tomcat启动提示Couldn‘t get host name问题

tomcat启动提示couldn‘t get host name

问题描述

系统之前是可以正常运行的，更新后启动tomcat报如下错误：

2020-07-31 17:21:39 [main] info  org.quartz.impl.stdschedulerfactory - using default implementation for threadexecutor
2020-07-31 17:21:39 [main] error org.quartz.impl.stdschedulerfactory - couldn't generate instance id!
org.quartz.schedulerexception: couldn't get host name!
    at org.quartz.simpl.simpleinstanceidgenerator.generateinstanceid(simpleinstanceidgenerator.java:36)
    at org.quartz.impl.stdschedulerfactory.instantiate(stdschedulerfactory.java:1235)
    at org.quartz.impl.stdschedulerfactory.getscheduler(stdschedulerfactory.java:1559)
    at org.springframework.scheduling.quartz.schedulerfactorybean.createscheduler(schedulerfactorybean.java:637)
    at org.springframework.scheduling.quartz.schedulerfactorybean.afterpropertiesset(schedulerfactorybean.java:511)
    at org.springframework.beans.factory.support.abstractautowirecapablebeanfactory.invokeinitmethods(abstractautowirecapablebeanfactory.java:1765)
    at org.springframework.beans.factory.support.abstractautowirecapablebeanfactory.initializebean(abstractautowirecapablebeanfactory.java:1702)
    at org.springframework.beans.factory.support.abstractautowirecapablebeanfactory.docreatebean(abstractautowirecapablebeanfactory.java:579)
    at org.springframework.beans.factory.support.abstractautowirecapablebeanfactory.createbean(abstractautowirecapablebeanfactory.java:501)
    at org.springframework.beans.factory.support.abstractbeanfactory.lambda$dogetbean$0(abstractbeanfactory.java:317)
    at org.springframework.beans.factory.support.defaultsingletonbeanregistry.getsingleton(defaultsingletonbeanregistry.java:228)
    at org.springframework.beans.factory.support.abstractbeanfactory.dogetbean(abstractbeanfactory.java:315)
    at org.springframework.beans.factory.support.abstractbeanfactory.getbean(abstractbeanfactory.java:199)
    at org.springframework.beans.factory.config.dependencydescriptor.resolvecandidate(dependencydescriptor.java:251)
    at org.springframework.beans.factory.support.defaultlistablebeanfactory.doresolvedependency(defaultlistablebeanfactory.java:1138)
    at org.springframework.beans.factory.support.defaultlistablebeanfactory.resolvedependency(defaultlistablebeanfactory.java:1065)
    at org.springframework.beans.factory.annotation.autowiredannotationbeanpostprocessor$autowiredfieldelement.inject(autowiredannotationbeanpostprocessor.java:584)
    at org.springframework.beans.factory.annotation.injectionmetadata.inject(injectionmetadata.java:91)
    at org.springframework.beans.factory.annotation.autowiredannotationbeanpostprocessor.postprocesspropertyvalues(autowiredannotationbeanpostprocessor.java:373)
    at org.springframework.beans.factory.support.abstractautowirecapablebeanfactory.populatebean(abstractautowirecapablebeanfactory.java:1348)
    at org.springframework.beans.factory.support.abstractautowirecapablebeanfactory.docreatebean(abstractautowirecapablebeanfactory.java:578)
    at org.springframework.beans.factory.support.abstractautowirecapablebeanfactory.createbean(abstractautowirecapablebeanfactory.java:501)
    at org.springframework.beans.factory.support.abstractbeanfactory.lambda$dogetbean$0(abstractbeanfactory.java:317)
    at org.springframework.beans.factory.support.defaultsingletonbeanregistry.getsingleton(defaultsingletonbeanregistry.java:228)
    at org.springframework.beans.factory.support.abstractbeanfactory.dogetbean(abstractbeanfactory.java:315)
    at org.springframework.beans.factory.support.abstractbeanfactory.getbean(abstractbeanfactory.java:204)
    at org.springframework.context.support.postprocessorregistrationdelegate.registerbeanpostprocessors(postprocessorregistrationdelegate.java:238)
    at org.springframework.context.support.abstractapplicationcontext.registerbeanpostprocessors(abstractapplicationcontext.java:710)
    at org.springframework.context.support.abstractapplicationcontext.refresh(abstractapplicationcontext.java:535)
    at org.springframework.boot.web.servlet.context.servletwebserverapplicationcontext.refresh(servletwebserverapplicationcontext.java:140)
    at org.springframework.boot.springapplication.refresh(springapplication.java:759)
    at org.springframework.boot.springapplication.refreshcontext(springapplication.java:395)
    at org.springframework.boot.springapplication.run(springapplication.java:327)
