<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-cache</artifactId></dependency><dependency><groupId>com.google.guava</groupId><artifactId>guava</artifactId><version>19.0</version></dependency>

 @Override@Cacheable(value = "user", key = "'user'.concat(#id.toString())")public User findUserById(Long id) {log.info("findUserById query from db, id: {}", id);return userMap.get(id);}@Override@CachePut(value = "user", key = "'user'.concat(#user.id.toString())")public void update(User user) {log.info("update db, user: {}", user.toString());userMap.put(user.getId(), user);}@Override@CacheEvict(value = "user", key = "'user'.concat(#id.toString())")public void remove(Long id) {log.info("remove from db, id: {}", id);userMap.remove(id);}

package com.km.config;import com.google.common.cache.CacheBuilder;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cache.guava.GuavaCache;
import org.springframework.cache.support.SimpleCacheManager;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;import java.util.ArrayList;
import java.util.concurrent.TimeUnit;/*** <p>guava缓存配置</p>* Created by zhezhiyong@163.com on 2017/9/22.*/
@Configuration
@EnableCaching
public class GuavaConfig {/*** 配置全局缓存参数，3600秒过期，最大个数1000*/@Beanpublic CacheManager cacheManager() {GuavaCacheManager cacheManager = new GuavaCacheManager();cacheManager.setCacheBuilder(CacheBuilder.newBuilder().expireAfterWrite(3600, TimeUnit.SECONDS).maximumSize(1000));return cacheManager;}}

package com.km.config;import com.google.common.cache.CacheBuilder;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cache.guava.GuavaCache;
import org.springframework.cache.support.SimpleCacheManager;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;import java.util.ArrayList;
import java.util.concurrent.TimeUnit;/*** <p>guava缓存配置</p>* Created by zhezhiyong@163.com on 2017/9/22.*/
@Configuration
@EnableCaching
public class GuavaConfig {private static final int DEFAULT_MAXSIZE = 1000;private static final int DEFAULT_TTL = 3600;/*** 定义cache名称、超时时长秒、最大个数* 每个cache缺省3600秒过期，最大个数1000*/public enum Caches {user(60, 2),info(5),role;Caches() {}Caches(int ttl) {this.ttl = ttl;}Caches(int ttl, int maxSize) {this.ttl = ttl;this.maxSize = maxSize;}private int maxSize = DEFAULT_MAXSIZE;    //最大數量private int ttl = DEFAULT_TTL;        //过期时间（秒）public int getMaxSize() {return maxSize;}public void setMaxSize(int maxSize) {this.maxSize = maxSize;}public int getTtl() {return ttl;}public void setTtl(int ttl) {this.ttl = ttl;}}/*** 个性化配置缓存*/@Beanpublic CacheManager cacheManager() {SimpleCacheManager manager = new SimpleCacheManager();//把各个cache注册到cacheManager中，GuavaCache实现了org.springframework.cache.Cache接口ArrayList<GuavaCache> caches = new ArrayList<>();for (Caches c : Caches.values()) {caches.add(new GuavaCache(c.name(), CacheBuilder.newBuilder().recordStats().expireAfterWrite(c.getTtl(), TimeUnit.SECONDS).maximumSize(c.getMaxSize()).build()));}manager.setCaches(caches);return manager;}
}

server:port: 8080
spring:cache:type: guava

package com.km;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cache.annotation.EnableCaching;@SpringBootApplication
@EnableCaching
public class SpringBootGuavaCacheApplication {public static void main(String[] args) {SpringApplication.run(SpringBootGuavaCacheApplication.class, args);}
}