searchstudent.java

管理系统实现的源代码,

/*
 * SearchStudent.java
 *
 * Created on 2008年12月7日, 上午12:03
 */
package 学生成绩管理系统;

import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Vector;
import javax.swing.JOptionPane;

/**
 *
 * @author  Administrator
 */
public class SearchStudent extends javax.swing.JDialog {

    private ResultSet rs;
    private ResultSet rs0;

    /** Creates new form SearchStudent */
    public SearchStudent(java.awt.Frame parent, boolean modal) {
        super(parent, modal);
        initComponents();
    }

    public SearchStudent() {
        initComponents();
    }

    /** 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.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        jScrollPane1 = new javax.swing.JScrollPane();
        Table = new javax.swing.JTable();
        num = new javax.swing.JTextField();
        jLabel1 = new javax.swing.JLabel();
        jButton1 = new javax.swing.JButton();
        num0 = new javax.swing.JTextField();
        jLabel2 = new javax.swing.JLabel();

        setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
        setTitle("查找学生信息");

        Table.setBorder(javax.swing.BorderFactory.createEtchedBorder());
        Table.setModel(new javax.swing.table.DefaultTableModel(
            new Object [][] {
                {"", "", "", "", "", "", "100"},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null}
            },
            new String [] {
                "学号", "姓名", "班级", "id", "语文", "数学", "英语"
            }
        ) {
            Class[] types = new Class [] {
                java.lang.String.class, java.lang.String.class, java.lang.String.class, java.lang.String.class, java.lang.String.class, java.lang.String.class, java.lang.String.class
            };

            public Class getColumnClass(int columnIndex) {
                return types [columnIndex];
            }
        });
        jScrollPane1.setViewportView(Table);

        jLabel1.setText("学号");

        jButton1.setText("查找");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        jLabel2.setText("id");

        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(81, 81, 81)
                        .add(jLabel1)
                        .addPreferredGap(org.jdesktop.layout.LayoutStyle.UNRELATED)
                        .add(num, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 82, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                        .addPreferredGap(org.jdesktop.layout.LayoutStyle.UNRELATED)
                        .add(jLabel2)
                        .addPreferredGap(org.jdesktop.layout.LayoutStyle.UNRELATED)
                        .add(num0, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 81, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                        .addPreferredGap(org.jdesktop.layout.LayoutStyle.UNRELATED)
                        .add(jButton1))
                    .add(layout.createSequentialGroup()
                        .add(24, 24, 24)
                        .add(jScrollPane1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 487, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)))
                .addContainerGap(29, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .add(23, 23, 23)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(num, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                    .add(jLabel1)
                    .add(jLabel2)
                    .add(jButton1)
                    .add(num0, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                .add(18, 18, 18)
                .add(jScrollPane1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 88, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(148, Short.MAX_VALUE))
        );

        pack();
    }// </editor-fold>//GEN-END:initComponents

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed
// TODO add your handling code here:
    DBM db = new DBM();
    String sql0 = "select * from student where 学号=" + Integer.parseInt(num.getText());
    rs = db.getResult(sql0);
    DBM db0 = new DBM();
    String sql1 = "select * from  course where id=" + Integer.parseInt(num0.getText());
    rs0 = db0.getResult(sql1);

    try {
        if (!rs.next()) {
            JOptionPane.showMessageDialog(null, "无此学号记录", "警告",
                    JOptionPane.WARNING_MESSAGE);
        }
        if (!rs0.next()) {
            JOptionPane.showMessageDialog(null, "无此学号记录", "警告",
                    JOptionPane.WARNING_MESSAGE);
        }

        for (int i = 2; i <= 5; i++) {
            Table.setValueAt(rs.getString(i), 0, i - 2);
        }

        for (int i = 3; i <= 5; i++) {
            Table.setValueAt(rs0.getString(i), 0, i + 1);
        }
        db.close();
        db0.close();
    }//end try
    catch (SQLException exc) {
        exc.printStackTrace();
        System.exit(1);
    }

}//GEN-LAST:event_jButton1ActionPerformed

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {

            public void run() {
                SearchStudent dialog = new SearchStudent(new javax.swing.JFrame(), true);
                dialog.addWindowListener(new java.awt.event.WindowAdapter() {

                    public void windowClosing(java.awt.event.WindowEvent e) {
                        System.exit(0);
                    }
                });
                dialog.setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify//GEN-BEGIN:variables
    public static javax.swing.JTable Table;
    private javax.swing.JButton jButton1;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JScrollPane jScrollPane1;
    public static javax.swing.JTextField num;
    private javax.swing.JTextField num0;
    // End of variables declaration//GEN-END:variables
}