springboot整合redis

最新推荐文章于 2025-04-18 14:56:33 发布

qiuxiaoning2019

最新推荐文章于 2025-04-18 14:56:33 发布

阅读量130

点赞数

分类专栏： redis 文章标签： redis java 缓存 spring boot

本文链接：https://blog.youkuaiyun.com/qiuxiaoning2020/article/details/119681015

版权

redis 专栏收录该内容

1 篇文章

订阅专栏

本文介绍了如何在SpringBoot项目中整合Redis作为缓存，包括引入相关starter、配置文件设置、连接Redis、配置SpringCache及自定义序列化方式，以及在业务方法上使用@Cacheable注解和通过控制器测试缓存效果。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

springboot整合redis

引入redis和SpringCache的starter

  <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>io.lettuce</groupId>
                    <artifactId>lettuce-core</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-cache</artifactId>
        </dependency>

在application.properties中指定缓存类型为redis

spring.cache.type=redis
spring.cache.redis.time-to-live=3600000
spring.cache.redis.use-key-prefix=true
#是否缓存空值，防止缓存穿透
spring.cache.redis.cache-null-values=true

在application.yml中连接redis

spring:
	 redis:
	      host: 192.168.56.101
	      port: 6379

编写SpringCache的配置类（默认使用jdk进行序列化（可读性差），默认ttl为-1永不过期，自定义序列化方式需要编写配置类），并在配置类上标注相关注解

@EnableConfigurationProperties(CacheProperties.class)
@EnableCaching
@Configuration
public class MyCacheConfig {

    @Bean
    public RedisCacheConfiguration redisCacheConfiguration(CacheProperties cacheProperties) {

        RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig();
        config = config.serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer()));
        config = config.serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(new GenericJackson2JsonRedisSerializer()));

        CacheProperties.Redis redisProperties = cacheProperties.getRedis();
        //指定缓存序列化方式为json
        //设置配置文件中的各项配置，如过期时间
        if (redisProperties.getTimeToLive() != null) {
            config = config.entryTtl(redisProperties.getTimeToLive());
        }

        if (redisProperties.getKeyPrefix() != null) {
            config = config.prefixKeysWith(redisProperties.getKeyPrefix());
        }
        if (!redisProperties.isCacheNullValues()) {
            config = config.disableCachingNullValues();
        }
        if (!redisProperties.isUseKeyPrefix()) {
            config = config.disableKeyPrefix();
        }
        return config;
    }
}

在业务方法上标注@Cacheable注解

 @Cacheable(value = {"voList"}, key = "#root.method.name", sync = true)
    @Override
    public List<EmployeeVo> getList() {
        List<EmployeeEntity> employeeList = employeeDao.selectList(null);
        List<EmployeeVo> voList = new ArrayList<>();
        if (null != employeeList && employeeList.size() > 0) {
            for (EmployeeEntity employee : employeeList) {
                EmployeeVo employeeVo = new EmployeeVo();
                BeanUtils.copyProperties(employee, employeeVo);
                DepartEntity depart = departDao.selectById(employee.getDepid());
                employeeVo.setDepname(depart.getDepname());
                voList.add(employeeVo);
            }
        }
        return voList;
    }

调用controller方法测试缓存是否保存在redis中