Is it possible to add a property from PropertyPlaceholder to a bean via @Autowired? I can't inject it in the xml-context-config because the beans are loaded this way:
<context:component-scan base-package="..."/>
views:
407answers:
2
+3
A:
In spring 3.0 (i think from Milestone 3) you can use @Value(${foo.bar}) to access properties from PropertyPlaceholder.
semberal
2010-01-19 15:03:48
can you give me an example for this? i am using spring 3 rc3 and when i try this way (e.g. @Value("${foo.bar}") ) then my attribute gets the value "foo.bar" ...
woezelmann
2010-01-19 15:08:59
Yes, lets say you have property placeholder configured like this: `<context:property-placeholder location="classpath:app.properties"/>` you can inject the value of property with key `foo.bar` from `app.properties` to you bean: `class MyBean { @Value(${"foo.bar"} private String value; }`
semberal
2010-01-19 15:16:03
Sorry for the formatting, I'm new in here :)
semberal
2010-01-19 15:22:17
ok, now i got it :D thanks !
woezelmann
2010-01-19 15:26:46
+3
A:
A spring 2.5 approach:
@Component
public class Foo {
@Autowired
@Qualifier("myFlag")
private Boolean flag;
/* ... */
}
and the context
<context:component-scan base-package="..."/>
<context:property-placeholder location="classpath:app.properties"/>
<!-- the flag bean -->
<bean id="myFlag" class="java.lang.Boolean">
<constructor-arg value="${foo.bar}"/>
</bean>
Cheers
Paul McKenzie
2010-01-19 16:50:34