基于java的图书馆理系统的学生界面查询功能实现
5页1、package library;import java.awt.BorderLayout;import java.awt.Font;import java.awt.GridLayout;import java.awt.Panel;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;import java.util.Vector;import javax.swing.JButton;import javax.swing.JComboBox;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JOptionPane;import javax.swing.JPanel;import javax.swing.JScrollPane;import javax.
2、swing.JTable;import javax.swing.JTextField;import javax.swing.JToolBar;import javax.swing.table.DefaultTableModel;public class query extends JFrame implements ActionListener private static final int AUTO_RESIZE_OFF = 0;private static final boolean JComboBox = false;private JTextField idfield;private JTextField namefield;private JTextField catefield;private JTextField authorfield;private JButton querybutton;private DbTableModel tableModel;private ResultSet rs;private String idtext;private String
3、nametext;private String authortext;private JComboBox box;private String string;private Object selectedItem;public query() init();private void init() setDefaultCloseOperation(EXIT_ON_CLOSE);setBounds(200, 200, 470, 400);setTitle(图书信息查询);JPanel panel = new JPanel();add(panel, BorderLayout.NORTH);panel.setLayout(new BorderLayout();JLabel label = new JLabel(高级搜索, JLabel.CENTER);label.setFont(new Font(宋体, Font.BOLD, 12);panel.add(label, BorderLayout.WEST);Panel panel2 = new Panel();panel.add(panel2,
4、BorderLayout.CENTER);panel2.setLayout(new GridLayout(4, 2);JLabel idlabel = new JLabel(编号, JLabel.CENTER);panel2.add(idlabel);idfield = new JTextField();panel2.add(idfield);JLabel labelauthor = new JLabel(作者, JLabel.CENTER);panel2.add(labelauthor);authorfield = new JTextField();panel2.add(authorfield);JLabel namelabel = new JLabel(书名, JLabel.CENTER);panel2.add(namelabel);namefield = new JTextField();panel2.add(namefield);JLabel catelabel = new JLabel(分类, JLabel.CENTER);panel2.add(catelabel);box
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