mybatis+spring+ehcache缓存

柔光的暖阳◎ 2022-06-04 01:17 203阅读 0赞

### applicationContext.xml ###

<ehcache:annotation-driven cache-manager="ehcacheManager" />
    
        <ehcache:config cache-manager="ehcacheManager">
            <ehcache:evict-expired-elements interval="60" />
        </ehcache:config>
    
        <bean id="ehcacheManager" class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean">
            <property name="configLocation" value="classpath:ehcache.xml" />
        </bean>

### ehcache.xml ###

**name必须唯一**

<?xml version="1.0" encoding="UTF-8"?>
    <ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://ehcache.org/ehcache.xsd">
        <diskStore path="java.io.tmpdir"/>
    
        <defaultCache maxElementsInMemory="3000" eternal="false" timeToIdleSeconds="3600" timeToLiveSeconds="3600" overflowToDisk="true" diskPersistent="false" diskExpiryThreadIntervalSeconds="100" memoryStoreEvictionPolicy="LRU" />
        <cache name="categoryCache" maxElementsInMemory="3000" eternal="false" overflowToDisk="true" timeToIdleSeconds="3600" timeToLiveSeconds="3600" memoryStoreEvictionPolicy="LFU" />
        <cache name="addressCache" maxElementsInMemory="3000" eternal="false" overflowToDisk="true" timeToIdleSeconds="3600" timeToLiveSeconds="3600" memoryStoreEvictionPolicy="LFU" />

### mapper中配置 ###

<cache type="org.mybatis.caches.ehcache.LoggingEhcache" />

### service层注解 ###

**cacheNames指定配置中的名字**

@Cacheable(cacheNames = "categoryCache")
        @Override
        public List<Category> getAll(int categoryId) {
            return categoryDao.getAll(categoryId);
        }

### 测试 ###

环境搭建成功后启动tomcat不报错,可以比较第一次查询跟后几次查询的时间,非常明显速度提高就配置成功了.

### jar依赖 ###

compile 'org.apache.archiva.redback.components.cache:spring-cache-ehcache:2.2'
    compile 'com.googlecode.ehcache-spring-annotations:ehcache-spring-annotations:1.2.0'
    compile  'org.mybatis.caches:mybatis-ehcache:1.0.3'

**经常错误的地方是jar包方面,还有ehcache name不唯一**