今天发现虚拟主机上Tomcat启动后，报如下错误： SEVERE: IOException while loading persisted sessions: Java.io.EOFException
java.io.EOFException
at java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2228)
at java.io.ObjectInputStream$BlockDataInputStream.readShort(ObjectInputStream.java:2694)
at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:761)
at java.io.ObjectInputStream.(ObjectInputStream.java:277)
at org.apache.catalina.util.CustomObjectInputStream.(CustomObjectInputStream.java:57)
at org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:361)
at org.apache.catalina.session.StandardManager.load(StandardManager.java:320)
at org.apache.catalina.session.StandardManager.start(StandardManager.java:636)
at org.apache.catalina.core.ContainerBase.setManager(ContainerBase.java:431)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4155)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:759)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:739)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:524)
at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:608)
at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:535)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:470)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1122)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:310)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1021)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:718)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1013)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:442)
at org.apache.catalina.core.StandardService.start(StandardService.java:450)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:709)
at org.apache.catalina.startup.Catalina.start(Catalina.java:551)
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:585)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:294)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:432)
......解决方法：
将work目录下面的文件清空，主要是*.ser文件，或者只是删除掉session.ser亦可。
说明：
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，其实就是保存在硬盘上的session数据读取失败。异常是tomcat本身的问题，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，问题不大。但是如果不处理一下，每次启动都会出现这个问题。