Spring Boot呼び出しSOAP Webサービス

Spring Bootプロジェクトでは、残されたSOAP Webサービスを呼び出す方法が簡単で、spring-boot-starter-web-servicesを導入するだけです.

    org.springframework.boot
    spring-boot-starter-web-services

WebServiceTemplate
WebServiceTemplateを使用してSOAP Serviceを呼び出します.WebServiceTemplateは、sendSourceAndReceive、marshalSendAndReceive、sendAndReceiveの3つの呼び出し方法を提供します.sendSourceAndReceiveメソッドはXMLメッセージを直接送信および受信する.marshalSendAndReceiveメソッドは、結果を送信、受信するオブジェクトであり、構成されたMarshallerとUnmarshallerによって自動的に変換されます.sendAndReceiveは、より下位レベルの操作をサポートします.

package org.iata.caims.service.ws;

import org.springframework.boot.webservices.client.WebServiceTemplateBuilder;
import org.springframework.stereotype.Service;
import org.springframework.ws.client.core.WebServiceTemplate;

import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;
import java.io.StringReader;

@Service
public class MyService {
    private static final String DEFAULT_URI = "http://localhost:8080/HelloService";
    private static final String MESSAGE = "" +
            "
" +
            "   COCO
" +
            "";

    private final WebServiceTemplate webServiceTemplate;

    public MyService(WebServiceTemplateBuilder webServiceTemplateBuilder) {
        this.webServiceTemplate = webServiceTemplateBuilder.setDefaultUri(DEFAULT_URI).build();
    }

    public void sendSourceAndReceive() {
        StreamSource source = new StreamSource(new StringReader(MESSAGE));
        StreamResult result = new StreamResult(System.out);
        webServiceTemplate.sendSourceAndReceiveToResult(source, result);
    }

    public Object marshalSendAndReceive(String uri, Object requestPayload) {
        return this.webServiceTemplate.marshalSendAndReceive(uri, requestPayload);
    }
}

marshalSendAndReceiveはよく使われる方法です.wsdlファイルを読むことで、Webサービスでサポートされている方法とパラメータを知ることができます.また、SoapUIツールを使用してrequest、response XMLを生成し、SOAP Domainオブジェクトを手動で作成することもできます.より簡単な方法はmaven-jaxb 2-pluginプラグインを使用して自動的に生成することです.
maven-jaxb2-plugin

    org.jvnet.jaxb2.maven2
    maven-jaxb2-plugin
    0.14.0
    
        
            
                generate
            
        
    
    
        org.itrunner.ws
        ${project.basedir}/src/main/java
        ${project.basedir}/src/main/resources/wsdl
        
            *.wsdl
        
    

以上のように構成すると、wsdlファイルはresources/wsdlフォルダに格納され、mavenコンパイル時に指定パッケージでpackage-infoを含むすべてのWebサービスメソッドに関連するstubクラスが生成する.JAva、ObjectFactory、request、response、XML注記が構成されています.package-info.java

@javax.xml.bind.annotation.XmlSchema(namespace = "http://webservice.itrunner.org", elementFormDefault = javax.xml.bind.annotation.XmlNsForm.QUALIFIED)
package org.iata.caims.service.test;

ObjectFactory

import javax.xml.bind.annotation.XmlRegistry;

@XmlRegistry
public class ObjectFactory {

    /**
     * Create a new ObjectFactory that can be used to create new instances of schema derived classes for package: org.itrunner.ws
     */
    public ObjectFactory() {
    }

    /**
     * Create an instance of {@link SayHello }
     */
    public SayHello createSayHello() {
        return new SayHello();
    }

    /**
     * Create an instance of {@link SayHelloResponse }
     */
    public SayHelloResponse createSayHelloResponse() {
        return new SayHelloResponse();
    }
}

RequestRequestクラス名はWebサービスメソッド名、属性はWebサービスパラメータに対応します.

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlType;

@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "", propOrder = {
        "in0"
})
@XmlRootElement(name = "sayHello")
public class SayHello {

    @XmlElement(required = true, nillable = true)
    protected String in0;

    /**
     * Gets the value of the in0 property.
     *
     * @return possible object is {@link String }
     */
    public String getIn0() {
        return in0;
    }

    /**
     * Sets the value of the in0 property.
     *
     * @param value allowed object is {@link String }
     */
    public void setIn0(String value) {
        this.in0 = value;
    }

}

Response

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlType;

@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "", propOrder = {
        "out"
})
@XmlRootElement(name = "sayHelloResponse")
public class SayHelloResponse {

    @XmlElement(required = true, nillable = true)
    protected String out;

    /**
     * Gets the value of the out property.
     *
     * @return possible object is {@link String }
     */
    public String getOut() {
        return out;
    }

    /**
     * Sets the value of the out property.
     *
     * @param value allowed object is {@link String }
     */
    public void setOut(String value) {
        this.out = value;
    }
}

牛刀小試
WebServiceTemplateBuildeとJaxb 2 marshallerの構成:

import org.springframework.boot.webservices.client.HttpWebServiceMessageSenderBuilder;
import org.springframework.boot.webservices.client.WebServiceTemplateBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.oxm.jaxb.Jaxb2Marshaller;
import org.springframework.ws.client.core.WebServiceTemplate;

import static java.time.Duration.ofSeconds;

@Configuration
public class Config {
    @Bean
    public WebServiceTemplate webServiceTemplate(WebServiceTemplateBuilder builder) {
        return builder.messageSenders(new HttpWebServiceMessageSenderBuilder().setConnectTimeout(ofSeconds(60)).setReadTimeout(ofSeconds(60)).build()).build();
    }

    @Bean
    public Jaxb2Marshaller jaxb2Marshaller() {
        Jaxb2Marshaller marshaller = new Jaxb2Marshaller();
        marshaller.setContextPath("org.itrunner.ws");
        return marshaller;
    }
}

Webサービスの呼び出し:

import org.springframework.boot.webservices.client.WebServiceTemplateBuilder;
import org.springframework.oxm.jaxb.Jaxb2Marshaller;
import org.springframework.stereotype.Service;
import org.springframework.ws.client.core.WebServiceTemplate;

@Service
public class HelloService {
    private static final String DEFAULT_URI = "http://localhost:8080/HelloService";

    private final WebServiceTemplate webServiceTemplate;

    public HelloService(WebServiceTemplateBuilder webServiceTemplateBuilder, Jaxb2Marshaller jaxb2Marshaller) {
        this.webServiceTemplate = webServiceTemplateBuilder.setDefaultUri(DEFAULT_URI)
                .setMarshaller(jaxb2Marshaller).setUnmarshaller(jaxb2Marshaller).build();
    }

    public SayHelloResponse sayHello(SayHello request) {
        return (SayHelloResponse) this.webServiceTemplate.marshalSendAndReceive(request);
    }
}

リファレンスドキュメント
Spring Boot Reference GuideSpring Boot SOAP Client – WebServiceTemplate Example