setLanguageCode("EN");
    Request request = new Request();
    request.setDeparture("FDH");
    request.setDestination("HAM");
    Date date = new Date();
    SimpleDateFormat frm2 = new SimpleDateFormat("yyyy-MM-dd");
    request.setDepartureDate(frm2.parse(frm2.format(date)));
    request.setNumADT(1);
    request.setNumCHD(0);
    request.setNumInf(0);
    request.setCurrencyCode("EUR");
    request.setWaitForResult(true);
    request.setNearByDepartures(true);
    request.setNearByDestinations(true);
    request.setRronly(false);
    request.setMetaSearch(false);
    soapMsg.setRequest(request);
    WebServiceTemplate webServiceTemplate = new WebServiceTemplate().  //how to create object and send request!
    Object response = webServiceTemplate.marshalSendAndReceive(
            "https://aaa5.elsyarres.net", soapMsg);
    Response msg = (Response) response;
    System.err.println("size of results of wogolo:"
            + msg.getFlights().getFlight().size());

Answer 1

你可以使用下面的代码，你不需要在xml文件中定义任何东西。

  try {
            SaajSoapMessageFactory messageFactory = new SaajSoapMessageFactory(
                    MessageFactory.newInstance());
            messageFactory.afterPropertiesSet();

            WebServiceTemplate webServiceTemplate = new WebServiceTemplate(
                    messageFactory);
            Jaxb2Marshaller marshaller = new Jaxb2Marshaller();

            marshaller.setContextPath("PACKAGE");
            marshaller.afterPropertiesSet();

            webServiceTemplate.setMarshaller(marshaller);
            webServiceTemplate.afterPropertiesSet();

            Response response = (Response) webServiceTemplate
                    .marshalSendAndReceive(
                            "address",
                            searchFlights);

            Response msg = (Response) response;
        } catch (Exception s) {
            s.printStackTrace();
        }

Answer 2

要将不同的 SOAP 请求发送到不同的 SOAP 服务，您只需让 WebServiceTemplate 了解它必须处理的所有请求和响应。

为每个请求和响应创建一个 Java 类，如下所示：

package models;
import javax.xml.bind.annotation.XmlRootElement;
import java.io.Serializable;

@XmlRootElement
public class FlyRequest implements Serializable {

    private boolean nearByDeparture;

    public FlyRequest() {}

    public boolean isNearByDeparture() {
        return nearByDeparture;
    }

    public void setNearByDeparture(boolean nearByDeparture) {
        this.nearByDeparture = nearByDeparture;
    }
}

（@XmlRootElement 是因为我们在下面使用 JAXB 编组器；有关更多信息，请参阅 Jaxb 参考）。

模板的设置是这样完成的：

    SaajSoapMessageFactory messageFactory = new SaajSoapMessageFactory(MessageFactory.newInstance());
    messageFactory.afterPropertiesSet();

    WebServiceTemplate webServiceTemplate = new WebServiceTemplate(messageFactory);
    Jaxb2Marshaller marshaller = new Jaxb2Marshaller();
    marshaller.setContextPath("models");
    marshaller.afterPropertiesSet();

    webServiceTemplate.setMarshaller(marshaller);
    webServiceTemplate.afterPropertiesSet();

“models”是 Request/Responses 类所在包的名称，以便 jaxb 可以找到它们。

然后你只需实例化你想要执行调用的类的请求，像这样：

    // call fly service:
    FlyRequest flyRequest = new FlyRequest();
    flyRequest.setNearByDeparture(false);
    Object flyResponse = webServiceTemplate.marshalSendAndReceive("https://example.net/fly", flyRequest);

    // call purchase service:
    PurchaseRequest purchaseRequest = new PurchaseRequest();
    purchaseRequest.setPrice(100);
    Object purchaseResponse = webServiceTemplate.marshalSendAndReceive("https://example.net/purchase", purchaseRequest);

同样，您可以将响应对象转换为上面定义的 JAXB 类。

Answer 3

这是您应该寻找的示例

Soap 与REST 不同，有很多限制，它遵循一些标准，在您获得网络调用之前必须满足这些标准，

但与 Rest 不同的是，在 Soap 中，如果您有 WSDL URL，您可以获得调用 Soap 调用所需的所有信息

private final String NAMESPACE = "http://www.w3schools.com/webservices/";
private final String URL = "http://www.w3schools.com/webservices/tempconvert.asmx?WSDL";
private final String SOAP_ACTION = "http://www.w3schools.com/webservices/CelsiusToFahrenheit";
private final String METHOD_NAME = "CelsiusToFahrenheit";

