1. 什么是Redisson

Redisson - 是一个高级的分布式协调Redis客服端，能帮助用户在分布式环境中轻松实现一些Java的对象，Redisson、Jedis、Lettuce 是三个不同的操作 Redis 的客户端，Jedis、Lettuce 的 API 更侧重对 Reids 数据库的 CRUD（增删改查），而 Redisson API 侧重于分布式开发。

 2. 引入依赖

<dependency>
    <groupId>org.redisson</groupId>
    <artifactId>redisson</artifactId>
</dependency>

3. Redisson的config

import org.apache.commons.lang3.StringUtils;
import org.redisson.Redisson;
import org.redisson.api.RedissonClient;
import org.redisson.codec.JsonJacksonCodec;
import org.redisson.config.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.data.redis.RedisProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Import;

@Configuration
@ConditionalOnMissingBean(RedissonClient.class)
@Import(RedissonClientConfig.RedissonConfig.class)
public class RedissonClientConfig {

    private final Config config;

    RedissonClientConfig(Config config) {
        this.config = config;
    }

    @Bean
    public RedissonClient redissonClient() {
        return Redisson.create(config);
    }

    @ConditionalOnMissingBean(Config.class)
    @EnableConfigurationProperties({RedisProperties.class})
    static class RedissonConfig {

        @Autowired
        private RedisProperties redisProperties;

        @Bean
        public Config redissonConfig() {
            Config config = new Config();
            
            //哨兵模式
            if (redisProperties.getSentinel() != null) { //sentinel
                SentinelServersConfig sentinelServersConfig = config.useSentinelServers();
                RedisProperties.Sentinel sentinel = redisProperties.getSentinel();
                sentinelServersConfig.setMasterName(sentinel.getMaster());
                sentinelServersConfig.addSentinelAddress(sentinel.getNodes().toArray(new String[sentinel.getNodes().size()]));
                sentinelServersConfig.setDatabase(redisProperties.getDatabase());
                baseConfig(sentinelServersConfig, redisProperties);
        
            //集群模式
            } else if (redisProperties.getCluster() != null) { //cluster
                ClusterServersConfig clusterServersConfig = config.useClusterServers();
                RedisProperties.Cluster cluster = redisProperties.getCluster();
                clusterServersConfig.addNodeAddress(cluster.getNodes().toArray(new String[cluster.getNodes().size()]));
                clusterServersConfig.setFailedSlaveReconnectionInterval(cluster.getMaxRedirects());
                baseConfig(clusterServersConfig, redisProperties);
    
            //普通模式
            } else { //single server
                SingleServerConfig singleServerConfig = config.useSingleServer();
                // format as redis://127.0.0.1:7181 or rediss://127.0.0.1:7181 for SSL
                String schema = redisProperties.isSsl() ? "rediss://" : "redis://";
                singleServerConfig.setAddress(schema + redisProperties.getHost() + ":" + redisProperties.getPort());
                singleServerConfig.setDatabase(redisProperties.getDatabase());
                baseConfig(singleServerConfig, redisProperties);
            }
            config.setCodec(new JsonJacksonCodec());
            return config;
        }

        private void baseConfig(BaseConfig config, RedisProperties properties) {
            if (!StringUtils.isBlank(properties.getPassword())) {
                config.setPassword(properties.getPassword());
            }
            if (properties.getTimeout() != null) {
                config.setTimeout(Long.valueOf(properties.getTimeout().getSeconds() * 1000).intValue());
            }
            if (!StringUtils.isBlank(properties.getClientName())) {
                config.setClientName(properties.getClientName());
            }
        }
    }

}

4. yml文件中对redis配置

spring:
  redis:
    host: localhost #地址
    port: 6379 #端口号
    password: 'password' #连接密码（默认空）
    database: 2

5. 最后

1. 如果文章中编写不正确或不恰当的地方希望大家指正。