What is the use of @WebService annotation?
The annotation @WebService tells the server runtime environment to expose all public methods on that bean as a web service. You can control more levels of granularity by adding other annotations on individual methods or parameters. Using annotations makes it much easier to expose Java artifacts as web services.
Which of these are annotations of JAX WS?
1. JAX-WS annotations
- 1.1 @WebService. This JAX-WS annotation can be used in 2 ways.
- 1.2 @SOAPBinding. Demonstration of @SOAPBinding JAX-WS annotation has already been shown in first program in 1.1.
- 1.3 @WebMethod. @WebMethod JAX-WS annotation can be applied over a method only.
- 1.4 @WebResult.
- 1.5 @WebServiceClient.
Which of these are important annotations in used in Jax RS API?
JAX-RS API provides following annotations to develop RESTful applications in java….JAX-RS Annotations.
| Annotation | Description |
|---|---|
| POST | specifies method responds to POST request. |
| PUT | specifies method responds to PUT request. |
| HEAD | specifies method responds to HEAD request. |
| DELETE | specifies method responds to DELETE request. |
What is Jax RS answer to JAX-WS WSDL?
JAX-WS uses SOAP as its main method of communication. JAX-RS uses the Restful architectural structure to communicate between a client and a server. JAX-WS follows the SOAP protocol and interacts in XML messages. In response to each message, another XML message is passed down from the server to the host.
What is the use of @WebServlet?
Use the @WebServlet annotation to define a servlet component in a web application. This annotation is specified on a class and contains metadata about the servlet being declared. The annotated servlet must specify at least one URL pattern. This is done by using the urlPatterns or value attribute on the annotation.
What is @WebResult?
@WebResult is used to customize name of the XML element that represents the return value. @WebMethod is used to mark business methods that are exposed to web service clients. By default all public methods in your class are exposed, if you don’t implement web service interface.
What are annotations in REST API?
Annotations are like meta-tags that you can add to the code and apply to package declarations, type declarations, constructors, methods, fields, parameters, and variables.
What is the use of @path annotation?
The @Path annotation is used to specify the URI through which a resource and an API can be accessed. Resource in this case is the REST Web service itself. Thus this annotation is present at the class level as well as the method level. It is mandatory to annotate a REST Web resource class with the @Path annotation.
What is the difference between JAX-WS and JAX-RS?
What is the use of @webfault annotation?
The @WebFault annotation is used to map the Java exception to a wsdl:fault element. This information is used to marshall the exceptions into a representation that can be processed by both the service and its consumers.
What is the default value of @webfault?
The default value is the target namespace of the SEI. Specifies the full name of the Java class that implements the wrapper element. Only the className property is required. The @WebFault annotation is defined by the javax.xml.ws.WebFault interface.
What is @webresult annotation in Java?
The @WebResult annotation is defined by the javax.jws.WebResult interface. It is placed on the methods defined in the SEI. The @WebResult annotation allows you to specify the properties of the generated wsdl:part that is generated for the method’s return value. The following table describes the properties of the @WebResult annotation.
What is @WebMethod annotation in Java?
When the runtime maps your Java method definitions into XML operation definitions it fills in details such as: what the exchanged messages look like in XML. if the message can be optimized as a one way message. the namespaces where the messages are defined. The @WebMethod annotation is defined by the javax.jws.WebMethod interface.