xuesheng.java

这是自己做的图书馆信息管理系统

package infomanagement;

/**
 * <p>Title: </p>
 *
 * <p>Description: </p>
 *
 * <p>Copyright: Copyright (c) 2003</p>
 *
 * <p>Company: </p>
 *
 * @author not attributable
 * @version 1.0
 */
import java.awt.*;
import javax.swing.*;
import com.borland.jbcl.layout.*;
import com.borland.dbswing.*;
import com.borland.dx.sql.dataset.*;
import com.borland.dx.dataset.*;
import java.awt.event.*;
import java.awt.Font;
import java.awt.BorderLayout;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2003</p>
 * <p>Company: </p>
 * @author unascribed
 * @version 1.0
 */
public class xuesheng  extends JDialog {
  private JPanel jPanel1 = new JPanel();
  private XYLayout xYLayout1 = new XYLayout();
  private JLabel jLabel1 = new JLabel();
  private JLabel jLabel4 = new JLabel();
  private QueryDataSet queryDataSet1 = new QueryDataSet();
  private Database database1 = new Database();
  private QueryDataSet queryDataSet2 = new QueryDataSet();
  private Column column1 = new Column();
  JLabel jLabel2 = new JLabel();
  JLabel jLabel3 = new JLabel();
  JTextField jTextField1 = new JTextField();
  JLabel jLabel5 = new JLabel();
  JTextField jTextField2 = new JTextField();
  JButton jButton1 = new JButton();
  JLabel jLabel6 ;
  public xuesheng (Frame frame, String title, boolean modal) {
    super(frame, title, modal);
    try {
      jbInit();
      pack();
    }
    catch(Exception ex) {
      ex.printStackTrace();
    }
  }

  public xuesheng () {
    this(null, "", false);
  }
  private void jbInit() throws Exception {

    jPanel1.setLayout(xYLayout1);

    //ImageIcon icon=new ImageIcon("D:\\tupian\\海岸·岛屿 (5).jpg");
    ImageIcon img = new ImageIcon("D:\\tupian\\jj.jpg");
    //JLabel background
      jLabel6  = new JLabel(img);
    jPanel1.add(jLabel6, new Integer(Integer.MIN_VALUE));
    jLabel6.setBounds(0, 0, img.getIconWidth(), img.getIconHeight());


    jLabel1.setFont(new java.awt.Font("Dialog", 0, 23));
    jLabel1.setForeground(Color.magenta);
    jLabel1.setBorder(BorderFactory.createEtchedBorder());
    jLabel1.setText("                  学生登陆窗口");
    jLabel4.setBorder(BorderFactory.createEtchedBorder());
    database1.setConnection(new com.borland.dx.sql.dataset.ConnectionDescriptor
                            ("jdbc:odbc:local", "sa", "", false,
                             "sun.jdbc.odbc.JdbcOdbcDriver"));
    column1.setColumnName("NewColumn1");
    column1.setDataType(com.borland.dx.dataset.Variant.STRING);
    column1.setPreferredOrdinal(0);
    column1.setServerColumnName("NewColumn1");
    column1.setSqlType(0);
    jLabel2.setFont(new java.awt.Font("宋体", Font.PLAIN, 20));
    jLabel2.setForeground(Color.red);
    jLabel2.setText("请输入您的姓名和学号");
    jLabel3.setFont(new java.awt.Font("宋体", Font.PLAIN, 20));
    jLabel3.setForeground(Color.magenta);
    jLabel3.setText("姓名");
    jLabel5.setFont(new java.awt.Font("宋体", Font.PLAIN, 20));
    jLabel5.setForeground(Color.magenta);
    jLabel5.setText("学号");
    jButton1.setText("登陆");

    jButton1.addMouseListener(new java.awt.event.MouseAdapter()
    {
      //判断输入是否正确，是就进入，否就弹出一个对话框提示错误
      public void mouseClicked(MouseEvent e)
      {
        abClicked(e);
      }



    }

    );
    jLabel6.setText("");

    this.getContentPane().add(jPanel1, BorderLayout.CENTER);
    jPanel1.add(jLabel1, new XYConstraints(0, 1, 399, 53));
    jPanel1.add(jLabel2, new XYConstraints(81, 73, -1, -1));
    jPanel1.add(jLabel3, new XYConstraints(34, 119, -1, -1));
    jPanel1.add(jTextField1, new XYConstraints(85, 119, 76, -1));
    jPanel1.add(jTextField2, new XYConstraints(86, 158, 78, -1));
    jPanel1.add(jLabel5, new XYConstraints(35, 156, -1, -1));
    jPanel1.add(jLabel4, new XYConstraints(2, 96, 397, 202));
    jPanel1.add(jButton1, new XYConstraints(69, 224, -1, -1));
    jPanel1.add(jLabel6, new XYConstraints(193, 139, 194, 145));
  }
  void abClicked(MouseEvent e)
  {
      String a=jTextField1.getText();
      String b=jTextField2.getText();
      dabaco bb=new dabaco();
      String gg="";
      String hh="";
      boolean mk=false;


      try{

        String query = "select 姓名,学号 from student ";
        ResultSet rs = bb.stmt.executeQuery(query);
        ResultSetMetaData rsmd = rs.getMetaData();
        //System.out.println(rs.getString(1));


        while (rs.next()) {
           gg=rs.getString(1);
           hh=rs.getString(2);
           //System.out.println(gg);
           if(mk==true)
           {

           }
           else if(gg.equals(a)&&hh.equals(b)&&mk==false)
           {
             mk=true;
           }
           else
           {

           }






      }
}
        catch(SQLException ex)
        {

      }


      if(mk==true)
      {
        xuesheng1 dlg=new xuesheng1();
        Dimension dlgSize = dlg.getPreferredSize();
        Dimension frmSize = getSize();
        Point loc = getLocation();
        dlg.setLocation((frmSize.width - dlgSize.width) / 2 +
                     loc.x, (frmSize.height - dlgSize.height) / 2 + loc.y);
        dlg.setModal(true);
        dlg.pack();

        dlg.setVisible(true);
        //建一个表用来记录登陆的学生



      }
      else{
        String st="           输入错误，请重新输入";
       cheng dlg = new cheng(st);
       Dimension dlgSize = dlg.getPreferredSize();
       Dimension frmSize = getSize();
       Point loc = getLocation();
       dlg.setLocation( (frmSize.width - dlgSize.width) / 2 +
                       loc.x, (frmSize.height - dlgSize.height) / 2 + loc.y);
       dlg.setModal(true);
       dlg.pack();

       dlg.setVisible(true);

      }








  }
  void cancel(){
    dispose() ;
  }



}