| fresher |
Jan 15th, 2007 9:30 PM |
GUI issues
Hi all, I have just implemented a GUI for my partially working code but Im having problems getting information to show on the GUI. any help will be appreciated please.
:
//UtilityPanel.java
import javax.swing.*;
import java.awt.*;
import java.net.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.*;
import java.util.*;
public class UtilityPanel extends JPanel
{
public JPanel buttonJPanel, ipPanel, textPanel, middlePanel, mainPanel; //Panel to hold buttons and Server IPAddress
public JButton connect, disconnect, ping, hostInfo;
public JLabel label2, label1; //label field for IP address
public JLabel label3, label4, label5, label6; //labels for IP range
public JTextField textOctet1, textOctet2, textOctet3, textOctet4, textOctet5; //text fields for IP address range
public JTextField textPing; //Text field to enter ping address
public String ipAddress, pingString, output; //Holds IP Address for label
public String octet1, octet2, octet3, octet4, octet5, combined;
public JTextArea display; //Text area for output commands
public int i,a; //Variables for IP Range
public UtilityPanel()
{
//Create the main panel to contain the four sub panels
mainPanel = new JPanel();
mainPanel.setLayout(new BoxLayout(mainPanel, BoxLayout.PAGE_AXIS));
mainPanel.setBorder(BorderFactory.createEmptyBorder(5,5,5,5));
add(mainPanel);
//Get local IPAddress
try
{
InetAddress local = InetAddress.getLocalHost();
ipAddress = local.getHostAddress();
}
catch (UnknownHostException e)
{
System.err.println( "Can't detect localhost " + e);
}
//add ipPanel
ipPanel = new JPanel();
ipPanel.setSize(600,30);
label1 = new JLabel( "Server IP Address:" );
ipPanel.add( label1 ); //add label1 to panel
label2 = new JLabel (ipAddress);
ipPanel.add (label2); //add label21 to panel
//add buttonJPanel
buttonJPanel = new JPanel();
buttonJPanel.setSize(600,70);
buttonJPanel.setBorder(BorderFactory.createCompoundBorder(BorderFactory.createTitledBorder("Control"),
BorderFactory.createEmptyBorder(5,5,5,5)));
connect = new JButton( "Connect" );
buttonJPanel.add(connect); //add button to JFrame
disconnect = new JButton( "Disconnect" );
buttonJPanel.add(disconnect); //add button to buttonJPanel
hostInfo = new JButton(" Host Info" );
buttonJPanel.add(hostInfo); //add button to buttonJPanel
ping = new JButton("Ping" );
buttonJPanel.add(ping); //add button to buttonJPanel
textPing = new JTextField(10);
buttonJPanel.add(textPing);
middlePanel = new JPanel();
middlePanel.setSize(600,300);
middlePanel.setBorder(BorderFactory.createCompoundBorder(BorderFactory.createTitledBorder("IP Range"),
BorderFactory.createEmptyBorder(5,5,5,5)));
textOctet1 = new JTextField("192",3);
middlePanel.add(textOctet1);
label3 = new JLabel(".");
middlePanel.add(label3);
textOctet2 = new JTextField("168",3);
middlePanel.add(textOctet2);
label4 = new JLabel(".");
middlePanel.add(label4);
textOctet3 = new JTextField("0",3);
middlePanel.add(textOctet3);
label5 = new JLabel(".");
middlePanel.add(label5);
textOctet4 = new JTextField("100",3);
middlePanel.add(textOctet4);
label6 = new JLabel("-");
middlePanel.add(label6);
textOctet5 = new JTextField("120",3);
middlePanel.add(textOctet5);
//add textPanel
textPanel = new JPanel();
textPanel.setSize(600,200);
textPanel.setBorder(BorderFactory.createCompoundBorder(BorderFactory.createTitledBorder("Current Connections"),
BorderFactory.createEmptyBorder(5,5,5,5)));
display = new JTextArea(18, 50);
display.setEnabled(true);
display.setLineWrap(true);
display.setWrapStyleWord(true);
JScrollPane scrollPane = new JScrollPane(display,
JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
textPanel.add(scrollPane); //add display to textPanel
mainPanel.add(ipPanel);
mainPanel.add(buttonJPanel, BorderLayout.NORTH);
mainPanel.add(middlePanel,BorderLayout.CENTER);
mainPanel.add(textPanel, BorderLayout.SOUTH);
PingHandler pingHandler = new PingHandler();
ping.addActionListener(pingHandler);
ConnectHandler connectHandler = new ConnectHandler();
connect.addActionListener(connectHandler);
DisconnectHandler disconnectHandler = new DisconnectHandler();
disconnect.addActionListener(disconnectHandler);
} //end public UtilityPanel
public class PingHandler implements ActionListener
{
public void actionPerformed(ActionEvent event)
{
String ip = (textPing.getText());
String pingResult = "";
String pingCmd = "ping " + ip;
try
{
Runtime r = Runtime.getRuntime();
Process p = r.exec(pingCmd);
BufferedReader in = new BufferedReader(new
InputStreamReader(p.getInputStream()));
String inputLine;
while ((inputLine = in.readLine()) != null)
{
display.append(inputLine + "\n");
pingResult += inputLine;
}
in.close();
}
catch (IOException e)
{
System.out.println(e);
}
}
}
public class ConnectHandler implements ActionListener
{
public void actionPerformed(ActionEvent event)
{
octet1 = (textOctet1.getText());
octet2 = (textOctet2.getText());
octet3 = (textOctet3.getText());
octet4 = (textOctet4.getText());
octet5 = (textOctet5.getText());
int i = Integer.valueOf( octet4 ).intValue();
int a = Integer.valueOf( octet5 ).intValue();
while(i<=a)
{
try
{
InetAddress address = InetAddress.getByName(octet1 + "." + octet2 + "." + octet3+ "." + i);
display.append("Address : " + address.getHostAddress() + "\tName: " + address.getHostName() + "\tReachable : " + address.isReachable(500) + "\n");
i++;
}
catch (UnknownHostException e)
{
display.append("Cannot connect to : " + octet1 + "." + octet2 +"."+ octet3+"." + i);
}
catch (IOException e)
{
display.append("Unable to reach address");
}
}
}
}
public class DisconnectHandler implements ActionListener
{
public void actionPerformed(ActionEvent event)
{
//this.setDefaultCloseOperation(EXIT_ON_CLOSE);
}
}
} //end class UtilityPanel
:
//UtilityFrame.java
// UtilityFrame.java
import javax.swing.*;
import java.awt.*;
class UtilityFrame extends JFrame
{
//import Utility panel
UtilityPanel ut;
UtilityFrame()
{
super("Network Management Utility Tool");
Container cp = getContentPane();
cp.setLayout(new BorderLayout());
ut = new UtilityPanel();
cp.add(ut, BorderLayout.NORTH);
this.setDefaultCloseOperation(EXIT_ON_CLOSE);
this.setSize(620, 550);
setVisible(true);
setResizable(true);
}
public static void main (String args[])
{
UtilityFrame uf = new UtilityFrame();
}
}
//compile both programs and run UtilityFrame.java to see what i mean
Problem
When UtilityFrame.java is run and the IP range is entered in the appropriate field (current connections label) on the GUI, a list of connections does not show up as I want it to.
Question:
How do cant i get the current connections field to display the hostname, successful connection (green color) or unsuccesful connection (red).?Also is there a way to loop through again say after 5secs (just a sort of refresh). pls i need help. thanks in advance. |
