Spring之FactoryBean

介绍

FactoryBean是用来构造Bean的接口。

源码

package org.springframework.beans.factory;

public interface FactoryBean<T> {

	/**
	 * Return an instance (possibly shared or independent) of the object
	 * managed by this factory.
	 * 返回由FactoryBean管理的对象实例
	 */
	T getObject() throws Exception;
	
  /**
	 * Return the type of object that this FactoryBean creates,
	 * or {@code null} if not known in advance.
	 * 返回对象实例的类型
	 */
	Class<?> getObjectType();

	/**
	 * Is the object managed by this factory a singleton? 
	 */
	boolean isSingleton();

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参考文档：

1. https://blog.51cto.com/4247649/2118353