applicationContext.xml引入Properties文件，@value不起作用

Question

代码如下
applicationContext.xml

<bean class="org.springframework.context.support.PropertySourcesPlaceholderConfigurer">
    <property name="locations">
        <list>
            <value>/WEB-INF/config/jdbc.properties</value>
            <value>/WEB-INF/config/webapp.properties</value>
            <value>/WEB-INF/config/thauth.properties</value>
        </list>
    </property>
    
</bean>

web.xml

<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>
            /WEB-INF/config/spring/common/*-context.xml
            /WEB-INF/config/spring/components/*-context.xml
        </param-value>
</context-param>

<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

java 代码

@Value("${dataSource.jndiName}")
private String value;

Answer 1

@Value注解的这个类是否被Spring扫描到，是否加了@Component注解或其他。