Ошибка: клиент получил ошибку SOAP от сервера: java.lang.Исключение NullPointerException

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Ошибка: клиент получил ошибку SOAP от сервера: java.lang.Исключение NullPointerException

Post author:admin
Запись опубликована:28 февраля, 2023
Post category:Вопросы по программированию

#java #web-services #soap #nullpointerexception #jax-ws

#java #веб-службы #soap #исключение nullpointerexception #jax-ws

Вопрос:

Я пишу веб-службу JAX-WS. Когда я запускаю свой клиентский код удаленного веб-сервиса, я получаю следующую ошибку:

Исключение в потоке «main» com.sun.xml.internal.ws.fault.Исключение ServerSOAPFaultException: клиент получил ошибку SOAP от сервера: java.lang.NullPointerException Пожалуйста, ознакомьтесь с журналом сервера, чтобы найти более подробную информацию о точной причине сбоя. в com.sun.xml.internal.ws.ошибка.SOAP11Fault.getProtocolException(SOAP11Fault.java:178) по адресу com.sun.xml.internal.ws.fault.SOAPFaultBuilder.createException(SOAPFaultBuilder.java: 116) в com.sun.xml.internal.ws.client.sei.StubHandler.readResponse(StubHandler.java:238) в com.sun.xml.internal.ws.db.DatabindingImpl.deserializeResponse(DatabindingImpl.java:189 ) в com.sun.xml.internal.ws.db.DatabindingImpl.deserializeResponse(DatabindingImpl.java:276) в com.sun.xml.internal.ws.client.sei.SyncMethod Handler.invoke(SyncMethod handler.java:104) в com.sun.xml.internal.ws.client.sei.SyncMethod handler.invoke(SyncMethod handler.java:77) в com.sun.xml.internal.ws.client.sei.SEIStub.invoke(SEIStub.java:147) в com.sun.proxy.$Proxy40.getShoes(неизвестный источник) в org.example.shoesshop.client.ShoesServiceClient.main(ShoesServiceClient.java:32)

Вот код удаленного клиента веб-службы:

 public class ShoesServiceClient {

    public static void main(String[] args) throws MalformedURLException, ShoesNotFound_Exception{
        System.setProperty("com.sun.xml.ws.transport.http.client.HttpTransportPipe.dump", "true");
        System.setProperty("com.sun.xml.internal.ws.transport.http.client.HttpTransportPipe.dump", "true");
        
        URL wsdl = new URL("file:///"   new File("").getAbsolutePath()   "/shoesservice.wsdl");
        
        ShoesServiceImpl service = new ShoesService(wsdl).getShoesPort();
        service.getShoes(1); // ShoesServiceClient.java:32 is here
    }
}

Также совместно используется код издателя веб-службы (адрес localhost: 8080 / shoesservice)

 public class ShoesServicePublisher {
    public static void main(String[] args) {
        final String addr = "http://localhost:8080/shoesservice";
        final Object impl = new ShoesServiceImpl();
        Endpoint shoesPub = Endpoint.publish(addr, impl);
        Scanner sc = new Scanner(System.in);
        sc.nextLine();
        sc.close();
        shoesPub.stop();
    }
}

Вот изображение конфигурации монитора TCP / IP
Конфигурация монитора TCP / IP

Wsdl-файл имеет следующую структуру (он хранится в папке моего проекта)

