项目重启

2024-06-26 23:23:25 +08:00
commit 8e6dfb275b
44 changed files with 1824 additions and 0 deletions
@@ -0,0 +1,116 @@
+package com.msksbr.MainFrm.MenuItemDiaog;
+
+import com.msksbr.LoginFrm.ScreenSize;
+import com.msksbr.SQL.Connector;
+
+import javax.swing.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.KeyAdapter;
+import java.awt.event.KeyEvent;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
+public class SearchDIalog extends JDialog {
+    public JLabel messageLabel;
+    protected int idInt;
+    private JPanel contentPane;
+    private JButton buttonOK;
+    private JTextField idFIeld;
+    private String table;
+
+    public SearchDIalog(String table) {
+        setContentPane(contentPane);
+        setModal(true);
+        getRootPane().setDefaultButton(buttonOK);
+        if (table.equals("books")) {
+            this.table = "books";
+            this.setTitle("查询图书信息");
+            messageLabel.setText("请输入书号：");
+        } else if (table.equals("students")) {
+            this.table = "students";
+            this.setTitle("查询学生信息");
+            messageLabel.setText("请输入学号：");
+        } else if (table.equals("rents")) {
+            this.table = "rents";
+            this.setTitle("查询借阅信息");
+            messageLabel.setText("请输入书号：");
+        }
+        setListener();
+        pack();
+        setLocation();
+        setVisible(true);
+    }
+
+    private void setListener() {
+        buttonOK.addActionListener(new ActionListener() {
+            public void actionPerformed(ActionEvent e) {
+                onOK();
+            }
+        });
+        idFIeld.addKeyListener(new KeyAdapter() {
+            public void keyPressed(KeyEvent e) {
+                if (e.getKeyCode() == KeyEvent.VK_ENTER) {
+                    onOK();
+                }
+            }
+        });
+    }
+
+    private void setLocation() {
+        setLocation(new ScreenSize().width / 2 - getWidth() / 2, new ScreenSize().height / 2 - getHeight() / 2);
+    }
+
+    private void onOK() {
+        ResultSet rs = SQLExe();
+        String message = "";
+        try {
+            if (rs != null && rs.next()) {
+                String title = "";
+                if (table.equals("books")) {
+                    message = "书名：\t" + rs.getString("book_name") + "\n类别：\t" + rs.getString("book_type") + "\n书号：\t" + rs.getInt("book_id") + "\nISBN：\t" + rs.getString("ISBN");
+                    title = "图书信息";
+                } else if (table.equals("students")) {
+                    message = "学生姓名：\t" + rs.getString("student_name") + "\n学号：\t" + rs.getInt("student_id") + "\n班级：\t" + rs.getString("student_class") + "\n性别：\t" + rs.getString("student_gender");
+                    title = "学生信息";
+                } else if (table.equals("rents")) {
+                    message = "学生姓名：\t" + rs.getString("student_name") + "\n学号：\t" + rs.getInt("student_id") + "\n班级：\t" + rs.getString("student_class") + "\n性别：\t" + rs.getString("student_gender") + "\n书名：\t" + rs.getString("book_name") + "\n书号：\t" + rs.getInt("book_id") + "\n类别：\t" + rs.getString("book_type") + "\nISBN：\t" + rs.getString("ISBN");
+                    title = "借阅信息";
+                }
+                new showMessae(message, title);
+            } else {
+                JOptionPane.showMessageDialog(this, "未找到", "未找到", JOptionPane.WARNING_MESSAGE);
+            }
+        } catch (SQLException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    private ResultSet SQLExe() {
+        ResultSet rs = null;
+        try {
+            idInt = Integer.valueOf(idFIeld.getText());
+            Connector connector = new Connector();
+            rs = connector.executeQuery(SQLExeMaker(table));
+        } catch (NumberFormatException e) {
+            JOptionPane.showMessageDialog(this, "请输入一个整数", "错误", JOptionPane.ERROR_MESSAGE);
+        } catch (SQLException e) {
+            throw new RuntimeException(e);
+        } catch (ClassNotFoundException e) {
+            throw new RuntimeException(e);
+        }
+        return rs;
+    }
+
+    private String SQLExeMaker(String table) {
+        if (table.equals("books")) {
+            return "SELECT * FROM `books` WHERE `book_id` = " + idInt + ";";
+        } else if (table.equals("students")) {
+            return "SELECT * FROM `students` WHERE `student_id` = " + idInt + ";";
+        } else if (table.equals("rents")) {
+            return "SELECT * FROM `rents` WHERE `book_id` = " + idInt + ";";
+        } else {
+            return null;
+        }
+    }
+}