RedisTemplate 怎么获取到链接信息？怎么获取到所有key？怎么获取指定key?

获取Redis的链接信息：

(RedisTemplate<String, ?> redisTemplate) {
    RedisConnectionFactory connectionFactory = redisTemplate.getConnectionFactory();

    (!(connectionFactory LettuceConnectionFactory)) {
        System..println();
        ;
    }

    LettuceConnectionFactory lettuceConnectionFactory = (LettuceConnectionFactory) connectionFactory;

    RedisConnection connection = connectionFactory.getConnection();

    (connection == || connection.isClosed()) {
        System..println();
    } {
        System..println();

        String host = lettuceConnectionFactory.getHostName();
        port = lettuceConnectionFactory.getPort();

        System..println(+ host);
        System..println(+ port);

        System..println(+ connection.info());
    }
}

获取指定的key:

Set<String> (RedisTemplate<String, ?> redisTemplate) {
    ScanOptions scanOptions = ScanOptions.().match().count().build();

    Set<String> keys = redisTemplate.execute(connection -> {
        Set<[]> keysBytes = connection.keys(.getBytes());
        keysBytes.stream()
                .map(String::)
                .collect(Collectors.());
    }, );

    keys;
}

获取所有key:

Set<String> (RedisTemplate<String, ?> redisTemplate,String hashKey) {
    HashOperations<String, String, Object> hashOperations = redisTemplate.opsForHash();
    hashOperations.keys(hashKey);
}