Web services validating the sender
To use the HTTP transport, either set the Spring Web Services also provides an email transport, which can be used to send web service messages via SMTP, and retrieve them via either POP3 or IMAP. The next section will focus on writing integration tests, using the test features introduced in Spring Web Services 2.0. The underlying idea is that the web service template connects to this mock server, sends it request message, which the mock server then verifies against the registered expectations.
The client-side email functionality is contained in the import If the expectations are met, the mock server then prepares a response message, which is send back to the template.
, which uses the Apache Http Components Http Client. (For more information about marshalling and unmarshaller, refer to the Spring documentation.) By using the marshallers, your application code can focus on the business object that is being sent or received and not be concerned with the details of how it is represented as XML.
Use the latter if you need more advanced and easy-to-use functionality (such as authentication, HTTP connection pooling, and so forth). In order to use the marshalling functionality, you have to set a marshaller and unmarshaller with the The first approach can easily be accomplished with mocking frameworks such as Easy Mock, JMock, etc.
Spring-WS provides a client-side Web service API that allows for consistent, XML-driven access to Web services.
It also caters for the use of marshallers and unmarshallers so that your service tier code can deal exclusively with Java objects. The design principle common to Spring template classes is to provide helper methods to perform common operations, and for more sophisticated usage, delegate to user implemented callback interfaces. The classes offer various convenience methods for the sending and receiving of XML messages, marshalling objects to XML before sending, and allows for multiple transport options. Web Service Message Sender; public class Web Service Client class is thread-safe once configured (assuming that all of it's dependencies are thread-safe too, which is the case for all of the dependencies that ship with Spring-WS), and so multiple objects can use the same shared .
No matter how big your company is or what it does, security is a primary consideration when choosing a Web service for all applications.