该注解用来标识类型,当类型上标记了本注解,系统会在初始化阶段实例化该对象,并且对需要自动装载的属性进行赋值
该注解标识的类型生成的对象不使用动态代理的方式实例化,不会被默认拦截器拦截
This annotation is used to identify the type, and when the annotation is marked on the type,
the system instantiates the object in the initialization phase and assigns the attributes that need to be automatically loaded.
The type generated by the annotation identifier is not instantiated using a dynamic proxy and is not intercepted by the default interceptor.