spring-web-services

To build contract-first SOAP services in Spring, you define XSD and WSDL contracts first, then implement @Endpoint handlers using Spring Web Services to map incoming XML payloads to JAXB-marshalled objects for structured endpoint exposure.

Configuring WS-Security in Spring Web Services involves applying security interceptors to your endpoint mappings to handle XML signing and encryption, ensuring SOAP messages are protected across both server and client WebServiceTemplate integrations.

JAXB marshalling in Spring Web Services works by automatically converting XML request payloads into Java objects for @Endpoint handlers, and then serializing response objects back into XML payloads using the configured WebServiceTemplate.

Handling SOAP faults in contract-first Spring endpoints requires defining fault details within your XSD or WSDL contract, then mapping Java exceptions to corresponding SOAP fault responses through Spring Web Services endpoint exception resolvers.

Yes, Spring Web Services supports publishing WSDL from an existing XSD schema through its DefaultWsdl11Definition configuration, automatically exposing the WSDL contract while keeping your contract-first SOAP service structure aligned with the defined schema.

You need a Spring Boot application configured with the spring-ws dependency to expose a contract-first SOAP endpoint, which provides the necessary servlet infrastructure to automatically map and route incoming SOAP requests to your @Endpoint classes.