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Sams Teach Yourself J2EE™ in 21 Days by Peter Roxburgh, Andy Longshaw, Debbie Law, Dan Haywood, Martin Bond

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Day 20. Using RPC-Style Web Services with J2EE

So far, you have seen how to use existing J2EE technologies to build multitier applications. However, the world moves on. A key area of interest at the turn of the millennium is how to integrate applications both within and between organizations. Web Services provide a flexible and powerful integration mechanism that can be used to expose existing functionality and components to other organizations or to new applications. Today and tomorrow, you will see how you can use Web Services to build bridges between J2EE application components and any other platforms that support Web Services.

Web Services are seen by many as the next wave of the Internet revolution. The vision is of a Web as rich with functionality ...

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