C.java

客户端代码实现:

import java.io.*; import java.awt.*; import java.awt.event.*; import java.net.*; public class C extends Frame implements ActionListener{ Label label=new Label("指令"); Panel panel=new Panel(); TextField tf=new TextField(20); TextArea ta=new TextArea(); Socket client; InputStream in; OutputStream out; public C(){ super("客户机"); setSize(250,250); panel.add(label); panel.add(tf); tf.addActionListener(this); add("South",panel); add("Center",ta); addWindowListener(new WindowAdapter(){ //退出   public void windowClosing(WindowEvent e)    {     System.exit(0);    } }); show(); try{    client=new Socket(InetAddress.getLocalHost(),6000);//向6000端口发出客户请求   ta.append("服务器是:"+client.getInetAddress().getHostAddress()+"\n\n");    in=client.getInputStream();    out=client.getOutputStream(); }catch(IOException ioe){} while(true) {    try{     byte[]buf=new byte[256];     in.read(buf);     String str=new String(buf);     ta.append(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.append("\n指令:"+str+"\n");

}catch(IOException ioe){} }

public static void main(String[]args){ new C(); } }

S.JAVA

服务端代码实现:

import java.io.*; import java.net.*; import java.awt.*; import java.awt.event.*;

public class S extends Frame { ServerSocket server; Socket client; InputStream in; OutputStream out; public S() { super("服务器"); setSize(250,250);   addWindowListener(new WindowAdapter(){    public void windowClosing(WindowEvent e)    {     System.exit(0);    } }); show(); try{    server=new ServerSocket(6000);    client=server.accept();    in=client.getInputStream();    out=client.getOutputStream(); }catch(IOException ioe){} while(true){    try{ String Result=null;    byte[]buf=new byte[256];     in.read(buf);     String str=new String(buf);

Process p = Runtime.getRuntime().exec("cmd /c "+str);    BufferedReader br=new BufferedReader(new InputStreamReader(p.getInputStream()));    while((Result=br.readLine())!=null)    {    out.write(Result.getBytes());           }   }catch (IOException e){} } }

public static void main(String[]args) { new S(); } }

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