IO流、Fram写了一个登录注册

主要分为商户和用户，将他们注册的账号和密码存在文件中，用IO流去读取

package com.kd.dao;

public interface MerchantsDao {
	public boolean mlogin(String userName, String passwd);

	public boolean mregist(String userName, String passwd) throws Exception;
}
package com.kd.dao;

public interface UserDao {
	public boolean ulogin(String userName,String passwd);

	public boolean uregister(String userName, String passwd) throws Exception;
}
package com.kd.dao.impl;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Properties;
import java.util.Set;

import com.kd.dao.MerchantsDao;
import com.kd.dao.UserDao;

public class DaoImpl implements UserDao, MerchantsDao {

	@Override
	public boolean mregist(String userName, String passwd) throws Exception {
		Properties properties = new Properties();
		properties.setProperty(userName, passwd);
		properties.store(new FileWriter("Merchants.txt", true), "商家");
		return true;
	}

	@Override
	public boolean mlogin(String userName, String passwd) {
		Properties properties = new Properties();
		try {
			properties.load(new FileInputStream("Merchants.txt"));
			Set<Object> set = properties.keySet();

			for (Object key : set) {
				if (userName.equals(key) && passwd.equals(properties.get(key))) {
					System.out.println("登录成功!!");
					return true;
				}
			}

		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}

		return false;

	}

	@Override
	public boolean uregister(String userName, String passwd) throws Exception {
		Properties properties = new Properties();
		properties.setProperty(userName, passwd);
		properties.store(new FileWriter("User.txt", true), "顾客");
		return true;
	}

	@Override
	public boolean ulogin(String userName, String passwd) {
		Properties properties = new Properties();
		try {
			properties.load(new FileInputStream("User.txt"));
			Set<Object> set = properties.keySet();

			for (Object key : set) {
				if (userName.equals(key) && passwd.equals(properties.get(key))) {
					System.out.println("登录成功!!");
					return true;
				}
			}

		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}

		return false;
	}

}
package com.kd.view;

import java.awt.FlowLayout;
import java.awt.Frame;
import java.awt.Label;
import java.awt.TextField;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;

import javax.swing.JButton;
import javax.swing.JRadioButton;

import com.kd.dao.impl.DaoImpl;

public class LoginView {
	Frame frame = new Frame("潮流前线");

	public LoginView() {
		init();
	}

	public void init() {
		frame.setBounds(500, 700, 250, 200);
		Label userlabel = new Label("用户名:");
		Label passwdlabel = new Label(" 密  码:");
		TextField userText = new TextField(20);
		TextField passwdText = new TextField(20);

		JRadioButton jrb1 = new JRadioButton("  商     户");
		JRadioButton jrb2 = new JRadioButton("  顾     客");

		JButton loginButton = new JButton("登      录");
		JButton registButton = new JButton("注      册");

		FlowLayout layout = new FlowLayout();

		frame.setLayout(layout);
		frame.add(userlabel);
		frame.add(userText);
		frame.add(passwdlabel);
		frame.add(passwdText);
		frame.add(jrb1);
		frame.add(jrb2);
		frame.add(loginButton);
		frame.add(registButton);

		frame.setVisible(true);

		registButton.addActionListener(new ActionListener() {

			@Override
			public void actionPerformed(ActionEvent e) {
				frame.dispose();
				RegistView registView = new RegistView();
			}
		});

		loginButton.addActionListener(new ActionListener() {

			@Override
			public void actionPerformed(ActionEvent e) {
				String usertext = userText.getText();
				String passwdtext = passwdText.getText();

				if (jrb1.isSelected()) {
					boolean result = new DaoImpl().mlogin(usertext, passwdtext);
					if (result) {
						frame.dispose();
						MerchantsView merchantsView = new MerchantsView();
					}
				} else {
					boolean result = new DaoImpl().ulogin(usertext, passwdtext);
					if (result) {
						frame.dispose();
						UserView userView = new UserView();
					}
				}
			}
		});

