CacheConfig.java

package com.kwan.springbootkwan.config;

import com.github.benmanes.caffeine.cache.Caffeine;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cache.caffeine.CaffeineCacheManager;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.concurrent.TimeUnit;

@Configuration
@EnableCaching
public class CacheConfig {

    @Bean
    public Caffeine<Object, Object> caffeineConfig() {
        return Caffeine.newBuilder()
                .expireAfterWrite(10, TimeUnit.MINUTES) // 设置缓存失效时间为10分钟
                .maximumSize(10_000) // 设置缓存的最大容量为10_000
                .recordStats(); // 启用统计信息，可通过Cache.stats()获取缓存命中率等统计数据
    }

    @Bean
    public CacheManager cacheManager(Caffeine<Object, Object> caffeine) {
        CaffeineCacheManager cacheManager = new CaffeineCacheManager();
        cacheManager.setCaffeine(caffeine);
        return cacheManager;
    }
}