Spring将属性值从一个bean注入另一个bean

Question

在spring initialize之后，我希望将第二个bean的属性值合并到第一个bean中。请告知spring是否提供了动态注入值的类。

first bean gets the values from property file:
----------------------------------------------
@value("username")
private String username
@Value("server")
private String servername
@Value("inject from second bean")
private String location
@Value("inject from second bean")
private boolean enabled

second bean gets the values from different source
-----------------------------------------------
private String location
private boolean enabled

Answer 1

尝试使用Luanggage表达式：

@Value(#{anotherBean.location})
private String location
@Value(#{anotherBean.enabled})
private boolean enabled

更新

或者，您也可以在post构造中指定：

@Autowired
private AnotherBean anotherBean;

@PostConstruct
public void init(){
    location = anotherBean.getLocation();
    enabled = anotherBean.isEnabled();
}

@Scope("prototype")