SSM启动报错

错误日志：while loading persisted sessions: java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: com.fh.entity.system.Menu

java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: com.fh.entity.system.Menu。

at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1333)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
    at java.util.ArrayList.readObject(ArrayList.java:593)
    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 java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1849)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
    at org.apache.catalina.session.StandardSession.readObject(StandardSession.java:1597)
    at org.apache.catalina.session.StandardSession.readObjectData(StandardSession.java:1062)
    at org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:284)
    at org.apache.catalina.session.StandardManager.load(StandardManager.java:204)
    at org.apache.catalina.session.StandardManager.startInternal(StandardManager.java:491)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5464)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:634)
    at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1230)
    at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1876)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
    at java.util.concurrent.FutureTask.run(FutureTask.java:138)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:619)
Caused by: java.io.NotSerializableException: com.fh.entity.system.Menu
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1156)
    at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326)
    at java.util.ArrayList.writeObject(ArrayList.java:570)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1461)
    at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
    at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326)
    at org.apache.catalina.session.StandardSession.writeObject(StandardSession.java:1673)
    at org.apache.catalina.session.StandardSession.writeObjectData(StandardSession.java:1079)
    at org.apache.catalina.session.StandardManager.doUnload(StandardManager.java:432)
    at org.apache.catalina.session.StandardManager.unload(StandardManager.java:353)
    at org.apache.catalina.session.StandardManager.stopInternal(StandardManager.java:518)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232)
    at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5643)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232)
    at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1575)
    at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1564)
    ... 5 more
2017-9-7 13:52:29 org.apache.catalina.session.StandardManager startInternal

这个错误日志还是不影响我的项目执行，解决方案就是删除tomcat 下的项目然后重新ADD一下就好了。如果有哪位高人看到这个文章并知道原因，还请评论授业解惑下~

小生先行谢过啦！

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今天用tomcat添加项目时报找不到对应的web项目，不能添加，最后我把MyEclipse关了，重启就好了，可能他傻了，没有及时更新到状态吧。