d_delbook.java~1~

图书管理系统

/*
 * D_delbook.java
 *
 * Created on 2007年6月22日, 上午11:21
 */

package 图书管理系统;
import javax.swing.*;
import java.sql.*;

public class D_delbook extends javax.swing.JFrame {
    
    /** Creates new form D_delbook */
    public D_delbook() {
        initComponents();
        con=connect.getcon();
        stmt=connect.getstmt();
        this.setTitle("图书作废处理");
        this.setBounds(300,250,250,200);
        this.setDefaultCloseOperation(DISPOSE_ON_CLOSE);
    }
    
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc=" 生成的代码 ">//GEN-BEGIN:initComponents
    private void initComponents() {
        jLabel1 = new javax.swing.JLabel();
        T_dbookID = new javax.swing.JTextField();
        B_bdel = new javax.swing.JButton();
        B_bcancel = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        jLabel1.setText("\u8bf7\u8f93\u5165\u60a8\u6240\u8981\u5220\u9664\u7684\u56fe\u4e66\u53f7:");

        B_bdel.setText("\u5220\u9664");
        B_bdel.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                B_bdelActionPerformed(evt);
            }
        });

        B_bcancel.setText("\u53d6\u6d88");
        B_bcancel.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                B_bcancelActionPerformed(evt);
            }
        });

        org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                    .add(layout.createSequentialGroup()
                        .add(23, 23, 23)
                        .add(jLabel1))
                    .add(layout.createSequentialGroup()
                        .add(50, 50, 50)
                        .add(B_bdel)
                        .add(58, 58, 58)
                        .add(B_bcancel))
                    .add(layout.createSequentialGroup()
                        .add(78, 78, 78)
                        .add(T_dbookID, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 109, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)))
                .addContainerGap(66, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .addContainerGap()
                .add(jLabel1)
                .add(22, 22, 22)
                .add(T_dbookID, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED, 41, Short.MAX_VALUE)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(B_bdel)
                    .add(B_bcancel))
                .add(24, 24, 24))
        );
        pack();
    }// </editor-fold>//GEN-END:initComponents

    private void B_bcancelActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_B_bcancelActionPerformed
// TODO 将在此处添加您的处理代码：
        this.setVisible(false);
    }//GEN-LAST:event_B_bcancelActionPerformed

    private void B_bdelActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_B_bdelActionPerformed
// TODO 将在此处添加您的处理代码：
        try{
            if(T_dbookID.getText().trim().equals(""))
            {
                JOptionPane.showMessageDialog(null,"图书号输入不能为空");
                return;
            }
        
        if(JOptionPane.showConfirmDialog(null,"删除该图书将删除相应的借书记录,你确认要删除该图书吗?","温馨提示:",0)==0)
        {
            PreparedStatement sql=con.prepareStatement("delete  from 借阅 where 书号=?");
            sql.setString(1,T_dbookID.getText().trim());
            sql.executeUpdate();
            sql=con.prepareStatement("delete  from 图书 where 书号=?");
            sql.setString(1,T_dbookID.getText().trim());
            sql.executeUpdate();
        JOptionPane.showMessageDialog(null,"图书信息删除成功");
        this.setVisible(false);
        }
        
    }                                     
     catch(Exception ee)
         {
       JOptionPane.showMessageDialog(null,"数据库访问失败！");
 ee.printStackTrace();
    }
    }//GEN-LAST:event_B_bdelActionPerformed
    
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new D_delbook().setVisible(true);
            }
        });
    }
    
    // 变量声明 - 不进行修改//GEN-BEGIN:variables
    private javax.swing.JButton B_bcancel;
    private javax.swing.JButton B_bdel;
    private javax.swing.JTextField T_dbookID;
    private javax.swing.JLabel jLabel1;
    // 变量声明结束//GEN-END:variables
    private Connection con;
    private Statement stmt;
}