centos下使用redis报错cant resolve localhost address

centos下部署使用redis报了如下错误：redis.clients.jedis.HostAndPort.getLocalHostQuietly cant resolve localhost address

redis.clients.jedis.HostAndPort.getLocalHostQuietly cant resolve localhost address
java.net.UnknownHostException: host-192-168-1-100: host-192-168-1-100: Name or service not known
at java.net.InetAddress.getLocalHost(InetAddress.java:1506)
at redis.clients.jedis.HostAndPort.getLocalHostQuietly(HostAndPort.java:105)
at redis.clients.jedis.HostAndPort.<clinit>(HostAndPort.java:12)
at redis.clients.jedis.JedisFactory.<init>(JedisFactory.java:37)
at redis.clients.jedis.JedisPool.<init>(JedisPool.java:185)
at redis.clients.jedis.JedisPool.<init>(JedisPool.java:162)
at redis.clients.jedis.JedisPool.<init>(JedisPool.java:92)

在/etc/hosts中添加主机名

#查看主机名
hostname

#在第一行内容中添加上面查到的主机名即可
vim /etc/hosts