yb课堂 谷歌开源缓存框架Guava cache，封装API 《二十》

Guava cache

• github地址：点我直达
• 全内存的本地缓存实现
• 高性能且功能丰富
• 线程安全，操作简单

添加依赖

        <dependency>
            <groupId>com.google.guava</groupId>
            <artifactId>guava</artifactId>
            <version>19.0</version>
        </dependency>

封装API

BaseCache.java

package net.ybclass.online_ybclass.utils;

import com.google.common.cache.Cache;
import com.google.common.cache.CacheBuilder;
import org.springframework.stereotype.Component;

import java.util.concurrent.TimeUnit;

@Component
public class BaseCache {
    private Cache<String, Object> tenMinteCache= CacheBuilder.newBuilder()
            .initialCapacity(10) //设置缓存初始大小，应该合理设置，后期会扩容
            .maximumSize(100) //最大值
            .concurrencyLevel(5) //并发数
            .expireAfterWrite(600, TimeUnit.SECONDS) //缓存过期时间，写入后10分钟过期
            .recordStats() //统计缓存命中率
            .build();

    public Cache<String, Object> getTenMinteCache() {
        return tenMinteCache;
    }

    public void setTenMinteCache(Cache<String, Object> tenMinteCache) {
        this.tenMinteCache = tenMinteCache;
    }
}