錯誤代碼如下：
嚴重: IOException while loading persisted sessions: java.io.EOFException java.io.EOFException at java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2325) at java.io.ObjectInputStream$BlockDataInputStream.readShort(ObjectInputStream.java:2794) at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:801) at java.io.ObjectInputStream.<init>(ObjectInputStream.java:299) at org.apache.catalina.util.CustomObjectInputStream.<init>(CustomObjectInputStream.java:58) at org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:226) at org.apache.catalina.session.StandardManager.load(StandardManager.java:183) at org.apache.catalina.session.StandardManager.startInternal(StandardManager.java:473) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5293) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:726) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:702) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:698) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1119) at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1760) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:744) 一月 02, 2014 2:38:27 下午 org.apache.catalina.session.StandardManager startInternal 嚴重: Exception loading sessions from persistent storage java.io.EOFException at java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2325) at java.io.ObjectInputStream$BlockDataInputStream.readShort(ObjectInputStream.java:2794) at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:801) at java.io.ObjectInputStream.<init>(ObjectInputStream.java:299) at org.apache.catalina.util.CustomObjectInputStream.<init>(CustomObjectInputStream.java:58) at org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:226) at org.apache.catalina.session.StandardManager.load(StandardManager.java:183) at org.apache.catalina.session.StandardManager.startInternal(StandardManager.java:473) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5293) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:726) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:702) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:698) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1119) at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1760) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:744) 一月 02, 2014 2:38:27 下午 org.apache.catalina.startup.HostConfig deployDirectory
錯誤的原因是:EOFException表示輸入過程中意外地到達文件尾或流尾的信號,導致從session中獲取數據失敗。這是由於tomcat上次非正常關閉時有一些活動session被持久化（表現為一些臨時文件），在重啟時，tomcat嘗試去恢復這些session的持久化數據但又讀取失敗造成的。此異常不影響系統的使用。
可以看到,我正在使用的day56項目中多了一個sessions.ser文件,把此文件刪除即可tomcat即可正常的使用.
如果你的項目中不知道是哪個項目引起的.就把Catalina目錄下的所有文件刪除,即可.