spring framework源码之AnnotationConfigApplicationContext

AnnotationConfigApplicationContext

　　内部使用了AnnotatedBeanDefinitionReader；ClassPathBeanDefinitionScanner

/**
     使用AnnotatedBeanDefinitionReader读取配置类*/
    public void register(Class<?>... annotatedClasses) {
        Assert.notEmpty(annotatedClasses, "At least one annotated class must be specified");
        this.reader.register(annotatedClasses);
    }

    /**
     使用ClassPathBeanDefinitionScanner扫描指定包*/
    public void scan(String... basePackages) {
        Assert.notEmpty(basePackages, "At least one base package must be specified");
        this.scanner.scan(basePackages);
    }

    /**
    使用AnnotatedBeanDefinitionReader注册一个bean，使用指定的构造函数。*/
    public <T> void registerBean(Class<T> annotatedClass, Object... constructorArguments) {
        registerBean(null, annotatedClass, constructorArguments);
    }
    public <T> void registerBean(@Nullable String beanName, Class<T> annotatedClass, Object... constructorArguments) {
        this.reader.doRegisterBean(annotatedClass, null, beanName, null,
                bd -> {
                    for (Object arg : constructorArguments) {
                        bd.getConstructorArgumentValues().addGenericArgumentValue(arg);
                    }
                });
    }
    @Override
    public <T> void registerBean(@Nullable String beanName, Class<T> beanClass, @Nullable Supplier<T> supplier,
            BeanDefinitionCustomizer... customizers) {
        this.reader.doRegisterBean(beanClass, supplier, beanName, null, customizers);
    }

AnnotatedBeanDefinitionReader