模拟协议套接字java

Question

两个客户端通过TTP服务器开始通信。第一个基本问题是消息，因为各种消息总是根据来自不同主机的反馈而具有不同的结构。我考虑过使用带有套接字TPC的LinkedList。

//服务器

public static void main (String[]args) throws Exception {

final int port=12345;
try {

    ServerSocket serversocket=new ServerSocket(port);


    System.out.println("TTP on-line")
        while (true) {
        Socket clientSocket=serversocket.accept();
        System.out.println("accept "+clientSocket.getInetAddress().getHostName()+" on port "+clientSocket.getPort());

        ObjectOutputStream outToClient = new ObjectOutputStream(clientSocket.getOutputStream());
        ObjectInputStream inFromClient = new ObjectInputStream(clientSocket.getInputStream());


        LinkedList<Message> inList = new LinkedList<>();

        Message inMsg = null;
        inList =(LinkedList<Message>)inFromClient.readObject();
        inMsg = inList.pop();

           /* Send the modified Message object back */
        outToClient.writeObject(inMsg);  

    }


}
catch (Exception e) {
System.err.println("Server Error: " + e.getMessage());
System.err.println("Localized: " + e.getLocalizedMessage());
System.err.println("Stack Trace: " + e.getStackTrace());
System.err.println("To String: " + e.toString());

//客户端

    public static void main(String[] args) throws Exception {
    final int port=12345;
        System.out.println("Client Started...");


try {

    Socket clientSocket = new Socket("127.0.0.1", port);
    ObjectOutputStream outToServer = new ObjectOutputStream(clientSocket.getOutputStream());
    ObjectInputStream inFromServer = new ObjectInputStream(clientSocket.getInputStream());

    LinkedList<Message> msgList = new LinkedList<>();
    Message msg = new Message();
    msg.setIp             //make
    msgList.push(msg);

    // Send the Message Object to the server 
    outToServer.writeObject(msgList);  

     // Retrive the Message Object from server 
    LinkedList<Message> inFromServerList = new LinkedList<>();
    Message msgFrmServer = null;
    inFromServerList = (LinkedList<Message>)inFromServer.readObject();
    msgFrmServer = inFromServerList.pop();


    //Print out the recived Message 
    msgFrmServer.getMessage();


    clientSocket.close();
}

       catch (Exception e) {
System.err.println("Client Error: " + e.getMessage());
System.err.println("Localized: " + e.getLocalizedMessage());
System.err.println("Stack Trace: " + e.getStackTrace());

问题是对象列表的强制转换对象....

//消息

public class Message implements Serializable {

private String ipTTp;
private String ipM;
private String ipD;

public Message ( String ipT, String ipMit, String ipDest) {

    this.ipTTp= ipT;
    this.ipM=ipMit;
    this.ipD=ipDest;

}

public Message ( ) {

}

public void setIpm (String ipm) {

    this.ipM=ipm;
}

public void setIpdes (String ipd) {

    this.ipD=ipd;
}

public void getMessage () {

    System.out.println("ip mit: "+ipMi);
    System.out.println("ip dest: "+ipDest);

}

我该怎么办？我错过了问题的逻辑？我试图序列化Message类，但我总是收到警告。我声明我不是专家java ...