How does Spring expose Bean instances?

First, write the class [java] public class UtilBean {private static UtilBean utilBean; public void init () {UtilBean. utilBean = this;} public static UtilBean getUtilBean () {return utilBean;} // write other required methods and attributes below ...} then initialize the instance [html] <bean id = "utilBean" class = "com. model. utilBean "init-method =" init "lazy-init =" false "> </bean> the" init-method "configured here tells Spring to call after the utilBean instance is generated. method, in the above example, we assigned the generated instance to a static variable in the init method, so that you can directly use it when calling it without the need to inject the configuration example: UtilBean util = UtilBean. getUtilBean ();