addmembers.java

图书管理系统v1.0是使用JAVA语言开发的解决图书基本管理的一个应用程序。 该系统能够实现简单的图书和用户管理

package lib;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class AddMembers extends JInternalFrame {
	//for creating the North Panel
	private JPanel northPanel = new JPanel();
	//for creaing the North Label
	private JLabel northLabel = new JLabel("用户信息");

	//for creating the Center Panel
	private JPanel centerPanel = new JPanel();
	//for creating an Internal Panel in the center panel
	private JPanel informationLabelPanel = new JPanel();
	//for creating an array of JLabel
	private JLabel[] informationLabel = new JLabel[7];
	//for creating an array of String
	private String[] informaionString = {" 学号: ", " 输入密码: ", " 重新输入密码: ",
	                                     " 姓名: ", " 电子邮件地址: ", " 专业:", " 到期时间: "};
	//for creating an Internal Panel in the center panel
	private JPanel informationTextFieldPanel = new JPanel();
	//for creating an array of JTextField
	private JTextField[] informationTextField = new JTextField[5];
	//for creating an array of JPasswordField
	private JPasswordField[] informationPasswordField = new JPasswordField[2];

	//for creating an Internal Panel in the center panel
	private JPanel insertInformationButtonPanel = new JPanel();
	//for creating a button
	private JButton insertInformationButton = new JButton("插入用户记录",new ImageIcon(ClassLoader.getSystemResource("images/add.gif")));

	//for creating the South Panel
	private JPanel southPanel = new JPanel();
	//for creating a button
	private JButton OKButton = new JButton("退出",new ImageIcon(ClassLoader.getSystemResource("images/exit.gif")));

	//create objects from another classes for using them in the ActionListener
	private Members member;
	//for creating an array of string to store the data
	private String[] data;

	//for checking the password
	public boolean isPasswordCorrect() {
		if (informationPasswordField[0].getText().equals(informationPasswordField[1].getText()))
			data[1] = informationPasswordField[1].getText();
		else if (!informationPasswordField[0].getText().equals(informationPasswordField[1].getText()))
			return false;

		return true;
	}

	//for checking the information from the text field
	public boolean isCorrect() {
		data = new String[6];
		for (int i = 0; i < informationLabel.length; i++) {
			if (i == 0) {
				if (!informationTextField[i].getText().equals("")) {
					data[i] = informationTextField[i].getText();
				}
				else
					return false;
			}
			if (i == 1 || i == 2) {
				if (informationPasswordField[i - 1].getText().equals(""))
					return false;
			}
			if (i == 3 || i == 4 || i == 5 || i == 6) {
				if (!informationTextField[i - 2].getText().equals("")) {
					data[i - 1] = informationTextField[i - 2].getText();
				}
				else
					return false;
			}
		}
		return true;
	}

	//for setting the array of JTextField & JPasswordField to null
	public void clearTextField() {
		for (int i = 0; i < informationLabel.length; i++) {
			if (i == 0)
				informationTextField[i].setText(null);
			if (i == 1 || i == 2)
				informationPasswordField[i - 1].setText(null);
			if (i == 3 || i == 4 || i == 5 || i == 6)
				informationTextField[i - 2].setText(null);
		}
	}

	//constructor of addMembers
	public AddMembers() {
		//for setting the title for the internal frame
		super("添加用户", false, true, false, true);
		//for setting the icon
		setFrameIcon(new ImageIcon(ClassLoader.getSystemResource("images/Add16.gif")));
		//for getting the graphical user interface components display area
		Container cp = getContentPane();

		//for setting the layout
		northPanel.setLayout(new FlowLayout(FlowLayout.CENTER));
		//for setting the font
		northLabel.setFont(new Font("Default", Font.BOLD, 14));
		//for adding the label to the panel
		northPanel.add(northLabel);
		//for adding the panel to the container
		cp.add("North", northPanel);

		//for setting the layout
		centerPanel.setLayout(new BorderLayout());
		//for setting the border to the panel
		centerPanel.setBorder(BorderFactory.createTitledBorder("添加用户:"));
		//for setting the layout
		informationLabelPanel.setLayout(new GridLayout(7, 1, 1, 1));
		//for setting the layout
		informationTextFieldPanel.setLayout(new GridLayout(7, 1, 1, 1));
		/***********************************************************************
		 * for adding the strings to the labels, for setting the font		   *
		 * and adding these labels to the panel.							   *
		 * finally adding the panel to the container						   *
		 ***********************************************************************/
		for (int i = 0; i < informationLabel.length; i++) {
			informationLabelPanel.add(informationLabel[i] = new JLabel(informaionString[i]));
			informationLabel[i].setFont(new Font("Default", Font.BOLD, 13));
		}
		//for adding the panel to the centerPanel
		centerPanel.add("West", informationLabelPanel);

