Spring Cache集成spring默认缓存实现

一时失言乱红尘 2022-08-09 05:23 34阅读 0赞

spring提供了如下接口：

org.springframework.cache.Cache  缓存数据操作接口

org.springframework.cache.CacheManager  Cache的管理接口

上一节我们已经使用过了CacheManager的一个实现类org.springframework.cache.support.SimpleCacheManager，常见的有如下实现类：

org.springframework.cache.concurrent.ConcurrentMapCacheManager

org.springframework.cache.Cache.GuavaCacheManager

rg.springframework.cache.support.SimpleCacheManager

org.springframework.cache.ehcache.EhCacheCacheManager

org.springframework.cache.jcache.JCacheCacheManager

针对于redis有org.springframework.data.redis.cache.RedisCacheManager实现。

spring默认采用ConcurrentHashMap实现缓存数据存储，org.springframework.cache.concurrent.ConcurrentMapCache实现Cache接口，org.springframework.cache.concurrent.ConcurrentMapCacheManager实现CacheManager接口。

spring配置如下：

<?xml version='1.0' encoding='UTF-8'?>
    <beans xmlns='http://www.springframework.org/schema/beans'
    	xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' 
    	xmlns:context='http://www.springframework.org/schema/context'
    	xmlns:c='http://www.springframework.org/schema/c' 
    	xmlns:p='http://www.springframework.org/schema/p'
    	xmlns:cache='http://www.springframework.org/schema/cache'
    	xsi:schemaLocation='
    		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
            http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache.xsd
            '>
    	
    	
    	<cache:annotation-driven cache-manager="cacheManager" />
    
    	<bean id="userService" class="org.springframework.cache.demo.UserService" />
    
    	
    	<bean id="cacheManager" class="org.springframework.cache.concurrent.ConcurrentMapCacheManager">
    		<constructor-arg index="0" value="userCache" />
    	 </bean>
    </beans>

还可以使用SimpleCacheManager来配置器CacheManager，使用ConcurrentMapCache的工厂类org.springframework.cache.concurrent.ConcurrentMapCacheFactoryBean，如下：

添加jar依赖：

<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-context</artifactId>
    			<version>4.1.7.RELEASE</version>
    		</dependency>
    
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-context-support</artifactId>
    			<version>4.1.7.RELEASE</version>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-tx</artifactId>
    			<version>4.1.7.RELEASE</version>
    		</dependency>