java.io.NotSerializedException

Question

我正在使用 primefaces 和 web 2.0 进行 j2ee目前因此错误而卡在此处

    java.io.NotSerializableException: org.apache.derby.client.am.PreparedStatement40
java.io.ObjectOutputStream.writeObject0(Unknown Source)
java.io.ObjectOutputStream.defaultWriteFields(Unknown Source)
java.io.ObjectOutputStream.writeSerialData(Unknown Source)
java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source)
java.io.ObjectOutputStream.writeObject0(Unknown Source)
java.io.ObjectOutputStream.writeObject(Unknown Source)
java.util.HashMap.writeObject(Unknown Source)
sun.reflect.GeneratedMethodAccessor21.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
java.io.ObjectStreamClass.invokeWriteObject(Unknown Source)
java.io.ObjectOutputStream.writeSerialData(Unknown Source)
java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source)
java.io.ObjectOutputStream.writeObject0(Unknown Source)
java.io.ObjectOutputStream.defaultWriteFields(Unknown Source)
java.io.ObjectOutputStream.writeSerialData(Unknown Source)
java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source)
java.io.ObjectOutputStream.writeObject0(Unknown Source)
java.io.ObjectOutputStream.writeArray(Unknown Source)
java.io.ObjectOutputStream.writeObject0(Unknown Source)
java.io.ObjectOutputStream.writeObject(Unknown Source)
java.util.HashMap.writeObject(Unknown Source)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
java.io.ObjectStreamClass.invokeWriteObject(Unknown Source)
java.io.ObjectOutputStream.writeSerialData(Unknown Source)
java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source)
java.io.ObjectOutputStream.writeObject0(Unknown Source)
java.io.ObjectOutputStream.writeObject(Unknown Source)
com.sun.faces.renderkit.ClientSideStateHelper.doWriteState(ClientSideStateHelper.java:293)
com.sun.faces.renderkit.ClientSideStateHelper.writeState(ClientSideStateHelper.java:167)
com.sun.faces.renderkit.ResponseStateManagerImpl.writeState(ResponseStateManagerImpl.java:123)
com.sun.faces.application.StateManagerImpl.writeState(StateManagerImpl.java:155)
com.sun.faces.application.view.WriteBehindStateWriter.flushToWriter(WriteBehindStateWriter.java:221)
com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:397)
com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:126)
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:127)
com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:313)

一些谷歌搜索说我需要实现我在这个函数中使用的所有类的可序列化。但我已经做到了。这个错误似乎很普遍，我无法弄清楚这一点。并且不太理解下面的错误

    org.apache.derby.client.am.PreparedStatement40

Answer 1

看起来您正在将(JDBC)PreparedStatement存储在正在序列化的对象之一中(可能是 session 的一部分)。您应该将其移动到其他地方或将其标记为暂时的(不要忘记当它恢复时它会丢失)。