 <?xml version="1.0" encoding="UTF-8"?><!-- Published by JAX-WS RI (http://jax-ws.java.net). RI's version is JAX-WS RI 2.2.9-b130926.1035 svn-revision#5f6196f2b90e9460065a4c2f4e30e065b245e51e. --><!-- Generated by JAX-WS RI (http://jax-ws.java.net). RI's version is JAX-WS RI 2.2.9-b130926.1035 svn-revision#5f6196f2b90e9460065a4c2f4e30e065b245e51e. --><definitions xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" xmlns:wsp="http://www.w3.org/ns/ws-policy" xmlns:wsp1_2="http://schemas.xmlsoap.org/ws/2004/09/policy" xmlns:wsam="http://www.w3.org/2007/05/addressing/metadata" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:tns="http://shoeshop.example/jaxws/shoes" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://schemas.xmlsoap.org/wsdl/" targetNamespace="http://shoeshop.example/jaxws/shoes" name="Shoes">
<types>
<xsd:schema>
<xsd:import namespace="http://www.example.org/ShoesShop" schemaLocation="http://localhost:8080/shoesservice?xsd=1"></xsd:import>
</xsd:schema>
<xsd:schema>
<xsd:import namespace="http://shoeshop.example/jaxws/shoes" schemaLocation="http://localhost:8080/shoesservice?xsd=2"></xsd:import>
</xsd:schema>
</types>
<message name="getShoes">
<part name="parameters" element="tns:getShoes"></part>
</message>
<message name="getShoesResponse">
<part name="parameters" element="tns:getShoesResponse"></part>
</message>
<message name="ShoesNotFound">
<part name="fault" element="tns:ShoesNotFound"></part>
</message>
<message name="getAllShoes">
<part name="parameters" element="tns:getAllShoes"></part>
</message>
<message name="getAllShoesResponse">
<part name="parameters" element="tns:getAllShoesResponse"></part>
</message>
<message name="updateShoes">
<part name="parameters" element="tns:updateShoes"></part>
</message>
<message name="updateShoesResponse">
<part name="parameters" element="tns:updateShoesResponse"></part>
</message>
<message name="addShoes">
<part name="parameters" element="tns:addShoes"></part>
</message>
<message name="addShoesResponse">
<part name="parameters" element="tns:addShoesResponse"></part>
</message>
<message name="ShoesAlreadyExists">
<part name="fault" element="tns:ShoesAlreadyExists"></part>
</message>
<message name="deleteShoes">
<part name="parameters" element="tns:deleteShoes"></part>
</message>
<message name="deleteShoesResponse">
<part name="parameters" element="tns:deleteShoesResponse"></part>
</message>
<message name="countShoes">
<part name="parameters" element="tns:countShoes"></part>
</message>
<message name="countShoesResponse">
<part name="parameters" element="tns:countShoesResponse"></part>
</message>
<portType name="ShoesServiceImpl">
<operation name="getShoes">
<input wsam:Action="http://shoeshop.example/jaxws/shoes/ShoesServiceImpl/getShoesRequest" message="tns:getShoes"></input>
<output wsam:Action="http://shoeshop.example/jaxws/shoes/ShoesServiceImpl/getShoesResponse" message="tns:getShoesResponse"></output>
<fault message="tns:ShoesNotFound" name="ShoesNotFound" wsam:Action="http://shoeshop.example/jaxws/shoes/ShoesServiceImpl/getShoes/Fault/ShoesNotFound"></fault>
</operation>
<operation name="getAllShoes">
<input wsam:Action="http://shoeshop.example/jaxws/shoes/ShoesServiceImpl/getAllShoesRequest" message="tns:getAllShoes"></input>
<output wsam:Action="http://shoeshop.example/jaxws/shoes/ShoesServiceImpl/getAllShoesResponse" message="tns:getAllShoesResponse"></output>
</operation>
<operation name="updateShoes">
<input wsam:Action="http://shoeshop.example/jaxws/shoes/ShoesServiceImpl/updateShoesRequest" message="tns:updateShoes"></input>
