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Web services

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Brief introduction to Web Services

Brief introduction to Web Services

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  • 1. Web Services Agenda: Ø  What is a Web Service Ø  Uses of Web Services Ø  Types of Web Services Ø  Web Service protocols Ø  Web Services Description Language (WSDL) Ø  What is SOAP http://helloworldtutorials.blogspot.com http://helloworldtutorials.blogspot.com
  • 2. What is a Web Service http://helloworldtutorials.blogspot.com http://helloworldtutorials.blogspot.com CLIENT SERVER Exchange data JAVA It is a service to exchange data from different unknown systems. C#
  • 3. Uses of Web Services —  Reuse of existing applications —  Communicate or Exchange with different platforms. http://helloworldtutorials.blogspot.com http://helloworldtutorials.blogspot.com Currency ConverterBank of America Wells Fargo AXIS
  • 4. Types of Web Services —  Simple Web services —  Complex Web services Simple Web services have only simple data types like integer, string and other types are sent and receive Complex Web Services are need to configure the ability to send and receive more than the simple data types. http://helloworldtutorials.blogspot.com http://helloworldtutorials.blogspot.com
  • 5. Web Service protocols —  SOAP —  REST —  BEEP —  JSON-RPC —  XMLL-RPC http://helloworldtutorials.blogspot.com http://helloworldtutorials.blogspot.com
  • 6. Web Services Description Language (WSDL) —  WSDL is an XML document, used to describe Web services —  It describes major 4 elements —  <types> —  <message> —  <port Type> —  <binding> We can generate WSDL through IDE or can written manually. First create WSDL and then developing implementation classes depends on WSDL called Top-down approach. Depends on implementation classes creating WSDL is Bottom-up approach. http://helloworldtutorials.blogspot.com http://helloworldtutorials.blogspot.com
  • 7. —  It is a simple XML-base protocol to access web services or to exchange information over HTTP. http://helloworldtutorials.blogspot.com What is SOAP CLIENT SERVER SOAP Protocol http://helloworldtutorials.blogspot.com

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