@Autowired的“原型”实例有多少个实例。在@component的使用过程中创建bean是（是）
我有一个Manager @component和@scope的类
@Component
@Scope(value = "prototype")
public class Manager {
...
}
，因此我希望Manager bean的新实例每次请求Bean时都会创建。
然后，我有一个适配器类，该类使用此Manager bean。要使用它，我有两种汽车的方法：1。在属性上或2。在构造函数上：
@Component
public class Adapter {
@Autowired
Manager m_Manager;
...
}
或
@Component
public class Adapter {
Manager m_manager;
@Autowired
public Adapter(Manager manager) {
m_manager = manager;
}
...
}
因为aDapter class class class class as singleton bean，因此@Autowire属性或构造函数上的Manager仅创建Manager的一个实例？含义Manager bean实际上用作单身bean而不是原型bean，对吗？
I have a Managerclass annotated with @Component
and @Scope
@Component
@Scope(value = "prototype")
public class Manager {
...
}
So I expect a new instance of the Manager bean will be created each time the bean is requested.
Then I have an Adapter class which uses this Manager bean. To use it, I have two ways of Autowire: 1. on the property or 2. on the constructor:
@Component
public class Adapter {
@Autowired
Manager m_Manager;
...
}
Or
@Component
public class Adapter {
Manager m_manager;
@Autowired
public Adapter(Manager manager) {
m_manager = manager;
}
...
}
Since the Adaptor class is a singleton bean, so both @Autowire the Manageron the property or on the constructor will only create one instance of the Manager? Meaning Managerbean is actually used as a singleton bean instead of prototype bean, right?
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评论（2）
@Autowire的行为与ApplicationContext.getBean相同，
它为每个自动实例创建一个原型BEAN。您可以看到两个单例中的原型对象具有不同的标识符
如果您在构造函数或字段中使用@Autowire进行@Autowire，则没有任何区别。
do autowire on构造器只是避免注释重复的更方便的方法。
PS定义范围最好使用
@Autowire behaves in the same way as ApplicationContext.getBean
It creates a prototype bean for each autowired instance. you can see that the prototype object in two singletons has a different identifier
So each singleton has its own prototype instance. It doesn't have any difference if you do it with @Autowire in the constructor or field.
Do Autowire on constructor is just more convenient way to avoid annotation duplication.
P.S. To define scope is better to use
如果您没有任何其他注入点，则在您注入管理器实例的地方，则在应用程序上下文中只有一个实例，这是正确的。
If you don't have any other injection points, where you inject a Manager instance, then you will only have one instance in the application context, that's correct.