atm_client.java

来自「简单ATM（Automatic Teller Machine）系统的基本功能包括」· Java 代码 · 共 544 行 · 第 1/2 页

package atm;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.net.URL;
import java.io.*;
import java.io.PrintStream;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.Socket;
public class ATM_client extends WindowAdapter implements ActionListener
{	Frame winOperate,winLogin;
	MenuBar myMenu;
	Menu fileMenu,helpMenu;
	MenuItem fileMenuItem1,helpMenuItem1;
	MyDialog dialogAbout;Dialog dialogErr;
	TextField tfUser,tfPwd;
	Panel plLogin=new Panel();Panel plMenu=new Panel();Panel plOperate=new Panel();
	Label logo,lblErr;
	Button btnLogin,btnCancel,btnBalance,btnDeposit,btnWithdraw,btnChange,btnExit,btnOK;
	String username;
	String password;
	boolean flag=false;
	String url="jdbc:odbc:account";

        private static Socket socket;
        private static BufferedReader is;
        private static PrintStream out;
        private static String  SERVER_HOST = "localhost";

	ATM_client(){
            winLogin=new Frame("登录");
            winOperate=new Frame("简易自动取款机");
		winOperate.setLayout(new BorderLayout());
                winLogin.setLayout(new BorderLayout());
		//设置菜单
		myMenu=new MenuBar();
		fileMenu=new Menu("文件");
		helpMenu=new Menu("帮助");
		myMenu.add(fileMenu);
                myMenu.add(helpMenu);
		fileMenuItem1=new MenuItem("退出");
		helpMenuItem1=new MenuItem("关于");
		myMenu.add(fileMenu);
                myMenu.add(helpMenu);
		fileMenu.add(fileMenuItem1);
                helpMenu.add(helpMenuItem1);
		fileMenuItem1.addActionListener(new ActionListener1());
		helpMenuItem1.addActionListener(new ActionListener1());
		winOperate.setMenuBar(myMenu);                  //或winOperate.add(myMenu)
		//设置对话框（帮助菜单)
		dialogAbout=new MyDialog(winOperate,"关于...",true);//必须得先关
		dialogAbout.addWindowListener(this);

		dialogErr=new Dialog(winLogin,"交易失败！",true);//必须得先关
		dialogErr.addWindowListener(this);
		//用户名及密码
		tfUser=new TextField(10);
                tfUser.setBackground(Color.yellow);
                tfUser.setForeground(Color.blue);

		tfPwd=new TextField(10);
                tfPwd.setEchoChar('*');
                tfPwd.setBackground(Color.yellow);
                tfPwd.setForeground(Color.blue);
		//设置各个Button
		winLogin.add(plLogin,BorderLayout.CENTER);
		plLogin.setLayout(new FlowLayout());
                plLogin.setBackground(Color.red);
                plLogin.add(new Label(" 帐号和密码必须由六位数字组成"));
		plLogin.add(new Label("用户名:"));
		plLogin.add(tfUser);
		plLogin.add(new Label("密   码: "));
		plLogin.add(tfPwd);

		btnLogin=new Button("登录");
		btnCancel=new Button("清除");
		btnLogin.addActionListener(new ActionListener1());
		btnCancel.addActionListener(new ActionListener1());

		btnBalance=new Button("余额");
		btnBalance.setForeground(Color.black);
		btnBalance.setBackground(Color.WHITE);
		btnBalance.addActionListener(new ActionListener1());

		btnWithdraw=new Button("取款");
		btnWithdraw.setForeground(Color.black);
		btnWithdraw.setBackground(Color.WHITE);
		btnWithdraw.addActionListener(new ActionListener1());

                btnDeposit=new Button("存款");
                btnDeposit.setForeground(Color.black);
                btnDeposit.setBackground(Color.WHITE);
                btnDeposit.addActionListener(new ActionListener1());

		btnChange=new Button("改密");
		btnChange.setForeground(Color.black);
		btnChange.setBackground(Color.WHITE);
		btnChange.addActionListener(new ActionListener1());

		btnExit=new Button("退出");
		btnExit.setForeground(Color.black);
		btnExit.setBackground(Color.WHITE);
		btnExit.addActionListener(new ActionListener1());

                btnOK=new Button("确定");
		//btnOK.addActionListener(new ActionListener1());
                btnOK.addActionListener(this);
		plLogin.add(btnLogin);
		plLogin.add(btnCancel);

		winOperate.add(plMenu,BorderLayout.EAST);winOperate.add(plOperate,BorderLayout.CENTER);
		plMenu.setLayout(new GridLayout(5,1));plMenu.setBackground(Color.red);
		plMenu.add(btnBalance);
		plMenu.add(btnWithdraw);
                plMenu.add(btnDeposit);
		plMenu.add(btnChange);
		plMenu.add(btnExit);

