Spring MVC's Frameworkservlet source analysis

Frameworkservlet is a subclass of Httpservletbean, which implements the Initservletbean method of Httpservletbean.

Through Initservletbean () for Webapplicationcontext initialization, the source code is:

1     /**2 * Overridden method of {@linkHttpservletbean}, invoked after any bean properties3 * have been set. Creates this servlet ' s webapplicationcontext.4      */5 @Override6     protected Final voidInitservletbean ()throwsservletexception {7Getservletcontext (). log ("Initializing Spring frameworkservlet" + getservletname () + "'");8         if( This. logger.isinfoenabled ()) {9              This. Logger.info ("Frameworkservlet" + getservletname () + "': Initialization Started");Ten         } One         LongStartTime =System.currenttimemillis (); A  -         Try { -              This. Webapplicationcontext =Initwebapplicationcontext (); the Initframeworkservlet (); -         } -         Catch(Servletexception ex) { -              This. Logger.error ("Context initialization Failed", ex); +             Throwex; -         } +         Catch(RuntimeException ex) { A              This. Logger.error ("Context initialization Failed", ex); at             Throwex; -         } -  -         if( This. logger.isinfoenabled ()) { -             LongElapsedTime = System.currenttimemillis ()-StartTime; -              This. Logger.info ("Frameworkservlet" + getservletname () + "': Initialization completed in" + inElapsedTime + "MS"); -         } to}

Its main function is to call the Initwebapplicationcontext method to initialize a webapplicationcontext.

The following is the source code of Initwebapplicationcontext:

Spring MVC's Frameworkservlet source analysis