Java-加载配置文件到内存

	//声明变量
    private static Map cityCodeNameMap = new HashMap<>();
	//配置文件路径config目录下：
    private static final String LAND_35_CITY_PATH = "\cfgfiles\land35City.properties";
	//静态代码块进行加载
    static {
        PropertiesLoader loader = new PropertiesLoader(LAND_35_CITY_PATH);
        cityCodeNameMap = ((Map) loader.getProperties());
    }