JAVA编写服务器和客户端

1、1服务器程序代码如下:importjava.io.*;importjava .n et.*;importjava.awt.*;importjava.awt.eve nt.*publicclassaaa exte ndsFrame impleme ntsActi on Liste nerLabellabel= new Label(交谈内容”)；Panel panel = new Pan el();TextField tf = new TextField(10);TextArea ta = new TextArea();ServerSocket server ;Socketclie nt;Inpu

2、tStreamin ;OutputStream out ;public aaa() super (“ 服务器“);setSize(80, 80);panel .add( label );panel .add( tf );tf .addActionListener(this );add( West , pan el );add( Center , ta );addWi ndowListe ner(new Win dowAdapter() public void win dowClos in g(Wi ndowEve nt e) System. exit (0););show();try serv

3、er= new ServerSocket(4000);clie nt= server .accept();ta .append(客户机端：+ client.getInetAddress().getHostName() +nn);in = clie nt .getI nputStream();out = clie nt.getOutputStream(); catch (IOExcepti on ioe) while ( true ) try byte buf = new byte 256;in .read(buf);String str =new Strin g(buf);ta .append

4、(服务器端：+ str +nn); catch (IOExcepti on e) public voidacti on Performed(Acti on Eve nt e) try String str =tf .getText();byte buf = str.getBytes();tf .setText( null );out .write(buf);ta .append( : + str +n); catch(lOExcepti on ioe) public static voidmain( Stri ng args) new aaa();运行结果：2、客户端程序代码如下：import

5、 java.io.*;import java .n et.*;import java.awt.*;import java.awt.eve nt.*;public class clie nt exte nds Frame impleme nts Action Liste ner Label label = new Label( 交谈内容);Panel panel = new Pan el();TextField tf = new TextField(10);TextArea ta = new TextArea();Socket clie nt;In putStream in;OutputStre

6、am out;public clie nt() super( 客户端 );setSize(250, 250);panel.add(label);panel.add(tf);tf.addActionListener(this);add(West, panel);add(Center, ta);addWindowListener(new WindowAdapter() public void windowClosing(WindowEvent e) System.exit(0););show();try client = new Socket(InetAddress.getLocalHost(),

7、 4000);ta.append( 您服务器是： + client.getInetAddress().getHostName() + nn); in = client.getInputStream();out = client.getOutputStream(); catch (IOException ioe) while (true) try byte buf = new byte256;in.read(buf);String str = new String(buf);ta.append( 服务器端： + str + n); catch (IOException e) public void actionPerformed(ActionEvent e) try String str = tf.getText();byte buf = str.getBytes();tf.setText(null);out.write(buf);ta.