问使用Java Redis客户端(Lettuce)连接到亚马逊ElastiCache

EN

RedisClient redisClient = new RedisClient("CacheCluster Endpoint", 6379);

RedisConnection<String, String> connection = redisClient.connect();

connection.set("key", "Hello, Redis!");

connection.close();
redisClient.shutdown();

Exception in thread "main" com.lambdaworks.redis.RedisConnectionException: Unable to connect to mycachecluster.b4ujee.0001.usw2.cache.amazonaws.com/172.31.34.211:6379
    at com.lambdaworks.redis.AbstractRedisClient.initializeChannel(AbstractRedisClient.java:214)
    at com.lambdaworks.redis.RedisClient.connectAsync(RedisClient.java:322)
    at com.lambdaworks.redis.RedisClient.connectAsync(RedisClient.java:303)
    at com.lambdaworks.redis.RedisClient.connect(RedisClient.java:259)
    at com.lambdaworks.redis.RedisClient.connect(RedisClient.java:238)
    at com.lambdaworks.redis.RedisClient.connect(RedisClient.java:222)
    at project1.JavaRedis.main(JavaRedis.java:17)
Caused by: java.net.ConnectException: Connection timed out: no further information: mycachecluster.b4ujee.0001.usw2.cache.amazonaws.com/172.31.34.211:6379
    at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
    at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
    at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:224)
    at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:289)
    at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:528)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)
    at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)
    at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)
    at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:137)
    at java.lang.Thread.run(Thread.java:619)