setautologinframe.java

图书管理系统：用户管理

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.util.Properties;
public class SetAutoLoginFrame extends JFrame implements ActionListener{
	static final long serialVersionUID=80;
	JButton confirmbutton,cancelbutton;
	JTextField addressfield,userfield,portfield;
	JPasswordField passwordfield,confirmfield;
	JLabel addresslabel,userNamelabel,passwordlabel,confirmlabel,portlabel;
	Checkbox auto;
	String fileName;
	Container container;
	Dimension screenSize;
	Toolkit tool;
	MainFrame frame;
	SetAutoLoginFrame(String title,MainFrame frame){
		super(title);
		this.frame=frame;
		setResizable(false);
		setSize(240,250);
		tool=getToolkit();
		screenSize=tool.getScreenSize();
		container=getContentPane();
		container.setLayout(null);
		container.setBackground(Color.ORANGE);
		confirmbutton=new JButton("确定");
		cancelbutton=new JButton("取消");
		confirmbutton.addActionListener(this);
		cancelbutton.addActionListener(this);
		addressfield=new JTextField();
		userfield=new JTextField();
		portfield=new JTextField();
		passwordfield=new JPasswordField();
		confirmfield=new JPasswordField();
		addresslabel=new JLabel("服务器");
		portlabel=new JLabel("端口");
		userNamelabel=new JLabel("用户名");
		passwordlabel=new JLabel("密码");
		confirmlabel=new JLabel("确认密码");
		auto=new Checkbox("启动时自动登录");
		addressfield.setText(frame.address);
		userfield.setText(frame.user);
		passwordfield.setText(frame.password);
		confirmfield.setText(frame.password);
		portfield.setText(frame.port);
		fileName = "AutoLogin.properties";
		File file=new File(fileName);
		if(file.exists()){
			auto.setState(true);
		}
		container.add(addresslabel);
		addresslabel.setBounds(20,5,40,30);
		container.add(addressfield);
		addressfield.setBounds(60,9,160,22);
		container.add(userNamelabel);
		userNamelabel.setBounds(20,40,40,30);
		container.add(userfield);
		userfield.setBounds(60,44,160,22);
		container.add(passwordlabel);
		passwordlabel.setBounds(30,75,30,30);
		container.add(passwordfield);
		passwordfield.setBounds(60,79,160,22);
		container.add(confirmlabel);
		confirmlabel.setBounds(5,110,60,30);
		container.add(confirmfield);
		confirmfield.setBounds(60,114,160,22);
		container.add(portlabel);
		portlabel.setBounds(30,145,30,30);
		container.add(portfield);
		portfield.setBounds(60,149,55,22);
		container.add(auto);
		auto.setBounds(120,145,100,30);
		container.add(confirmbutton);
		confirmbutton.setBounds(30,185,70,30);
		container.add(cancelbutton);
		cancelbutton.setBounds(150,185,70,30);
		Dimension frameSize=getSize();
		setLocation((screenSize.width - frameSize.width) / 2,(screenSize.height - frameSize.height) / 2);
		setVisible(true);
		setDefaultCloseOperation(DISPOSE_ON_CLOSE);
	}
	public void actionPerformed(ActionEvent e){
		if(e.getSource()==confirmbutton){
			File file=new File(fileName);
			if(auto.getState()){
				String server=addressfield.getText();
				String userstring=userfield.getText();
				String passwordstring=new String(passwordfield.getPassword());
				String confirmstring=new String(confirmfield.getPassword());
				String portstring=portfield.getText();
				if(server.length()!=0&&userstring.length()!=0&&passwordstring.length()!=0&&confirmstring.length()!=0&&portstring.length()!=0){
					if(passwordstring.equals(confirmstring)){
						if(file.exists()){
							file.delete();
						}
						Properties props = new Properties();
						props.setProperty("Address",server);
						props.setProperty("Port",portstring);
						props.setProperty("User",userstring);
						props.setProperty("Password",passwordstring);
						try{
							PrintStream out=new PrintStream(new FileOutputStream(fileName));
							props.list(out);
							out.close();
							frame.address=server;
							frame.port=portstring;
							frame.user=userstring;
							frame.password=passwordstring;
							dispose();
						}
						catch(IOException e2){
							JOptionPane.showMessageDialog(this,e2);
						}
					}
					else{
						JOptionPane.showMessageDialog(this,"两次输入的密码要一致");
					}
				}
				else{
					JOptionPane.showMessageDialog(this,"文本框不能为空");
				}
			}
			else{
				if(file.exists()){
					file.delete();
				}
				dispose();
			}
		}
		else{
			dispose();
		}
	}
}