ask.java

简单的实现学生信息管理

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/*
 * Ask.java
 *
 * Created on 2009-4-16, 22:35:38
 */
package exam6;

import java.awt.HeadlessException;
import java.sql.*;
import java.util.Vector;
import javax.swing.JOptionPane;

/**
 *
 * @author Administrator
 */
public class Ask extends javax.swing.JFrame {

    /** Creates new form Ask */
    public Ask() {
        initComponents();
        this.setLocationRelativeTo(this);

    }

    /** 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() {

        jLabel1 = new javax.swing.JLabel();
        jTextField1 = new javax.swing.JTextField();
        jButton1 = new javax.swing.JButton();
        jButton2 = new javax.swing.JButton();
        jScrollPane1 = new javax.swing.JScrollPane();
        jTextArea1 = new javax.swing.JTextArea();

        setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);

        jLabel1.setText("学号");

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

        jButton2.setText("取消");
        jButton2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton2ActionPerformed(evt);
            }
        });

        jTextArea1.setColumns(20);
        jTextArea1.setRows(5);
        jScrollPane1.setViewportView(jTextArea1);

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addGap(60, 60, 60)
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addGroup(layout.createSequentialGroup()
                                .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 32, javax.swing.GroupLayout.PREFERRED_SIZE)
                                .addGap(18, 18, 18)
                                .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 153, javax.swing.GroupLayout.PREFERRED_SIZE))
                            .addGroup(layout.createSequentialGroup()
                                .addComponent(jButton1)
                                .addGap(27, 27, 27)
                                .addComponent(jButton2))))
                    .addGroup(layout.createSequentialGroup()
                        .addContainerGap()
                        .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 454, Short.MAX_VALUE)))
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                .addGap(24, 24, 24)
                .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 186, Short.MAX_VALUE)
                .addGap(18, 18, 18)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 17, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(18, 18, 18)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jButton2)
                    .addComponent(jButton1))
                .addContainerGap())
        );

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

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed
        try {
            //  ((DefaultListModel)jList1.getModel()).removeAllElements();
            String str, sql = null, url, user, password, jb1, jb2, aline = null;
            Vector data = null;
            Connection conn;
            Statement stmt;
            ResultSet rst = null;
            str = "sun.jdbc.odbc.JdbcOdbcDriver";
            Class.forName(str);
            conn = DriverManager.getConnection("jdbc:odbc:student", "Administer", "");
            stmt = (Statement) conn.createStatement();

            try {
                sql = "select * from 学生信息 where 学号='" + Integer.parseInt(jTextField1.getText()) + "'";
            } catch (NumberFormatException numberFormatException) {
                JOptionPane.showMessageDialog(this, "请输入8位数字");
            }


            try {
                rst = stmt.executeQuery(sql);
                if (!rst.next()) {
                    JOptionPane.showMessageDialog(this, "没有这条记录");
                } else {
                    jTextArea1.setText("学号："+rst.getString("学号")+"\n");
                    jTextArea1.append("姓名："+rst.getString("姓名")+"\n");
                    jTextArea1.append("性别："+rst.getString("性别")+"\n");
                    jTextArea1.append("党否："+rst.getString("党否")+"\n");
                    jTextArea1.append("学院："+rst.getString("学院")+"\n");
                    jTextArea1.append("简历："+rst.getString("简历")+"\n");
                    jTextArea1.append("年龄："+rst.getString("年龄")+"\n");
                    }
            } catch (SQLException sQLException) {
            } catch (HeadlessException headlessException) {
            }catch(NullPointerException s){}
            try {
                rst.close();
            } catch (SQLException sQLException) {

            }catch (NullPointerException nu) {
                
            }

            stmt.close();
            conn.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }//GEN-LAST:event_jButton1ActionPerformed

    private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton2ActionPerformed
        jTextField1.setText("");
        jTextArea1.setText("");
    }//GEN-LAST:event_jButton2ActionPerformed

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
    }

    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JTextArea jTextArea1;
    private javax.swing.JTextField jTextField1;
    // End of variables declaration//GEN-END:variables
}