1. pom.xml新增相關依賴

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.1.RELEASE</version>
</parent>

    <!-- 依賴 -->
    <dependencies>
        <!-- mybatis -->
 

        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.2.0</version>
        </dependency>
        <!-- redis相關 -->
        <dependency>
 

            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-redis</artifactId>
        </dependency
 
>
    <dependencies>

@Component
@ConfigurationProperties(prefix = "spring.redis.cluster")
public class ClusterConfigurationProperties {

    /*
     * spring.redis.cluster.nodes[0] = 127.0.0.1:7379
     * spring.redis.cluster.nodes[1] = 127.0.0.1:7380
     * ...
     */
    List<String> nodes;

    /**
     * Get initial collection of known cluster nodes in format {@code host:port}.
     *
     * @return
     */
    public List<String> getNodes() {
        return nodes;
    }

    public void setNodes(List<String> nodes) {
        this.nodes = nodes;
    }
}

@Configuration
public class AppConfig {

    /**
     * Type safe representation of application.properties
     */
    @Autowired ClusterConfigurationProperties clusterProperties;

    public @Bean RedisConnectionFactory connectionFactory() {

        return new JedisConnectionFactory(
            new RedisClusterConfiguration(clusterProperties.getNodes()));
    }
}

3 . 自定義二級快取類

public class RedisCache implements Cache {

    private static final String PREFIX = "SYS_CONFIG:";

    private final ReadWriteLock readWriteLock = new ReentrantReadWriteLock(true);

    private String id;
    private JdkSerializationRedisSerializer jdkSerializer = new JdkSerializationRedisSerializer();

    private static RedisConnectionFactory redisConnectionFactory;

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

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

    @Override
    public void putObject(Object key, Object value) {
        RedisClusterConnection conn = redisConnectionFactory
                .getClusterConnection();
        if (key == null)
            return;
        String strKey = PREFIX + key.toString();
        conn.set(strKey.getBytes(), jdkSerializer.serialize(value));
        conn.close();
    }

    @Override
    public Object getObject(Object key) {
        if (key != null) {
            String strKey = PREFIX + key.toString();
            RedisClusterConnection conn = redisConnectionFactory
                    .getClusterConnection();
            byte[] bs = conn.get(strKey.getBytes());
            conn.close();
            return jdkSerializer.deserialize(bs);
        }
        return null;
    }

    @Override
    public Object removeObject(Object key) {
        if (key != null) {
            RedisClusterConnection conn = redisConnectionFactory
                    .getClusterConnection();
            conn.del(key.toString().getBytes());
            conn.close();
        }
        return null;
    }

    @Override
    public void clear() {
        // 關鍵程式碼，data更新時清理快取
        RedisClusterConnection conn = redisConnectionFactory
                .getClusterConnection();
        Set<byte[]> keys = conn.keys((PREFIX+"*").getBytes());
        for (byte[] bs : keys) {
            conn.del(bs);
        }
        conn.close();
    }
    @Override
    public int getSize() {
        // TODO Auto-generated method stub
        return 0;
    }

    @Override
    public ReadWriteLock getReadWriteLock() {
        return this.readWriteLock;
    }


    public static void setRedisConnectionFactory(RedisConnectionFactory redisConnectionFactory) {
        RedisCache.redisConnectionFactory = redisConnectionFactory;
    }

}

使用一個Transfer類間接注入RedisConnectionFactory
@Component
public class RedisCacheTransfer {

@Autowired
public void setJedisConnectionFactory(
        RedisConnectionFactory jedisConnectionFactory) {
    RedisCache.setRedisConnectionFactory(jedisConnectionFactory);
}

}

4 . 在application.propreties中開啟二級快取

開啟mybatis的二級快取
spring.datasource.cachePrepStmts=true

5 . 基於註解的使用

@CacheNamespace(implementation = RedisCache.class)
public interface ConfigDaoMapper {
    .....
}