mainpanel.java

实现银行系统的一系列功能,比如存款取款透支查询余额等

package tarena.bank.view;

import javax.swing.*;
import java.awt.*;
import java.util.List;
import java.util.ArrayList;
import java.awt.event.*;
import java.io.*;
import java.net.Socket;
import java.net.UnknownHostException;

public class MainPanel extends JFrame implements Runnable, ActionListener {

	private JLabel label1, label2, label3;

	private JButton button1, button2;

	private JTextField textField1;

	private JPasswordField passwordField;

	private DataInputStream inStream = null;

	private DataOutputStream outStream = null;

	private Dimension screemSize = Toolkit.getDefaultToolkit().getScreenSize();

	public MainPanel() {
		super("银行账户管理系统");
		getContentPane().setBackground(Color.DARK_GRAY);
		this.setLayout(null);
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		this.setBounds(100, 100, 500, 375);
		label1 = new JLabel("欢迎使用BAM在线系统");
		label1.setBackground(Color.DARK_GRAY);
		label1.setHorizontalTextPosition(SwingConstants.CENTER);
		label1.setHorizontalAlignment(SwingConstants.CENTER);
		label1.setForeground(Color.BLUE);
		label1.setFont(new Font("幼圆", Font.PLAIN, 28));
		label1.setBounds(81, 23, 337, 47);
		this.add(label1);
		label2 = new JLabel("用户账号:");
		label2.setBounds(120, 101, 105, 33);
		label2.setFont(new Font("@幼圆", Font.PLAIN, 18));
		label2.setBackground(Color.LIGHT_GRAY);
		label2.setForeground(Color.blue);
		this.add(label2);
		label3 = new JLabel("用户密码:");
		label3.setFont(new Font("@幼圆", Font.PLAIN, 18));
		label3.setBackground(Color.LIGHT_GRAY);
		label3.setForeground(Color.blue);
		label3.setBounds(120, 140, 105, 33);
		this.add(label3);
		textField1 = new JTextField(8);
		textField1.setBackground(Color.LIGHT_GRAY);
		textField1.setFont(new Font("@幼圆", Font.PLAIN, 16));
		textField1.setBounds(243, 108, 130, 26);
		this.add(textField1);

		passwordField = new JPasswordField();
		passwordField.setBackground(Color.LIGHT_GRAY);
		passwordField.setFont(new Font("@幼圆", Font.PLAIN, 16));
		passwordField.setBounds(243, 140, 130, 26);
		this.add(passwordField);
		button1 = new JButton("登录");
		button1.setFont(new Font("@幼圆", Font.PLAIN, 18));
		button1.setBackground(Color.LIGHT_GRAY);
		button1.setForeground(Color.MAGENTA);
		button1.setBounds(129, 197, 112, 33);
		button1.addActionListener(this);
		this.add(button1);
		button2 = new JButton("注册");
		button2.setFont(new Font("@幼圆", Font.PLAIN, 18));
		button2.setBackground(Color.LIGHT_GRAY);
		button2.setForeground(Color.MAGENTA);
		button2.setBounds(256, 197, 112, 33);
		button2.addActionListener(this);
		this.add(button2);
		this.setVisible(true);
		this.setLocation((screemSize.width - 400) / 2,
				(screemSize.height - 400) / 2);
	}

	public static void main(String[] args) {
		try {
			MainPanel frame = new MainPanel();
			frame.start();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	//发送消息的方法
	private void send(String str) {
		try {
			outStream.writeUTF(str);
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	public void actionPerformed(ActionEvent e) {
		if (e.getSource() == button1) {
			send("Loading" + textField1.getText() + "/"
					+ String.valueOf(passwordField.getPassword()));
		} else if (e.getSource() == button2) {
			new RegisterPanel().start();
		}
	}

	public void start() {
		Thread thread = new Thread(this);
		// 打开线程
		thread.start();
	}

	public void run() {
		try {
			Socket socket = new Socket("127.0.0.1", 8888);
			// System.out.println(socket);
			outStream = new DataOutputStream(socket.getOutputStream());
			inStream = new DataInputStream(socket.getInputStream());

			while (true) {
				String str = inStream.readUTF();// 读取服务器发来的信息
				if (str.substring(0, 4).equals("登录成功")) {
					List l = update(str.substring(4));
					// new 登录后的界面
					new OperationPanel((String) l.get(0), (String) l.get(1),
							(String) l.get(2), (String) l.get(3), (String) l
									.get(4), (String) l.get(5), (String) l
									.get(6)).start();
					socket.close();
					this.dispose();
				}
			}
		} catch (UnknownHostException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}

	}
	//该方法用于解析服务器发送来的登录成功消息，从中分离出new OperationPanel()中的7个参数
	private List update(String s) {
		List<String> list = new ArrayList<String>();
		int index = 0;
		if (s.charAt(s.length() - 2) == '0') {
			int tag = 0;
			for (int i = 0; i < s.length(); i++) {
				if (s.charAt(i) == '/') {
					tag++;
					list.add(s.substring(index, i));
					if (tag == 4) {
						list.add("0.0");
						list.add("0.0");
					}
					index = i + 1;
				}
			}
			list.remove(6);
			list.add("储蓄账户");
		} else if (s.charAt(s.length() - 2) == '1') {
			int tag = 0;
			for (int i = 0; i < s.length(); i++) {
				if (s.charAt(i) == '/') {
					tag++;
					list.add(s.substring(index, i));
					if (tag == 5) {
						list.add("0.0");
					}
					index = i + 1;
				}
			}
			list.remove(6);
			list.add("信用账户");
		} else if (s.charAt(s.length() - 2) == '2') {
			int tag = 0;
			for (int i = 0; i < s.length(); i++) {
				if (s.charAt(i) == '/') {
					tag++;
					list.add(s.substring(index, i));
					if (tag == 4) {
						list.add("0.0");
					}
					index = i + 1;
				}
			}
			list.remove(6);
			list.add("贷款储蓄账户");
		} else if (s.charAt(s.length() - 2) == '3') {
			for (int i = 0; i < s.length(); i++) {
				if (s.charAt(i) == '/') {
					list.add(s.substring(index, i));
					index = i + 1;
				}
			}
			list.remove(6);
			list.add("贷款信用账户");
		}
		return list;
	}
}