serializable

问题 While executing a .aspx page i am getting the following error. Can you please let me know how can i solve it. Unable to serialize the session state. In 'StateServer' and 'SQLServer' mode, ASP.NET will serialize the session state objects, and as a result non-serializable objects or MarshalByRef objects are not permitted. The same restriction applies if similar serialization is done by the custom session state store in 'Custom' mode. Description: An unhandled exception occurred during the

问题 While executing a .aspx page i am getting the following error. Can you please let me know how can i solve it. Unable to serialize the session state. In 'StateServer' and 'SQLServer' mode, ASP.NET will serialize the session state objects, and as a result non-serializable objects or MarshalByRef objects are not permitted. The same restriction applies if similar serialization is done by the custom session state store in 'Custom' mode. Description: An unhandled exception occurred during the

问题 To make a class serializable we do the following: class A implements Serializable { transient Object a; } And not this: serializable class A { transient Object a; } Why, if we want to make a class serializable, do we implement a special interface . And if we want to exclude some fields we use the keyword transient ? Why aren't special keywords used in both cases? I mean were there any reasons to make the same thing in different ways? I know, there is no such keyword as serializable but why

问题 What des it mean by the following sentence DependencyObjects are not marked as serializable To my knowledge, I can have a class which inherits from DependencyObject...and I can mark it as serializable. Anyway serialize property is not inheritable. Could someone make me clear. Thanks in advance. 回答1: This means that a class that derives from DependencyObject cannot be serialized with standard serializers. As a workaround you could use XamlReader/XamlWriter as shown in this article. 回答2:

问题 Class members (static) cannot be serialized. The reason is obvious - they are not held by the object(s) of the class. Since they are associated with the class (rather than the object of that class), they are stored separately from the object. serialVersionUID is declared as a static field within a class that implements the java.io.Serializable interface something like the following. private static final long serialVersionUID = 1L; It is used as a version control in a Serializable class. If it

问题 I am working on a project, it requires to send directory information from one client to another on a network. so tell me, can i get this information on another client by only sending File class' object? please explain me the reason for your YES or NO. Updated Question i am posting the code which i have tried.... The Client Code:- public class FileClient{ public static void main(String str[]){ try{ Socket sock = new Socket("10.16.10.82",4000); /* Socket sock = new Socket("127.0.0.1",4000); */

问题 I have a class in my Android app that I've made Parcelable so that it can be passed between Activities. I would like to be able to save this object to the filesystem. It seems that since I've already implemented Parcelable, it would make sense to pipe the output of this to the filesystem and read it back later. Is there a correct way to do this? Or must I implement both Parcelable and Serialiazble if I want to both pass the object between Activities and also save it to the filesystem? 回答1:

问题 I have the following class: import java.awt.Color; import java.util.Vector; public class MyClass { private ImageSignature imageSignature; private class ImageSignature implements Serializable { private static final long serialVersionUID = -6552319171850636836L; private Vector<Color> colors = new Vector<Color>(); public void addColor(Color color) { colors.add(color); } public Vector<Color> getColors() { return colors; } } // Will be called after imageSignature was set, obviously public String

问题 I currently doing a work with struts2 and this error suddenly appears. Some cache of my objects is not working. I use JBoss 5 and struts2 : struts2-core-2.3.4.1.jar xwork-core-2.3.4.1.jar The stack trace is here : http://pastebin.com/QpPV01wX this is some snippet : java.io.NotSerializableException: com.opensymphony.xwork2.inject.ContainerImpl$ConstructorInjector at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1164) at java.io.ObjectOutputStream.writeObject

问题 got a little problem im hoping someone can enlighten me on. Trying to serialise a Java Object of my own creation which is made up of other Java Objects (Again of my own creation). It was running fine until I get this error when the jdbc attempts to run the PreparedStatement storing the Object as a blob. Im running MySQL as the database and have checked that all my objects which im attempting to store in the blob field are defined as "implements Serializable". I have attempted to try a normal