    at org.springframework.boot.web.servlet.support.springbootservletinitializer.run(springbootservletinitializer.java:155)
    at org.springframework.boot.web.servlet.support.springbootservletinitializer.createrootapplicationcontext(springbootservletinitializer.java:135)
    at org.springframework.boot.web.servlet.support.springbootservletinitializer.onstartup(springbootservletinitializer.java:87)
    at org.springframework.web.springservletcontainerinitializer.onstartup(springservletcontainerinitializer.java:172)
    at org.apache.catalina.core.standardcontext.startinternal(standardcontext.java:5125)
    at org.apache.catalina.util.lifecyclebase.start(lifecyclebase.java:183)
    at org.apache.catalina.core.containerbase.addchildinternal(containerbase.java:713)
    at org.apache.catalina.core.containerbase.addchild(containerbase.java:690)
    at org.apache.catalina.core.standardhost.addchild(standardhost.java:695)
    at org.apache.catalina.startup.hostconfig.deploywar(hostconfig.java:978)
    at org.apache.catalina.startup.hostconfig$deploywar.run(hostconfig.java:1850)
    at java.util.concurrent.executors$runnableadapter.call(executors.java:511)
    at java.util.concurrent.futuretask.run(futuretask.java:266)
    at org.apache.tomcat.util.threads.inlineexecutorservice.execute(inlineexecutorservice.java:75)
    at java.util.concurrent.abstractexecutorservice.submit(abstractexecutorservice.java:112)
    at org.apache.catalina.startup.hostconfig.deploywars(hostconfig.java:773)
    at org.apache.catalina.startup.hostconfig.deployapps(hostconfig.java:427)
    at org.apache.catalina.startup.hostconfig.start(hostconfig.java:1577)
    at org.apache.catalina.startup.hostconfig.lifecycleevent(hostconfig.java:309)
    at org.apache.catalina.util.lifecyclebase.firelifecycleevent(lifecyclebase.java:123)
    at org.apache.catalina.util.lifecyclebase.setstateinternal(lifecyclebase.java:424)
    at org.apache.catalina.util.lifecyclebase.setstate(lifecyclebase.java:367)
    at org.apache.catalina.core.containerbase.startinternal(containerbase.java:929)
    at org.apache.catalina.core.standardhost.startinternal(standardhost.java:831)
    at org.apache.catalina.util.lifecyclebase.start(lifecyclebase.java:183)
    at org.apache.catalina.core.containerbase$startchild.call(containerbase.java:1377)
    at org.apache.catalina.core.containerbase$startchild.call(containerbase.java:1367)
    at java.util.concurrent.futuretask.run(futuretask.java:266)
    at org.apache.tomcat.util.threads.inlineexecutorservice.execute(inlineexecutorservice.java:75)
    at java.util.concurrent.abstractexecutorservice.submit(abstractexecutorservice.java:134)
    at org.apache.catalina.core.containerbase.startinternal(containerbase.java:902)
    at org.apache.catalina.core.standardengine.startinternal(standardengine.java:262)
    at org.apache.catalina.util.lifecyclebase.start(lifecyclebase.java:183)
    at org.apache.catalina.core.standardservice.startinternal(standardservice.java:423)
    at org.apache.catalina.util.lifecyclebase.start(lifecyclebase.java:183)
    at org.apache.catalina.core.standardserver.startinternal(standardserver.java:928)
    at org.apache.catalina.util.lifecyclebase.start(lifecyclebase.java:183)
    at org.apache.catalina.startup.catalina.start(catalina.java:638)
    at sun.reflect.nativemethodaccessorimpl.invoke0(native method)
    at sun.reflect.nativemethodaccessorimpl.invoke(nativemethodaccessorimpl.java:62)
    at sun.reflect.delegatingmethodaccessorimpl.invoke(delegatingmethodaccessorimpl.java:43)
    at java.lang.reflect.method.invoke(method.java:498)
    at org.apache.catalina.startup.bootstrap.start(bootstrap.java:350)
    at org.apache.catalina.startup.bootstrap.main(bootstrap.java:492)
caused by: java.net.unknownhostexception: xxxxx: xxxxx: name or service not known
    at java.net.inetaddress.getlocalhost(inetaddress.java:1506)
    at org.quartz.simpl.simpleinstanceidgenerator.generateinstanceid(simpleinstanceidgenerator.java:34)
    ... 76 common frames omitted
caused by: java.net.unknownhostexception: xxxxx: name or service not known
    at java.net.inet6addressimpl.lookupallhostaddr(native method)
    at java.net.inetaddress$2.lookupallhostaddr(inetaddress.java:929)
    at java.net.inetaddress.getaddressesfromnameservice(inetaddress.java:1324)
    at java.net.inetaddress.getlocalhost(inetaddress.java:1501)
    ... 77 common frames omitted