		logo=new Label("            欢迎使用ATM系统，请选择操作！");
		logo.setFont(new Font("Serif",Font.PLAIN,15));
                lblErr=new Label("注意：帐号和密码由六位数字组成，单次交易金额不超过2000元！");
                lblErr.setBackground(Color.red);lblErr.setForeground(Color.blue);
                 dialogErr.add(lblErr);dialogErr.setBackground(Color.yellow);
                 dialogErr.add(btnOK);
                 dialogErr.setSize(400, 100);
                 dialogErr.setLayout(new FlowLayout());


		winOperate.add(logo,BorderLayout.NORTH);winOperate.setBackground(Color.red);
		winOperate.setSize(600,400);winLogin.setSize(190,180);
                winOperate.addWindowListener(this);winLogin.addWindowListener(this);

                //设置窗体位置,居中显示
                Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
                Dimension frameSize = winOperate.getSize();
                winOperate.setLocation((screenSize.width - frameSize.width) / 2,
                                 (screenSize.height - frameSize.height) / 2);
                frameSize = winLogin.getSize();
                winLogin.setLocation((screenSize.width - frameSize.width) / 2,
                                 (screenSize.height - frameSize.height) / 2);

                winOperate.setVisible(false);winLogin.setVisible(true);

                frameSize = dialogErr.getSize();
                dialogErr.setLocation((screenSize.width - frameSize.width) / 2,
                                 (screenSize.height - frameSize.height) / 2);

                frameSize = dialogAbout.getSize();
                dialogAbout.setLocation((screenSize.width - frameSize.width) / 2,
                                 (screenSize.height - frameSize.height) / 2);

	}

	public static void main(String args[])
	{
		try
                    {
			            if(args.length>0)
			            	SERVER_HOST=args[0];
                        socket = new Socket(SERVER_HOST, Msg.PORTNUM);
                        // Set up input and output stream filters.
                        is =new BufferedReader(
                                        new InputStreamReader(socket.getInputStream()));
                        out = new PrintStream(socket.getOutputStream());
                        //显示logo图片
                        new ATM_client();
                        Thread thread;
                        Logo lg = new Logo("logo.gif");
                        thread = new Thread(lg);
                        thread.start();
                    }
                catch(Exception e)
                    {
                            //System.out.println(e.toString());
                    }
	}
	public void windowClosing(WindowEvent e)
	{
		if(e.getSource()==winOperate)
		{
			winOperate.dispose();
                        winLogin.setVisible(true);
                        tfUser.setText("");
			tfPwd.setText("");
		}
                if(e.getSource()==winLogin)
		{
                    exitPro();
			//System.exit(0);
		}
		if(e.getSource()==dialogAbout)
		{
			dialogAbout.dispose();
		}
		if(e.getSource()==dialogErr)
		{
			dialogErr.dispose();
		}

	}
        public void exitPro()
        {
            // Close streams and socket.
            try{
                is.close();
                out.close();
                socket.close();
            }catch(IOException e){
                //System.out.println(e.toString());
            }
            System.exit(0);
        }
          public void actionPerformed(ActionEvent ae)
                  {
                      if (ae.getActionCommand().equals("确定"))
                          dialogErr.dispose();
                      tfPwd.setText("");
                  }

	public void login(String account,String pwd)
	{
             try
                {
                    //check account and password
                    if(Msg.isValid(account,Msg.ACCOUNT_LENGTH)
                       && Msg.isValid(pwd,Msg.PWD_LENGTH))
                    {
                        String msg=Character.toString(Msg.CMD_LOGIN)
                            + account +Character.toString(Msg.SEPARATOR) + pwd;
                        out.println(msg);
                        String line;
                        if ((line = is.readLine()) != null) {
                            System.out.println("Received: "+line);
                            char cmd = line.charAt(0);
                            if (cmd == Msg.CMD_LOGIN) {
                                char result = line.charAt(1);
                                if (result == Msg.SUCCESSFUL) { //登录成功
                                    flag = true;
                                    plOperate.removeAll();
                                    plOperate.setBackground(Color.red);
                                    winOperate.setVisible(true);
                                    winLogin.setVisible(false);
                                    return;
                                }
                            }
                        }
                    }
                   dialogErr.setVisible(true);
              }
             catch(Exception ex)
             {
                     //System.out.println(ex.toString());
             }

	}

	public void queryBalance()
        {
                try {
                    //check account and password
                     String msg=Character.toString(Msg.CMD_QUERY)
                                +Character.toString(Msg.SEPARATOR);
                        out.println(msg);
                        String line;
                        if ((line = is.readLine()) != null) {
                            System.out.println("Received: "+line);
                            char cmd = line.charAt(0);
                            if (cmd == Msg.CMD_QUERY) {
                                String balance = line.substring(1);
                                if (balance != Character.toString(Msg.FAILED)) { //成功
                                    plOperate.removeAll();