Question

据我所知，spring boot和spring session为我们提供了一站式autoconfig，但是当我的应用程序使用会话redis和app cache redis不是同一个redis服务器时; 我该怎么配置它，非常感谢你的回复！

Answer 1

实际上，默认情况下，spring-session和spring-cache实际上都是使用名为RedisConnectionFactory的{{1}} bean通过spring-boot配置的。有两种方法可以做到这一点。

使connectionFactory使用不同的spring-session bean实例，并保留spring-cache以使用默认的connectionFactory。以下是一个示例解决方案：
```
connectionFactory
```
使@Configuration public class RedisHttpSessionConfig { @Bean StringRedisSerializer stringRedisSerializer() { return new StringRedisSerializer(); } @Bean RedisConnectionFactory redisHttpSessionConnectionFactory() { RedisConnectionFactory redisHttpSessionConnectionFactory = null; // ... add your codes here return redisHttpSessionConnectionFactory; } @Bean public RedisTemplate<Object, Object> sessionRedisTemplate( RedisConnectionFactory redisHttpSessionConnectionFactory) { RedisTemplate<Object, Object> template = new RedisTemplate<Object, Object>(); template.setKeySerializer(new StringRedisSerializer()); template.setHashKeySerializer(new StringRedisSerializer()); template.setValueSerializer(new GenericJackson2JsonRedisSerializer()); template.setDefaultSerializer(GenericJackson2JsonRedisSerializer()); template.setConnectionFactory(redisHttpSessionConnectionFactory); return template; } }使用不同的spring-cache bean实例，并让spring-session使用默认的connectionFactory。以下是一个示例解决方案：
```
connectionFactory
```

Answer 2

标记默认RedisConnectionFactory @Primary

    @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;
    }

如何隔离spring boot app redis和spring boot session global redis

2 个答案: