初始化EHcache CacheManager时报java.net.UnknownHostException

工程启动时，报一下异常：

[wdfportal] [2014-11-12 13:56:17] [INFO ] main org.springframework.cache.ehcache.EhCacheManagerFactoryBean.afterPropertiesSet(EhCacheManagerFactoryBean.java:100) Initializing EHCache CacheManager  
[wdfportal] [2014-11-12 13:56:17] [ERROR] main net.sf.ehcache.Cache.(Cache.java:128) Unable to set localhost. This prevents creation of a GUID. Cause was: BJS0-0WP-V: BJS0-0WP-V  
java.net.UnknownHostException: BJS0-0WP-V: BJS0-0WP-V
	at java.net.InetAddress.getLocalHost(InetAddress.java:1360)
	at net.sf.ehcache.Cache.(Cache.java:126)
	at net.sf.ehcache.config.ConfigurationHelper.createCache(ConfigurationHelper.java:418)
	at net.sf.ehcache.config.ConfigurationHelper.createDefaultCache(ConfigurationHelper.java:334)
	at net.sf.ehcache.CacheManager.configure(CacheManager.java:306)
	at net.sf.ehcache.CacheManager.init(CacheManager.java:226)
	at net.sf.ehcache.CacheManager.(CacheManager.java:202)
	at org.springframework.cache.ehcache.EhCacheManagerFactoryBean.afterPropertiesSet(EhCacheManagerFactoryBean.java:113)

查看hostname：
# hostname
BJS0-0WP-V
# hostname -i
未知的主机

在查看/etc/hosts
# vi /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6

其中没有hostname的映射，导致找不到主机。
修改hosts文件，添加主机的hostname即可：
# vi /etc/hosts
127.0.0.1 BJS0-0WP-V localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6