The Spring Framework provides a comprehensive programming and configuration model for modern Java-based enterprise applications - on any kind of deployment platform.
A key element of Spring is infrastructural support at the application level: Spring focuses on the "plumbing" of enterprise applications so that teams can focus on application-level business logic, without unnecessary ties to specific deployment environments.
Features
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Core technologies: dependency injection, events, resources, i18n, validation, data binding, type conversion, SpEL, AOP.
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Testing: mock objects, TestContext framework, Spring MVC Test,
WebTestClient. -
Data Access: transactions, DAO support, JDBC, ORM, Marshalling XML.
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Spring MVC and Spring WebFlux web frameworks.
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Integration: remoting, JMS, JCA, JMX, email, tasks, scheduling, cache.
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Languages: Kotlin, Groovy, dynamic languages.