大橙子网站建设,新征程启航
为企业提供网站建设、域名注册、服务器等服务
遵循SpringBoot三板斧
平顺网站制作公司哪家好,找创新互联!从网页设计、网站建设、微信开发、APP开发、成都响应式网站建设公司等网站项目制作,到程序开发,运营维护。创新互联从2013年成立到现在10年的时间,我们拥有了丰富的建站经验和运维经验,来保证我们的工作的顺利进行。专注于网站建设就选创新互联。
第一步加依赖
org.springframework.boot spring-boot-starter-data-redis org.apache.commons commons-pool2 2.6.0
第二步写注解
@EnableCaching//开启缓存支持
第三步写配置
spring: redis: database: 0 host: 192.168.1.11 port: 6379 password: timeout: 600 lettuce: pool: max-active: 50 max-wait: -1 max-idle: 8 min-idle: 0
编写Redis配置类
/** * @Author: zc * @Date: 2019/11/3 14:12 * @Description: SpringBoot2.0 Redis缓存配置 * @EnableCaching:开启缓存支持 */ @Slf4j @Configuration @EnableCaching public class RedisConfig extends CachingConfigurerSupport { @Value("${sys.dataCaching.expireTime:0}") private int expireTime; @Resource private LettuceConnectionFactory lettuceConnectionFactory; @Override @Bean public KeyGenerator keyGenerator() {//设置自定义key{ClassName + methodName + params} return (target, method, params) -> { StringBuilder sb = new StringBuilder(); sb.append(target.getClass().getName()); sb.append(",Method:"); sb.append(method.getName()); sb.append(",Params["); for (int i = 0; i < params.length; i++) { sb.append(params[i].toString()); if (i != (params.length - 1)) { sb.append(","); } } sb.append("]"); log.debug("Data Caching Redis Key : {}", sb.toString()); return sb.toString(); }; } //自定义keyGenerator,Key生成器 @Bean public KeyGenerator updateByIdkeyGenerator() { return (target, method, params) -> { StringBuilder sb = new StringBuilder(); sb.append(target.getClass().getName()); sb.append(",Method:"); sb.append("getById"); sb.append(",Params["); try { Field id = params[0].getClass().getDeclaredField("id"); id.setAccessible(true); sb.append(id.get(params[0]).toString()); } catch (IllegalAccessException e) { e.printStackTrace(); } catch (NoSuchFieldException e) { e.printStackTrace(); } sb.append("]"); log.debug("Data Caching Redis Key : {}", sb.toString()); return sb.toString(); }; } //自定义keyGenerator,Key生成器 @Bean public KeyGenerator deleteByIdkeyGenerator() { return (target, method, params) -> { StringBuilder sb = new StringBuilder(); sb.append(target.getClass().getName()); sb.append(",Method:"); sb.append("getById"); sb.append(",Params["); for (int i = 0; i < params.length; i++) { sb.append(params[i].toString()); if (i != (params.length - 1)) { sb.append(","); } } sb.append("]"); log.debug("Data Caching Redis Key : {}", sb.toString()); return sb.toString(); }; } @Bean public CacheManager cacheManager(RedisConnectionFactory redisConnectionFactory) { RedisCacheConfiguration redisCacheConfiguration = RedisCacheConfiguration.defaultCacheConfig(); //设置缓存过期时间 if (expireTime > 0) { log.info("Redis 缓存过期时间 : {}", expireTime); //设置缓存有效期 秒 redisCacheConfiguration.entryTtl(Duration.ofSeconds(expireTime)); } else { log.info("Redis 未设置缓存过期时间"); } return RedisCacheManager .builder(RedisCacheWriter.nonLockingRedisCacheWriter(redisConnectionFactory)) .cacheDefaults(redisCacheConfiguration).build(); } @Bean public RedisTemplateredisTemplate(RedisConnectionFactory factory) {//创建RedisTemplate // 设置序列化 Jackson2JsonRedisSerializer
如何使用查询缓存
@CacheConfig(cacheNames = "demoDao") @Component public class DemoDao implements IDemoDAO<> { @Autowired DemoMapper mapper; //用默认配置的keyGenerator @Cacheable @Override public Demo getById(Integer id) { return mapper.getById(id); } //使用配置的keyGenerator,清空缓存 @CacheEvict(keyGenerator = "updateByIdkeyGenerator") @Override public int update(T entity) { return mapper.update(entity); } //使用配置的keyGenerator,清空缓存 @CacheEvict(keyGenerator = "deleteByIdkeyGenerator") @Override public int deleteById(Integer id) { return mapper.deleteById(id); } }
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持创新互联。