ping命令java調用

 

package com.xie.netcorse2;
import java.awt.Button;
import java.awt.Frame;
import java.awt.Label;
import java.awt.TextArea;
import java.awt.TextField;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.BufferedReader;
import java.io.InputStreamReader;

@SuppressWarnings("serial")
public class Ping2 extends Frame{
 
 Label label1;
 TextField tf0;
 TextArea tf1;
 Button btnSend,btnClear;
 
    public static void main(String[] args){
     new Ping2();
    }
    Ping2(){
     setTitle("ping的java調用");
     setLayout(null);
     setBounds(400, 400, 320, 240);
     label1=new Label("請輸入ping的地址:");
     label1.setBounds(0, 40, 100, 20);
     tf0=new TextField("127.0.0.1");
     tf0.setBounds(100, 40, 120, 20);
     tf1=new TextArea(5, 1);
     tf1.setBounds(0, 60, 320, 160);
     btnSend=new Button("ping");
     btnSend.setBounds(280, 220, 40, 20);
     btnClear=new Button("清空");
     btnClear.setBounds(250, 40, 40, 20);
     btnClear.addActionListener(new ClearText());
     btnSend.addActionListener(new myMonitor());
     add(label1);
     add(tf0);
     add(btnSend);
     add(btnClear);
     add(tf1);
     
     addWindowListener(new WindowAdapter() {

   @Override
   public void windowClosing(WindowEvent e) {
                  System.exit(0);
   }
  });
     setResizable(false);
     setVisible(true);
    }
   
    class ClearText implements ActionListener{

  @Override
  public void actionPerformed(ActionEvent e) {
   tf0.setText("");
  }
     
    }
    class myMonitor implements ActionListener{
        private String host=null;
  @Override
  public void actionPerformed(ActionEvent e) {
   host=tf0.getText().trim();
   tf1.setText(host);
   ping(host);
  }
     private void ping(String ip_host){
      
         String s = "";
         Process process;        
         try
         {
             process = Runtime.getRuntime().exec( "cmd /c " + "ping"+" "+ip_host);
             BufferedReader br = new BufferedReader( new InputStreamReader(
             process.getInputStream() ) );
             while ( ( s = br.readLine() ) != null ){
              tf1.setText(tf1.getText()+"/n"+s);//textArea中換行"/r/n"和"/n"
             }
            
             process.waitFor();
      
         } catch ( Exception ex )
         {
             ex.printStackTrace();
         }      
     }
    }
}