
import org.springframework.stereotype.component;
@component
public class employee implements person {
}

import org.springframework.stereotype.component;
@component
public class customer implements person {

import org.springframework.beans.factory.annotation.autowired;
public class organization {
@autowired
list<person> people;
public string tostring() {
return people.tostring();
}
此例中,organization中的people是無序的。多數情況下,在xml配置裡,bean被有序添加到people list。這時srping 4.0提供了一個解決方案:使用@order。
@order注解在spring2.0時已經在spring架構裡。它的主要作用是給元件排序。現在在spring4.0裡,它也能給注入到有序的colletion的bean排序。@order接受一個排序值,值小的優先級高,也意味着在collection中排序靠前。上面的例子改寫成:

import org.springframework.core.annotation.order;
@order(value=1)

@order(value=2)
public class customer implements person {
}