How can the redisTemplate access the URL of redis?

RedisTemplate is a template class provided by Spring to operate on Redis, it does not directly provide a method to retrieve the Redis URL. To obtain the Redis URL, you can do so through the RedisConnectionFactory.

You can obtain the URL of Redis by following these steps:

1. Retrieve the connection factory from the Redis template.
2. Return the hostname
3. retrieve the port number

if (connectionFactory instanceof JedisConnectionFactory) {
    JedisConnectionFactory jedisConnectionFactory = (JedisConnectionFactory) connectionFactory;
    String url = "redis://" + jedisConnectionFactory.getHostName() + ":" + jedisConnectionFactory.getPort();
    System.out.println("Redis URL: " + url);
}

1. return the host name
2. obtain the port number

if (connectionFactory instanceof LettuceConnectionFactory) {
    LettuceConnectionFactory lettuceConnectionFactory = (LettuceConnectionFactory) connectionFactory;
    RedisURI redisURI = lettuceConnectionFactory.getStandaloneConfiguration().getRedisUri();
    String url = "redis://" + redisURI.getHost() + ":" + redisURI.getPort();
    System.out.println("Redis URL: " + url);
}

By using the above code, you can obtain the URL for Redis. It is important to note that the URL for connecting to Redis may vary depending on specific configurations, such as passwords, databases, and other parameters. In actual applications, other connection parameters can also be retrieved based on specific requirements.