Spring Boot Soap WSDL不包含任何wsdl:portType部分

@Configuration
@EnableWs
public class WebServiceConfig extends WsConfigurerAdapter {
    @Bean
    public ServletRegistrationBean<MessageDispatcherServlet> messageDispatcherServlet(ApplicationContext applicationContext) {
        MessageDispatcherServlet servlet = new MessageDispatcherServlet();
        servlet.setApplicationContext(applicationContext);
        servlet.setTransformWsdlLocations(true);
        return new ServletRegistrationBean<>(servlet, "/ws/*");
    }

    @Bean(name = "exampleService")
    public DefaultWsdl11Definition defaultWsdl11Definition(XsdSchema exampleSchema) {
        DefaultWsdl11Definition wsdl11Definition = new DefaultWsdl11Definition();
        wsdl11Definition.setPortTypeName("ExamplePort");
        wsdl11Definition.setLocationUri("/ws");
        wsdl11Definition.setTargetNamespace("http://example.com/namespace");
        wsdl11Definition.setSchema(exampleSchema);
        return wsdl11Definition;
    }

    @Bean
    public XsdSchema exampleSchema() {
        return new SimpleXsdSchema(new ClassPathResource("example.xsd"));
    }
}