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)
2.问题解决
打开Linux上 /etc/hosts文件，在文件最后加入这句配置，重启服务即可
1 172.xx.xxx.xxx localhost.localdomain xxx-houtai1
172.xx.xxx.xxx : 应用ip地址
localhost.localdomain : 为域名,可以不加
xxx-houtai1 :主机名称