sznjkc.java

用Java开发的学生信息管理系统

package studentsystem;

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

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2006</p>
 * <p>Company: </p>
 * @download by http://www.codefans.net
 * @author not attributable
 * @version 1.0
 */

public class sznjkc
    extends JFrame {
  JLabel jLabel1 = new JLabel();
  JComboBox nj = new JComboBox();
  JLabel jLabel2 = new JLabel();

  JButton add = new JButton();
  JButton remove = new JButton();
  JButton cancel = new JButton();
  JButton szkc = new JButton();
  JButton ok = new JButton();
  Statement ps,grade;
  ResultSet rs,ss,grades;
  Connection con;
  String url;
  List allcourse = new List();
  List sz = new List();
   Vector v = new Vector();
   int buttonnumber;

  public sznjkc() {
    try {
      jbInit();
    }
    catch (Exception e) {
      e.printStackTrace();
    }
    try{
      Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
        Connection con = DriverManager.getConnection(
            "jdbc:odbc:lee",
            "sa", "123");

        ps = con.createStatement(ResultSet.
                                 TYPE_SCROLL_INSENSITIVE,
                                 ResultSet.CONCUR_READ_ONLY);
        grade= con.createStatement(ResultSet.
                                TYPE_SCROLL_INSENSITIVE,
                                ResultSet.CONCUR_READ_ONLY);

}
      catch (Exception err) {
     String error = err.getMessage();
     JOptionPane.showMessageDialog(null, "连接数据库错误!");
      }
      try{
        grades= grade.executeQuery("select * from class");
       while (grades.next()) {

         nj.addItem(grades.getString("grade"));

       }

      }
      catch (Exception e) {
       e.printStackTrace();
     }

  }

  public static void main(String[] args) {
    sznjkc sznjkc = new sznjkc();
  }

  private void jbInit() throws Exception {
    jLabel1.setFont(new java.awt.Font("Dialog", 0, 15));
    jLabel1.setText("选择年级");
    jLabel1.setBounds(new Rectangle(112, 16, 74, 33));
    this.getContentPane().setLayout(null);
    this.setTitle("设置年级课程");
    nj.setBounds(new Rectangle(205, 19, 104, 28));
    jLabel2.setFont(new java.awt.Font("Dialog", 0, 15));
    jLabel2.setText("所有课程");
    jLabel2.setBounds(new Rectangle(25, 48, 74, 34));

    add.setBounds(new Rectangle(198, 120, 75, 34));
    add.setFont(new java.awt.Font("Dialog", 0, 15));
    add.setText("添  加");
    add.addActionListener(new sznjkc_add_actionAdapter(this));
    remove.setBounds(new Rectangle(196, 189, 75, 32));
    remove.setFont(new java.awt.Font("Dialog", 0, 15));
    remove.setText("移  除");
    remove.addActionListener(new sznjkc_remove_actionAdapter(this));
    cancel.setBounds(new Rectangle(292, 317, 79, 32));
    cancel.setFont(new java.awt.Font("Dialog", 0, 15));
    cancel.setText("退  出");
    cancel.addActionListener(new sznjkc_cancel_actionAdapter(this));
    szkc.setText("显示所有课程");
    szkc.addActionListener(new sznjkc_szkc_actionAdapter(this));
    szkc.setBounds(new Rectangle(36, 317, 134, 32));
    szkc.setFont(new java.awt.Font("Dialog", 0, 15));
    ok.setText("确   定");
    ok.addActionListener(new sznjkc_ok_actionAdapter(this));
    ok.setFont(new java.awt.Font("Dialog", 0, 15));
    ok.setBounds(new Rectangle(191, 317, 79, 32));
    allcourse.setBounds(new Rectangle(19, 89, 169, 209));
    sz.setBounds(new Rectangle(279, 90, 180, 209));
    //  int i=2003;

    this.getContentPane().add(cancel, null);
    this.getContentPane().add(szkc, null);
    this.getContentPane().add(ok, null);
    this.getContentPane().add(jLabel2, null);
    this.getContentPane().add(allcourse, null);
    this.getContentPane().add(sz, null);
    this.getContentPane().add(add, null);
    this.getContentPane().add(remove, null);
    this.getContentPane().add(nj, null);
    this.getContentPane().add(jLabel1, null);
        this.setBounds(200, 200, 500, 400);
    this.setVisible(true);



