caffeine缓存失效时间设置

Posted 2022-04-13 ISaiSai

两种设置方法
Yml文件

spring:
  cache:
    type: caffeine
    caffeine:
      spec: maximumSize=500,expireAfterWrite=5s

config 文件

package com.example.demo;

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

import java.util.concurrent.TimeUnit;

@Configuration
public class CacheConfig 
    @Bean("caffeineCacheManager")
    public CacheManager cacheManager() 
        CaffeineCacheManager cacheManager = new CaffeineCacheManager();
        cacheManager.setCaffeine(Caffeine.newBuilder()
                // 设置最后一次写入或访问后经过固定时间过期
                .expireAfterAccess(10, TimeUnit.SECONDS)
                // 初始的缓存空间大小
                .initialCapacity(100)
                // 缓存的最大条数
                .maximumSize(1000));
        return cacheManager;