package Ichat;
import java.io.*;
import java.net.*;
import java.util.*;
public class Client {
    private String name;
    private Socket s;
    private ReadThread rt;
    private DataOutputStream dos;
    public Client(){
        try {
            s= new Socket("192.168.1.105",8889);
        }  catch (Exception e) {
            e.printStackTrace();
        }
    }
    public Client(Socket s){
        this.s=s;
    }
    public void chat(){
        System.out.println("在开始聊天之前请输入您的姓名：");
        Scanner sc = new Scanner(System.in);
        this.name = sc.next();
        try{
            dos= new DataOutputStream(s.getOutputStream());
            rt = new ReadThread(s);
            rt.start();
            System.out.println("连接成功，现在您可以开始聊天了：");
            while(true){
                String msg = sc.next();
                if("byebye".equals(msg)){
                    s.close();
                    dos.close();
                    System.out.println("连接已经断开...");
                    System.exit(0);
                }
                dos.writeUTF(name+"说： "+msg);
            }
        }catch (Exception e){
            e.printStackTrace();
        }
    }
    public static void main(String[] args) {
        new Client().chat();
    }
}

------解决方案--------------------
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