springboot代码中如何获取jedisPool的配置参数

最近项目中本地代码需要获取到Jedis配置参数，特意从springboot启动跟踪的整个参数的初始化、赋值过程，特将知识点记录如下。
1.spring-boot-autoconfigure包下面集成了对redis客户端的config类，有Jedis,Lettuce，本次关注的是Jedis。
2.我们找到对应的配置类 JedisConnectionConfiguration，从下图可以看到注解中加入了连接池，和Jedis

@Configuration
@ConditionalOnClass({ GenericObjectPool.class, JedisConnection.class, Jedis.class })
class JedisConnectionConfiguration extends RedisConnectionConfiguration {

3.往下我们找到 createJedisConnectionFactory()方法，改方法完成了redis连接的初始化

private JedisConnectionFactory createJedisConnectionFactory() {
		JedisClientConfiguration clientConfiguration = getJedisClientConfiguration();
		if (getSentinelConfig() != null) {
			return new JedisConnectionFactory(getSentinelConfig(), clientConfiguration);
		}
		if (getClusterConfiguration() != null) {
			return new JedisConnectionFactory(getClusterConfiguration(), clientConfiguration);
		}
		return new JedisConnectionFactory(getStandaloneConfig(), clientConfiguration);
	}

4.一路跟踪方法调用 getJedisClientConfiguration–>applyPooling()—>jedisPoolConfig()

private JedisPoolConfig jedisPoolConfig(RedisProperties.Pool pool) {
		JedisPoolConfig config = new JedisPoolConfig();
		config.setMaxTotal(pool.getMaxActive());
		config.setMaxIdle(pool.getMaxIdle());
		config.setMinIdle(pool.getMinIdle());
		if (pool.getTimeBetweenEvictionRuns() != null) {
			config.setTimeBetweenEvictionRunsMillis(pool.getTimeBetweenEvictionRuns().toMillis());
		}
		if (pool.getMaxWait() != null) {
			config.setMaxWaitMillis(pool.getMaxWait().toMillis());
		}
		return config;
	}

5.在jedisPoolConfig()方法中完成了对配置参数的初始哈，方法入参RedisProperties类就保存了redis客户端的配置参数信息，所以我们只要获取到该类就能获取到jedisPool的配置参数了

@Component
public class RedisUtil {
    @Autowired
    private RedisProperties properties;
    
    public Map<String,String> getJedisPoolProperties(){
        Map<String,String> map = new HashMap<>();
        map.put("maxIdle",String.valueOf(properties.getJedis().getPool().getMaxIdle()));
        map.put("maxActive",String.valueOf(properties.getJedis().getPool().getMaxActive()));
        map.put("maxWait",String.valueOf(properties.getJedis().getPool().getMaxWait()));
        map.put("mainIdle",String.valueOf(properties.getJedis().getPool().getMinIdle()));
        return map;
    }
}

6.到此，我们本次获取jedisPool配置参数就大功告成了。