Spring obtains the implementation method of the ApplicationContext object tool class,

Spring obtains the implementation method of the ApplicationContext object tool class,

How to Implement Spring's tool class for obtaining ApplicationContext objects

(1) tool class:

Package com. util; import org. springframework. context. applicationContext; import org. springframework. context. support. classPathXmlApplicationContext; final public class ApplicationContextUtil {private static ApplicationContext ac = null; private ApplicationContextUtil () {}static {ac = new ClassPathXmlApplicationContext ("applicationContext. xml ");} public static ApplicationContext getApplicationContext () {// get the returned container object return ac ;}}

(2) usage:

Public static void getByUtil () {ApplicationContextUtil. getApplicationContext (). getBean ("userService ");}

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