如何隔离spring boot app redis和spring boot session global redis [英] How to isolate spring boot app redis and spring boot session global redis

问题描述

据我所知，spring boot 和 spring session 为我们提供了一站式自动配置，但是当我的应用程序使用会话 redis 和应用程序缓存 redis 时，redis 服务器不是同一个；我该如何配置，非常感谢您的回复！

As I know, spring boot and spring session provided us one-stop autoconfig, but when my app use session redis and app cache redis not same redis server; How can I config it, thank you very much for your reply!

推荐答案

事实上，默认情况下，spring-session 和 spring-cache 实际上都是由 spring-boot 配置的，RedisConnectionFactory bean 命名为connectionFactory.有两种方法可以做到这一点.

Indeed, by default, both spring-session and spring-cache are actually configured by spring-boot with a RedisConnectionFactory bean named as connectionFactory. Two ways to do this.

1. 使 spring-session 使用不同的 connectionFactory bean 实例，并让 spring-cache 使用默认的 connectionFactory.下面是一个示例解决方案:

1. make spring-session to use a different connectionFactory bean instance, and leave spring-cache to use the default connectionFactory. And below is a sample solution:

@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 spring-cache 使用不同的 connectionFactory bean 实例，并让 spring-session 使用默认的 connectionFactory.下面是一个示例解决方案:

make spring-cache to use a different connectionFactory bean instance, and leave spring-session to use the default connectionFactory. And below is a sample solution:

@Configuration
public class RedisCacheConfig {

    @Bean
    StringRedisSerializer stringRedisSerializer() {
        return new StringRedisSerializer();
    }

    @Bean
    RedisConnectionFactory redisCacheConnectionFactory() {
         RedisConnectionFactory redisCacheConnectionFactory = null;
         // ... add your codes here
         return redisCacheConnectionFactory;
    }

    @Bean
    RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory redisCacheConnectionFactory) {
        RedisTemplate<Object, Object> redisTemplate = new RedisTemplate();
        redisTemplate.setConnectionFactory(redisCacheConnectionFactory);
        redisTemplate.setKeySerializer(this.stringRedisSerializer());
        redisTemplate.setValueSerializer(new GenericJackson2JsonRedisSerializer());
        return redisTemplate;
    }

    @Bean(name = "stringRedisTemplate")
    public StringRedisTemplate stringRedisTemplate(RedisConnectionFactory redisCacheConnectionFactory) throws UnknownHostException {
        StringRedisTemplate stringRedisTemplate = new StringRedisTemplate();
        stringRedisTemplate.setConnectionFactory(redisCacheConnectionFactory);
        stringRedisTemplate.setKeySerializer(this.stringRedisSerializer());
        stringRedisTemplate.setValueSerializer(new GenericJackson2JsonRedisSerializer());
        return stringRedisTemplate;
    }

    @Bean
    CacheManager cacheManager(RedisTemplate redisTemplate) {
        RedisCacheManager cacheManager = new RedisCacheManager(redisTemplate);
        cacheManager.setDefaultExpiration(600l);
        cacheManager.setUsePrefix(true);
        return cacheManager;
    }
}

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