java.net.UnknownHostException: host01: host01: Name or service not known

最新推荐文章于 2025-05-29 13:46:34 发布
原创 最新推荐文章于 2025-05-29 13:46:34 发布 · 9.3k 阅读 · 0 ·
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#eclipse #java #linux #异常

本文介绍了解决在Linux环境下部署Java集群时遇到的UnknownHostException异常的方法。通过修改/etc/hosts文件并添加缺失的主机名，成功解决了系统无法识别特定主机的问题。

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在linux系统下部署Java产品的集群环境时，后台报出如下异常，系统报找不到名为“host01”的主机：

java.net.UnknownHostException: host01:host01: Name or service not known

       at java.net.InetAddress.getLocalHost(InetAddress.java:1473)

        atcom.nse.cmccdm.hwtools.snmptrap.TrapThread.init(TrapThread.java:59)


解决方法：

修改/etc/hosts文件

操作：1、cd etc ——2、vi hosts ——3、在最后一行添加如下所示；

127.0.0.1 主机名 localhost.localdomain localhost

或是

127.0.0.1 主机名 

主机名是新加的，原来没有，保存，问题解决。




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