studentdialog.java~8~

基于JB的网络数据库系统开发

package studentmanage;

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.sql.*;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2005</p>
 * <p>Company: </p>
 * @author not attributable
 * @version 1.0
 */

public class StudentDialog extends JDialog {
  Connection con=null;
  Statement stmt=null;
  ResultSet rs=null;
  String  studentid="";
  String name="";
  String sex="";

  JPanel panel1 = new JPanel();
  JLabel jLabel1 = new JLabel();
  JTextField jTextField1 = new JTextField();
  JButton jButton1 = new JButton();
  JButton jButton2 = new JButton();
  MainFrame f;

  public StudentDialog(MainFrame frame, String title, boolean modal) {
    super(frame, title, modal);
    try {
      this.f=frame;
      jbInit();
      pack();
    }
    catch(Exception ex) {
      ex.printStackTrace();
    }
  }

  public StudentDialog() {
    this(null, "", false);
  }
  private void jbInit() throws Exception {
    panel1.setLayout(null);
    this.getContentPane().setLayout(null);
    panel1.setBounds(new Rectangle(10, 10, 310, 176));
    jLabel1.setFont(new java.awt.Font("Dialog", 0, 16));
    jLabel1.setText("学  号");
    jLabel1.setBounds(new Rectangle(42, 41, 47, 28));
    jTextField1.setFont(new java.awt.Font("Dialog", 0, 16));
    jTextField1.setMinimumSize(new Dimension(6, 22));
    jTextField1.setText("");
    jTextField1.setBounds(new Rectangle(110, 41, 146, 28));
    jButton1.setBounds(new Rectangle(54, 92, 80, 33));
    jButton1.setFont(new java.awt.Font("Dialog", 0, 16));
    jButton1.setText("确定");
    jButton1.addActionListener(new StudentDialog_jButton1_actionAdapter(this));
    jButton2.setText("取消");
    jButton2.setFont(new java.awt.Font("Dialog", 0, 16));
    jButton2.setBounds(new Rectangle(164, 92, 80, 33));
    getContentPane().add(panel1, null);
    panel1.add(jLabel1, null);
    panel1.add(jTextField1, null);
    panel1.add(jButton1, null);
    panel1.add(jButton2, null);
  }

  void jButton1_actionPerformed(ActionEvent e) {
    studentid=jTextField1.getText().trim();
    String sql="select * from studentname where studentid='" +studentid+"'";
    //判断输入是否为空
    if(studentid.equals("")){
      JOptionPane.showMessageDialog(this,"信息输入不全,请完整输入","信息提示",2);
      return;
    }
    DbConnect.loadClass();
    con = DbConnect.makeConnect("127.0.0.1", "StudentScore", "sa", "");
    stmt = DbConnect.makeStatement(con);
    rs = DbConnect.makeResultSet(stmt, sql);
    try {
      if (rs.next()) {
        //存在该学号
        name=rs.getString("name");
        sex=rs.getString("sex");
        f.status=true;
      }
      else
        JOptionPane.showMessageDialog(this, "该学号不存在,请完整输入", "信息提示", 2);
      DbConnect.close(rs);
      DbConnect.close(stmt);
      DbConnect.close(con);
      if (f.status)
        this.dispose();
    }
    catch (SQLException e1) {
      System.out.println("数据库表访问异常");
    }


  }
}

class StudentDialog_jButton1_actionAdapter implements java.awt.event.ActionListener {
  StudentDialog adaptee;

  StudentDialog_jButton1_actionAdapter(StudentDialog adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jButton1_actionPerformed(e);
  }
}