/*FileWriter&PrintWriter input&output the character stream
FileOutputStream&FileInputStream input&output the byte stream*/import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import java.util.GregorianCalendar;
import java.text.DateFormat;
import java.util.Date;public class login1 extends JFrame
{private JLabel la1,la2;
private JTextField tF;
private JPasswordField pwdF;
private JButton bu1,bu2;
Container cont;
int i=1;
String getInput1;
String getInput2;
FileWriter out=null;
PrintWriter dataout=null;
public login1()
{super("登入计费系统");
cont=getContentPane();
cont.setLayout (new GridLayout(3,2));
la1=new JLabel("用户名");
la2=new JLabel("密码");
tF=new JTextField(20);
pwdF=new JPasswordField(20);
pwdF.setEchoChar ('*'); TFH handler= new TFH();//语句注册listener,这里全是handler
bu1=new JButton("登入");
bu1.addActionListener (handler);
bu2=new JButton("重输");
bu2.addActionListener (new ActionListener()
{public void actionPerformed(ActionEvent ae)
{tF.setText ("");
pwdF.setText ("");
}
});
cont.add(la1);
cont.add(la2);
cont.add(tF);
cont.add(pwdF);
cont.add(bu1);
cont.add(bu2);
setSize(300,200);
Dimension dim = getToolkit().getScreenSize();
setLocation(dim.width/2-getWidth()/2,dim.height/2-getHeight()/2);
setVisible(true); }
public static void main(String[] args)throws IOException
{login1 log=new login1();
log.addWindowListener(
new WindowAdapter() {
public void windowClosing( WindowEvent e )
{
System.exit( 0 );
}
}
);
}
private class TFH implements ActionListener
{
public void actionPerformed(ActionEvent ae)
{String st1 =new String(tF.getText ());
String st2 =new String(pwdF.getPassword ());
String st3 ="jmfish";
String st4 ="163";
if(st3.equals(st1)&&st4.equals(st2))
{JOptionPane.showMessageDialog(null,"正确");
write(true);
}
else
{write(false);
tF.setText ("");
pwdF.setText ("");
JOptionPane.showMessageDialog(null,"用户名或密码错误"+i+"次");
i++;
if(i==4)
{JOptionPane.showMessageDialog(null, "3 Times", "Warning", JOptionPane.ERROR_MESSAGE);
}
//close the whole window
};
}
}
public void write(boolean boo)
{boolean bo=boo;
Date date=new Date();
GregorianCalendar current = new GregorianCalendar();
DateFormat dateFormat =DateFormat.getDateTimeInstance (DateFormat.FULL,DateFormat.FULL);
try
{//out=new File("d://jm/outFile.txt");
//dataout=new FileOutputStream(out,true);
out= new FileWriter("d://jm/OutFile.txt",true);
dataout= new PrintWriter(out);
dataout.println("System Date: " +dateFormat.format(current.getTime()));
getInput1=tF.getText ();
getInput2=new String(pwdF.getPassword ());
if(dataout!=null)
{if(bo)
{dataout.println ("登陆成功!");
dataout.close ();
out.close ();
}
else
{dataout.println ("登陆失败!");
//dataout.write (getInput1);
dataout.println ("用户名:"+getInput1);
dataout.println ("密码:"+getInput2);
System.out.println (bo);
out.close ();
}
}
} catch(IOException e)
{System.out.println (e);}
}
}
FileOutputStream&FileInputStream input&output the byte stream*/import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import java.util.GregorianCalendar;
import java.text.DateFormat;
import java.util.Date;public class login1 extends JFrame
{private JLabel la1,la2;
private JTextField tF;
private JPasswordField pwdF;
private JButton bu1,bu2;
Container cont;
int i=1;
String getInput1;
String getInput2;
FileWriter out=null;
PrintWriter dataout=null;
public login1()
{super("登入计费系统");
cont=getContentPane();
cont.setLayout (new GridLayout(3,2));
la1=new JLabel("用户名");
la2=new JLabel("密码");
tF=new JTextField(20);
pwdF=new JPasswordField(20);
pwdF.setEchoChar ('*'); TFH handler= new TFH();//语句注册listener,这里全是handler
bu1=new JButton("登入");
bu1.addActionListener (handler);
bu2=new JButton("重输");
bu2.addActionListener (new ActionListener()
{public void actionPerformed(ActionEvent ae)
{tF.setText ("");
pwdF.setText ("");
}
});
cont.add(la1);
cont.add(la2);
cont.add(tF);
cont.add(pwdF);
cont.add(bu1);
cont.add(bu2);
setSize(300,200);
Dimension dim = getToolkit().getScreenSize();
setLocation(dim.width/2-getWidth()/2,dim.height/2-getHeight()/2);
setVisible(true); }
public static void main(String[] args)throws IOException
{login1 log=new login1();
log.addWindowListener(
new WindowAdapter() {
public void windowClosing( WindowEvent e )
{
System.exit( 0 );
}
}
);
}
private class TFH implements ActionListener
{
public void actionPerformed(ActionEvent ae)
{String st1 =new String(tF.getText ());
String st2 =new String(pwdF.getPassword ());
String st3 ="jmfish";
String st4 ="163";
if(st3.equals(st1)&&st4.equals(st2))
{JOptionPane.showMessageDialog(null,"正确");
write(true);
}
else
{write(false);
tF.setText ("");
