springboot integration redis
need to introduce
Official propulsion lettuce connection pool, Lettuce connection is based Netty, the connection instance (StatefulRedisConnection) between multiple threads can concurrently access, should be thread-safe StatefulRedisConnection
@Configuration
public class EhcacheConfig {
public interface CacheManagerNames {
String REDIS_CACHE_MANAGER = "redisCacheManager";
String EHCACHE_CACHE_MANAGER = "ehCacheManager";
}
@Bean(name = CacheManagerNames.REDIS_CACHE_MANAGER)
public RedisCacheManager redisCacheManager(RedisConnectionFactory factory) {
FastJsonRedisSerializer<Object> fastJsonRedisSerializer = new FastJsonRedisSerializer<>(Object.class);
RedisCacheConfiguration configuration = RedisCacheConfiguration.defaultCacheConfig();
configuration = configuration.serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(fastJsonRedisSerializer)).entryTtl(Duration.ofDays(30));
return RedisCacheManager
.builder(RedisCacheWriter.nonLockingRedisCacheWriter(factory))
.cacheDefaults(configuration).build();
}
@Bean
public EhCacheManagerFactoryBean cacheManagerFactoryBean(){
EhCacheManagerFactoryBean bean = new EhCacheManagerFactoryBean();
bean.setConfigLocation(new ClassPathResource("ehcache.xml"));
bean.setShared(true);
return bean;
}
/**
* @Description @Primary 设置默认加载manager
* @param bean
* @return org.springframework.cache.ehcache.EhCacheCacheManager
* @date 2019/5/31 4:38 PM
* @auther lixin
*/
@Bean(name = CacheManagerNames.EHCACHE_CACHE_MANAGER)
@Primary
public EhCacheCacheManager ehCacheCacheManager(EhCacheManagerFactoryBean bean){
return new EhCacheCacheManager(bean.getObject());
}
/**
* @Description 自定义缓存 key规则
* @return org.springframework.cache.interceptor.KeyGenerator
* @date 2019/5/31 4:38 PM
* @auther lixin
*/
@Bean
public KeyGenerator keyGenerator() {
return (target, method, params) -> {
StringBuilder sb = new StringBuilder();
sb.append(target.getClass().getName());
sb.append (method.getName ());
for (Object obj: params) {
// Since the parameters may be different, hashCode certainly not the same, the cache key need is not the same
sb.append (JSON.toJSONString (obj) .hashCode ());
}
return sb.toString ();
};
}
/ **
* set the default expiration time redis data, the default one day
* provided @cacheable serialization
* @return
* /
@Bean
public redisCacheConfiguration redisCacheConfiguration () {
FastJsonRedisSerializer <Object> = new new fastJsonRedisSerializer fastJsonRedisSerializer <> (Object.class);
RedisCacheConfiguration RedisCacheConfiguration.defaultCacheConfig Configuration = ();
configuration = configuration.serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(fastJsonRedisSerializer)).entryTtl(Duration.ofDays(1));
return configuration;
}
}
序列化 需要自定义
FastJsonRedisSerializer class
public class FastJsonRedisSerializer<T> implements RedisSerializer<T> {
public static final Charset DEFAULT_CHARSET = Charset.forName("UTF-8");
private Class<T> clazz;
public FastJsonRedisSerializer(Class<T> clazz) {
super();
this.clazz = clazz;
}
@Override
public byte[] serialize(T t) throws SerializationException {
if (t == null) {
return new byte[0];
}
return JSON.toJSONString(t, SerializerFeature.WriteClassName).getBytes(DEFAULT_CHARSET);
}
@Override
public T deserialize(byte[] bytes) throws SerializationException {
if (bytes == null || bytes.length <= 0) {
return null;
}
String str = new String(bytes, DEFAULT_CHARSET);
return (T) JSON.parseObject(str, clazz);
}
}