如何隔离spring引导应用程序redis和spring启动会话全局redis

Question

据我所知，spring引导和spring会话为我们提供了一站式的自动配置，但是当我的应用程序使用会话redis和app缓存redis服务器时，我如何配置它，非常感谢您的回复！

Answer 1

实际上，在默认情况下，spring会话和spring缓存实际上都是使用名为RedisConnectionFactory bean的connectionFactory来配置的。这有两种方法。

1. 使spring-session使用不同的connectionFactory bean实例，并保留spring缓存以使用默认的connectionFactory。下面是一个示例解决方案： @Configuration公共类RedisHttpSessionConfig { @Bean StringRedisSerializer stringRedisSerializer() {返回新的StringRedisSerializer()；} @Bean RedisConnectionFactory redisHttpSessionConnectionFactory() { RedisConnectionFactory redisHttpSessionConnectionFactory = null；// .在这里添加代码返回redisHttpSessionConnectionFactory；} @Bean公共RedisTemplate sessionRedisTemplate( RedisConnectionFactory redisHttpSessionConnectionFactory) { RedisTemplate模板=新RedisTemplate()；template.setKeySerializer(新StringRedisSerializer())；template.setHashKeySerializer(新StringRedisSerializer())；template.setValueSerializer(新StringRedisSerializer())；template.setValueSerializer(新StringRedisSerializer())；}}
2. 使spring-cache使用不同的connectionFactory bean实例，并保留spring会话以使用默认的connectionFactory。下面是一个示例解决方案： @Configuration公共类RedisCacheConfig { @Bean StringRedisSerializer stringRedisSerializer() {返回新的StringRedisSerializer()；} @Bean RedisConnectionFactory redisCacheConnectionFactory() { RedisConnectionFactory redisCacheConnectionFactory = null；// .在这里添加代码返回redisCacheConnectionFactory；} @Bean RedisTemplate redisTemplate(RedisConnectionFactory redisCacheConnectionFactory) { RedisTemplate redisTemplate =新RedisTemplate()；} @Bean(name = " StringRedisTemplate ")公共stringRedisTemplate.setKeySerializer(this.stringRedisSerializer())；stringRedisTemplate(RedisConnectionFactory redisCacheConnectionFactory)抛出UnknownHostException { stringRedisTemplate StringRedisTemplate =新StringRedisTemplate()；返回stringRedisTemplate(新GenericJackson2JsonRedisSerializer())；}Bean CacheManager cacheManager(RedisTemplate cacheManager CacheManager){redisTemplate=新()；(600 L)；cacheManager.setUsePrefix(true)；返回cacheManager；}

Answer 2

标记默认的RedisConnectionFactory @主

    @Bean
    @Primary
    public RedisConnectionFactory redisConnectionFactory(RedisProperties properties) {
        return redisConnectionFactory(redisProperties);
    }

并标记会话RedisConnectionFactory @SpringSessionRedisConnectionFactory

    @Bean
    @SpringSessionRedisConnectionFactory
    public RedisConnectionFactory springSessionRedisConnectionFactory() {
        return redisConnectionFactory(...);
    }

redisConnectionFactory()配置RedisConnectionFactory。例如：

private static RedisConnectionFactory redisConnectionFactory(RedisProperties redisProperties, boolean afterPropertiesSet) {
        RedisStandaloneConfiguration redisStandaloneConfiguration = new RedisStandaloneConfiguration();
        redisStandaloneConfiguration.setHostName(redisProperties.getHost());
        redisStandaloneConfiguration.setPassword(RedisPassword.of(redisProperties.getPassword()));
        redisStandaloneConfiguration.setDatabase(redisProperties.getDatabase());
        redisStandaloneConfiguration.setPort(redisProperties.getPort());

        GenericObjectPoolConfig genericObjectPoolConfig = new GenericObjectPoolConfig();
        genericObjectPoolConfig.setMaxIdle(redisProperties.getLettuce().getPool().getMaxIdle());
        genericObjectPoolConfig.setMinIdle(redisProperties.getLettuce().getPool().getMinIdle());
        genericObjectPoolConfig.setMaxTotal(redisProperties.getLettuce().getPool().getMaxActive());
        genericObjectPoolConfig.setMaxWaitMillis(redisProperties.getLettuce().getPool().getMaxWait().toMillis());
        genericObjectPoolConfig.setTestOnBorrow(true);
        genericObjectPoolConfig.setTestOnReturn(true);

        LettuceConnectionFactory lettuceConnectionFactory = new LettuceConnectionFactory(redisStandaloneConfiguration,
                LettucePoolingClientConfiguration.builder().commandTimeout(redisProperties.getTimeout()).poolConfig(genericObjectPoolConfig).build());
        if (afterPropertiesSet) {
            lettuceConnectionFactory.afterPropertiesSet();
        }
        return lettuceConnectionFactory;
    }