package com.gkhy.exam.common.config;
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import com.github.benmanes.caffeine.cache.Cache;
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import com.github.benmanes.caffeine.cache.Caffeine;
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import org.springframework.cache.CacheManager;
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import org.springframework.cache.concurrent.ConcurrentMapCacheManager;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import java.util.concurrent.TimeUnit;
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public class CaffeineConfig {
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/**
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* 系统默认缓存TTL时间：10分钟
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*/
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public static final long SYSTEM_DEFAULT_EXPIRES = 10 * 60 * 1000;
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@Bean
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public Cache<String,Object> caffeineCache(){
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return Caffeine.newBuilder()
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// 设置最后一次写入或访问后经过固定时间过期
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.expireAfterWrite(SYSTEM_DEFAULT_EXPIRES, TimeUnit.MILLISECONDS)
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// 初始的缓存空间大小
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.initialCapacity(100)
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// 缓存的最大条数
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.maximumSize(10000)
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.build();
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}
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//@Bean
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public CacheManager cacheManager() {
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// create and return an instance of your preferred cache manager, for example:
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return new ConcurrentMapCacheManager();
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}
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}
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