【Java】java|CacheManager|redisCacheManager

一、说明

        1、查询增加缓存，使用@Cacheable注解

        2、项目中已经用到了ehcache，现在需求是两个都用

二、备份配置 1、redisConfig增加代码 @Bean("redisCacheManage") @Primary public CacheManager redisCacheManager(RedisConnectionFactory factory) { Map<String, RedisCacheConfiguration> configurationMap = MapUtil.newHashMap(); RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig() .entryTtl(Duration.ofMinutes(60)) .serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(keySerializer())) .serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(valueSerializer())) .disableCachingNullValues(); return RedisCacheManager.builder(factory) .initialCacheNames(configurationMap.keySet()) .withInitialCacheConfigurations(configurationMap) .cacheDefaults(config) .build(); } private RedisSerializer<String> keySerializer() { return new StringRedisSerializer(); } private RedisSerializer<Object> valueSerializer() { Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer<>(Object.class); ObjectMapper objectMapper = new ObjectMapper(); objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY); // 此项必须配置，否则如果序列化的对象里边还有对象，会报如下错误： // java.lang.ClassCastException: java.util.LinkedHashMap cannot be cast to XXX objectMapper.activateDefaultTyping( objectMapper.getPolymorphicTypeValidator(), ObjectMapper.DefaultTyping.NON_FINAL, JsonTypeInfo.As.PROPERTY); // 旧版写法： // objectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL, JsonTypeInfo.As.PROPERTY); jackson2JsonRedisSerializer.setObjectMapper(objectMapper); return jackson2JsonRedisSerializer; } 2、直接使用

1）缓存

@Cacheable(key ="'method_' + #tenantId + '_' + #bo.toString()", unless = "#result == null", cacheManager = "redisCacheManage", cacheNames = "api")

说明1：cacheNames其实是个前缀，也可以理解成分组的概念；方便手动删除时，根据前缀删除

2）示例截图

3）redis存储结果截图

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