这段代码是用Android 编写的，所以你可以忽略其中的一部分，但我仍然保留它的答案，以便来自 android 背景的人可以很好地利用它

在浏览器中打开 [WSDL][1] 并检查对调用服务器上的远程方法很重要的事情。

1 您将看到一个属性targetNamespace，其值为Namespace，在这种情况下您将使用Namespace 是http://www.w3schools.com/webservices/

2 现在你需要方法的名称这个WSDL有四个方法每个都是int属性s:element，值是方法的名称在这种情况下四个方法是FahrenheitToCelsius，FahrenheitToCelsiusResponse，CelsiusToFahrenheit , CelsiusToFahrenheitResponse

3 现在你必须把SOAP Action 也就是NAMESPACE+METHOD 但 WSDL 也提供了相关信息，查找标签 soap:operation，它的 soapAction 属性具有 Soap 操作，因为在这种情况下我们要调用的值是 http://www.w3schools.com/webservices/CelsiusToFahrenheit

private class MyTask extends AsyncTask<Void, Void, String> {
    @Override
    protected void onPreExecute() {
        super.onPreExecute();
        progressDialog.show();
    }

    @Override
    protected String doInBackground(Void... params) {
        try {
            SoapObject soapObject = new SoapObject(NAMESPACE, METHOD_NAME);

            soapObject.addProperty("Celsius","12");


            SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
            envelope.dotNet = true;
            envelope.setOutputSoapObject(soapObject);
            HttpTransportSE httpTransportSE = new HttpTransportSE(URL);

            httpTransportSE.call(SOAP_ACTION, envelope);
            SoapPrimitive soapPrimitive = (SoapPrimitive)envelope.getResponse();
            Log.d("TAG", "doInBackground: "+soapPrimitive.toString());

            return soapObject.toString();

        } catch (Exception e) {
            e.printStackTrace();
        }

        return null;
    }

    @Override
    protected void onPostExecute(String aVoid) {
        super.onPostExecute(aVoid);
        progressDialog.dismiss();
        textView.setText(""+aVoid);
    }
}

Answer 4

假设您的 SoapMessage 是可编组的

要将相同的消息发送到多个端点，您只需要循环发送代码和请求处理程序。

类似这样的：

{
    String endpoint = "https://aaa5.elsyarres.net"
    WebServiceTemplate webServiceTemplate = new WebServiceTemplate().
    webServiceTemplate.setDefaultUri(endpoint);
    Object response = webServiceTemplate.marshalSendAndReceive(soapMsg);
    // handle you are response as you are currently doing.
    // Loop changing the endpoint as you need.
}

此代码使用 Spring WebServiceTemplate

Answer 5

如果您必须发送带有身份验证的soap标头（提供由wsimport创建的身份验证对象）并且还需要设置soapaction，我尝试了很多选项，最后一个对我有用。

public Response callWebService(String url, Object request)

{
    Response res = null;
    log.info("The request object is " + request.toString());

    try {
        
        

        res = (Response) getWebServiceTemplate().marshalSendAndReceive(url, request,new WebServiceMessageCallback() {
                 @Override
                  public void doWithMessage(WebServiceMessage message) {
                    try {
                      // get the header from the SOAP message
                      SoapHeader soapHeader = ((SoapMessage) message).getSoapHeader();

                      // create the header element
                      ObjectFactory factory = new ObjectFactory();
                      Authentication auth =
                          factory.createAuthentication();
                      auth.setUser("****");
                      auth.setPassword("******");
                     ((SoapMessage) message).setSoapAction(
                                "soapAction");

                      JAXBElement<Authentication> headers =
                          factory.createAuthentication(auth);

                      // create a marshaller
                      JAXBContext context = JAXBContext.newInstance(Authentication.class);
                      Marshaller marshaller = context.createMarshaller();

                      // marshal the headers into the specified result
                      marshaller.marshal(headers, soapHeader.getResult());
                      
                    } catch (Exception e) {
                      log.error("error during marshalling of the SOAP headers", e);
                    }
                  }
                });

        
    } catch (Exception e) {
        e.printStackTrace();
    }
    return res;

}