In addition to the basePackages attribute, also provides other attributes to fine-tune component scanning, such as excludeFilters, includeFilters, and useDefaultFilters. However, you can specify one or more base packages by providing them as arguments to the annotation. When is used, Spring will automatically detect and register all the beans (components) defined in the specified package and its sub-packages, making them available for dependency injection.īy default, scans the package of the class where it is defined. It tells the Spring container where to look for annotated Spring components. Spring Framework, is an annotation used to configure the scanning of components (such as and in the specified package and its sub-packages. Btw, if you are new to Spring, then I suggest you check a comprehensive course like Spring Framework 5 Beginner to Guru, which will not only teach you these annotations but also other spring fundamentals you need to know to work effectively with Spring.Ģ. They make heavy use of Annotations to provide features you love, like automatically detecting beans, creating their instances, and injecting them into the objects which need them. This helpful little metadata can do wonders in terms of improving code quality and reducing the chance of errors.Įver since annotations were introduced in JDK 1.5, they have entirely changed the Java landscape with more and more frameworks adopting them to provide services and features, and Spring is no different. The type which starts with like possibly the most popular Java annotations ever. If you have been coding Java for a couple of months, then you may have come across at least the annotations. What this proves is that Spring is continuously evolving, and you have to keep up with its pace to keep yourself up-to-date, and knowing some essential Spring annotations will undoubtedly help in your journey of Spring.
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