对数据库连接信息加解密，配置信息为密文设置在nacos配置中心，spring.prop.key为密钥，加解密使用

配置密文信息可有由密钥key依据加解密方法获得

/**
 * redis配置
 */
@Configuration
@EnableCaching
@AutoConfigureBefore(RedisAutoConfiguration.class)
public class RedisConfig extends CachingConfigurerSupport {

    @Value(value = "${spring.data.redis.host}")
    private String host;
    @Value(value = "${spring.data.redis.password}")
    private String password;
    @Value(value = "${spring.data.redis.port}")
    private int port;
    @Value(value = "${spring.data.redis.database}")
    private int database;
    @Value(value = "${spring.prop.key}")
    private String key;


    @Bean
    public LettuceConnectionFactory lettuceConnectionFactory() {
        RedisStandaloneConfiguration configuration = new RedisStandaloneConfiguration();
        configuration.setHostName(SM4Utils.decryptCbc(StringUtils.stringToHexString(key), host));
        configuration.setPort(26379);
        configuration.setPassword(SM4Utils.decryptCbc(StringUtils.stringToHexString(key), password));
        return new LettuceConnectionFactory(configuration);
    }

    @Bean
    @SuppressWarnings(value = {"unchecked", "rawtypes"})
    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory factory) {
        RedisTemplate<String, Object> template = new RedisTemplate<>();
        template.setConnectionFactory(factory);
        Jackson2JsonRedisSerializer<Object> valueSerializer = new Jackson2JsonRedisSerializer<>(Object.class);
        // 使用StringRedisSerializer来序列化和反序列化redis的key值
        template.setKeySerializer(new StringRedisSerializer());
        template.setValueSerializer(valueSerializer);
        // Hash的key也采用StringRedisSerializer的序列化方式
        template.setHashKeySerializer(new StringRedisSerializer());
        template.setHashValueSerializer(valueSerializer);
        template.afterPropertiesSet();
        return template;
    }

    @Bean
    public RedissonClient redissonClient() {
        Config config = new Config();
         config.setCodec(new JsonJacksonCodec());
        SingleServerConfig singleServerConfig = config.useSingleServer();
        String address = "redis://" + SM4Utils.decryptCbc(StringUtils.stringToHexString(key), host) + ":" + port;
        singleServerConfig.setAddress(address);
        singleServerConfig.setDatabase(database);
        singleServerConfig.setPassword(SM4Utils.decryptCbc(StringUtils.stringToHexString(key), password));
        singleServerConfig.setRetryInterval(10000);
        singleServerConfig.setRetryAttempts(3);
        return Redisson.create(config);
    }
}