SpringMVC + MyBatis + Mysql + Redis(作为二级缓存) 配置

SpringMVC + MyBatis + Mysql + Redis(作为二级缓存) 配置
项目环境： 在SpringMVC + MyBatis + Mysql。Redis部署在Linux虚拟机。
1、整体思路
参考Ehcache实现MyBatis二级缓存代码（Maven引用对应jar查阅）
使用Spring管理Redis连接池
模仿EhcacheCache，实现RedisCache
2、pom.xml中加入Maven依赖
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org.springframework.data
spring-data-redis
1.6.2.RELEASE

redis.clients
jedis
2.8.0

org.mybatis
mybatis-ehcache
1.0.0

3、引入applicationContext.xml中引入redis配置
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id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">

    
        classpath:jdbc.properties
        classpath:redis.properties
    

p:host-name="${redis.host}" p:port="${redis.port}" p:password="${redis.pass}"  p:pool-config-ref="poolConfig"/>  

4、创建缓存实现类RedisCache
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public class RedisCache implements Cache
{

private static final Logger logger = LoggerFactory.getLogger(RedisCache.class);

private static JedisConnectionFactory jedisConnectionFactory;

private final String id;

/**
 * The {@code ReadWriteLock}.
 */
private final ReadWriteLock readWriteLock = new ReentrantReadWriteLock();

public RedisCache(final String id) {
    if (id == null) {
        throw new IllegalArgumentException("Cache instances require an ID");
    }
    logger.debug("MybatisRedisCache:id=" + id);
    this.id = id;
}

@Override
public void clear()
{
    JedisConnection connection = null;
    try
    {
        connection = jedisConnectionFactory.getConnection();
        connection.flushDb();
        connection.flushAll();
    }
    catch (JedisConnectionException e)
    {
        e.printStackTrace();
    }
    finally
    {
        if (connection != null) {
            connection.close();
        }
    }
}

@Override
public String getId()
{
    return this.id;
}

@Override
public Object getObject(Object key)
{
    Object result = null;
    JedisConnection connection = null;
    try
    {
        connection = jedisConnectionFactory.getConnection();
        RedisSerializer