2019獨角獸企業重金招聘Python工程師標準>>>

本文記錄一次在CentOS6.7上，啟動Tomcat報錯，并解決錯誤問題的一個過程。

錯誤信息

java.net.UnknownHostException: dev02.gzhl.interconnect: dev02.gzhl.interconnect: Name or service not known

將war包打入Tomcat，啟動的時候遇到錯誤，查看日志信息，可以看出是不知道主機名dev02.gzhl.interconnect

java.net.UnknownHostException: dev02.gzhl.interconnect: dev02.gzhl.interconnect: Name or service not knownat java.net.InetAddress.getLocalHost(InetAddress.java:1473)at com.mchange.v2.c3p0.impl.C3P0ImplUtils.generateVmId(C3P0ImplUtils.java:120)at com.mchange.v2.c3p0.impl.C3P0ImplUtils.<clinit>(C3P0ImplUtils.java:98)at com.mchange.v2.c3p0.impl.PoolBackedDataSourceBase.<init>(PoolBackedDataSourceBase.java:227)at com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.<init>(AbstractPoolBackedDataSource.java:62)at com.mchange.v2.c3p0.ComboPooledDataSource.<init>(ComboPooledDataSource.java:109)at com.mchange.v2.c3p0.ComboPooledDataSource.<init>(ComboPooledDataSource.java:105)at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)at java.lang.reflect.Constructor.newInstance(Constructor.java:526)at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:148)at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:89)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1069)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1021)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:703)at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760)at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403)at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306)at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5118)at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5634)at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:899)at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:875)at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1260)at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:2002)

解決方法

出現上述錯誤信息，一般是/etc/hosts文件中未配置相應的host名字。配置一下即可解決問題。

使用vi /etc/hosts命令查看文件內容：

[root@dev02 ~]# vi /etc/hosts

我們可以看到dev02.gzhl.interconnect沒有配置在該文件內：

127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6

將dev02.gzhl.interconnect添加到/etc/hosts文件內，如

127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 dev02.gzhl.interconnect ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 dev02.gzhl.interconnect

即可解決問題。

轉載于:https://my.oschina.net/wangmengjun/blog/824657

總結

以上是生活随笔為你收集整理的Tomcat启动Name or service not known错误解决的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。