Spring中BeanFactory和FactoryBean区别

最新推荐文章于 2025-10-18 12:50:40 发布

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本文详细解读Spring框架中FactoryBean、BeanFactory等核心组件的功能和使用方法，为开发者提供全面的技术指南。

直接看Spring源码：

package org.springframework.beans.factory;

public interface FactoryBean<T> {
    T getObject() throws Exception;

    Class<?> getObjectType();

    boolean isSingleton();
}

package org.springframework.beans.factory;

import org.springframework.beans.BeansException;
import org.springframework.beans.factory.NoSuchBeanDefinitionException;

public interface BeanFactory {
    String FACTORY_BEAN_PREFIX = "&";

    Object getBean(String var1) throws BeansException;

    <T> T getBean(String var1, Class<T> var2) throws BeansException;

    <T> T getBean(Class<T> var1) throws BeansException;

    Object getBean(String var1, Object... var2) throws BeansException;

    boolean containsBean(String var1);

    boolean isSingleton(String var1) throws NoSuchBeanDefinitionException;

    boolean isPrototype(String var1) throws NoSuchBeanDefinitionException;

    boolean isTypeMatch(String var1, Class<?> var2) throws NoSuchBeanDefinitionException;

    Class<?> getType(String var1) throws NoSuchBeanDefinitionException;

    String[] getAliases(String var1);
}