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我在启动我的 web 应用程序时遇到了这个异常，它在 apache tomcat 6.0.29 中运行任何人都可以帮助我为什么会出现这样的错误：如何解决这个问题。请帮助我了解出现此错误的原因

SEVERE: IOException while loading persisted sessions: java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: com.oe.ws.beans.CardBean
java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: com.oe.ws.beans.CardBean
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:368)
    at java.util.ArrayList.readObject(ArrayList.java:696)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:616)
    at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:988)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1865)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1770)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1346)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:368)
    at org.apache.catalina.session.StandardSession.readObject(StandardSession.java:1475)
    at org.apache.catalina.session.StandardSession.readObjectData(StandardSession.java:977)
    at org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:394)
    at org.apache.catalina.session.StandardManager.load(StandardManager.java:321)
    at org.apache.catalina.session.StandardManager.start(StandardManager.java:643)
    at org.apache.catalina.core.ContainerBase.setManager(ContainerBase.java:438)
    at org.apache.catalina.core.StandardContext.start(StandardContext.java:4559)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:546)
    at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:905)
    at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:740)
    at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:500)
    at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1277)
    at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:321)
    at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
    at org.apache.catalina.core.StandardHost.start(StandardHost.java:785)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
    at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:445)
    at org.apache.catalina.core.StandardService.start(StandardService.java:519)
    at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:581)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:616)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Caused by: java.io.NotSerializableException: com.oe.ws.beans.CardBean
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1180)
    at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:346)
    at java.util.ArrayList.writeObject(ArrayList.java:673)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:616)
    at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:959)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1480)
    at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1416)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174)
    at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:346)
    at org.apache.catalina.session.StandardSession.writeObject(StandardSession.java:1551)
    at org.apache.catalina.session.StandardSession.writeObjectData(StandardSession.java:994)
    at org.apache.catalina.session.StandardManager.doUnload(StandardManager.java:523)
    at org.apache.catalina.session.StandardManager.unload(StandardManager.java:469)
    at org.apache.catalina.session.StandardManager.stop(StandardManager.java:673)
    at org.apache.catalina.core.StandardContext.stop(StandardContext.java:4774)
    at org.apache.catalina.core.ContainerBase.removeChild(ContainerBase.java:924)
    at org.apache.catalina.startup.HostConfig.undeployApps(HostConfig.java:1319)
    at org.apache.catalina.startup.HostConfig.stop(HostConfig.java:1290)
    at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:323)
    at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
    at org.apache.catalina.core.ContainerBase.stop(ContainerBase.java:1086)
    at org.apache.catalina.core.ContainerBase.stop(ContainerBase.java:1098)
    at org.apache.catalina.core.StandardEngine.stop(StandardEngine.java:450)
    at org.apache.catalina.core.StandardService.stop(StandardService.java:587)
    at org.apache.catalina.core.StandardServer.stop(StandardServer.java:744)
    at org.apache.catalina.startup.Catalina.stop(Catalina.java:648)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:615)
    ... 6 more
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1 回答 1

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尝试删除这个：

${catalina.home}/work/Catalina/localhost/<app>/SESSION.ser where app is your application.

并重新启动。

如果这不起作用，或者您选择不每次都这样做，请确保您的 Dao 或其他类（如CardBean）如果要序列化，则必须实现 java.io.Serializable 接口（您的堆栈跟踪表明已尝试将类的实例写入对象流）。

要序列化的实例以及该实例的对象图中的所有对象都必须是可序列化的。

来自 Serializable 的 javadocs，

Serializability of a class is enabled by the class implementing the java.io.Serializable interface...When traversing a graph, an object may be encountered that does not support the Serializable interface. In this case the NotSerializableException will be thrown and will identify the class of the non-serializable object.

于 2013-09-26T05:39:36.743 回答