Spring MVC 2.5加载属性PropertiesFactoryBean不返回.properties信息

Question

我想在项目中加载一个属性：

<beans>
    ... 
    <context:annotation-config />
    <bean id="properties_es"
        class="org.springframework.beans.factory.config.PropertiesFactoryBean">
        <property name="location" value="classpath:/texts/report_es.properties" />
    </bean>
    <bean id="properties_en"
        class="org.springframework.beans.factory.config.PropertiesFactoryBean">
        <property name="location" value="classpath:/texts/report_en.properties" />
    </bean>
</beans> 

然后我尝试同时获得两个.properties

public class PropertiesManager {
    public static enum LanguageEnum{es, en}

    @Autowired
    private java.util.Properties properties_es;
    @Autowired
    private java.util.Properties properties_en;

    public String getProperty(LanguageEnum language, String key) {
        switch (language) {
        case es:
            return properties_es.getProperty(key);
        case en:
            return properties_en.getProperty(key);
        default:
            return properties_en.getProperty(key);
        }
    }
}

但 properties_es和properties_en有系统信息，如：{file.encoding.pkg = sun.io，com.sun.enterprise.appname = j2ee，com.sun.aas.useNewClassLoader = true， ...}而不是文件.properties

中定义的信息