pwdF.setText ("");
JOptionPane.showMessageDialog(null,"用户名或密码错误"+i+"次");
i++;
if(i==4)
{JOptionPane.showMessageDialog(null, "3 Times", "Warning", JOptionPane.ERROR_MESSAGE);
}
//close the whole window
};
}
}
public void write(boolean boo)
{boolean bo=boo;
Date date=new Date();
GregorianCalendar current = new GregorianCalendar();
DateFormat dateFormat =DateFormat.getDateTimeInstance (DateFormat.FULL,DateFormat.FULL);
try
{//out=new File("d://jm/outFile.txt");
//dataout=new FileOutputStream(out,true);
out= new FileWriter("d://jm/OutFile.txt",true);
dataout= new PrintWriter(out);
dataout.println("System Date: " +dateFormat.format(current.getTime()));
getInput1=tF.getText ();
getInput2=new String(pwdF.getPassword ());
if(dataout!=null)
{if(bo)
{dataout.println ("登陆成功!");
dataout.close ();
out.close ();
}
else
{dataout.println ("登陆失败!");
//dataout.write (getInput1);
dataout.println ("用户名:"+getInput1);
dataout.println ("密码:"+getInput2);
System.out.println (bo);
out.close ();
}
}
} catch(IOException e)
{System.out.println (e);}
}
}
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.io.*;
import java.net.*;
import java.lang.reflect.*;import sun.net.ftp.*;
import sun.net.*;import javax.swing.*;
import javax.swing.border.*;
import javax.swing.event.*;public class trans extends JFrame
{
public static int BUFFER_SIZE = 10240; protected JTextField m_txtFile;
protected JTextArea m_monitor;
protected JProgressBar m_progress;
protected JButton m_btGet;
protected JButton m_btClose;
protected JFileChooser m_chooser; protected String m_sLocalFile;
protected String m_sHostFile; public trans() {
super("File trans");
JPanel p = new JPanel();
p.setLayout(new FlowLayout());
p.setBorder(new EmptyBorder(5, 5, 5, 5)); p.add(new JLabel("File:"));
m_txtFile = new JTextField(20);
p.add(m_txtFile); m_monitor = new JTextArea(5, 20);
m_monitor.setEditable(false);
JScrollPane ps = new JScrollPane(m_monitor);
p.add(ps); m_progress = new JProgressBar();
m_progress.setStringPainted(true);
m_progress.setBorder(new BevelBorder(BevelBorder.LOWERED,
Color.white, Color.gray));
m_progress.setMinimum(0);
JPanel p1 = new JPanel(new BorderLayout());
p1.add(m_progress, BorderLayout.CENTER);
p.add(p1); m_btGet = new JButton("Get");
ActionListener lst = new ActionListener()
{ public void actionPerformed(ActionEvent e)
{Thread downloader = new Thread()
{public void run()
{getFile();
}
};
downloader.start();
}
};
m_btGet.addActionListener(lst);
m_btGet.setMnemonic('g');
p.add(m_btGet); m_btClose = new JButton("Close");
lst = new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
};
m_btClose.addActionListener(lst);
m_btClose.setDefaultCapable(true);
m_btClose.setMnemonic('g');
p.add(m_btClose); getContentPane().add(p, BorderLayout.CENTER);
WindowListener wndCloser = new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
};
addWindowListener(wndCloser);
setSize(340,340);
setResizable(false);
setVisible(true);
} public void setButtonStates(boolean state) {
m_btGet.setEnabled(state);
}
protected void getFile()
{m_sLocalFile = m_txtFile.getText();
File getf=new File(m_sLocalFile);
byte[] buffer = new byte[BUFFER_SIZE];
try {
int size = (int)(getf.length ());
if (size > 0) {
message("File " + getf.getName () + ": " + size + " bytes");
setProgressMaximum(size);
}
else
message("File " + getf.getName () + ": size unknown");
int counter = 0;
if (size > 0) {
for(;counter<size;counter++)
{
setProgressValue(counter);
long proc = (long) Math.round(m_progress.getPercentComplete() * 100);
setProgressString(proc + " %");
System.out.println(proc);
}System.out.println(counter);
}
else {
int kb = counter/1024;
setProgressString(kb + " KB");
} }
catch (Exception ex) {
message("Error: "+ex.toString());
}
}
protected void message(final String str) {
if (str != null) {
Runnable runner = new Runnable() {
public void run() {
m_monitor.append(str + '\n');
m_monitor.repaint();
}
};
SwingUtilities.invokeLater(runner);
}
} protected void setProgressValue(final int value) {
Runnable runner = new Runnable() {
public void run() {
m_progress.setValue(value);
}
};
SwingUtilities.invokeLater(runner);
} protected void setProgressMaximum(final int value) {
Runnable runner = new Runnable() {
public void run() {
m_progress.setMaximum(value);
}
};
SwingUtilities.invokeLater(runner);
} protected void setProgressString(final String string) {
Runnable runner = new Runnable() {
public void run() {
m_progress.setString(string);
}
};
SwingUtilities.invokeLater(runner);
} public static void main(String argv[]) {
new trans();
}
}