这是我过去使用过的一段代码-可以适应您的示例：
public enum Configuration { PROPERTY1("property1.name", "default_value_1"), PROPERTY2("property2.name", "default_value_2"); private final String key; private String defaultValue; Configuration(String key) { this(key, NA); } Configuration(String key, String defaultValue) { this.key = key; this.defaultValue = defaultValue; } private final static Logger logger = LoggerFactory.getLogger(Configuration.class); private final static String NA = "n.a."; private final static String CONFIG_FILE = "properties/config.properties"; private final static String NOT_A_VALID_KEY = "Not a valid property key"; private final static Map<Configuration, String> configuration = new EnumMap<>(Configuration.class); static { readConfigurationFrom(CONFIG_FILE); } private static void readConfigurationFrom(String fileName) { logger.info("Reading resource: {}", fileName); try (InputStream resource = Configuration.class.getClassLoader().getResourceAsStream(fileName);) { Properties properties = new Properties(); properties.load(resource); //throws a NPE if resource not founds for (String key : properties.stringPropertyNames()) { configuration.put(getConfigurationKey(key), properties.getProperty(key)); } } catch (IllegalArgumentException | IOException | NullPointerException e) { logger.error("Error while reading the properties file {}", fileName, e); populateDefaultValues(); } } private static Configuration getConfigurationKey(String key) { for (Configuration c : values()) { if (c.key.equals(key)) { return c; } } throw new IllegalArgumentException(NOT_A_VALID_KEY + ": " + key); } private static void populateDefaultValues() { for (Configuration c : values()) { configuration.put(c, c.defaultValue); } } public String get() { return configuration.get(this); }}
