I am new to Vaadin, just generated the application in Vaadin web site and built it locally. Then I added Apache CXF SOAP service to it, but I am unable to use the Tomcat that Vaadin is using, but instead I load SOAP in Jetty using:
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-transports-http-jetty</artifactId>
<version>${cxf.version}</version>
<scope>compile</scope>
</dependency>
My Vaadin application is:
@SpringBootApplication
@Theme(value = "iciclient", variant = Lumo.DARK)
@PWA(name = "ICI Client", shortName = "ICI Client", offlineResources = {"images/logo.png"})
public class Application extends SpringBootServletInitializer implements AppShellConfigurator {
public static void main(String[] args) {
LaunchUtil.launchBrowserInDevelopmentMode(SpringApplication.run(Application.class, args));
try {
System.out.println("Starting IciEventClient");
Object implementor = new IciEventServiceSoap12Impl();
String address = "http://localhost:8081/ici/IciEventService";
Endpoint.publish(address, implementor);
// http://localhost:8081/ici/IciEventService?WSDL
} catch (Exception e) {
e.printStackTrace();
}
}
}
While this works, I would like to get rid of separate Jetty dependency and run the SOAP service in Vaadin Tomcat (localhost:8080). Should be simple but I can’t figure out how to do it. I think that it needs a separate servlet and route, but I don’t know how to add them. There is no web.xml in the Vaadin application, for example.
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Answer
I am not familiar with Apache CXF, but based on CXF docs and the sample project I think I got it to work.
I downloaded a new Vaadin 14/Java 8 project from start.vaadin.com, and did the following:
Added the dependency
JavaScript<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-spring-boot-starter-jaxws</artifactId>
<version>3.4.3</version>
</dependency>
Created a web service
JavaScriptimport javax.jws.WebMethod;
import javax.jws.WebService;
@WebService
public class Test {
@WebMethod
public String test() {
return "This works";
}
}
Exposed it as a bean in my
Application
classJavaScriptimport javax.xml.ws.Endpoint;
import org.apache.cxf.Bus;
import org.apache.cxf.jaxws.EndpointImpl;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
import org.springframework.context.annotation.Bean;
import org.vaadin.artur.helpers.LaunchUtil;
import org.vaadin.erik.endpoint.Test;
@SpringBootApplication
public class Application extends SpringBootServletInitializer {
public static void main(String[] args) {
LaunchUtil.launchBrowserInDevelopmentMode(SpringApplication.run(Application.class, args));
}
@Bean
public Endpoint test(Bus bus) {
EndpointImpl endpoint = new EndpointImpl(bus, new Test());
endpoint.publish("/Test");
return endpoint;
}
}
That was it! At least I can now list the service definition at http://localhost:8080/services/Test?wsdl
The first documentation link lists some configurations you can do, for example to change the /services
path. The example project shows how to configure Spring actuator metrics if that is something you need.
You might want to create a separate @Configuration
-annotated class for all your service @Bean
definitions.
If you don’t want to use the starter dependency, this Baeldung article looks promising.