1. What is Spring Shell?
Not all applications need a fancy web user interface. Sometimes, interacting with an application through an interactive terminal is the most appropriate way to get things done.
Spring Shell lets you create such a runnable application, where the user enters textual commands that are run until the program terminates. The Spring Shell project provides the infrastructure to create such a REPL (Read, Eval, Print Loop) application, letting you concentrate on implementing commands by using the familiar Spring programming model.
Spring Shell includes advanced features (such as parsing, tab completion, colorization of output, fancy ASCII-art table display, input conversion, and validation), freeing you to focus on core command logic.
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Spring Shell 2.1.x is a major rework to bring the codebase up to date with existing Spring Boot versions, adding new features and, especially, making it work with GraalVM which makes command-line applications much more relevant in a Java space. Moving to a new major version also lets us clean up the codebase and make some needed breaking changes. |