This book begins with an introduction to the enterprise integration landscape, the challenges, the approaches that have been tried, and how Spring Integration can help address these issues. You will learn how to deal with enterprise integration challenges such as the heterogeneous communication format, data transfer, transformation, external system invocation, security or transaction propagation, and more. You will also see how each of these layers can be addressed by a specific set of Spring Integration components.You will explore each Spring Integration component in the context of the enterprise integration problem that it tries to address by covering the theory, writing code snippets, and doing real integration.By the end, you will not only be able to identify and design enterprise communication, but you will also be able to code it using Spring Integration.