how to update class by socket

Question

// CLIENT SOURCE

while(!isStop){
    try{
        Object ob = mc.getOis().readObject();
        try{ 
            message = (String) ob;
        } catch (ClassCastException e){

            try {
                user = (User) ob;
                mc.user = (User) ob;
                message = "none";
            } catch ( ClassCastException ee ) {

                Room room = (Room) ob;
                mc.setRoom(room);   
                System.out.println("room come in");
                for (int i = 0; i<mc.room.userlist.size(); i++ )
                {
                    System.out.println("ThreadUserNum:" + room.userlist.get(i).getPlayer_Num());
                }


                mc.roomidimg();
                message = "none";

            }   
        }
    }
}

// SERVER SOURCE
public void roombroodcast ( Room msg, int room_id) throws IOException{
    if (room_id == 1){
        for( ServerThread ct : sv.getroom1list() ){
            for( int i = 0; i<msg.getUserlist().size(); i++){
                System.out.println(i + "broodcast:" + msg.getUserlist().get(i).getUser_Id());
            }
            ct.send( msg );
        }
    } else {
        for( ServerThread ct : sv.getroom2list() ){
            ct.send( msg );
        }
    }
}

We are making a game but we have some problems. The first user, who entered the game first, cannot get the other user's room class broadcasting. I mean, the other user or another user can get the room class broadcasting but the first one cannot get the updated room information. How can I update the room class broadcasting problem? We are using sockets to communicate.

Don't post pictures of text here. Post the text. – user207421 Jul 22 '18 at 10:18 — user207421, Jul 22 '18 at 10:18

score 0 · Accepted Answer · answered Jul 22 '18 at 07:24

0

You are always sending the same object, so serialization will not actually re-send it: it economizes, as described in the Object Serialization Specification. So updating it and sending it again will not affect the object received at the receiver.

You need to investigate ObjectOutputStream.reset() or ObjectOutputStream.writeUnshared().

answered Jul 22 '18 at 07:24

user207421

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oh..we solved it. our team is very happy because of you. you saved our project. – Park J Jul 22 '18 at 08:15
1

You may also like to accept the answer if it helped you! Please see how to accept an answer here -> https://meta.stackexchange.com/questions/5234/how-does-accepting-an-answer-work. – Am_I_Helpful Jul 22 '18 at 09:11
@ParkJ No. **I** solved it. You applied the solution I posted. If you found it useful you should upvote it and if it solved your problem you should at least consider accepting it. – user207421 Jul 22 '18 at 10:18

how to update class by socket

1 Answers1