spring内Bean的BeanDefiniton类型

存在的类型：

其实注解AppConfig配置类可以从源码解析
AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(); context.register(AppConfig.class);
第一行代码 生成 AnnotatedBeanDefinitionReader reader 、 ClassPathBeanDefinitionScanner scanner
第二行代码：new 一个BeanDefiniton 对象并根据条件给对象设置属性
AnnotatedGenericBeanDefinition abd = new AnnotatedGenericBeanDefinition(beanClass);

测试结果：

appConfig配置类对应的BeanDefiniton:
org.springframework.beans.factory.annotation.AnnotatedGenericBeanDefinition
@Bean 对应的BeanDefiniton:
org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader$ConfigurationClassBeanDefinition
xml bean标签:
org.springframework.beans.factory.support.GenericBeanDefinition
@Component 注解对应的beanDefiniton:
org.springframework.context.annotation.ScannedGenericBeanDefinition

测试Test类

package com.chuliuhuan.java.util;

import com.chuliuhuan.config.AppConfig;
import org.junit.Test;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;


public class CustomerCollectionTest {

	@Test
	public void initContext() {
		AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext();
		context.register(AppConfig.class);
		context.refresh();
		BeanDefinition appConfig = context.getBeanDefinition("appConfig");
		System.out.println("appConfig配置类对应的BeanDefiniton:n"+appConfig.getClass().getName());
		System.out.println("@Bean 对应的BeanDefiniton:n"+context.getBeanDefinition("transferService").getClass().getName());
		System.out.println("xml bean标签:n"+context.getBeanDefinition("autoService").getClass().getName());
		System.out.println("@Component 注解对应的beanDefiniton:n"+context.getBeanDefinition("indexService").getClass().getName());
	}


}

XML bean标签

package com.chuliuhuan.domain;



//@Service
public class AutoService {

}

@Component注解

package com.chuliuhuan.domain;

import org.springframework.stereotype.Component;


@Component
public class IndexService {
	public IndexService() {
	}
}

AppConfig配置类 和@Bean 注解生产的Bean

package com.chuliuhuan.config;

import com.chuliuhuan.domain.TransferService;
import com.chuliuhuan.domain.TransferServiceImpl;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.ImportResource;


@Configuration
@ImportResource("services.xml")
@ComponentScan("com.chuliuhuan.domain")
public class AppConfig {
	@Bean
	public TransferService transferService() {
		return new TransferServiceImpl();
	}
}