Inverse serialization of objects error: java.lang.ClassNotFoundException

A bug access to the data is always said class can not find, I carefully read the serialization implementation of the same class name is the same and then on the server to receive the object when the general report this do, online search a lot of the original is the package name is not the same, resulting in two classes are not the same program is really a strict thing ah paste code to see

Java.lang.ClassNotFoundException:xxxxxxxxxxxx
At Java.net.urlclassloader$1.run (urlclassloader.java:366)
At Java.net.urlclassloader$1.run (urlclassloader.java:355)
At java.security.AccessController.doPrivileged (Native Method)
At Java.net.URLClassLoader.findClass (urlclassloader.java:354)
At Java.lang.ClassLoader.loadClass (classloader.java:423)
At Sun.misc.launcher$appclassloader.loadclass (launcher.java:308)
At Java.lang.ClassLoader.loadClass (classloader.java:356)
At JAVA.LANG.CLASS.FORNAME0 (Native Method)
At Java.lang.Class.forName (class.java:264)
At Java.io.ObjectInputStream.resolveClass (objectinputstream.java:622)
At Java.io.ObjectInputStream.readNonProxyDesc (objectinputstream.java:1593)
At Java.io.ObjectInputStream.readClassDesc (objectinputstream.java:1514)
At Java.io.ObjectInputStream.readOrdinaryObject (objectinputstream.java:1750)
At Java.io.ObjectInputStream.readObject0 (objectinputstream.java:1347)
At Java.io.ObjectInputStream.readObject (objectinputstream.java:369)
At Xxxxxxxxxxxxxxxxx (testmetadata.java:103)

Hint class can not find, but actually the class file is really real existence, then the Internet search, sure enough to find the answer.

You can refer to the article: http://www.javapractices.com/topic/TopicAction.do?Id=45

The most basic two points:

1) need the same package name

2) the same serialization ID

Package testserverandclient;




Import java.io.IOException;
Import Java.io.ObjectOutput;
Import Java.io.ObjectOutputStream;
Import Java.net.Socket;
Import java.net.UnknownHostException;



public class Client {
/**
* Welcome to use this source code if you have any questions please add QQ Group: 151648295
*
*/
/**
* @param args
*/
public static void Main (string[] args) {
TODO auto-generated Method Stub
New Client ();
}

Public client () {
try {
Socket s=new socket ("127.0.0.1", 9999);
ObjectOutputStream oos=new ObjectOutputStream (S.getoutputstream ());
User U=new user ();
U.setname ("xiangqiao123");
U.setpass ("123");
Oos.writeobject (U);

} catch (Exception e) {
TODO auto-generated Catch block
E.printstacktrace ();
}


}
}

Package testserverandclient;


Import java.io.IOException;
Import Java.io.ObjectInputStream;
Import Java.net.ServerSocket;
Import Java.net.Socket;


public class Server {


public static void Main (string[] args) {

New Server ();
}
Public Server () {

try {
ServerSocket ss=new ServerSocket (9999);
Socket s=ss.accept ();

ObjectInputStream ois= New ObjectInputStream (S.getinputstream ());
User user= (user) ois.readobject ();

SYSTEM.OUT.PRINTLN (user);
} catch (Exception e) {
E.printstacktrace ();
}

}

}

Package testserverandclient;


Import java.io.Serializable;


public class User implements Serializable {




private String name;
Private String Pass;


Public String GetName () {
return name;
}
public void SetName (String name) {
THIS.name = name;
}
Public String Getpass () {
return pass;
}
public void SetPass (String pass) {
This.pass = pass;
}


}

Inverse serialization of objects error: java.lang.ClassNotFoundException