<output wsam:Action="http://shoeshop.example/jaxws/shoes/ShoesServiceImpl/updateShoesResponse" message="tns:updateShoesResponse"></output>
<fault message="tns:ShoesNotFound" name="ShoesNotFound" wsam:Action="http://shoeshop.example/jaxws/shoes/ShoesServiceImpl/updateShoes/Fault/ShoesNotFound"></fault>
</operation>
<operation name="addShoes">
<input wsam:Action="http://shoeshop.example/jaxws/shoes/ShoesServiceImpl/addShoesRequest" message="tns:addShoes"></input>
<output wsam:Action="http://shoeshop.example/jaxws/shoes/ShoesServiceImpl/addShoesResponse" message="tns:addShoesResponse"></output>
<fault message="tns:ShoesAlreadyExists" name="ShoesAlreadyExists" wsam:Action="http://shoeshop.example/jaxws/shoes/ShoesServiceImpl/addShoes/Fault/ShoesAlreadyExists"></fault>
</operation>
<operation name="deleteShoes">
<input wsam:Action="http://shoeshop.example/jaxws/shoes/ShoesServiceImpl/deleteShoesRequest" message="tns:deleteShoes"></input>
<output wsam:Action="http://shoeshop.example/jaxws/shoes/ShoesServiceImpl/deleteShoesResponse" message="tns:deleteShoesResponse"></output>
<fault message="tns:ShoesNotFound" name="ShoesNotFound" wsam:Action="http://shoeshop.example/jaxws/shoes/ShoesServiceImpl/deleteShoes/Fault/ShoesNotFound"></fault>
</operation>
<operation name="countShoes">
<input wsam:Action="http://shoeshop.example/jaxws/shoes/ShoesServiceImpl/countShoesRequest" message="tns:countShoes"></input>
<output wsam:Action="http://shoeshop.example/jaxws/shoes/ShoesServiceImpl/countShoesResponse" message="tns:countShoesResponse"></output>
</operation>
</portType>
<binding name="ShoesPortBinding" type="tns:ShoesServiceImpl">
<soap:binding transport="http://schemas.xmlsoap.org/soap/http" style="document"></soap:binding>
<operation name="getShoes">
<soap:operation soapAction=""></soap:operation>
<input>
<soap:body use="literal"></soap:body>
</input>
<output>
<soap:body use="literal"></soap:body>
</output>
<fault name="ShoesNotFound">
<soap:fault name="ShoesNotFound" use="literal"></soap:fault>
</fault>
</operation>
<operation name="getAllShoes">
<soap:operation soapAction=""></soap:operation>
<input>
<soap:body use="literal"></soap:body>
</input>
<output>
<soap:body use="literal"></soap:body>
</output>
</operation>
<operation name="updateShoes">
<soap:operation soapAction=""></soap:operation>
<input>
<soap:body use="literal"></soap:body>
</input>
<output>
<soap:body use="literal"></soap:body>
</output>
<fault name="ShoesNotFound">
<soap:fault name="ShoesNotFound" use="literal"></soap:fault>
</fault>
</operation>
<operation name="addShoes">
<soap:operation soapAction=""></soap:operation>
<input>
<soap:body use="literal"></soap:body>
</input>
<output>
<soap:body use="literal"></soap:body>
</output>
<fault name="ShoesAlreadyExists">
<soap:fault name="ShoesAlreadyExists" use="literal"></soap:fault>
</fault>
</operation>
<operation name="deleteShoes">
<soap:operation soapAction=""></soap:operation>
<input>
<soap:body use="literal"></soap:body>
</input>
<output>
<soap:body use="literal"></soap:body>
</output>
<fault name="ShoesNotFound">
<soap:fault name="ShoesNotFound" use="literal"></soap:fault>
</fault>
</operation>
<operation name="countShoes">
<soap:operation soapAction=""></soap:operation>
<input>
<soap:body use="literal"></soap:body>
</input>
<output>
<soap:body use="literal"></soap:body>
</output>
</operation>
</binding>
<service name="Shoes">
<port name="ShoesPort" binding="tns:ShoesPortBinding">
<soap:address location="http://localhost:18080/shoesservice"></soap:address>
</port>
</service>
</definitions>

