spring boot获取ApplicationContext对象

1. @Autowired注入

@Autowired
private ApplicationContext applicationContext;

2. 实现ApplicationContextAware接口

@Component
public class ApplicationContextHolder implements ApplicationContextAware {
    private ApplicationContext applicationContext;
    //容器启动后自动调用该方法
    @Override
    public void setApplicationContext(ApplicationContext applicationContext){
        this.applicationContext = applicationContext;
    }

    public ApplicationContext getApplicationContext() {
        return applicationContext;
    }
}