网站建设公司一站通系统简单,昆明网站公司建设,成都网站优化公司,二级建造师网官网文章目录 问题一#xff1a;Tomcat的startup.bat启动后出现乱码问题二#xff1a;一闪而退之端口占用问题三#xff1a;非端口问题的一闪而退问题四#xff1a;服务器的乱码和跨域问题问题五: 在tomcat\webapps\下创建文件夹为什么tomcat重启就会丢失问题六#xff1a;Tom… 文章目录 问题一Tomcat的startup.bat启动后出现乱码问题二一闪而退之端口占用问题三非端口问题的一闪而退问题四服务器的乱码和跨域问题问题五: 在tomcat\webapps\下创建文件夹为什么tomcat重启就会丢失问题六Tomcat启动报java.io.EOFException错误问题七解决跨域问题 问题一Tomcat的startup.bat启动后出现乱码 找到Tomcat文件下的conf目录修改logging.properties文件中
java.util.logging.ConsoleHandler.encoding对应的值为GBK重启Tomcat你看到的启动页面是这样的话说明乱码问题已经解决问题二一闪而退之端口占用
启动Tomcat出现一闪而退的现象其实还是可以看到Tomcat终端输出的日志
这时你需要迅速截图捕获异常太南了。最正确的方法是查看日志找到Tomcat目录下的logs目录中catalina当天的日志
我这里找到的是C:\develop\Tomcat\apache-tomcat-8.5.47\logs\catalina.2019-10-17.log
在日志中可以看到类似这样的输出Address already in use: bind说明是端口占用了在Tomcat目录找到conf目录中的server.xml配置文件在Connector标签中修改Tomcat启动端口Connector port9080 protocolHTTP/1.1connectionTimeout20000redirectPort8443 /问题三非端口问题的一闪而退
启动Tomcat直接一闪而退在logs目录的日志里面找不到错误信息
这个时候很大可能是因为Tomcat与JDK版本不对应导致的有可能你的Tomcat是Tomcat9版而你的JDK是1.7版本的
Tomcat与JDK版本对应关系可以参考这篇文章Tomcat与JDK版本对应关系Tomcat各版本特性问题四服务器的乱码和跨域问题 问题五: 在tomcat\webapps\下创建文件夹为什么tomcat重启就会丢失
1.修改/tomcat/conf/web.xml文件
servletservlet-namedefault/servlet-nameservlet-classorg.apache.catalina.servlets.DefaultServlet/servlet-classinit-paramparam-namedebug/param-nameparam-value0/param-value/init-paraminit-paramparam-namelistings/param-nameparam-valuetrue/param-value/init-paramload-on-startup1/load-on-startup
/servlet2.修改/tomcat/conf/server.xml文件
Host namelocalhost appBasewebapps unpackWARstrue autoDeploytruexmlValidationfalse xmlNamespaceAwarefalse
!-- SingleSignOn valve, share authentication between web applicationsDocumentation at: /docs/config/valve.html --
!-- Valve classNameorg.apache.catalina.authenticator.SingleSignOn / --
!-- Access log processes all example. Documentation at: /docs/config/valve.html --
!-- Valve classNameorg.apache.catalina.valves.AccessLogValve directorylogs prefixlocalhost_access_log. suffix.txt patterncommon resolveHostsfalse/ --
!--Context path/ser docBaseD:\project\myProject\editor\WebRoot/Context--!--Context path/mvc docBaseD:\project\myProject\你的项目名\WebRoot /Context--
/Host3.总结
重新redeploy的时候tomcat会同步你本地的文件 因为本地没有相应的文件夹导致文件丢失。
这只是在开发过程中会遇到的问题实际应用中tomcat会startup.bat/shutdown.bat。
我们这样做其实就是给工程配置虚拟路径这样tomcat在启动的时候直接找到工程了,
上传的图片就不会仅仅只在/tomcat/webapps/目录而直接到了你的工程里,
不管你怎样重启项目或者清理缓存上传的文件依然存在!问题六Tomcat启动报java.io.EOFException错误
信息如下
2019-11-25 10:24:05 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory ROOT
2019-11-25 10:24:05 org.apache.catalina.session.StandardManager doLoad
严重: IOException while loading persisted sessions: java.io.EOFException
java.io.EOFExceptionat java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2280)at java.io.ObjectInputStream$BlockDataInputStream.readShort(ObjectInputStream.java:2749)at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:779)at java.io.ObjectInputStream.init(ObjectInputStream.java:279)at org.apache.catalina.util.CustomObjectInputStream.init(CustomObjectInputStream.java:58)at org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:246)at org.apache.catalina.session.StandardManager.load(StandardManager.java:204)at org.apache.catalina.session.StandardManager.startInternal(StandardManager.java:465)at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140)at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5025)at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140)at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:812)at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:787)at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:570)at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1010)at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:933)at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:468)at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1267)at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:308)at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:89)at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:328)at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:308)at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1043)at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:738)at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140)at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1035)at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:289)at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140)at org.apache.catalina.core.StandardService.startInternal(StandardService.java:442)at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140)at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:674)at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140)at org.apache.catalina.startup.Catalina.start(Catalina.java:596)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)at java.lang.reflect.Method.invoke(Method.java:597)at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:303)at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:431)
2019-11-25 10:24:05 org.apache.catalina.session.StandardManager startInternal
严重: Exception loading sessions from persistent storage
java.io.EOFExceptionat java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2280)at java.io.ObjectInputStream$BlockDataInputStream.readShort(ObjectInputStream.java:2749)at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:779)at java.io.ObjectInputStream.init(ObjectInputStream.java:279)at org.apache.catalina.util.CustomObjectInputStream.init(CustomObjectInputStream.java:58)at org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:246)at org.apache.catalina.session.StandardManager.load(StandardManager.java:204)at org.apache.catalina.session.StandardManager.startInternal(StandardManager.java:465)at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140)at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5025)at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140)at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:812)at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:787)at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:570)at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1010)at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:933)at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:468)at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1267)at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:308)at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:89)at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:328)at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:308)at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1043)at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:738)at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140)at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1035)at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:289)at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140)at org.apache.catalina.core.StandardService.startInternal(StandardService.java:442)at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140)at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:674)at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140)at org.apache.catalina.startup.Catalina.start(Catalina.java:596)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)at java.lang.reflect.Method.invoke(Method.java:597)at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:303)at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:431)
2019-11-25 10:24:05 org.apache.catalina.startup.HostConfig deployDirectory错误的原因是:EOFException表示输入过程中意外地到达文件尾或流尾的信号,导致从session中获取数据失败。
这是由于tomcat上次非正常关闭时有一些活动session被持久化表现为一些临时文件
在重启时tomcat尝试去恢复这些session的持久化数据但又读取失败造成的。此异常不影响系统的使用。可以看到,我正在使用的项目中多了一个sessions.ser文件,把此文件删除即可tomcat即可正常的使用.
如果你的项目中不知道是哪个项目引起的.就把Catalina目录下的所有文件删除,即可.问题七解决跨域问题
protected void doOptions(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {resp.setHeader(Access-Control-Allow-Credentials, true);resp.setHeader(Access-Control-Allow-Origin, req.getHeader(origin));resp.setHeader(Access-Control-Allow-Methods, *);resp.setHeader(Access-Control-Allow-Headers, x-requested-with,content-type);resp.setContentType(application/json);resp.setCharacterEncoding(utf-8);super.doOptions(req, resp);}
