FactoryBean+Bean

package com.example.demo10.entity;

//实体

public class Stu {

String name;public Stu(String name) { this.name = name;}public Stu() {}public String getName() { return name;}public void setName(String name) { this.name = name;}

}

package com.example.demo10.factory;

import com.example.demo10.entity.Stu;

import org.springframework.beans.factory.FactoryBean;

//创建一个Stu场子

public class StuFactory implements FactoryBean<Stu> {

@Overridepublic Class<?> getObjectType() { return Stu.class;}@Overridepublic boolean isSingleton() { return false;}@Overridepublic Stu getObject() throws Exception { return new Stu();}

}

package com.example.demo10.configuration;

import com.example.demo10.factory.StuFactory;

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.Configuration;

@Configuration

public class StuConfiguration {

//创建场子Bean//这里要注意返回的是场子对象，但是正真获取的是Stu对象@Beanpublic StuFactory stuFactory(){ return new StuFactory();}

}

package com.example.demo10;

import com.example.demo10.entity.Stu;

import com.example.demo10.factory.StuFactory;

import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;

import org.springframework.context.ConfigurableApplicationContext;

@SpringBootApplication

public class Demo10Application {

public static void main(String[] args) { ConfigurableApplicationContext context = SpringApplication.run(Demo10Application.class, args); //获取场子里面的产品 Stu stu1 = context.getBean("stuFactory", Stu.class); Stu stu2 = context.getBean("stuFactory", Stu.class); System.out.println(stu1.getClass().getName()); System.out.println(stu1.hashCode()); System.out.println(stu2.getClass().getName()); System.out.println(stu2.hashCode()); //获取工厂自己 StuFactory stuFactory = context.getBean("&stuFactory", StuFactory.class); System.out.println(stuFactory.getClass().getName()); context.close();}

}