Spring的注解IOC

Java注解方式出来很长时间了，迟迟偷懒，对此不曾多加理会。今晚大致看了一下Spring的注解实现，果然省略不少往日Spring XML文件的编写和维护的工作。

 

  使用注解定义Boss类，名称:boss，范围：prototype

 

@Component("boss")
@Scope("prototype")
public class Boss {
	@Autowired
	private Car car;

	@Autowired
	private Office office;

	public Car getCar() {
		return car;
	}

	public void setCar(Car car) {
		this.car = car;
	}

	public Office getOffice() {
		return office;
	}

	public void setOffice(Office office) {
		this.office = office;
	}

	@Override
	public String toString() {
		return "car:" + car + "\n" + "office:" + office;
	}

	@PostConstruct
	public void postConstruct1() {
		System.out.println("postConstruct1");
	}

	@PreDestroy
	public void preDestroy1() {
		System.out.println("preDestroy1");
	}

}

 

   在Spring XML文件中声明如下内容：用于Spring容器从哪里扫描Bean对象（提供regex、aspectj两种表达式）

<context:component-scan base-package="ioc.annotation.example6">
		<context:include-filter type="regex"
			expression="com\.annotation\.example6\..*" />
		<context:exclude-filter type="aspectj"
			expression="ioc.annotation.example6.service..*" />
</context:component-scan>