读取配置文件 PropertyPlaceholderConfigurer 的配置与使用

public class SpringPropertyConfigurer extends PropertyPlaceholderConfigurer {  

    private static Map<String, String> ctxPropertiesMap;  

    @Override
    protected void processProperties(ConfigurableListableBeanFactory beanFactory,
            Properties props)throws BeansException {  

        super.processProperties(beanFactory, props);  

        ctxPropertiesMap = new HashMap<String, String>();
        for (Object key : props.keySet()) {
            String keyStr = key.toString();
            String value = props.getProperty(keyStr);
            ctxPropertiesMap.put(keyStr, value);
        }
    }  

    //static method for accessing context properties
    public static String getContextProperty(String name) {
        return ctxPropertiesMap.get(name);
    }
}

配置文件：

<!-- 加载PROPERTY配置文件 -->
    <bean id="propertySource" class="com.mediaforce.news.api.utils.SpringPropertyConfigurer">
        <property name="order" value="2" />
        <property name="ignoreUnresolvablePlaceholders" value="true" />
        <property name="fileEncoding">
            <value>UTF-8</value>
        </property>
        <property name="locations">
            <list>
                <value>classpath:message.properties</value>
                <value>classpath:sysconfig.properties</value>
            </list>
        </property>
    </bean>