Consume webservice service in SPRING-WS using wsdl

Question

I have WSDL with me .eg: /sample/hello?wsdl . I want to invoke the service the webservice by configuring in Spring-ws. I passed this wsdl as parameter to tags in springconfig.xml. Can anyone please tell me how to consume this webservice in Spring-ws.

Answer 1

1. Set up project dependencies

add the following dependencies to the pom file:

<dependency>
    <groupId>org.springframework.ws</groupId>
    <artifactId>spring-ws-core</artifactId>
    <version>2.1.3.RELEASE</version>
</dependency>
<dependency>
    <groupId>org.apache.httpcomponents</groupId>
    <artifactId>httpclient</artifactId>
    <version>4.2.5</version>
</dependency>

2. Set up web service application context

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="
        http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-3.1.xsd">

    <bean id="messageFactory" class="org.springframework.ws.soap.saaj.SaajSoapMessageFactory" />

    <bean id="marshaller" class="org.springframework.oxm.jaxb.Jaxb2Marshaller">
        <property name="contextPath" value="com.yourcomany.model" />
    </bean>

    <bean id="webServiceTemplate" class="org.springframework.ws.client.core.WebServiceTemplate">
        <constructor-arg ref="messageFactory" />
        <property name="marshaller" ref="marshaller"></property>
        <property name="unmarshaller" ref="marshaller"></property>
        <property name="messageSender">
            <bean
                class="org.springframework.ws.transport.http.HttpComponentsMessageSender" />
        </property>
        <property name="defaultUri"
            value="http://<hostname>:<portnumber>/sample/hello" />
    </bean>

</beans>

3. Set up model classes which would map to your SOAP request/response objects

For example, if your SOAP request XML looked like

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xxx="http://yourcomapny.com">
   <soapenv:Header/>
   <soapenv:Body>
      <xxx:InputParameters>
         <xxx:paramONE>1</xxx:paramONE>
      </xxx:InputParameters>
   </soapenv:Body>
</soapenv:Envelope>

and your SOAP response XML looked like:

<env:Envelope xmlns:env="http://schemas.xmlsoap.org/soap/envelope/">
   <env:Header>
      ...
   </env:Header>
   <env:Body>
      <xxx:OutputParameters xmlns:xxx="http://yourcompany.com">
         <xxx:paramONE>0</xxx:paramONE>
      </xxx:OutputParameters>
   </env:Body>
</env:Envelope>

the corresponding classes (under the package you specified in the marshaller bean: com.yourcompany.model) would be respectively:

@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "", propOrder = { "paramONE" })
@XmlRootElement(name = "InputParameters", namespace = "http://yourcompany.com")
public class InputParameters {

    @XmlElement(required = true, namespace = "http://yourcompany.com")
    private String paramONE;

    public String getParamONE() {
        return paramONE;
    }

    public void setParamONE(String paramONE) {
        this.paramONE = paramONE;
    }

}

and

@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "", propOrder = { "paramONE" })
@XmlRootElement(name = "OutputParameters", namespace = "http://yourcompany.com")
public class OutputParameters {

    @XmlElement(required = true, namespace = "http://yourcompany.com")
    private BigDecimal paramONE;

    public BigDecimal getParamONE() {
        return this.paramONE;
    }

    public void setParamONE(BigDecimal paramONE) {
        this.paramONE= paramONE;
    }

}

4. Add an Object Factory (under package com.yourcompany.model) to create request/response objects

@XmlRegistry
public class ObjectFactory {

    public ObjectFactory() {
    }

    public InputParameters createYourRequest() {
        return new InputParameters();
    }

    public OutputParameters createYourResponse() {
        return new OutputParameters();
    }

}

5. Create a client to consume the service

Interface:

public interface YourService {

    BigDecimal getValue(String paramOne);

}

Implementation

@Component("yourServiceClient")
public class YourServiceClient implements YourService {

    private static final ObjectFactory WS_CLIENT_FACTORY = new ObjectFactory();

    private WebServiceTemplate webServiceTemplate;

    @Autowired
    public YourServiceClient(WebServiceTemplate webServiceTemplate) {
        this.webServiceTemplate = webServiceTemplate;
    }

    @Override
    public BigDecimal getValue(String paramOne) {
        InputParameters request = WS_CLIENT_FACTORY
                .createYourRequest();
        request.setParamONE(paramOne);

        OutputParameters response = (OutputParameters) webServiceTemplate
                .marshalSendAndReceive(request);

        return response.getParamONE();
    }

}