springboot报错：Could not get a resource from the pool redis.clients.jedis.exceptions.JedisConnection

运行项目时报错：
2022-04-15 19:27:54.052 ERROR 9676 --- [nio-8181-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Filtered request failed.] with root cause   java.net.SocketTimeoutException: connect timed out
   
This application has no explicit mapping for /error, so you are seeing this as a fallback.
Fri Apr 15 19:27:54 CST 2022
There was an unexpected error (type=Internal Server Error, status=500).
Could not get a resource from the pool
redis.clients.jedis.exceptions.JedisConnectionException: Could not get a resource from the pool
	at redis.clients.jedis.util.Pool.getResource(Pool.java:59)
	at redis.clients.jedis.JedisPool.getResource(JedisPool.java:288)

解决方法：
redis没有开启服务，开启redis服务即可

道可道，非常道；名可名，非常名。
无名，天地之始，有名，万物之母。
故常无欲，以观其妙，常有欲，以观其徼。
此两者，同出而异名，同谓之玄，玄之又玄，众妙之门。