spring bean 的基础配置

  spring bean的配置包含 3种基本情况
  1 全类名配置
  2 工厂方法
  3 beanFactory
 
 

	<bean id="car1" class="com.jfn.beans.setter.Car">
	   <!-- setter 注入 -->
	   <property name="name" value="ford"></property>
	   <property name="price" value="30000"></property>
	   <!-- 构造器注入 -->
	   <constructor-arg value="xxx" index="0"></constructor-arg>
	   <constructor-arg value="2000000" index="1"></constructor-arg>
	   <!-- 注入 list map propertieys属性 -->
	   <!-- <property name="">
	     <list></list>
	     <map></map>
	     <props></props>
	   </property> -->
	</bean>
  

 

<!-- 静态工厂 -->
	<bean id="car" class="com.staticfactory.StaticFactory" factory-method="staticFactory">
		<constructor-arg value="audi"></constructor-arg>
	</bean>

	<!-- 实例工厂bean -->
	<bean id="carFactory" class="com.instancefactory.InstanceFactory"></bean>
	<bean id="car2" factory-bean="carFactory" factory-method="getCar">
	    <constructor-arg value="ford"></constructor-arg>
	</bean>

public class CarFactoryBean implements FactoryBean<Car>{

	private String name;

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

	@Override
	public Car getObject() throws Exception {
		// TODO Auto-generated method stub
		return new Car(name,300000);
	}

	@Override
	public Class<?> getObjectType() {
		// TODO Auto-generated method stub
		return Car.class;
	}

	@Override
	public boolean isSingleton() {
		// TODO Auto-generated method stub
		return true;
	}

}

<bean id="car" class="com.factorybean.CarFactoryBean">
	  <property name="name" value="BMW"></property>
	</bean>