Spring Boot 2.0 实践:Redis

本文介绍了如何在Spring Boot 2.0中整合Redis,包括添加Maven依赖,配置application.properties,自定义配置RedisTemplate和RedisCacheConfiguration。通过直接使用注入的redisTemplate进行操作,如opsForValue().set(),或者利用@Cacheable注解实现缓存功能。同时,文章提到,如果需要自定义RedisTemplate的行为或缓存注解的行为,需要相应地配置细节,特别是RedisCacheConfiguration中的序列化设置。

摘要生成于 C知道 ,由 DeepSeek-R1 满血版支持, 前往体验 >

Redis常用cmd:

PS C:\Program Files\Redis> .\redis-cli.exe -h 127.0.0.1 -p 6379 -a 123456
> SELECT 0
> keys *
> type "aaa"
> hkeys "aaa"
> hgetall "aaa"
> get "aaa"

maven依赖:

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>
        
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-pool2</artifactId>
        </dependency>

application.properties:

spring.redis.host=127.0.0.1
spring.redis.port=6379
spring.redis.password=123456
spring.redis.database=2
spring.redis.lettuce.pool.max-active=8
spring.redis.lettuce.pool.max-wait=-1
spring.redis.lettuce.pool.max-idle=8
spring.redis.lettuce.pool.min-idle=0
spring.redis.timeout=3600ms

自定义配置:

@Configuration
@EnableCaching
public class RedisConfig extends CachingConfigurerSupport {

	@Bean
	public RedisTemplate redisTemplate(RedisConnectionFactory redisConnectionFactory) {
		RedisTemplate redisTemplate = new RedisTemplate();
		redisTemplate.setConnectionFactory(redisConnectionFactory);

		Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer<>(
				Object.class);
		ObjectMapper objectMapper = new ObjectMapper();
		objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
		objectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
		jackson2JsonRedisSerializer.setObjectMapper(objectMapper);

		redisTemplate.setKeySerializer(new StringRedisSerializer());
		redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);
		return redisTemplate;
	}

	@Bean
	public RedisCacheConfiguration redisCacheConfiguration() {
		Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer<>(
				Object.class);

		ObjectMapper objectMapper = new ObjectMapper();
		objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
		objectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);

		jackson2JsonRedisSerializer.setObjectMapper(objectMapper);

		RedisCacheConfiguration configuration = RedisCacheConfiguration.defaultCacheConfig();
		configuration = configuration
				.serializeValuesWith(
						RedisSerializationContext.SerializationPair.fromSerializer(jackson2JsonRedisSerializer))
				.entryTtl(Duration.ofDays(30));

		return configuration;
	}
}

用法:

  1. 直接用注入的redisTemplate操作,如opsForValue().set()。此时若要自定义其行为,需要上述配置中的redisTemplate()方法。
  2. 用@Cacheable等注解。此时若要自定义,需要配置上述redisCacheConfiguration()部分。因为注解执行不是直接使用redisTemplate,而是使用RedisCacheConfiguration中CacheManager中的属性,例如序列化。详细可参考:springboot cache缓存注解源码解析
评论
添加红包

请填写红包祝福语或标题

红包个数最小为10个

红包金额最低5元

当前余额3.43前往充值 >
需支付:10.00
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明:

1.余额是钱包充值的虚拟货币,按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载,可以购买VIP、付费专栏及课程。

余额充值