Spring-Bean-工厂bean-实现FactoryBean接口

实现FactoryBean接口

（1）编写一个类实现FactoryBean接口

public class MyFactoryBeanImpl implements FactoryBean<AirPlane> {
    @Override
    public AirPlane getObject() throws Exception {
        AirPlane airPlane=new AirPlane();
        airPlane.setAirName("爱国者");
        airPlane.setCustomerNumber(300);
        airPlane.setColor("blue");

        return airPlane;
    }

    @Override
    public Class<?> getObjectType() {
        return AirPlane.class;
    }

    @Override
    public boolean isSingleton() {
        return false;
    }
}

public class AirPlane {
    private String captainName;
    private Integer customerNumber;
    private String airName;
    private String color;

    public AirPlane() {
    }

    public void setCaptainName(String captainName) {
        this.captainName = captainName;
    }

    public void setCustomerNumber(Integer customerNumber) {
        this.customerNumber = customerNumber;
    }

    public void setAirName(String airName) {
        this.airName = airName;
    }

    public void setColor(String color) {
        this.color = color;
    }

    @Override
    public String toString() {
        return "AirPlane{" +
                "captainName='" + captainName + '\'' +
                ", customerNumber=" + customerNumber +
                ", airName='" + airName + '\'' +
                ", color='" + color + '\'' +
                '}';
    }
}

（2）配置文件

<bean id="airPlane3" class="com.orz.spring.bean.MyFactoryBeanImpl" />

（3）测试

@Test
public void test1()
{
    ApplicationContext applicationContext=new ClassPathXmlApplicationContext("bean.xml");
    AirPlane airPlane = applicationContext.getBean("airPlane3", AirPlane.class);
    System.out.println(airPlane);
}

（4）结果

AirPlane{captainName='null', customerNumber=300, airName='爱国者', color='blue'}