java.net.UnknownHostException异常处理

最新推荐文章于 2022-04-09 16:34:59 发布

转载最新推荐文章于 2022-04-09 16:34:59 发布 · 1.1k 阅读

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原文链接：http://www.cnblogs.com/zs-notes/p/8805720.html

文章标签：

#java

本文介绍了一种在Linux环境下部署Java应用时遇到的主机名解析问题及解决方案。通过在/etc/hosts文件中添加特定的IP和主机名映射，解决了因主机名未被正确解析而导致的应用启动失败的问题。

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1.问题描述

　　最近迁移环境，在Linux系统下部署Java产品的应用，后台报出如下异常，系统报找不到名为“xxx-houtai1”的主机：

 1 java.net.UnknownHostException: xxx-houtai1: xxx-houtai1 
 2         at java.net.InetAddress.getLocalHost(InetAddress.java:1353) 
 3         at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1029) 
 4         at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:862) 
 5         at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4013) 
 6         at org.apache.catalina.core.StandardContext.start(StandardContext.java:4357)
 7         at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:823) 
 8         at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:807) 
 9         at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:595) 
10         at org.apache.catalina.core.StandardHostDeployer.install(StandardHostDeployer.java:277) 
11         at org.apache.catalina.core.StandardHost.install(StandardHost.java:832) 
12         at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:701) 
13         at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:432) 
14         at org.apache.catalina.startup.HostConfig.start(HostConfig.java:983) 
15         at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:349) 
16         at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119) 
17         at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1091) 
18         at org.apache.catalina.core.StandardHost.start(StandardHost.java:789) 
19         at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1083) 
20         at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:478) 
21         at org.apache.catalina.core.StandardService.start(StandardService.java:480) 
22         at org.apache.catalina.core.StandardServer.start(StandardServer.java:2313) 
23         at org.apache.catalina.startup.Catalina.start(Catalina.java:556) 
24         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
25         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
26         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
27         at java.lang.reflect.Method.invoke(Method.java:597) 
28         at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:287) 
29         at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:425)