Spring BeanFactory

public?interface?BeanFactory?{

???String?FACTORY_BEAN_PREFIX?=?"&";


???/**
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???Object?getBean(String?name)?throws?BeansException;

???/**
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???<T>?T?getBean(String?name,?@Nullable?Class<T>?requiredType)?throws?BeansException;

???/**
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???Object?getBean(String?name,?Object...?args)?throws?BeansException;

???/**
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???<T>?T?getBean(Class<T>?requiredType)?throws?BeansException;

???/**
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???<T>?T?getBean(Class<T>?requiredType,?Object...?args)?throws?BeansException;


???/**
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???boolean?containsBean(String?name);

???/**
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???boolean?isSingleton(String?name)?throws?NoSuchBeanDefinitionException;

???/**
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???boolean?isPrototype(String?name)?throws?NoSuchBeanDefinitionException;

???/**
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???boolean?isTypeMatch(String?name,?ResolvableType?typeToMatch)?throws?NoSuchBeanDefinitionException;

???/**
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???boolean?isTypeMatch(String?name,?@Nullable?Class<?>?typeToMatch)?throws?NoSuchBeanDefinitionException;

???/**
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???@Nullable
???Class<?>?getType(String?name)?throws?NoSuchBeanDefinitionException;

???/**
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???String[]?getAliases(String?name);

}

• getBean

  重載了(overload)5個getBean方法：可分為1.按照name獲取bean。2.按照type獲取bean。

  其中getBean(String name,Object... args)與getBean(Class<T> requiredType,Object... args)方法需要注意后面的參數Object是構造方法的參數。另外bean的scope(bean在IOC容器中的生命周期)需要配置為prototype。