pom.xml

<!--ehcache-->
<dependency>
  <groupId>net.sf.ehcache</groupId>
  <artifactId>ehcache</artifactId>
  <version>2.10.6</version>
</dependency>
<dependency>
  <groupId>org.mybatis</groupId>
  <artifactId>mybatis-ehcache</artifactId>
  <version>1.0.0</version>
</dependency>

ehcache.xml

<?xml version="1.0" encoding="UTF-8"?>
<ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:noNamespaceSchemaLocation="http://ehcache.org/ehcache.xsd">
    <!--使用ehcache缓存需要在mapper.xml文件中添加：
        <cache type="org.mybatis.caches.ehcache.LoggingEhcache"/>
    -->
    <defaultCache overflowToDisk="true" eternal="false"
                  maxElementsInMemory="1"
                  timeToLiveSeconds="10"
                  maxEntriesLocalHeap="1000"
                  maxEntriesLocalDisk="10000000"
                  memoryStoreEvictionPolicy="LRU"/>
    <diskStore path="d:/myProject/cache" />
</ehcache>

*Mapper.xml

<!--开启二级缓存-->
<cachetype="org.mybatis.caches.ehcache.LoggingEhcache"/>