一个关于Socket的很简单问题！但不知道什么地方错了

Question

应该是Server端的
out.write("You've connected to this server.Bye-bye now.\r\n");
过后没有out.flush()
所以幷没有发送！

Answer 1

2.
//client端的程序如下：
import java.awt.*;
import java.awt.event.*;
import java.net.*;
import java.io.*;
public class MyClient extends Frame implements ActionListener,ItemListener
{
          MenuBar m_Menu_Bar;
  Menu menuFile,menuEdit,menuHelp;
  MenuItem mi_File_Open,mi_File_Close,mi_File_Exit,mi_Edit_Copy,mi_Edit_Paste;
  MenuItem pi_New,pi_Del,pi_Pro,mi_Help_Sub;
  CheckboxMenuItem mi_Edit_Cut;
  PopupMenu popM;
           Socket ClientSocket;
         PrintStream os;
         DataInputStream is;
         String s;
         Label MyLabel=new Label("                      ☆欢迎使用本系统为您提供服务☆");
         TextArea textarea;
         Button MyButton=new Button("发 送 消 息");  public MyClient()
   {
                   setTitle("Client Window(客户端窗口)");
                   setLayout(new BorderLayout());
                   this.addWindowListener(new WinAdptClient(this));
                   MyButton.addActionListener(this);
                                     textarea=new TextArea(13,55);
//8888888888888888888888888888888888888888888888888888888888888888888888888888//
                   popM=new PopupMenu();
           pi_New=new MenuItem(" 新建 ");
           pi_New.addActionListener(this);
           popM.add(pi_New);
   pi_Del=new MenuItem(" 删除 ");
   pi_Del.addActionListener(this);
   popM.add(pi_Del);
                   pi_Pro=new MenuItem(" 属性 ");
                   pi_Pro.addActionListener(this);
   popM.add(pi_Pro);
 
    m_Menu_Bar=new MenuBar();
   menuFile=new Menu("文件");
   mi_File_Open=new MenuItem("打开");
   mi_File_Open.setShortcut(new MenuShortcut('f'));
   mi_File_Close=new MenuItem("关闭",new MenuShortcut('s'));
   mi_File_Exit=new MenuItem("退出",new MenuShortcut('x'));    mi_File_Open.setActionCommand("打开");
   mi_File_Close.setActionCommand("关闭");
   mi_File_Exit.setActionCommand("退出");    mi_File_Open.addActionListener(this);
   mi_File_Close.addActionListener(this);
   mi_File_Exit.addActionListener(this);      menuFile.add(mi_File_Open);
     menuFile.add(mi_File_Close);
     menuFile.add(mi_File_Exit);  m_Menu_Bar.add(menuFile);
 menuEdit=new Menu("编辑");
  mi_Edit_Copy=new MenuItem("复制");
  mi_Edit_Paste=new MenuItem("粘贴");
  mi_Edit_Cut=new CheckboxMenuItem("CUT");
  mi_Edit_Copy.setActionCommand("复制");
  mi_Edit_Paste.setActionCommand("粘贴");   mi_Edit_Copy.addActionListener(this);
  mi_Edit_Paste.addActionListener(this);
  mi_Edit_Cut.addItemListener(this);   menuEdit.add(mi_Edit_Copy);
  menuEdit.add(mi_Edit_Paste);
          menuEdit.addSeparator();
          menuEdit.add(mi_Edit_Cut);
  m_Menu_Bar.add(menuEdit);                          menuHelp=new Menu("帮助");
                          mi_Help_Sub=new MenuItem("主题");
                          menuHelp.add(mi_Help_Sub);
                          m_Menu_Bar.add(menuHelp);
  this.setMenuBar(m_Menu_Bar);
//*********************************************************************************//                    add("North",MyLabel);
                    add("South",MyButton);
                    add("Center",textarea);
                    setResizable(false);
                    pack();
                    show();
                    connect();
    }    public void connect()
      {
        try{
             ClientSocket=new Socket("localhost",6544);
             os=new PrintStream(
                  new BufferedOutputStream(ClientSocket.getOutputStream()));
             is=new DataInputStream(
                  new BufferedInputStream(ClientSocket.getInputStream()));
             s=is.readLine();
               textarea.appendText(s+"\n");
            }
             catch(Exception e){}
      }
//&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&//    public void itemStateChanged(ItemEvent e)//响应CHECKBOXMENUITEM被点击事件
{
 if(e.getSource()==mi_Edit_Cut)
 if(((CheckboxMenuItem)e.getSource()).getState())//查看是否被选中
       textarea.setText("\n\n\n\n\n\n\t\t\t"+"you have chosen "+
   ((CheckboxMenuItem)e.getSource()).getLabel());
 else
 textarea.setText("\n\n\n\n\n\n\t\t\t"+"you have not chosen "+                     ((CheckboxMenuItem)e.getSource()).getLabel());
        }
//&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&//
      public void actionPerformed(ActionEvent e)
        {
          //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%//
             if(e.getActionCommand()=="退出")
{
dispose();
System.exit(0);
}
 
  
          //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%//            if(e.getSource()==MyButton)
              {
                try{
                       os.print(textarea.getText());
                       os.flush();
                    }
                   catch(Exception e1){}
               }
          }
         public static void main(String args[])
         {
                new MyClient();
          }
 }   class WinAdptClient extends WindowAdapter
     {
         MyClient m_Parent;
         WinAdptClient(MyClient p)
          {
                m_Parent=p;
           }
         public void windowClosing(WindowEvent e)
          {
             try{//关闭窗口前先向SERVER端发送结束信息，并关闭各输入输出流与连接
                       m_Parent.os.println("Bye");
                       m_Parent.os.flush();
                       m_Parent.is.close();
                       m_Parent.os.close();
                       m_Parent.ClientSocket.close();
                       m_Parent.dispose();
                       System.exit(0);
                }catch(IOException e2){}
            }
       }     

Answer 2

3.ServiceThread.class
import java.awt.*;
import java.io.*;
import java.net.InetAddress;
import java.net.Socket;class ServiceThread extends Frame
    implements Runnable
{    ServerService FatherListener;
    Socket ConnectedClient;
    Thread ConnectThread;
    Panel ListenerPanel;
    TextArea ServerMeg;    public ServiceThread(ServerService serverservice, Socket socket)
    {
        FatherListener = serverservice;
        ConnectedClient = socket;
        ConnectThread = new Thread(this);
        setTitle("Server(服务器端)");
        setLayout(new BorderLayout());
        ServerMeg = new TextArea(13, 50);
        add("Center", ServerMeg);
        setResizable(false);
        pack();
        show();
        InetAddress inetaddress = ConnectedClient.getInetAddress();
        ServerMeg.appendText("Server connect to: \n\n" + inetaddress.toString() + ".\n");
    }    public void run()
    {
        try
        {
            DataInputStream datainputstream = new DataInputStream(new BufferedInputStream(ConnectedClient.getInputStream()));
            PrintStream printstream = new PrintStream(new BufferedOutputStream(ConnectedClient.getOutputStream()));
            printstream.println("  Hello! I am Server,Welcome connect to me(Server)!\r");
            printstream.flush();
            for(String s = datainputstream.readLine(); !s.equals("Bye"); s = datainputstream.readLine())
                ServerMeg.appendText("client端输入的信息为：    \n" + s);            ConnectedClient.close();
        }
        catch(Exception exception) { }
        FatherListener.addMeg("Clientclosed.\n");
        dispose();
    }
}

Answer 3

谢谢star821116(回家真好) ，就是这个问题
ps：fuzhan820(fzd)，要得分请不要不负责任得乱引！我是要解决我得问题