Car.java
package com.gong.spring.beans.factory; public class Car { private String name; private double price; public String getName() { return name; } void setName(String name) { this.name = getPrice() { price; } void setPrice( price) { this.price =public Car(String name,super(); name; price; } @Override String toString() { return "Car [name=" + name + ",price=" + price + "]"; } }
InstanceFactory.java
import java.util.HashMap; java.util.Map; //实例工厂方法,先要创建工厂方法本身,再调用工厂的实例方法返回Bean的实例 InstanceFactory { private Map<String,Car> cars = null; InstanceFactory() { cars = new HashMap<String,Car>(); cars.put("baoma",1)">new Car("baoma",200000)); cars.put("benchi",1)">new Car("benchi",300000)); } Car getCar(String name) { cars.get(name); } }
beans-factory.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" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> <!-- 配置工厂的实例 --> bean id="carFactory" class="com.gong.spring.beans.factory.InstanceFactory"></bean> 通过实例工厂方法配置Bean ="car" factory-bean factory-method="getCar"> constructor-arg value="baoma"constructor-arg</> beans>
Main.java
org.springframework.context.support.ClassPathXmlApplicationContext; Main { static main(String[] args) { 1.创建spring的IOC容器对象 ClassPathXmlApplicationContext ctx = new ClassPathXmlApplicationContext("beans-factory.xml"); 2.从容器中获取Bean实例 Car car = (Car) ctx.getBean("car"); System.out.println(car.toString()); ctx.close(); } }
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