WriteAbortedException 和 NotSerializableException 产生的原因

[kevinc]

在jbuilder中运行时出现以下输出，是什么原因造成的，其中com.pdwy.util.db.DBConnect为保存在session中的对象。


IOException while loading persisted sessions: java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: com.pdwy.util.db.DBConnect

java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: com.pdwy.util.db.DBConnect

at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1278)

at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1845)

at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1769)

at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1646)

at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1274)

at java.io.ObjectInputStream.readObject(ObjectInputStream.java:324)

at java.util.ArrayList.readObject(ArrayList.java:547)

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:324)

at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:838)

at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1746)

at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1646)

at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1274)

at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1845)

at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1769)

at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1646)

at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1274)

at java.io.ObjectInputStream.readObject(ObjectInputStream.java:324)

at org.apache.catalina.session.StandardSession.readObject(StandardSession.java:1369)

at org.apache.catalina.session.StandardSession.readObjectData(StandardSession.java:864)

at org.apache.catalina.session.StandardManager.load(StandardManager.java:440)

at org.apache.catalina.session.StandardManager.start(StandardManager.java:655)

at org.apache.catalina.core.StandardContext.start(StandardContext.java:3571)

at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:821)

at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:807)

at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:579)

at org.apache.catalina.core.StandardHostDeployer.addChild(StandardHostDeployer.java:700)

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:324)

at org.apache.commons.beanutils.MethodUtils.invokeMethod(MethodUtils.java:252)

at org.apache.commons.digester.SetNextRule.end(SetNextRule.java:256)

at org.apache.commons.digester.Rule.end(Rule.java:276)

at org.apache.commons.digester.Digester.endElement(Digester.java:1058)

at org.apache.crimson.parser.Parser2.maybeElement(Parser2.java:1683)

at org.apache.crimson.parser.Parser2.parseInternal(Parser2.java:634)

at org.apache.crimson.parser.Parser2.parse(Parser2.java:333)

at org.apache.crimson.parser.XMLReaderImpl.parse(XMLReaderImpl.java:448)

at org.apache.commons.digester.Digester.parse(Digester.java:1567)

at org.apache.catalina.core.StandardHostDeployer.install(StandardHostDeployer.java:385)

at org.apache.catalina.core.StandardHost.install(StandardHost.java:803)

at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:442)

at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:399)

at org.apache.catalina.startup.HostConfig.start(HostConfig.java:718)

at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:358)

at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:166)

at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1196)

at org.apache.catalina.core.StandardHost.start(StandardHost.java:738)

at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1188)

at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:347)

at org.apache.catalina.core.StandardService.start(StandardService.java:497)

at org.apache.catalina.core.StandardServer.start(StandardServer.java:2190)

at org.apache.catalina.startup.Catalina.start(Catalina.java:512)

at org.apache.catalina.startup.Catalina.execute(Catalina.java:400)

at org.apache.catalina.startup.Catalina.process(Catalina.java:180)

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:324)

at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:203)

[ChDw]

com.pdwy.util.db.DBConnect 没有继承Serialable接口

[kevinc]

必须继承吗，现在程序还可以运行，只是要报出这个错误，难道session的对象都要继承Serialable接口,不继承有什么后果。

[ChDw]

他只是在Load一些以前保留下来的没有失效的Session

应该没有太大的问题吧