使用spring3 @Value访问PropertyPlaceholderConfigurer值?
问题描述：
当我的属性源是PropertyPlaceholderConfigurer的子类时，我正在尝试使用@Value在spring bean中设置字符串的值.有人知道该怎么做吗?
I'm trying to set the value of a string in a spring bean using @Value, when my property source is a subclass of PropertyPlaceholderConfigurer. Anyone know how to do this ?
答
旧问题，但仍然值得回答.您可以使用与原始PropertyPlaceholderConfigurer相同的方式来使用该表达式.
Old question, but still worth to be answered. You can use the expression the same way as you would with the original PropertyPlaceholderConfigurer.
app.properties
app.properties
app.value=Injected
app-context.xml
app-context.xml
<bean id="propertyConfigurer" class="MyPropertyPlaceholderConfigurer">
<property name="location">
<value>file:app.properties</value>
</property>
</bean>
在目标bean中
@Value(value="${app.value}")
private String injected;
使用Spring 3.0.6测试了这种方法
Tested this approach using Spring 3.0.6