java - Tomcat - 防止 session 持久化

Question

我在重新启动 tomcat 时收到 IOException。我按照 exception loading sessions from persistent storage 中的建议尝试了各种解决方案

他们都没有解决问题。我尝试取消注释 <Manager pathname=""/>在 context.xml 中。没有帮助。

建议的另一个解决方案是使类实现可序列化。我不想那样做。

我的目标是让 Tomcat 不保留这些 session 。我正在使用 Tomcat 7.0.54。

以下是堆栈跟踪。请帮忙。

`SEVERE: IOException while loading persisted sessions:
     java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException:     com.comp.cloud.portal.zCompHD
     java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: com.comp.cloud.portal.zCompHD
     at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1354)
     at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370)
     at java.util.LinkedList.readObject(LinkedList.java:1136)
     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:606)
     at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
     at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1893)
     at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798)
     at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
     at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1990)
     at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1915)
     at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798)
     at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
     at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370)
     at java.util.HashMap.readObject(HashMap.java:1183)
     at sun.reflect.GeneratedMethodAccessor18.invoke(Unknown Source)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
     at java.lang.reflect.Method.invoke(Method.java:606)
     at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
     at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1893)
     at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798)
     at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
     at org.apache.catalina.session.StandardSession.readObject(StandardSession.java:1619)
     at org.apache.catalina.session.StandardSession.readObjectData(StandardSession.java:1084)
     at org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:282)
     at org.apache.catalina.session.StandardManager.load(StandardManager.java:202)
     at org.apache.catalina.session.StandardManager.startInternal(StandardManager.java:489)
     at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
     at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5476)
     at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
     at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
     at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
     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)

Answer 1

解决此问题的另一种方法是使用 Spring Session，它提供了一个替换 HttpSession 对象，可以以可配置的方式持久化。有多种持久化方法可用，例如Redis、JDBC 或内存中的 Map。默认情况下，他们(或至少其中一些)可能期望项目是可序列化的，但实现更加可定制，因此您可以设置一个序列化程序来剥离不可序列化的对象并留下其余的(例如)。