Caffeine缓存公共模块
chentaisen
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>com.muyu</groupId>
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<artifactId>cloud-common</artifactId>
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<version>3.6.3</version>
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</parent>
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<artifactId>cloud-common-caffeine</artifactId>
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<properties>
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<maven.compiler.source>17</maven.compiler.source>
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<maven.compiler.target>17</maven.compiler.target>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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</properties>
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<dependencies>
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<dependency>
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<groupId>com.muyu</groupId>
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<artifactId>cloud-common-redis</artifactId>
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</dependency>
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<dependency>
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<groupId>com.github.ben-manes.caffeine</groupId>
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<artifactId>caffeine</artifactId>
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<version>2.9.3</version>
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</dependency>
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<dependency>
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<groupId>com.github.ben-manes.caffeine</groupId>
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<artifactId>caffeine</artifactId>
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</dependency>
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</dependencies>
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</project>
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package com.muyu.common.caffeine;
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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 com.muyu.common.caffeine.constents.CaffeineContent;
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import com.muyu.common.redis.service.RedisService;
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import lombok.extern.slf4j.Slf4j;
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import org.apache.commons.lang3.ObjectUtils;
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import org.springframework.cache.caffeine.CaffeineCache;
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import org.springframework.cache.support.SimpleCacheManager;
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import org.springframework.stereotype.Component;
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import javax.annotation.Resource;
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import java.util.ArrayList;
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import java.util.Map;
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import java.util.Objects;
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import java.util.concurrent.TimeUnit; /**
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* @Author: 胡杨
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* @Name: CaffeineUtils
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* @Description: 缓存工具类
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* @CreatedDate: 2024/9/26 下午2:53
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* @FilePath: com.muyu.common.caffeine
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*/
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@Slf4j
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@Component
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public class CaffeineCacheUtils {
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@Resource
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private RedisService redisService;
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@Resource
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private SimpleCacheManager simpleCacheManager;
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/**
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* 车辆上线 - 新增缓存
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*/
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public void addCarCache(String vin) {
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ArrayList<CaffeineCache> caches = new ArrayList<>();
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// 从Redis中获取缓存信息
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Map<String,Object> cacheMap = redisService.getCacheMap(CaffeineContent.CAR_VIN+vin);
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cacheMap.forEach((key, value) -> {
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Cache<Object , Object> cache = Caffeine.newBuilder().build();
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cache.put(key, value);
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// 全部存储到 CaffeineCache集合
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caches.add(new CaffeineCache(vin, cache));
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});
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simpleCacheManager.setCaches(caches);
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log.info("车辆编码:{},本地缓存完成...",vin);
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}
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/**
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* 车辆下线 - 删除缓存
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*/
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public void deleteCarCache(String vin) {
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if (hasCarVinCache(vin)) {
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log.warn("车辆编码:{},本地缓存不存在该车辆信息...", vin);
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return;
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}
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simpleCacheManager.getCache(vin).invalidate();
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log.info("车辆编码:{},本地缓存删除完成...", vin);
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}
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/**
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* 获取车辆信息缓存
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*/
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public Object getCarCache(String vin, String key) {
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if (hasCarVinKeyCache(vin, key)){
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log.warn("车辆编码:{},本地缓存不存在该车辆信息...",vin);
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return null;
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}
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return simpleCacheManager.getCache(vin).get(key).get();
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}
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/**
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* 获取车辆信息缓存
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*/
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public <T> T getCarCache(String vin, String key, Class<T> type) {
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if (hasCarVinKeyCache(vin,key)){
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log.warn("车辆编码:{},本地缓存不存在该车辆信息...",vin);
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return null;
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}
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return simpleCacheManager.getCache(vin).get(key, type);
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}
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/**
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* 判断缓存存在与否
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*/
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public Boolean hasCarVinCache(String vin) {
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return ObjectUtils.isNotEmpty(simpleCacheManager.getCache(vin));
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}
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/**
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* 判断缓存的Key存在与否
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*/
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public Boolean hasCarVinKeyCache(String vin,String key) {
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return hasCarVinCache(vin) && ObjectUtils.isNotEmpty(simpleCacheManager.getCache(vin).get(key).get());
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}
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}
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package com.muyu.common.caffeine.bean;
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import com.github.benmanes.caffeine.cache.Cache;
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import com.muyu.common.redis.service.RedisService;
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import org.springframework.cache.CacheManager;
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import org.springframework.cache.caffeine.CaffeineCache;
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import org.springframework.cache.support.SimpleCacheManager;
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import org.springframework.context.annotation.Bean;
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import org.springframework.stereotype.Component;
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import javax.annotation.Resource;
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import java.util.ArrayList;
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/**
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* @Author: 胡杨
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* @Name: CaffeineCacheConfig
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* @Description: Caffeine管理器
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* @CreatedDate: 2024/9/26 上午11:52
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* @FilePath: com.muyu.common.caffeine.config
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*/
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@Component
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public class CaffeineManagerBean {
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/**
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* 创建缓存管理器
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* @return 缓存管理器实例
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*/
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@Bean
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public SimpleCacheManager simpleCacheManager() {
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return new SimpleCacheManager();
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}
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}
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@ -0,0 +1,16 @@
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package com.muyu.common.caffeine.constents;
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/**
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* @Author: 胡杨
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* @Name: CaffeineContent
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* @Description: Caffeine常量
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* @CreatedDate: 2024/9/26 下午12:06
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* @FilePath: com.muyu.common.caffeine.constents
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*/
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public class CaffeineContent {
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public static final String CAR_VIN = "car:Vin";
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public static final String VIN = "vin";
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}
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@ -0,0 +1,3 @@
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com.muyu.cloud.common.saas.interceptor.WebMvcSaaSConfig
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com.muyu.cloud.common.many.datasource.ManyDataSource
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com.muyu.cloud.common.many.datasource.factory.DruidDataSourceFactory
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