1：Car

package com.bean.factorybean;


public class Car {
private String brand;
  private int price;
public Car() {
System.out.println("Car's Constructor...");

}

public Car(String brand, int price) {
this.brand = brand;
this.price = price;
}


public String getBrand() {
return brand;
}
public void setBrand(String brand) {
this.brand = brand;
}
public int getPrice() {
return price;
}
public void setPrice(int price) {
this.price = price;
}


@Override
public String toString() {
return "Car [brand=" + brand + ", price=" + price + "]";
}
  
}

2:CarFactoryBean

package com.bean.factorybean;


import org.springframework.beans.factory.FactoryBean;
//自定義的FactoryBean,需要實現FactoryBean介面
public class CarFactoryBean implements FactoryBean<Car> {
 private String brand;
 
public void setBrand(String brand) {
this.brand = brand;
}
public Car getObject() throws Exception {
return new Car(brand,5000);
}
/**
 * 返回bean型別
 */
public Class<?> getObjectType() {
return Car.class;
}


public boolean isSingleton() {
return true;
}


}

3:xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:util="http://www.springframework.org/schema/util"
xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">
 <!-- 通過FactoryBean來配置bean的例項 
   class:指向FactoryBean的全類名
    property: 配置FactoryBean的屬性
    但實際返回的例項卻是FactoryBean的getObject()方法返回的例項
 -->
 <bean id="car" class="com.bean.factorybean.CarFactoryBean">
 <property name="brand" value="BMN"></property>
 </bean>
  </beans>

4:Main

package com.bean.factorybean;


import org.springframework.context.support.ClassPathXmlApplicationContext;


import com.bean.factorybean.Car;


public class Main {
public static void main(String[] args) {
//ApplicationContext子介面是ClassPathXmlApplication(有close方法)
ClassPathXmlApplicationContext ctx=new ClassPathXmlApplicationContext("beans-beanfactory.xml");
 //2:從IOC容器中獲取Bean例項
Car car=(Car)ctx.getBean("car");
System.out.println(car);
//關閉IOC容器
ctx.close();
}
}