Spring 整合Redis

1.配置

application.yml
spring:
application:
name: meter-highway
profiles:
active: druid,mongodb,dubbo,rabbitmq,redis

application-redis.yml
spring:
redis:
database: 9
host: 192.168.13.146
port: 6379
password: Luban376
timeout: 2000

2.依赖

org.springframework.boot
spring-boot-starter-data-redis

org.springframework.boot
spring-boot-starter-cache

3.config Bean

@Configuration
public class RedisConfig extends CachingConfigurerSupport {

@Bean
public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
RedisTemplate<String, Object> template = new RedisTemplate<>();
template.setConnectionFactory(redisConnectionFactory);

RedisSerializer stringRedisSerializer = new StringRedisSerializer();
GenericJackson2JsonRedisSerializer valueSerializer = new GenericJackson2JsonRedisSerializer();
template.setKeySerializer(stringRedisSerializer);
template.setHashKeySerializer(stringRedisSerializer);
template.setValueSerializer(valueSerializer);
template.setHashValueSerializer(valueSerializer);
return template;
}
private static String PREFIX = "METER::";
@Bean
public CacheManager cacheManager(RedisConnectionFactory factory) {
RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig()
.prefixKeysWith(PREFIX)
.entryTtl(Duration.ofSeconds(2*60))//过期超时时间 2分钟
.disableCachingNullValues();

return new MeterCacheManager(RedisCacheWriter.nonLockingRedisCacheWriter(factory),config);
}

}

public class MeterCacheManager extends RedisCacheManager {

public MeterCacheManager(RedisCacheWriter cacheWriter, RedisCacheConfiguration defaultCacheConfiguration) {
super(cacheWriter, defaultCacheConfiguration);
}

@Override
protected RedisCache createRedisCache(String name, RedisCacheConfiguration cacheConfig) {
if(!StringUtils.isEmpty(name) && name.contains("#")) {//#数字是秒
String numStr = name.split("#")[1];
if(StringUtils.isNumeric(numStr)) {
return super.createRedisCache(name, cacheConfig.entryTtl(Duration.ofSeconds(Integer.parseInt(numStr))));
}
}
return super.createRedisCache(name, cacheConfig);
}
}