源码注释性容器的创建及初始化

ApplicationContext ctx = new AnnotationConfigApplicationContext(AppConfig.class); 
MyService myService = ctx.getBean(MyService.class);　　// by type...

myService.doStuff();

动态注册：

public static void main(String[] args) {

    AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext(); 
    ctx.register(AppConfig.class, OtherConfig.class); 
    ctx.register(AdditionalConfig.class);

    ctx.refresh();

    MyService myService = ctx.getBean(MyService.class);

    myService.doStuff();

}

 主动扫描package：

public static void main(String[] args) {

    AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext(); ctx.scan("com.acme");

    ctx.refresh();

    MyService myService = ctx.getBean(MyService.class);

}