计算机网络作业(五)

做一个pingGUI程序，本来用MFC写的，写到一半真不想用那个垃圾框架了，干脆用Java写算了，第一次用Java写界面，有点丑。

源代码

​x
package pingGUI;
​
​
import org.icmp4j.IcmpPingUtil;
​
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.Frame;
import java.awt.Label;
import java.awt.Window;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
​
import javax.swing.*;
​
import org.icmp4j.IcmpPingRequest;
import org.icmp4j.IcmpPingResponse;
​
// Sample class, copyright 2009 and beyond, icmp4j
public class pingGUI {
​
// the java entry point
public static void main (final String[ ] args)
throws Exception {
    Frame f=new Frame("ping GUI");
    f.setLayout(new FlowLayout(FlowLayout.LEFT,45,30));
    f.setSize(450, 500);
    f.setLocation(300, 200);
    Label a=new Label("IP/域名");
    f.add(a);
    JTextField inputField;
    inputField=new JTextField(20);
    f.add(inputField);
    MyWindowListener mw=new MyWindowListener();
    f.addWindowListener(mw);
    Label b=new Label("次数");
    f.add(b);
    JButton start=new JButton("开始");
    
    JTextField time;
    time=new JTextField(20);
    f.add(time);
     JTextArea logContent=new JTextArea(12,30);
     JScrollPane showPanel=new JScrollPane(logContent);
     logContent.setEditable(false);
        JPanel inputPanel=new JPanel();
     f.add(showPanel,BorderLayout.CENTER);
     f.add(inputPanel,BorderLayout.SOUTH);
        f.add(start,BorderLayout.CENTER);
        f.setVisible(true);
        start.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                String content=inputField.getText();
                String ci=time.getText();
                int ttime=Integer.parseInt(ci);
                final IcmpPingRequest request = IcmpPingUtil.createIcmpPingRequest ();
                request.setHost (content);
​
                // repeat a few times
                for (int count = 1; count <= ttime; count ++) {
​
                // delegate
                final IcmpPingResponse response = IcmpPingUtil.executePingRequest (request);
​
                // log
                final String formattedResponse = IcmpPingUtil.formatResponse (response);
​
                if(content!=null&&!content.trim().equals("")) {
                    logContent.append (formattedResponse+"\n");
                }
                else
                    {logContent.append("域名或者IP不能为空");break;}
            }
            }
        });
        // rest
        Thread.sleep (1000);
    }
​
}
​
class MyWindowListener extends WindowAdapter{
    public void windowClosing(WindowEvent e) {
        Window window=e.getWindow();
        window.setVisible(false);
        window.dispose();
    }
​
    
}

测试gif

总结

　　　用Java写出一个比较精美，并且布局相当精致的程序还是比较困难的，你需要知道怎么使用不同的布局，才能将一个程序写的相当不错。