InetAddress.getLocalHost() 异常问题解决

最新推荐文章于 2025-03-07 10:25:04 发布

zrzking

最新推荐文章于 2025-03-07 10:25:04 发布

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分类专栏： linux配置文章标签： java 开发工具运维

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今天兴致勃勃登录contos服务器查看应用运行log信息，发现log中频繁出现 InetAddress.getLocalHost() 异常信息如下：

java.net.UnknownHostException: munan: munan: 未知的名称或服务
	at java.net.InetAddress.getLocalHost(InetAddress.java:1438)
	at weibo4j.http.HttpClient.httpRequest(HttpClient.java:380)
	at weibo4j.http.HttpClient.post(HttpClient.java:302)
	at weibo4j.Oauth.getAccessTokenByCode(Oauth.java:80)
	at sina.RefreshToken.refreshTokenInner(RefreshToken.java:125)
	at sina.RefreshToken.refreshToken(RefreshToken.java:34)
	at com.mpi.log.UpdateSocialUserHandler.getTokenBySina(UpdateSocialUserHandler.java:82)
	at com.mpi.log.UpdateSocialUserHandler.update(UpdateSocialUserHandler.java:54)
	at com.mpi.KeywordMain.main(KeywordMain.java:65)
Caused by: java.net.UnknownHostException: munan: 未知的名称或服务
	at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
	at java.net.InetAddress$1.lookupAllHostAddr(InetAddress.java:866)
	at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1258)
	at java.net.InetAddress.getLocalHost(InetAddress.java:1434)

查看主机名称写道

[root@munan ~]# hostname
munan

查看网络配置写道

[root@munan ~]# vi /etc/hosts
172.168.2.66 localhost localhost.localdomain localhost4 localhost4.localdomain172.168.2.66 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6

问题原因：主机名称为munan 但是hosts文件中没有增加 172.168.2.66 munan映射

修改办法：增加172.168.2.66 munan映射

参考网址：http://blog.youkuaiyun.com/perfect5085/article/details/7283067