1.直接通过@Resource注解注入
代码语言：javascript复制@Resource
ApplicationContext applicationContext;2.实现ApplicationContextAware接口
@Component
代码语言：javascript复制public class SpringBeanUtils implements ApplicationContextAware {
private static ApplicationContext applicationContext;
@Override
public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
SpringBeanUtils.applicationContext = applicationContext;
}
public ApplicationContext getApplicationContext(){
return applicationContext;
}
}3.在启动类main方法中设置
代码语言：javascript复制ConfigurableApplicationContext run = SpringApplication.run(DemoApplication.class, args);
SpringBeanUtils.applicationContext = run;4.实现ApplicationListener接口
代码语言：javascript复制@Component
public class CustomApplicationListener implements ApplicationListener<ApplicationContextEvent> {
@Override
public void onApplicationEvent(ApplicationContextEvent event) {
SpringBeanUtils.applicationContext = event.getApplicationContext();
}
}5.实现ApplicationContextInitializer接口
代码语言：javascript复制@Component
public class CustomApplicationContextInitializer implements ApplicationContextInitializer {
@Override
public void initialize(ConfigurableApplicationContext applicationContext) {
SpringBeanUtils.applicationContext = applicationContext;
}
}
