myclient.java

从客户端输入两个数

import java.awt.*;
import java.awt.event.*;
import java.net.*;
import java.io.*;
public class MyClient extends Frame implements ActionListener
{
	Socket ClientSocket;
	PrintStream os;
	DataInputStream is;
	String s;
	Label Mylabel=new Label("欢迎使用本机提供的信息");
	Label enter1=new Label("x=");
	Label enter2=new Label("y=");
	TextField enterx=new TextField(0);
	TextField entery=new TextField(0);
	TextArea textArea;
	Button Line=new Button("连接");
	Button Open=new Button("断开");
	Button MyButton=new Button("发送");
	public MyClient()
	{
		setTitle("Client Window");
		GridBagLayout gbl=new GridBagLayout();
		GridBagConstraints gbc=new GridBagConstraints();
		setLayout(gbl);
		this.addWindowListener(new WinAdptClient(this));

		textArea=new TextArea(20,50);

		gbc.gridx=1;gbc.gridy=1;
		gbc.gridwidth=4;
		gbc.gridheight=1;
		gbc.fill=GridBagConstraints.HORIZONTAL;
		gbc.weightx=1;gbc.weighty=0;
		gbc.insets=new Insets(2,5,1,5);
		gbl.setConstraints(Mylabel,gbc);
		add(Mylabel);

        gbc.gridx=1;gbc.gridy=2;
		gbc.gridwidth=1;
		gbc.gridheight=1;
		gbc.anchor=GridBagConstraints.WEST;
		gbc.weightx=1;gbc.weighty=0;
		gbc.insets=new Insets(2,5,1,5);
		gbl.setConstraints(enter1,gbc);
		add(enter1);

		gbc.gridx=3;gbc.gridy=2;
		gbc.gridwidth=1;
		gbc.gridheight=1;
		gbc.anchor=GridBagConstraints.WEST;
		gbc.weightx=1;gbc.weighty=0;
		gbc.insets=new Insets(2,5,1,5);
		gbl.setConstraints(enter2,gbc);
		add(enter2);

        gbc.gridx=2;gbc.gridy=2;
		gbc.gridwidth=1;
		gbc.gridheight=1;
		gbc.anchor=GridBagConstraints.SOUTHEAST;
		gbc.weightx=1;gbc.weighty=0;
		gbc.insets=new Insets(2,5,1,5);
		gbl.setConstraints(enterx,gbc);
		add(enterx);

		gbc.gridx=4;gbc.gridy=2;
		gbc.gridwidth=1;
		gbc.gridheight=1;
		gbc.anchor=GridBagConstraints.SOUTHEAST;
		gbc.weightx=1;gbc.weighty=0;
		gbc.insets=new Insets(2,5,1,5);
		gbl.setConstraints(entery,gbc);
		add(entery);

		gbc.gridx=1;gbc.gridy=3;
		gbc.gridheight=1;
		gbc.fill=GridBagConstraints.HORIZONTAL;
		gbc.weightx=1;gbc.weighty=0;
		gbc.insets=new Insets(2,5,1,5);
		gbl.setConstraints(MyButton,gbc);
		MyButton.addActionListener(this);
		add(MyButton);

		gbc.gridx=3;gbc.gridy=3;
		gbc.gridheight=1;
		gbc.fill=GridBagConstraints.HORIZONTAL;
		gbc.weightx=1;gbc.weighty=0;
		gbc.insets=new Insets(2,5,1,5);
		gbl.setConstraints(Line,gbc);
		Line.addActionListener(this);
		add(Line);

		gbc.gridx=4;gbc.gridy=3;
		gbc.gridheight=1;
		gbc.fill=GridBagConstraints.HORIZONTAL;
		gbc.weightx=1;gbc.weighty=0;
		gbc.insets=new Insets(2,5,1,5);
		gbl.setConstraints(Open,gbc);
	    Open.addActionListener(this);
		add(Open);


		gbc.gridx=1;gbc.gridy=4;
		gbc.gridwidth=4;gbc.gridheight=1;
		gbc.fill=GridBagConstraints.HORIZONTAL;
		gbc.weightx=1;gbc.weighty=0;
		gbc.insets=new Insets(2,5,1,5);
		gbl.setConstraints(textArea,gbc);
		add(textArea);
		setResizable(false);
		pack();
		show();
		//connect();
    }
    public void connect()
    {
		try{
			 ClientSocket=new Socket(InetAddress.getLocalHost(),8000);
			 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 actionPerformed(ActionEvent e)
	  {
		  if(e.getSource()==MyButton)
		  {
			  try{
				  os.println(enterx.getText());
				  os.println(entery.getText());
				  os.flush();
			  }
			  catch(Exception a){}
			  try
			  {
				  is=new DataInputStream(
				  	new BufferedInputStream(ClientSocket.getInputStream()));
				   s=is.readLine();
		      textArea.appendText(s+"\n");
			  }
			  catch(Exception a){}
		  }
		  else if(e.getActionCommand()=="连接")
		  {
			  connect();

	       }
	      else if(e.getActionCommand()=="断开")
	       {
		     try{
		         is.close();
			     os.close();
                 ClientSocket.close();
			    }
			 catch(Exception a){}

		   }

	  }
	  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{
              m_Parent.is.close();
              m_Parent.os.close();
              m_Parent.ClientSocket.close();
              m_Parent.dispose();
              System.exit(0);
		  }catch(Exception a){}
	  }
  }