我有一个使用PasswordEncryptor作为其字段之一的类org.jasypt.util.password.StrongPasswordEncryptor，因为我试图使该应用程序“可群集”，因此所有类都需要可序列化以进行会话复制，但是每当访问PasswordEncryptor时，我都会遇到以下例外：
Caused by: java.io.NotSerializableException: org.jasypt.util.password.StrongPasswordEncryptor
at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:891)
at org.jboss.marshalling.river.RiverMarshaller.doWriteFields(RiverMarshaller.java:1063)
at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1019)
at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:885)
at org.jboss.marshalling.river.RiverMarshaller.doWriteFields(RiverMarshaller.java:1063)
at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1019)
at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:885)
at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:680)
at org.jboss.marshalling.AbstractObjectOutput.writeObject(AbstractObjectOutput.java:62)
at org.jboss.marshalling.AbstractMarshaller.writeObject(AbstractMarshaller.java:119)
at org.jboss.as.clustering.SimpleMarshalledValue.getBytes(SimpleMarshalledValue.java:74)
at org.jboss.as.clustering.SimpleMarshalledValue.writeObject(SimpleMarshalledValue.java:172)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.6.0_34]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.6.0_34]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.6.0_34]
at java.lang.reflect.Method.invoke(Method.java:622) [rt.jar:1.6.0_34]
at org.jboss.marshalling.reflect.SerializableClass.callWriteObject(SerializableClass.java:175)
at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1007)
at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:885)
at org.jboss.marshalling.AbstractObjectOutput.writeObject(AbstractObjectOutput.java:62)
at org.jboss.marshalling.AbstractMarshaller.writeObject(AbstractMarshaller.java:119)
at org.infinispan.marshall.MarshallUtil.marshallMap(MarshallUtil.java:60)
at org.infinispan.marshall.exts.MapExternalizer.writeObject(MapExternalizer.java:63)
at org.infinispan.marshall.exts.MapExternalizer.writeObject(MapExternalizer.java:47)
at org.infinispan.marshall.jboss.ExternalizerTable$ExternalizerAdapter.writeObject(ExternalizerTable.java:406)
at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:145)
at org.jboss.marshalling.AbstractObjectOutput.writeObject(AbstractObjectOutput.java:62)
at org.jboss.marshalling.AbstractMarshaller.writeObject(AbstractMarshaller.java:119)
at org.infinispan.atomic.AtomicHashMap$Externalizer.writeObject(AtomicHashMap.java:229)
at org.infinispan.atomic.AtomicHashMap$Externalizer.writeObject(AtomicHashMap.java:226)
at org.infinispan.marshall.jboss.ExternalizerTable$ExternalizerAdapter.writeObject(ExternalizerTable.java:406)
at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:145)
at org.jboss.marshalling.AbstractObjectOutput.writeObject(AbstractObjectOutput.java:62)
at org.jboss.marshalling.AbstractMarshaller.writeObject(AbstractMarshaller.java:119)
at org.infinispan.marshall.jboss.AbstractJBossMarshaller.objectToObjectStream(AbstractJBossMarshaller.java:86)
at org.infinispan.marshall.VersionAwareMarshaller.objectToObjectStream(VersionAwareMarshaller.java:151)
at org.infinispan.marshall.AbstractDelegatingMarshaller.objectToObjectStream(AbstractDelegatingMarshaller.java:44)
at org.infinispan.marshall.MarshalledValue.serialize0(MarshalledValue.java:119)
... 117 more
Caused by: an exception which occurred:
in field spe
in field bean
in object java.util.HashMap@b629b463
in object org.jboss.as.clustering.SimpleMarshalledValue@b629b463
in object org.infinispan.util.FastCopyHashMap@43ad73a2
in object org.infinispan.atomic.AtomicHashMap@4fd181fe
in object org.infinispan.marshall.MarshalledValue@4fd181fe
in object org.infinispan.commands.write.PutKeyValueCommand@ce32d716
in object org.infinispan.commands.tx.PrepareCommand@293098b
我已经尝试过将字段标记为
transient，如下所示：import java.io.Serializable;
import org.jasypt.util.password.StrongPasswordEncryptor;
public class PasswordEncryptor implements Serializable {
private static final long serialVersionUID = 1L;
//Need to mark transient as its not serializable
private transient StrongPasswordEncryptor spe = new StrongPasswordEncryptor();
public String encrypt(String password){
return spe.encryptPassword(password);
}
public boolean isPasswordCorrect(String enteredPassword, String passwordHash){
return spe.checkPassword(enteredPassword, passwordHash);
}
}
而且我不能使用包装器将StrongPasswordEncryptor子类化，因为它是最终的
还有其他方法吗？ （最好不引入任何其他库）
最佳答案
从Infinispan的角度来看，控制类如何进行序列化（尤其是在类是最终类或无法修改类时）的最佳方法是为要序列化的类提供自己的Infinispan外在器。 Infinispan的用户指南包含有关how to Plug Infinispan with User-Defined Externalizers的整章内容，解释了其优点，其中包括减少有效负载，加快序列化并解决无法修改要序列化的类时的问题。除了文档中的示例，Infinispan source code (ASL2)还包含大量的Externalizer示例，可以满足您的需要。
更具体地说，用于PasswordEncryptor的Externalizer无需在writeObject中编写任何内容，而只需在readObject中实例化PasswordEncryptor。