系統環境：centos-7 64位

問題描述：java客戶端jedis訪問centos中redis資料庫報如下錯誤

redis.clients.jedis.exceptions.JedisConnectionException: Could not get a resource from the pool
at redis.clients.util.Pool.getResource(Pool.java:40)
at com.firstelite.util.RedisClient.<init>(RedisClient.java:27)
at com.firstelite.util
 
.Test.main(Test.java:7)
Caused by: redis.clients.jedis.exceptions.JedisConnectionException: java.net.SocketTimeoutException: connect timed out
at redis.clients.jedis.Connection.connect(Connection.java:137)
at redis.clients.jedis.BinaryClient.connect(BinaryClient.java:65)
at redis.clients.jedis.BinaryJedis
 
.connect(BinaryJedis.java:1706)
at redis.clients.jedis.JedisFactory.makeObject(JedisFactory.java:28)
at 

解決辦法：
centos防火牆預設開啟狀態，遠端訪問時將會超時，將防火牆關閉即可解決。
關閉防火牆命令：systemctl stop firewalld.service
ps：啟用防火牆命令：systemctl start firewalld.service

測試：

@Test
    //獲得單一的jedis物件操作資料庫
    public void test1(){

        //1、獲得連線物件
 

        Jedis jedis = new Jedis("192.168.1.128", 6379);

        //2、儲存資料
        jedis.set("addr", "北京");

        //3、獲得資料
        String addr= jedis.get("addr");
        System.out.println(addr);


    }

單元測試結果：北京