Issuing HTTP GET Requests The key class here is HttpURLConnection, obtained by invoking openConnection on a URL object. Sadly, openConnection method’s signature specifies that it returns the superclass type, URLConnection, and we have to downcast the result. The following method issues a request and returns the entire response as one long string: public static...
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Web Services are the key point of Integration for different applications belonging to different Platforms, Languages, systems. It wouldn’t be wrong if you call Web-services as the “Rendezvous point of the Business”. I’ve been using HTTP and SOAP since several years new. REST is rather new. SOAP revolutionized RPC and loose coupling beyond the...
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I am seeing a lot of new web services are implemented using a REST style architecture these days rather than a SOAP one. Lets step back a second and explain what REST is. What is a REST Web Service The acronym REST stands for Representational State Transfer, this basically means that each unique URL...
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WSDL Ports The <portType> element is the most important WSDL element. It describes a web service, the operations that can be performed, and the messages that are involved. The <portType> element can be compared to a function library (or a module, or a class) in a traditional programming language. WSDL Messages The <message> element...
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WSDL stands for Web Services Description Language WSDL is written in XML WSDL is an XML document WSDL is used to describe Web services WSDL is also used to locate Web services WSDL is a W3C recommendation
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