SpringBoot中Redis双DB

• 第一种实现方式
• • yml
  • configuation
• 第二种实现方式

• redis版本为1.x

spring:
  redis:
    sentinel:
      master: mymaster
      nodes: 192.168.100.111:26379,192.168.100.112:26379,192.168.100.113:36379
    password: 123456
    timeout: 5000
    database: 2
    lettuce:
      pool:
        max-active: 30
        max-wait: 20000
        max-idle: 30
        min-idle: 10
    jedis:
      pool:
        max-active: 30
        max-wait: 20000
        max-idle: 30
        min-idle: 10

    
    //redis配置映射
    @Autowired
    RedisProperties redisProperties;

    //多例连接工厂
    @Bean
    @Scope(scopeName = "prototype")
    public JedisConnectionFactory jedisConnectionFactory() {

        RedisSentinelConfiguration redisSentinelConfiguration = new RedisSentinelConfiguration();
        List nodes = new ArrayList<>();
        for (String node : redisProperties.getSentinel().getNodes()) {
            try {
                String[] parts = StringUtils.split(node, ":");
                Assert.state(parts.length == 2, "Must be defined as 'host:port'");
                nodes.add(new RedisNode(parts[0], Integer.parseInt(parts[1])));
            }
            catch (RuntimeException ex) {
                throw new IllegalStateException("Invalid redis sentinel property '" + node + "'", ex);
            }
        }
        redisSentinelConfiguration.setSentinels(nodes);
        redisSentinelConfiguration.setMaster(redisProperties.getSentinel().getMaster());
        redisSentinelConfiguration.setDatabase(redisProperties.getDatabase());
        redisSentinelConfiguration.setPassword(redisProperties.getPassword());
        redisSentinelConfiguration.setSentinelPassword(redisProperties.getPassword());

        return new JedisConnectionFactory(redisSentinelConfiguration);
    }

    
    @Bean
    public RedisTemplate redisTemplate() {
        RedisTemplate redisTemplate = new RedisTemplate<>();
        JedisConnectionFactory jedisConnectionFactory = jedisConnectionFactory();
        redisTemplate.setConnectionFactory(jedisConnectionFactory);

        StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
        redisTemplate.setKeySerializer(stringRedisSerializer);
        redisTemplate.setValueSerializer(stringRedisSerializer);
        redisTemplate.setHashKeySerializer(stringRedisSerializer);
        redisTemplate.setHashValueSerializer(stringRedisSerializer);
        redisTemplate.afterPropertiesSet();

        return redisTemplate;
    }

    
    @Bean("redisTemplateOfDb0")
    public RedisTemplate redisTemplateOfDb0() {
        RedisTemplate redisTemplate = new RedisTemplate<>();
        JedisConnectionFactory jedisConnectionFactory = jedisConnectionFactory();
        //此方法已过时
        jedisConnectionFactory.setDatabase(0);
        redisTemplate.setConnectionFactory(jedisConnectionFactory);

        StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
        redisTemplate.setKeySerializer(stringRedisSerializer);
        redisTemplate.setValueSerializer(stringRedisSerializer);
        redisTemplate.setHashKeySerializer(stringRedisSerializer);
        redisTemplate.setHashValueSerializer(stringRedisSerializer);
        redisTemplate.afterPropertiesSet();
        return redisTemplate;
    }

• 通过jedisConnectionFactory指定数据库的方法在1.x版本已过时，有无替代？
• 这样写在分布式环境中是否有性能问题？