panelfdadm.java~6~

这是一个用jbuilder2005编写的图书管理系统

package bookmanage;

import java.awt.*;
import javax.swing.*;
import java.awt.BorderLayout;
import javax.swing.table.DefaultTableModel;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.*;

/**
 * <p>Title: 图书管理系统</p>
 *
 * <p>Description: PanelFDAdm类是继承JPanel，主要是用来生成一个显示和删除管理员的面板</p>
 *
 * <p>Copyright: Copyright (c) 2006</p>
 *
 * <p>Company: 浙江工业大学信息学院计算机系</p>
 *
 * @author 曾文秋
 * @version 1.0
 */
public class PanelFDAdm
    extends JPanel {
  BorderLayout borderLayout1 = new BorderLayout();
  JPanel jPanel1 = new JPanel();
  JButton jButtonDelete = new JButton();//删除管理员
  JScrollPane jScrollPane1 = new JScrollPane();
  //定义DefaultTableModel模型
  DefaultTableModel model = new DefaultTableModel();
  //定义JTable为DefaultTableModel的实例model模式
  JTable jTableFDAdm = new JTable(model);
  Vector tempvector=new Vector(1,1);

  //定义结果集
  ResultSet rs;
  //定义数据库操作对象
  private DBManager db = new DBManager();
  String strSQL=null;
  JButton jButtonCancel = new JButton();


  public PanelFDAdm() {
    try {
      jbInit();
    }
    catch (Exception exception) {
      exception.printStackTrace();
    }
  }
  /**
   * 初始化面板
   * @throws Exception
   */
  private void jbInit() throws Exception {
    this.setLayout(borderLayout1);
    jButtonDelete.setText("删除管理员");
    jButtonDelete.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jButtonDelete_actionPerformed(e);
      }
    });
    jScrollPane1.setAutoscrolls(true);
    jButtonCancel.setText("关闭窗口");
    jButtonCancel.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jButtonCancel_actionPerformed(e);
      }
    });
    this.add(jPanel1, java.awt.BorderLayout.SOUTH);
    jPanel1.add(jButtonDelete);
    jPanel1.add(jButtonCancel);
    this.add(jScrollPane1, java.awt.BorderLayout.CENTER);
    jScrollPane1.getViewport().add(jTableFDAdm);
    strSQL="select * from administrator where power='管理员'";
    rs = db.getResult(strSQL);
    boolean isexist = false;
    try {
      isexist = rs.first();
    }
    catch (SQLException ex1) {
      JOptionPane.showMessageDialog(this,"ex1.toString() " +ex1.toString() );
    }
    if(!isexist){
      JOptionPane.showMessageDialog(this, "除了自己是超级管理员之外，没有其他一般管理员");
      return;
    }
    for (int n = model.getRowCount() - 1; n >= 0; n--)
      model.removeRow(n);

    try {
      rs.beforeFirst();
      while (rs.next()) {
        tempvector = new Vector(1, 1);
        tempvector.add(rs.getString("id"));
        tempvector.add(rs.getString("password"));
        tempvector.add(rs.getString("name"));
        tempvector.add(rs.getString("power"));
        tempvector.add(rs.getString("worktime"));
        tempvector.add(rs.getString("telephone"));
        model.addRow(tempvector);
        jTableFDAdm.validate();
      }
    }
    catch (SQLException ex) {
      JOptionPane.showMessageDialog(null, "ex.toString() :" + ex.toString());
    }
    db.close();
  }

  public void jButtonDelete_actionPerformed(ActionEvent e) {

  }

  public void jButtonCancel_actionPerformed(ActionEvent e) {
    MainFrame.cardLayout1.show(MainFrame.jPanelBottom,"MainFrame.jPaneBackgroud");
  }
}