How to send any java Object through socket?

[Parshuram Walunjkar]

Hi Everybody,
I want know how to send any java Object through socket i.e. send Object through socket from client side and read it to the server side and vice versa.
Please suggest solution me.
Regards From Parshuram

[Les Dsouza]

To send an object thru a stream you need to serialize it ie.. the object should implement the serializable interface; this is a 'marker' interface hence you dont need to define any methods.
All objects that support the java.io.Serializable interface can be written to streams.
TO send the object you use an ObjectOutputStream - call its writeObject method, Likewise to read you use the ObjectInputStream's readObject method.
Hope the code below helps -

 
import java.net.*;
import java.io.*;
class testobject implements Serializable {
int value ;
String id;
public  testobject(int v, String s ){
this.value=v;
this.id=s;
}
}
public class SimpleServer  {
public static void main(String args[]) {
int port = 2002;
try {
ServerSocket ss = new ServerSocket(port);
Socket s = ss.accept();
InputStream is = s.getInputStream();
ObjectInputStream ois = new ObjectInputStream(is);
testobject to = (testobject)ois.readObject();
if (to!=null){System.out.println(to.id);}
System.out.println((String)ois.readObject());
is.close();
s.close();
ss.close();
}catch(Exception e){System.out.println(e);}
}
}
import java.net.*;
import java.io.*;
public class SimpleClient {
public static void main(String args[]){
try{
Socket s = new Socket("localhost",2002);
OutputStream os = s.getOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(os);
testobject to = new testobject(1,"object from client");
oos.writeObject(to);
oos.writeObject(new String("another object from the client"));
oos.close();
os.close();
s.close();
}catch(Exception e){System.out.println(e);}
}
}

[ February 04, 2002: Message edited by: Les Dsouza ]
[ February 04, 2002: Message edited by: Les Dsouza ]

[Parshuram Walunjkar]

Hi all,
I am sending Object from server to client it receive to the client side but I am doing that hole thing in thread so it gives exception such as streamCorrecuptedException
Why such exception occurs?
Please help me
From
Parshuram Walunjkar