(Quick Reference) # 11.3.5 Events from Spring Version: 3.2.8 ## 11.3.5 Events from Spring Spring also fires a number of useful events. All events in the `org.springframework` package are prefixed with `spring:`. For example:
    import org.springframework.web.context.support.*
    import org.springframework.boot.context.event.*
    ...

    on("spring:applicationStarted") { ApplicationStartedEvent event ->
            // fired when the application starts
    }

    on("spring:servletRequestHandled") { RequestHandledEvent event ->
            // fired each time a request is handled
    }
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