		/***********************************************************************
		 * for adding the JTextField and JPasswordField to the panel and       *
		 * setting the font to the JTextField and JPasswordField. Finally      *
		 * adding the panel to the centerPanel                                 *
		 ***********************************************************************/
		for (int i = 0; i < informationLabel.length; i++) {
			if (i == 1 || i == 2) {
				informationTextFieldPanel.add(informationPasswordField[i - 1] = new JPasswordField(25));
				informationPasswordField[i - 1].setFont(new Font("Default", Font.PLAIN, 13));
			}
			if (i == 0) {
				informationTextFieldPanel.add(informationTextField[i] = new JTextField(25));
				informationTextField[i].setFont(new Font("Default", Font.PLAIN, 13));
			}
			if (i == 3 || i == 4 || i == 5 || i == 6) {
				informationTextFieldPanel.add(informationTextField[i - 2] = new JTextField(25));
				informationTextField[i - 2].setFont(new Font("Default", Font.PLAIN, 13));
			}
		}
		centerPanel.add("East", informationTextFieldPanel);

		/***********************************************************************
		 * for setting the layout for the panel,setting the font for the button*
		 * and adding the button to the panel.								   *
		 * finally adding the panel to the container						   *
		 ***********************************************************************/
		insertInformationButtonPanel.setLayout(new FlowLayout(FlowLayout.RIGHT));
		insertInformationButton.setFont(new Font("Default", Font.BOLD, 13));
		insertInformationButtonPanel.add(insertInformationButton);
		centerPanel.add("South", insertInformationButtonPanel);
		cp.add("Center", centerPanel);

		/***********************************************************************
		 * for setting the layout for the panel,setting the font for the button*
		 * adding the button to the panel & setting the border.				   *
		 * finally adding the panel to the container						   *
		 ***********************************************************************/
		southPanel.setLayout(new FlowLayout(FlowLayout.RIGHT));
		OKButton.setFont(new Font("Default", Font.BOLD, 13));
		southPanel.add(OKButton);
		southPanel.setBorder(BorderFactory.createEtchedBorder());
		cp.add("South", southPanel);

		/***********************************************************************
		 * for adding the action listener to the button,first the text will be *
		 * taken from the JTextField[] and make the connection for database,   *
		 * after that update the table in the database with the new value      *
		 ***********************************************************************/
		insertInformationButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent ae) {
				//for checking if there is a missing information
				if (isCorrect()) {
					if (isPasswordCorrect()) {
						Thread runner = new Thread() {
							public void run() {
								member = new Members();
								//for checking if there is no same information in the database
								member.connection("SELECT * FROM Members WHERE ID = " + data[0]);
								int ID = member.getID();
								if (Integer.parseInt(data[0]) != ID) {
									member.update("INSERT INTO Members (ID,Password,Name,EMail,Major,Expired) VALUES (" +
									        data[0] + ", '" + data[1] + "','" + data[2] + "','" +
									        data[3] + "','" + data[4] + "','" + data[5] + "')");
									//for setting the array of JTextField & JPasswordField to null
									clearTextField();
									Log log = new Log("\n"+ "Add Member:"+data[0] + "," + data[1] + "," + data[2] + "," +
									        data[3] + "," + data[4] + "," + data[5]);
									JOptionPane.showMessageDialog(null, "数据操作成功！", "信息", JOptionPane.YES_OPTION);
								}
								else
									JOptionPane.showMessageDialog(null, "用户已存在！", "出错", JOptionPane.ERROR_MESSAGE);
							}
						};
						runner.start();
					}
					//if the password is wrong
					else
						JOptionPane.showMessageDialog(null, "密码输入错误！", "出错", JOptionPane.ERROR_MESSAGE);
				}
				//if there is a missing data, then display Message Dialog
				else
					JOptionPane.showMessageDialog(null, "请将信息填写完整", "警告", JOptionPane.WARNING_MESSAGE);
			}
		});
		//for adding the action listener for the button to dispose the frame
		OKButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent ae) {
				dispose();
			}
		});
		//for setting the visible to true
		setVisible(true);
		//show the internal frame
		pack();
	}
}