mybatis整合redis

mybatis默认缓存是PerpetualCache，可以查看一下它的源码，发现其是Cache接口的实现；那么我们的缓存只要实现该接口即可。

该接口有以下方法需要实现：

  String getId();
  int getSize();
  void putObject(Object key, Object value);
  Object getObject(Object key);
  Object removeObject(Object key);
  void clear();
  ReadWriteLock getReadWriteLock();

1 实现类：

 package app.platform.mybatis

 import import  import import import  import import import   publicclassimplements  privatestaticclass private
 privatefinalnew  private  publicfinal ifnull thrownew   this
 public returnthis
 publicint  return
 publicvoid "="
 public  "=" return
 public return);

 publicvoid
 public return  protectedstatic newnew);
 return     }

 publicclass publicstaticbyte null null try
 new new  byte return catch   returnnull   publicstaticbyte null try
 new new return catch   returnnull         }

 

2 spring中的mybatis配置

<!-- mybatis配置 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="mapperLocations" value="classpath*:app/mapper/**/*.xml"/>
        <property name="configLocation" value="classpath:/mybatis/mybatis-config.xml" />
</bean>

3 mybatis-config.xml 中的settings配制

<settings>
<!-- 开启缓存支持 -->  
<setting name="cacheEnabled" value="true" />
....... 
</settings>

 

4 在需要加缓存的sqlMap中加入<cache eviction="LRU" type="app.platform.mybatis.MybatisRedisCache" />

例：

<mapper namespace="SYS_ROLE">

  <!-- 缓存 -->
  <cache eviction="LRU" type="app.platform.mybatis.MybatisRedisCache" />

   <!-- 查询所有 -->
<select id="findAll" parameterType="HashMap" resultType="HashMap">
select 
<include refid="base_column" />
from SYS_ROLE
where 1=1
<if test="BUS_TYPE!=null and BUS_TYPE!=''">
and BUS_TYPE  =#{BUS_TYPE}
</if>
<if test="ENABLE!=null and ENABLE!=''">
and ENABLE  =#{ENABLE}
</if>
<if test="ROLE_NAME!=null and ROLE_NAME!=''">
and ROLE_NAME like '%'||#{ROLE_NAME}||'%'
</if>
<if test="ROLE_OTHER_NAME!=null and ROLE_OTHER_NAME!=''">
and ROLE_OTHER_NAME like '%'||#{ROLE_OTHER_NAME}||'%'
</if>
</select>

</mapper>

本文参考了http://blog.csdn.net/nmgrlq/article/details/7996925，按他的方式没配置成功，按上面的方式修改后成功