springboot整合guava实现本地缓存的示例代码

 <dependency>
            <groupId>com.google.guava</groupId>
            <artifactId>guava</artifactId>
            <version>20.0</version>
 </dependency>

void testRecordStats(){
        Cache<String, String> callCache = CacheBuilder.newBuilder().
                initialCapacity(5)
                .maximumSize(100)
                .recordStats()
                .expireAfterAccess(1, TimeUnit.SECONDS)
                .build();


        /**
        * CacheStats{hitCount=0, missCount=0, loadSuccessCount=0, loadExceptionCount=0, totalLoadTime=0, evictionCount=0}
        */
        CacheStats stats = callCache.stats();
        System.out.println(stats);

    }

/**
 * @Author sprem至尊
 * @Date 2022/10/24 19:39
 * @Version 1.0
 */
package com.cn.xiaonuo.modular.wechat.cache;


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

import java.util.concurrent.TimeUnit;

@Component
public class TokenCache {

    private static LoadingCache<String,String> loadingCache = CacheBuilder
            .newBuilder().initialCapacity(100).maximumSize(100)
            .expireAfterWrite(7000, TimeUnit.SECONDS)
            .build(new CacheLoader<String, String>() {
                @Override
                public String load(String key) throws Exception {

                    return null;
                }

            });


    public static void setKey(String key,String value){
        loadingCache.put(key, value);
    }

    public static String getValue(String key){
        String value = null;

        try{
            value = loadingCache.get(key);
            if(value == null){
                return null;
            }
            return value;

        }catch (Exception e){
            return null;
        }

    }
}