spring factoryBean

Monkey

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package com.melon.app.bean;
public class Monkey {
}

MelonFactoryBean

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package com.melon.app.config;

import com.melon.app.bean.Monkey;
import org.springframework.beans.factory.FactoryBean;

public class MelonFactoryBean implements FactoryBean<Monkey> {


    public Monkey getObject() throws Exception {
        return new Monkey();
    }

    public Class<?> getObjectType() {
        return Monkey.class;
    }

    public boolean isSingleton() {
        return false;
    }
}

@Configuration
@Import(value = {MelonImportSelector.class,MelonImportBeanDefinitionRegistrar.class})
public class MyImportConfigureation {

@Bean
public MelonFactoryBean melonFactoryBean(){
    return  new MelonFactoryBean();
}

}

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````
 ApplicationContext applicationContext = new AnnotationConfigApplicationContext(MyImportConfigureation.class);
    String[] str=  applicationContext.getBeanDefinitionNames();
    Object bean1 = applicationContext.getBean("melonFactoryBean");
    System.out.println(bean1.getClass());

结果如下

class com.melon.app.bean.Monkey
org.springframework.context.annotation.internalConfigurationAnnotationProcessor
org.springframework.context.annotation.internalAutowiredAnnotationProcessor
org.springframework.context.annotation.internalCommonAnnotationProcessor
org.springframework.context.event.internalEventListenerProcessor
org.springframework.context.event.internalEventListenerFactory
myImportConfigureation
com.melon.app.bean.Cat
com.melon.app.bean.Dog
melonFactoryBean
pig