Spring @Value annotation and setter injection difference

when set value to object from property file use @Value annotation some kind of value like below not set fine but use setter injection work fine.

my properties file like this.

app.work.dir=file:${user.home}/WORK

class file like below.

@Value("#{configProperties['app.work.dir']}")
private String workdir;

and this is my xml setting.

<util:properties id="configProperties" location="classpath:config.properties" />

when use setter injection like below then work fine.

<bean id="sampleService" class="aaa.SampleService">
    <property name="workdir" value="${app.work.dir}" />
</bean>

i'm not sure why and if possible i want to use @Value annotation.