  }

  void szkc_actionPerformed(ActionEvent e) {
    try {

      rs = ps.executeQuery("select * from course");
      while (rs.next()) {

        allcourse.add(rs.getString("course_Name"));

      }
    }
    catch (Exception err) {
      String error = err.getMessage();
      JOptionPane.showMessageDialog(null, "没有数据!");
    }

  }

  void ok_actionPerformed(ActionEvent e) {
//    System.out.print(sz.getItems().toString());
    JOptionPane.showConfirmDialog(null,
                                      "确定设置？", "设置年级课程！", JOptionPane.YES_NO_OPTION);
      try {
      //  int g=v.get();

      for(int i=0;i<buttonnumber;i++){

            ps.executeUpdate("Insert Into gradecourse Values('" +
                               nj.getSelectedItem().toString()+
                               "','" + v.get(i) +"')");
            }
            Log log=new Log();
                  log.addLog("\r\r","添加"+nj.getSelectedItem().toString()+"课程成功！");
                 log.closeStream();

            JOptionPane.showMessageDialog(null, "添加所选课程成功");
           this.dispose();
          }
            catch (SQLException ex) {
              String error = ex.getMessage();
              JOptionPane.showMessageDialog(null, error);
            //  sqle.printStackTrace();
            }


  }

  void cancel_actionPerformed(ActionEvent e) {
    this.dispose();
  }

  void add_actionPerformed(ActionEvent e) {
   try{
     sz.add(allcourse.getSelectedItem());
     v.addElement(allcourse.getSelectedItem().trim());
    allcourse.remove(allcourse.getSelectedItem());
   buttonnumber++;
  }
  catch (Exception err) {
     String error = err.getMessage();
     JOptionPane.showMessageDialog(null, "没有选择任何课程!");

 }

  }
  void remove_actionPerformed(ActionEvent e) {
try{ allcourse.add(sz.getSelectedItem());
    sz.remove(sz.getSelectedItem());
    v.remove(sz.getSelectedItem());
    buttonnumber--;
}
  catch (Exception err) {
     String error = err.getMessage();
     JOptionPane.showMessageDialog(null, "没有选择任何课程!");

 }

  }
}

class sznjkc_szkc_actionAdapter
    implements java.awt.event.ActionListener {
  sznjkc adaptee;

  sznjkc_szkc_actionAdapter(sznjkc adaptee) {
    this.adaptee = adaptee;
  }

  public void actionPerformed(ActionEvent e) {
    adaptee.szkc_actionPerformed(e);
  }
}

class sznjkc_ok_actionAdapter
    implements java.awt.event.ActionListener {
  sznjkc adaptee;

  sznjkc_ok_actionAdapter(sznjkc adaptee) {
    this.adaptee = adaptee;
  }

  public void actionPerformed(ActionEvent e) {
    adaptee.ok_actionPerformed(e);
  }
}

class sznjkc_cancel_actionAdapter
    implements java.awt.event.ActionListener {
  sznjkc adaptee;

  sznjkc_cancel_actionAdapter(sznjkc adaptee) {
    this.adaptee = adaptee;
  }

  public void actionPerformed(ActionEvent e) {
    adaptee.cancel_actionPerformed(e);
  }
}

class sznjkc_add_actionAdapter
    implements java.awt.event.ActionListener {
  sznjkc adaptee;

  sznjkc_add_actionAdapter(sznjkc adaptee) {
    this.adaptee = adaptee;
  }

  public void actionPerformed(ActionEvent e) {
    adaptee.add_actionPerformed(e);
  }
}

class sznjkc_remove_actionAdapter
    implements java.awt.event.ActionListener {
  sznjkc adaptee;

  sznjkc_remove_actionAdapter(sznjkc adaptee) {
    this.adaptee = adaptee;
  }

  public void actionPerformed(ActionEvent e) {
    adaptee.remove_actionPerformed(e);
  }
}