意思说的是你的factory-bean指向同一个bean定义，经过查看发现，我的类名和方法名一样（忽略大小写，因为当不指定名字时，默认是首字母小写作为bean的名字）

//
@Service
public class JedisPool {@AutowiredRedisConfig redisConfig;@Beanpublic redis.clients.jedis.JedisPool jedisPool(){JedisPoolConfig jedisPoolConfig=new JedisPoolConfig();jedisPoolConfig.setMaxIdle(redisConfig.getPoolMaxIdle());jedisPoolConfig.setMaxTotal(redisConfig.getPoolMaxTotal());jedisPoolConfig.setMaxWaitMillis(redisConfig.getPoolMaxWait()*1000 );//database表示库的个数redis.clients.jedis.JedisPool jp=new redis.clients.jedis.JedisPool(jedisPoolConfig,redisConfig.getHost(),redisConfig.getPort(),redisConfig.getTimeout()*1000,redisConfig.getPassword(),0);return jp;}
}

@Service和@Bean重复创建了一个名字叫jedisPool的bean，导致出现上述错误
解决：1、类名或方法名修改；
2、在创建bean时指定bean的名称（@Bean（“xxx”））

修改类名后，运行正常。

// An highlighted block
package com.dec14.redis;import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.stereotype.Service;
import redis.clients.jedis.JedisPoolConfig;
@Service
public class JedisPoolFactory {@AutowiredRedisConfig redisConfig;@Beanpublic redis.clients.jedis.JedisPool jedisPool(){JedisPoolConfig jedisPoolConfig=new JedisPoolConfig();jedisPoolConfig.setMaxIdle(redisConfig.getPoolMaxIdle());jedisPoolConfig.setMaxTotal(redisConfig.getPoolMaxTotal());jedisPoolConfig.setMaxWaitMillis(redisConfig.getPoolMaxWait()*1000 );//database表示库的个数redis.clients.jedis.JedisPool jp=new redis.clients.jedis.JedisPool(jedisPoolConfig,redisConfig.getHost(),redisConfig.getPort(),redisConfig.getTimeout()*1000,redisConfig.getPassword(),0);return jp;}
}

2020-12-18 15:44:36.552  INFO 19908 --- [           main] com.dec14.Demo01Application              : Starting Demo01Application using Java 12.0.2 on Fafasir with PID 19908 (D:\java-project\miaosha01\target\classes started by Administrator in D:\java-project\miaosha01)
2020-12-18 15:44:36.553  INFO 19908 --- [           main] com.dec14.Demo01Application              : No active profile set, falling back to default profiles: default
2020-12-18 15:44:37.490  INFO 19908 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8080 (http)
2020-12-18 15:44:37.501  INFO 19908 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2020-12-18 15:44:37.501  INFO 19908 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet engine: [Apache Tomcat/9.0.41]
2020-12-18 15:44:37.586  INFO 19908 --- [           main] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2020-12-18 15:44:37.586  INFO 19908 --- [           main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 988 ms
2020-12-18 15:44:37.867  INFO 19908 --- [           main] o.s.s.concurrent.ThreadPoolTaskExecutor  : Initializing ExecutorService 'applicationTaskExecutor'
2020-12-18 15:44:38.006  INFO 19908 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 8080 (http) with context path ''
2020-12-18 15:44:38.006  INFO 19908 --- [           main] com.dec14.Demo01Application              : Started Demo01Application in 1.733 seconds (JVM running for 2.401)

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fighting！！！！！