Do you know where your time is spent on startup? Is it bytecode scanning? (by servlet spec requirements in jetty? or by your 3rd party libs?) Is it annotation scanning? (by servlet spec requirements in jetty? or by your 3rd party libs?) I'm not familiar with "ContextLoaderListener", as that's not a term in the servlet spec. Perhaps you meant https://docs.oracle.com/javaee/7/api/javax/servlet/ServletContextListener.html#contextInitialized-javax.servlet.ServletContextEvent- ?
If startup time is important, then start moving away from runtime assembly of the webapp to build-time, such as doing things with statically defined configurations (many build tools can do this in an automatic fashion for you). For pure Servlet behaviors, Jetty even has a quickstart featureset that will perform the initialization phase of the servlet spec during build-time of your war, and will then produce a WEB-INF/jetty-quickstart.xml that short circuits all of the servlet spec bytecode scanning and annotation scanning, making startup of servlet features super quick. Whatever decision you go with, be aware that changes to the configuration of the WebApp can only occur during the servlet initialization phase, once that's done you can no longer change the state of the configuration (such as removing/adding servlets and filters). Joakim Erdfelt / [email protected] On Thu, Mar 4, 2021 at 4:39 AM Tarun Sharma <[email protected]> wrote: > Hi All, > I have a webapp on jetty which uses spring beans. I am using the listener > class of type 'ContextLoaderListener' to initialize the spring context and > then invoke some "startup action" on the beans. This "startup action" is > taking long on some occasions leading to delayed webapp startup. Is there a > way to move this action out of webapplication deployment so that my web > application is available quickly? > A concept of a delayed scheduled task might come handy. > Please suggest. > > Regards, > Tarun > _______________________________________________ > jetty-users mailing list > [email protected] > To unsubscribe from this list, visit > https://www.eclipse.org/mailman/listinfo/jetty-users >
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