【Spring实战】——8自动装配

public class Instrumentalist implements Performer{
    private String song;
    private int age;
    private Instrument instrument;
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
    public String getSong() {
        return song;
    }
    public void setSong(String song) {
        this.sOng= song;
    }
    public Instrument getInstrument() {
        return instrument;
    }
    public void setInstrument(Instrument instrument) {
        this.instrument = instrument;
    }
    public Instrumentalist(){}
    public Instrumentalist(String song,int age,Instrument instrument){
        this.sOng= song;
        this.age = age;
        this.instrument = instrument;
    }
    public void perform() throws PerformanceException {
        System.out.println("Instrumentalist age:"+age);
        System.out.print("Playing "+song+":");
        instrument.play();
    }
}

public interface Instrument {
    public void play();
}

public class Saxophone implements Instrument {
    public Saxophone(){}
    public void play() {
        System.out.println("TOOT TOOT TOOT");
    }
}

public class test {
    public static void main(String[] args) throws PerformanceException {
        ApplicationContext ctx = new ClassPathXmlApplicationContext("bean.xml");
        
        Instrumentalist performer = (Instrumentalist)ctx.getBean("kenny");
        performer.perform();
        
    }
}