解决方案

如异常消息里所示，couldn't get host name!， xxxxx: name or service not known，可以推断是xxxxx这个hostname无法解析，将/etc/hosts文件打开，确实没有解析这个域名，添加一行域名解析：127.0.0.1 xxxxx

保存

然后重启tomcat，就可以正常启动了

后来跟运维人员确认了，他们确实中间调整过服务器的信息，导致了这个 hostname解析异常。。

关于tomcat一些启动错误的解决

一、eclipse tomcat 启动超时

错误内容: server jboss v4.0 at localhost was unable to start within 50 seconds. if the server requires more time, try increasing the timeout in the server editor

解决办法：修改路径

进入eclipse的工作空间 .metadata.plugins\org.eclipse.wst.server.core目录，修改目录内文件server.xml

找到 start-timeout=”45” 并设高 start-timeout=”450”

二、eclipse无法加载tomcat

错误内容：删除tomcat后，重新导入tomcat，但无法加载tomcat

解决方案：

1.退出 eclipse

2.到[工程目录下]/.metadata/.plugins/org.eclipse.core.runtime

3.把org.eclipse.wst.server.core.prefs和org.eclipse.jst.server.tomcat.core.prefs这两个文件去掉

4.重启eclipse

三、tomcat运行没有生成class文件

错误内容: 项目编译没有生产class文件

解决方案：

1,选择: project->clean..->选第2个clean select project, 勾上start build immediatelly

2,如果项目里引了某个不用的jar包，而那个包又被你删了，就会出现不报错但怎么也编译不出来class文件的情况，可 以把所有包都删除,然后一个一个的再引入(需要的),不要一下子把所有包都引入来,没用的可能会引起不良后果.

步骤：选中项目——右键——properties——选中下面红色区域——选中里面的jar包——点remover

3,删除现在的项目,提前设置好编译文件输出路径，重新导入源文件，设置myeclipse为保存时编译，然后在保存的时候就可以自动编译了，步骤：选中项目->点右键properties->java build path->source->…/web-inf/src的output folder不要默认，编辑让它指向../web-inf/classes

4,再就是最重要的要看工程下面是否缺少了work目录,由于cvs控制时不把work加如版本,所以checkout后没有这个目录,要手工加上有的工程就能自动编译,最开始的时候,我只找到了前面7个方法,但是他们都没有解决我的问题.无意中我打开了”problems”标签,发现里面说缺少work目录,手工加上,然后刷新项目就可以了..classpath这个xml文件要仔细看

四、tomcat启动 报 permgen space

错误内容: 内存溢出

解决方案1:

1,重启tomcat

2,先停止运行,双击tomcat，打开open launch configuration,然后 在arguments中的vm arguments的编辑中的上面添加- xms256m -xmx1024m -xx:permsize=64m -xx:maxpermsize=128m，在重启就好了。

解决方案2: 设置default vm arguments，打开myeclipse—>windows —>preferences—>java—installed jres
—>点击正在使用的jdk—>edit—>default vm arguments 输 入-xms64m -xmx256m

五、tomcat启动 报 address already in use: jvm_bind”

错误内容: 8005端口被占用

解决方案一(推荐)，修改tomcat/conf/server.xml文件

打开server.xml

将<server port="8005" shutdown="shutdown">中8005改成不常用的端口号即可，比如9876

解决方案二，将占用8005的进程强行结束

(1) 在“运行”中输入cmd

(2)在启动的窗口中输入netstat -ano，就可以看到所有端口占用的情况，记下占用8005端口的程序的pid

(3)打开“任务管理器”，点击菜单栏的“查看”，再点击“选择列”，选上“pid（进程标识符）” 或者在cmd中输入tasklist命令，回车，查看

(4)在进程中找个相应的pid值，结束进程即可

总结

以上为个人经验，希望能给大家一个参考，也希望大家多多支持代码网。