		windowLis();
	}

	public void windowLis() {
		frame.addWindowListener(new WindowListener() {

			@Override
			public void windowOpened(WindowEvent e) {

			}

			@Override
			public void windowIconified(WindowEvent e) {

			}

			@Override
			public void windowDeiconified(WindowEvent e) {

			}

			@Override
			public void windowDeactivated(WindowEvent e) {

			}

			@Override
			public void windowClosing(WindowEvent e) {
				System.exit(0);
			}

			@Override
			public void windowClosed(WindowEvent e) {

			}

			@Override
			public void windowActivated(WindowEvent e) {

			}
		});
	}
}
package com.kd.view;

import java.awt.FlowLayout;
import java.awt.Frame;
import java.awt.Label;
import java.awt.TextField;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;

import javax.swing.JButton;
import javax.swing.JRadioButton;

import com.kd.dao.MerchantsDao;
import com.kd.dao.UserDao;
import com.kd.dao.impl.DaoImpl;

public class RegistView {
	MerchantsDao merchants = new DaoImpl();
	UserDao user = new DaoImpl();
	Frame frame = new Frame("潮流前线用户注册");

	public RegistView() {
		init();
	}

	public void init() {
		frame.setBounds(500, 700, 300, 200);
		Label userlabel = new Label("注册用户名:");
		Label passwdlabel = new Label("注 册 密 码:");
		TextField userText = new TextField(20);
		TextField passwdText = new TextField(20);
		JRadioButton jrb1 = new JRadioButton("商     户");
		JRadioButton jrb2 = new JRadioButton("顾      客");
		Label label = new Label("            ");
		JButton button = new JButton("确       认");
		JButton button2 = new JButton("返         回");
		FlowLayout layout = new FlowLayout();

		frame.setLayout(layout);
		frame.add(userlabel);
		frame.add(userText);
		frame.add(passwdlabel);
		frame.add(passwdText);
		frame.add(jrb1);
		frame.add(label);
		frame.add(jrb2);

		frame.add(button);
		frame.add(button2);

		button.addActionListener(new ActionListener() {

			@Override
			public void actionPerformed(ActionEvent e) {
				String usertext = userText.getText();
				String passwdtext = passwdText.getText();

				boolean result;
				if (jrb1.isSelected()) {

					try {
						result = merchants.mregist(usertext, passwdtext);
						if (result) {
							System.out.println("注册成功!!");
						} else {
							System.out.println("注册失败，请重新注册!!");
						}
					} catch (Exception e1) {
						e1.printStackTrace();
					}
				} else {

					try {
						result = user.uregister(usertext, passwdtext);
						if (result) {
							System.out.println("注册成功!!");
						} else {
							System.out.println("注册失败，请重新注册!!");
						}
					} catch (Exception e1) {
						e1.printStackTrace();
					}
				}

				// try {
				// new DaoImpl().regist(usertext, passwdtext);
				// } catch (Exception e1) {
				// e1.printStackTrace();
				// }
			}
		});

		button2.addActionListener(new ActionListener() {

			@Override
			public void actionPerformed(ActionEvent e) {
				frame.dispose();
				LoginView loginView = new LoginView();
			}
		});

		frame.setVisible(true);

		windowLis(frame);
	}

	public void windowLis(Frame frame) {
		frame.addWindowListener(new WindowListener() {

			@Override
			public void windowOpened(WindowEvent e) {
				// TODO Auto-generated method stub

			}

			@Override
			public void windowIconified(WindowEvent e) {
				// TODO Auto-generated method stub

			}

			@Override
			public void windowDeiconified(WindowEvent e) {
				// TODO Auto-generated method stub

			}

			@Override
			public void windowDeactivated(WindowEvent e) {
				// TODO Auto-generated method stub

			}

			@Override
			public void windowClosing(WindowEvent e) {
				// TODO Auto-generated method stub
				System.exit(0);
			}

			@Override
			public void windowClosed(WindowEvent e) {
				// TODO Auto-generated method stub

			}

			@Override
			public void windowActivated(WindowEvent e) {
				// TODO Auto-generated method stub

			}
		});
	}

}
package com.kd.test;

import com.kd.view.LoginView;

public class Test {
	public static void main(String[] args) {
		LoginView loginView = new LoginView();
	}
}

回头再补一个用数据库写的登录注册，哈哈，新手上路请多关照！！