Java Tutorial - Java Script :
XML Web Services
Over the years, there have been numerous attempts to create a standard protocol for remote procedure calls (RPC), a way for one computer program to call a procedure in another program over a network such as the Internet. Often these protocols are completely language agnostic, enabling a client program written in a language such as C++ to call a remote database server written in Java or something else without either side knowing or caring about the implementation language of its partner. RPC efforts are being driven at breakneck speed by web services, networking programs that use the Web to offer data in a form easily digested by other software.
Web services are being employed to share password authentication information between sites, facilitate e-commerce transactions between stores, provide business-to-business information exchange, and other innovative offerings. One of the most popular technologies in this area is XML-RPC, a protocol for using Hypertext Transfer Protocol (HTTP) and Extensible Markup Language (XML) for remote procedure calls. Today, you’ll learn how to implement it in Java as the following topics are covered:
· How XML-RPC was developed
· How to communicate with another computer using XML-RPC
· How to structure an XML-RPC request and an XML-RPC response
· How to use XML-RPC in Java programs
· How to send an XML-RPC request
· How to receive an XML-RPC response
