Shulou(Shulou.com)06/02 Report--

Today, I will talk to you about how to configure a single point of Redis cache in SpringBoot. Many people may not know much about it. In order to make you understand better, the editor has summarized the following for you. I hope you can get something according to this article.

Import com.fasterxml.jackson.annotation.JsonAutoDetect;import com.fasterxml.jackson.annotation.PropertyAccessor;import com.fasterxml.jackson.databind.ObjectMapper;import org.springframework.cache.CacheManager;import org.springframework.cache.annotation.CachingConfigurerSupport;import org.springframework.cache.annotation.EnableCaching;import org.springframework.cache.interceptor.KeyGenerator;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import org.springframework.data.redis.cache.RedisCacheManager;import org.springframework.data.redis.connection.RedisConnectionFactory Import org.springframework.data.redis.core.RedisTemplate;import org.springframework.data.redis.core.StringRedisTemplate;import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;import java.lang.reflect.Method;/** * redis cache configuration; *

* Note: RedisCacheConfig does not have to inherit here: CachingConfigurerSupport, that is, a normal Class is fine. *

* the main thing here is that we need to re-implement the generation strategy of key. As long as we modify the KeyGenerator here, other locations will take effect without modification. *

* if you usually use a normal class, you need to specify the name of KeyGenerator when using @ Cacheable; this is troublesome to encode. * * @ create 2017-12-13 12:45 * * / @ Configuration@EnableCaching// enables caching, which is important; public class RedisCacheConfig extends CachingConfigurerSupport {/ * cache manager. * * @ param redisTemplate * @ return * / @ Bean public CacheManager cacheManager (RedisTemplate redisTemplate) {RedisCacheManager cacheManager = new RedisCacheManager (redisTemplate); / / set cache expiration time cacheManager.setDefaultExpiration (10000); return cacheManager;} / * redis template operation class, similar to a class of jdbcTemplate;

* although CacheManager can also obtain Cache objects, it is not so flexible to operate. *

* here under the extension: RedisTemplate this class is not very easy to operate, we can extend one of our *

* your own cache class, such as RedisStorage class; * * @ param factory: injected via Spring, with parameters configured in application.properties * @ return * / @ Bean public RedisTemplate redisTemplate (RedisConnectionFactory factory) {StringRedisTemplate template = new StringRedisTemplate (factory); setSerializer (template); / / set the serialization tool template.afterPropertiesSet (); return template;} private void setSerializer (StringRedisTemplate template) {Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer (Object.class); ObjectMapper om = new ObjectMapper () Om.setVisibility (PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY); om.enableDefaultTyping (ObjectMapper.DefaultTyping.NON_FINAL); jackson2JsonRedisSerializer.setObjectMapper (om); template.setValueSerializer (jackson2JsonRedisSerializer);} / * * Custom key. * this method will generate a unique key based on the class name + method name + the values of all parameters, even if the value attribute in @ Cacheable is the same, the key will be different. * / @ Override public KeyGenerator keyGenerator () {return new KeyGenerator () {@ Override public Object generate (Object o, Method method, Object...) Objects) {StringBuilder sb = new StringBuilder (); sb.append (o.getClass (). GetName ()); sb.append (method.getName ()); for (Object obj: objects) {sb.append (obj.toString ());} return sb.toString () }};} # REDIS (RedisProperties) basic redis configuration # database namespring.redis.database=0# server host1spring.redis.host=127.0.0.1# server password#spring.redis.password=#connection portspring.redis.port=6379# pool settings... spring.redis.pool.max-idle=8spring.redis.pool.min-idle=0spring.redis.pool. After reading the above content, max-active=8spring.redis.pool.max-wait=-1# name of Redis server#spring.redis.sentinel.master=# comma-separated list of host:port pairs#spring.redis.sentinel.nodes= Do you have any further understanding of how to configure a single point of Redis cache in SpringBoot? If you want to know more knowledge or related content, please follow the industry information channel, thank you for your support.

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