Web service in asp c# .net :
1. It is the way to publish applications function on
web that can be accessible to the rest of the world.
2. Web services are the components that can be used by other
applications
3. Asp .net offer easy way to develop web services, just
precede the functions with a special web method() attribute in order them to
work as web service.
4. It is discovered using the UDDI directory
services.
5. It is built on XML standard and use SOAP protocol
that allows them to communicate across different platforms and programming
languages.
6. It is easily manage to work across corporate
firewalls as they use HTTP protocol which is firewall friendly.
What are web services and why should we use web services?
Ans : web services are a standardized way for developing interoperable application to invoke a method of another application.
these applications can be on the same computer or different computers.
Web services platform elements are :
1. SOAP (simple object access protocol)
2. UDDI (Universal description, discovery and integration)
3. WSDL (web services description language)
A. The web services are built on internet standards that are
not platform or language specific
B. The .net framework provides –in-built classes to build and
consume web services.
C. The components offered by web services are reusable
The example of web service components can be shipment
tracking, sports scores ,translation utility, weather forecasting etc.
SOAP : stands ‘simple object access protocol’ web services
will be interact With soap messages written in XML.
SOAP is sometimes referred as “data wrapper” or “data envelope”.
It contains different
xml tag that creates a whole SOAP
message.
WSDL: stand for
“web services description language”
It is an xml document which is written according to standard
specified by w3c
It is a kind of manual or document that describes how we can
use and consume web service.
Web services development software processes the WSDL
document and generates SOAP messages that are
needed for specific web service .
UDDI : universal discovery description and integeration.
It is used for web services registes.you can find address of
web services from UDDI
No comments:
Post a Comment