JAVA编写服务器和客户端

1、1、服务器程序代码如下：importjava.io.*;.*;importjava.awt.*;importjava.awt.event.*;publicclassaaaextendsFrameimplementsActionListenerLabellabel=newLabel(交谈内容);Panelpanel=newPanel();TextFieldtf=newTextField(10);TextAreata=newTextArea();ServerSocketserver;Socketclient;InputStreamin;OutputStreamout;publicaaa()supe

2、r(服务器);setSize(80,80);panel.add(label);panel.add(tf);tf.addActionListener(this);add(West,panel);add(Center,ta);addWindowListener(newWindowAdapter()publicvoidwindowClosing(WindowEvente)System.exit(0););show();tryserver=newServerSocket(4000);client=server.accept();ta.append(客户机端：+client.getInetAddress

3、().getHostName()+nn);in=client.getInputStream();out=client.getOutputStream();catch(IOExceptionioe)while(true)trybyte口buf=newbyte256;in.read(buf);Stringstr=newString(buf);ta.append(服务器端：+str+nn);catch(IOExceptione)publicvoidactionPerformed(ActionEvente)tryStringstr=tf.getText();byte口buf=str.getBytes(

4、);tf.setText(null);out.write(buf);ta.append(:+str+n);catch(IOExceptionioe)publicstaticvoidmain(String口args)newaaa();运行结果：2、客户端程序代码如下：importjava.io.*;.*;importjava.awt.*;importjava.awt.event.*;publicclassclientextendsFrameimplementsActionListenerLabellabel=newLabel(交谈内容”)；Panelpanel=newPanel();TextFi

5、eldtf=newTextField(10);TextAreata=newTextArea();Socketclient;InputStreamin;OutputStreamout;publicclient()super(客户端);setSize(250,250);panel.add(label);panel.add(tf);tf.addActionListener(this);add(West,panel);add(Center,ta);addWindowListener(newWindowAdapter()publicvoidwindowClosing(WindowEvente)Syste

6、m.exit(0););show();tryclient=newSocket(InetAddress.getLocalHost(),4000);ta.append(您服务器是：+client.getInetAddress().getHostName()+nn);in=client.getInputStream();out=client.getOutputStream();catch(IOExceptionioe)while(true)trybyte口buf=newbyte256;in.read(buf);Stringstr=newString(buf);ta.append(服务器端：+str+n);catch(IOExceptione)publicvoidactionPerformed(ActionEvente)tryStringstr=tf.getText();byte口buf=str.getBytes();tf.setText(null);out.write(buf);ta.append(客户端:+str+n);catc