Spring通过工厂方式配置bean

package factory;
import java.util.HashMap;
import java.util.Map;
/*
 * 静态工厂方法:直接调用某一个的静态方法就可以返回bean实例
 */
public class StaticCarFactory {
    private static Map<String,Car> cars=new HashMap<String,Car>();
    static {
        cars.put("aodi", new Car("aodi",3000));
        cars.put("ford", new Car("ford",20000));
    }
    //静态方法
    public static Car getCar(String name) {
        return cars.get(name);
    }
}

package factory;
public class Car {
    private String brand;
    private int price;
    public int getPrice() {
        return price;
    }
    public void setPrice(int price) {
        this.price = price;
    }
    public String getBrand() {
        return brand;
    }
    public void setBrand(String brand) {
        System.out.println("setBrand...");
        this.brand = brand;
    }
    public Car() {
        System.out.println("car Constructor...");
    }
    public void init() {
        System.out.println("init...");
    }
    public void destory() {
        System.out.println("destroy");
    }
    public Car(String brand,int price) {
        this.brand=brand;
        this.price=price;
    }
    @Override
    public String toString() {
        return "Car [brand=" + brand + ", price=" + price + "]";
    }
}

<?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-3.2.xsd">
    <!-- 通过静态方法来配置bean,注意不是配置静态工厂实例方法 而是配置bean实例 -->
    <!-- class属性:指向静态工厂方法的全类名
    factory-method:指向静态工厂方法的名字
    constructor-arg:如果工厂方法需要传入参数,则使用constructor-arg来配置参数
     -->
    <bean id="car1" class="factory.StaticCarFactory"
        factory-method="getCar"><constructor-arg value="aodi"></constructor-arg>
        </bean>
</beans>

package factory;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class Main {
    public static void main(String[] args) {
        ApplicationContext ac=new ClassPathXmlApplicationContext("beans-factory.xml");
        Car car=(Car) ac.getBean("car1");
        System.out.println(car);
    }
}