针对指定的一些类打印的写法，这个不是很通用，不过还可以了

    1. @NoArgsConstructor(access = AccessLevel.PRIVATE)
    2. @Slf4j
    3. public final class ConfigurationLogger {
    5.     /**
    6.      * Log rule configuration.
    7.      *
    8.      * @param ruleConfiguration rule configuration
    9.      */
    10.     public static void log(final RuleConfiguration ruleConfiguration) {
    11.         if (null == ruleConfiguration) {
    12.             return;
    13.         }
    14.         if (ruleConfiguration instanceof ShardingRuleConfiguration) {
    15.             log((ShardingRuleConfiguration) ruleConfiguration);
    16.         } else if (ruleConfiguration instanceof MasterSlaveRuleConfiguration) {
    17.             log((MasterSlaveRuleConfiguration) ruleConfiguration);
    18.         } else if (ruleConfiguration instanceof EncryptRuleConfiguration) {
    19.             log((EncryptRuleConfiguration) ruleConfiguration);
    20.         }
    21.     }
    23.     private static void log(final ShardingRuleConfiguration shardingRuleConfiguration) {
    24.         if (null != shardingRuleConfiguration) {
    25.             log(shardingRuleConfiguration.getClass().getSimpleName(),
    26.                 YamlEngine.marshal(new ShardingRuleConfigurationYamlSwapper().swap(shardingRuleConfiguration), ShardingTupleProcessorFactory.newInstance()));
    27.         }
    28.     }
    30.     private static void log(final MasterSlaveRuleConfiguration masterSlaveRuleConfiguration) {
    31.         if (null != masterSlaveRuleConfiguration) {
    32.             log(masterSlaveRuleConfiguration.getClass().getSimpleName(), YamlEngine.marshal(new MasterSlaveRuleConfigurationYamlSwapper().swap(masterSlaveRuleConfiguration)));
    33.         }
    34.     }
    36.     private static void log(final EncryptRuleConfiguration encryptRuleConfiguration) {
    37.         if (null != encryptRuleConfiguration) {
    38.             log(encryptRuleConfiguration.getClass().getSimpleName(), YamlEngine.marshal(new EncryptRuleConfigurationYamlSwapper().swap(encryptRuleConfiguration)));
    39.         }
    40.     }
    42.     /**
    43.      * Log authentication configuration.
    44.      *
    45.      * @param authenticationConfiguration authentication configuration
    46.      */
    47.     public static void log(final Authentication authenticationConfiguration) {
    48.         if (null != authenticationConfiguration) {
    49.             log(authenticationConfiguration.getClass().getSimpleName(), YamlEngine.marshal(new AuthenticationYamlSwapper().swap(authenticationConfiguration)));
    50.         }
    51.     }
    53.     /**
    54.      * Log properties.
    55.      *
    56.      * @param properties properties
    57.      */
    58.     public static void log(final Properties properties) {
    59.         if (null != properties) {
    60.             log(properties.getClass().getSimpleName(), YamlEngine.marshal(properties));
    61.         }
    62.     }
    64.     private static void log(final String type, final String logContent) {
    65.         log.info("{}:\n{}", type, logContent);
    66.     }
    67. }