配置文件properties读取使用的好方法

    <bean id="placeholderConfig"
          class="com.beikbank.common.utils.PropertyConfigurer">
        <property name="locations">
            <list>
                <value>classpath:jdbc.properties</value>
                <value>classpath:redis.properties</value>
                <value>classpath:SysConfig.properties</value>
            </list>
        </property>
    </bean>

public class PropertyConfigurer extends PropertyPlaceholderConfigurer {

    private static Map<String, String> propertyMap;

    @Override
    protected void processProperties(ConfigurableListableBeanFactory beanFactoryToProcess, Properties props) throws BeansException {
        super.processProperties(beanFactoryToProcess, props);
        propertyMap = new HashMap<>();
        for (Object key : props.keySet()) {
            String keyStr = key.toString();
            String value = props.getProperty(keyStr);
            propertyMap.put(keyStr, value);
        }
    }

    public static String getProperty(String name) {
        return propertyMap.get(name);
    }

    /**
     * 返回propertyMap
     *
     * @return
     */
    public static Map<String, String> getPropertyMap() {
        return propertyMap;
    }
}