When I launch the TCP/IP Monitor with running Remote Web Service Client code, I get the next messages in XML format:

Request Message

 <?xml version="1.0"  standalone="no"?>
<S:Envelope xmlns:S="http://schemas.xmlsoap.org/soap/envelope/">
<S:Body>
<ns3:getShoes xmlns:ns2="http://www.example.org/ShoesShop" xmlns:ns3="http://shoeshop.example/jaxws/shoes">
<arg0>1</arg0>
</ns3:getShoes>
</S:Body>
</S:Envelope>

Response Message

 <?xml version="1.0"  standalone="no"?>
<S:Envelope xmlns:S="http://schemas.xmlsoap.org/soap/envelope/">
<S:Body>
<S:Fault xmlns:ns4="http://www.w3.org/2003/05/soap-envelope">
<faultcode>S:Server</faultcode>
<faultstring>java.lang.NullPointerException</faultstring>
</S:Fault>
</S:Body>
</S:Envelope>

Вот код класса ShoesService:

 @WebServiceClient(name = "Shoes", targetNamespace = "http://shoeshop.example/jaxws/shoes", wsdlLocation = "http://localhost:8080/shoesservice?wsdl")
public class ShoesService
    extends Service
{

    private final static URL SHOES_WSDL_LOCATION;
    private final static WebServiceException SHOES_EXCEPTION;
    private final static QName SHOES_QNAME = new QName("http://shoeshop.example/jaxws/shoes", "Shoes");

    static {
        URL url = null;
        WebServiceException e = null;
        try {
            url = new URL("http://localhost:8080/shoesservice?wsdl");
        } catch (MalformedURLException ex) {
            e = new WebServiceException(ex);
        }
        SHOES_WSDL_LOCATION = url;
        SHOES_EXCEPTION = e;
    }

    public ShoesService() {
        super(__getWsdlLocation(), SHOES_QNAME);
    }

    public ShoesService(WebServiceFeature... features) {
        super(__getWsdlLocation(), SHOES_QNAME, features);
    }

    public ShoesService(URL wsdlLocation) {
        super(wsdlLocation, SHOES_QNAME);
    }

    public ShoesService(URL wsdlLocation, WebServiceFeature... features) {
        super(wsdlLocation, SHOES_QNAME, features);
    }

    public ShoesService(URL wsdlLocation, QName serviceName) {
        super(wsdlLocation, serviceName);
    }

    public ShoesService(URL wsdlLocation, QName serviceName, WebServiceFeature... features) {
        super(wsdlLocation, serviceName, features);
    }

    @WebEndpoint(name = "ShoesPort")
    public ShoesServiceImpl getShoesPort() {
        return super.getPort(new QName("http://shoeshop.example/jaxws/shoes", "ShoesPort"), ShoesServiceImpl.class);
    }

    @WebEndpoint(name = "ShoesPort")
    public ShoesServiceImpl getShoesPort(WebServiceFeature... features) {
        return super.getPort(new QName("http://shoeshop.example/jaxws/shoes", "ShoesPort"), ShoesServiceImpl.class, features);
    }

    private static URL __getWsdlLocation() {
        if (SHOES_EXCEPTION!= null) {
            throw SHOES_EXCEPTION;
        }
        return SHOES_WSDL_LOCATION;
    }

}

Кроме того, совместное использование кода класса GetShoes:

 @XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "getShoes", propOrder = {
    "arg0"
})
public class GetShoes {
    protected int arg0;
    public int getArg0() {
        return arg0;
    }
    public void setArg0(int value) {
        this.arg0 = value;
    }
}

и получает класс ответа

 @XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "getShoesResponse", propOrder = {
    "_return"
})
public class GetShoesResponse {
    @XmlElement(name = "return")
    protected Shoes _return;
    public Shoes getReturn() {
        return _return;
    }
    public void setReturn(Shoes value) {
        this._return = value;
    }
}

Если вам нужна дополнительная информация, пожалуйста, дайте мне знать

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