Use RedisProtocol , no password access is currently supported.

expect： <dubbo:reference id="cache" interface="com.foo.CacheService" url="redis://username:password@127.0.0.1:6379?db.index=1" p:set="putFoo" p:get="getFoo" p:delete="removeFoo" />

ps. username has no effect on redis, just fill it in. password is a must, db.index defaults to 0.