Mybatis + Shiro 使用ehcache做二级缓存

曾经终败给现在 2022-05-25 13:09 222阅读 0赞

## 1、mybatis的ehcache依赖：    ##

<dependency>
      	<groupId>org.mybatis</groupId>
    	<artifactId>mybatis-ehcache</artifactId>
    	<version>1.0.0</version>
    </dependency>
    
    <dependency>
      	<groupId>org.ehcache</groupId>
      	<artifactId>ehcache</artifactId>
      	<version>3.0.1</version>
    </dependency>

## 2、shiro的ehcache依赖： ##

<dependency>
    	<groupId>org.apache.shiro</groupId>
    	<artifactId>shiro-spring</artifactId>
    	<version>1.2.3</version>
    </dependency>
    
    <dependency>
    	<groupId>net.sf.ehcache</groupId>
    	<artifactId>ehcache-core</artifactId>
    	<version>2.6.9</version>
    </dependency>
    
    <dependency>
    	<groupId>org.apache.shiro</groupId>
    	<artifactId>shiro-ehcache</artifactId>
    	<version>1.2.3</version>
    </dependency>
    
    <dependency>
    	<groupId>net.sf.ehcache</groupId>
    	<artifactId>ehcache-web</artifactId>
    	<version>2.0.4</version>
    </dependency>

## 3、因为两者都有ehcache,所以需要共享ehcache,mybatis配置文件中，加入： ##

<bean id="ehCacheManager" class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean">
        <property name="configLocation" value="classpath:ehcache.xml"/>
          
        <property name="shared" value="true"></property> 
    </bean> 
      
    
      
    <bean id="shiroCacheManager" class="org.apache.shiro.cache.ehcache.EhCacheManager">  
        <property name="cacheManager" ref="ehCacheManager" />  
    </bean>

## 4、作用 ##

1、使mybatis和shiro共享ehcache
    2、使同一个查询，只查询一次，第一次查询后，放到ehcache里面，后面直接从缓存取