ljb_mod.java

这是一个图书和学生信息的管理系统,它可以在数据库里面增加,修改,删除数据来管理图书和学生信息

package LJB;
/**
 */
import com.zdsoft.gui.*;
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import com.zdsoft.datacenter.ASDatacenter;
public class LJB_mod extends ASDialog{
  BorderLayout borderLayout1 = new BorderLayout();
  JPanel jPanel1 = new JPanel();
  LJB_show t1;
  JPanel jPanel2 = new JPanel();
  JPanel jPanel3 = new JPanel();
  JLabel jLabel1 = new JLabel();
  JButton jButton1 = new JButton();
  JButton jButton2 = new JButton();
  GridBagLayout gridBagLayout1 = new GridBagLayout();
  JLabel jLabel2 = new JLabel();
  JTextField class_id = new JTextField();
  JLabel jLabel3 = new JLabel();
  JTextField class_name = new JTextField();
  JLabel jLabel4 = new JLabel();
  JTextField class_teacher = new JTextField();
  int row;
  public LJB_mod(LJB_show s) {
    t1 = s;
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  private void jbInit() throws Exception {
    this.setSize(new Dimension(250, 180));
    this.getContentPane().setLayout(borderLayout1);
    jLabel1.setFont(new java.awt.Font("Serif", 0, 15));
    jLabel1.setForeground(Color.magenta);
    jLabel1.setText("修改信息");
    jButton1.setFont(new java.awt.Font("Serif", 0, 12));
    jButton1.setText("取消");
    jButton1.addActionListener(new LJB_mod_jButton1_actionAdapter(this));
    jButton2.setFont(new java.awt.Font("Serif", 0, 12));
    jButton2.setText("确定");
    jButton2.addActionListener(new LJB_mod_jButton2_actionAdapter(this));
    jPanel1.setLayout(gridBagLayout1);
    jLabel2.setFont(new java.awt.Font("Serif", 0, 12));
    jLabel2.setMaximumSize(new Dimension(50, 18));
    jLabel2.setMinimumSize(new Dimension(50, 18));
    jLabel2.setPreferredSize(new Dimension(50, 18));
    jLabel2.setHorizontalAlignment(SwingConstants.CENTER);
    jLabel2.setText("班级号码");
    class_id.setMinimumSize(new Dimension(100, 25));
    class_id.setPreferredSize(new Dimension(100, 25));
    class_id.setText("");
    jLabel3.setFont(new java.awt.Font("Serif", 0, 12));
    jLabel3.setMaximumSize(new Dimension(50, 18));
    jLabel3.setMinimumSize(new Dimension(50, 18));
    jLabel3.setPreferredSize(new Dimension(50, 18));
    jLabel3.setHorizontalAlignment(SwingConstants.CENTER);
    jLabel3.setText("班级名称");
    class_name.setMinimumSize(new Dimension(100, 25));
    class_name.setPreferredSize(new Dimension(100, 25));
    class_name.setText("");
    jLabel4.setFont(new java.awt.Font("Serif", 0, 12));
    jLabel4.setMaximumSize(new Dimension(50, 18));
    jLabel4.setMinimumSize(new Dimension(50, 18));
    jLabel4.setPreferredSize(new Dimension(50, 18));
    jLabel4.setHorizontalAlignment(SwingConstants.CENTER);
    jLabel4.setText("班主任");
    class_teacher.setMinimumSize(new Dimension(100, 25));
    class_teacher.setPreferredSize(new Dimension(100, 25));
    class_teacher.setSelectionStart(11);
    class_teacher.setText("");
    this.getContentPane().add(jPanel1, BorderLayout.CENTER);
    jPanel1.add(jLabel2,   new GridBagConstraints(0, 0, 1, 1, 0.0, 0.0
            ,GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0, 0, 0, 0), 0, 0));
    jPanel1.add(class_id,   new GridBagConstraints(1, 0, 1, 1, 0.0, 0.0
            ,GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0, 0, 0, 0), 0, 0));
    jPanel1.add(jLabel3,  new GridBagConstraints(0, 1, 1, 1, 0.0, 0.0
            ,GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0, 0, 0, 0), 0, 0));
    jPanel1.add(class_name,  new GridBagConstraints(1, 1, 1, 1, 0.0, 0.0
            ,GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0, 0, 0, 0), 0, 0));
    jPanel1.add(jLabel4, new GridBagConstraints(0, 2, 1, 1, 0.0, 0.0
            ,GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0, 0, 0, 0), 0, 0));
    jPanel1.add(class_teacher, new GridBagConstraints(1, 2, 1, 1, 0.0, 0.0
            ,GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0, 0, 0, 0), 0, 0));
    this.getContentPane().add(jPanel2, BorderLayout.SOUTH);
    jPanel2.add(jButton2, null);
    jPanel2.add(jButton1, null);
    this.getContentPane().add(jPanel3, BorderLayout.NORTH);
    jPanel3.add(jLabel1, null);
    this.setWindowCenter();
    row = t1.jTable1.getSelectedRow();
    class_id.setText(t1.ds.getItemInteger(row,"bj_id")+"");
    class_name.setText(t1.ds.getItemString(row,"bj_name"));
    class_teacher.setText(t1.ds.getItemString(row,"bj_teacher"));
  }
  void jButton2_actionPerformed(ActionEvent e) {
    ASDatacenter dc = new ASDatacenter();
    dc.connect();
    String sql = "update banji_dm set bj_name = '"+class_name.getText()+
        "',bj_teacher = '"+class_teacher.getText()+"' where bj_id = "+class_id.getText();
    String[] msg = dc.update(sql);
    if(msg[0].equals("true")){
      try {
        t1.ds.setObjectAt(row,"bj_id",new Integer(class_id.getText()));
        t1.ds.setObjectAt(row,"bj_name",class_name.getText());
        t1.ds.setObjectAt(row,"bj_teacher",class_teacher.getText());
      }
      catch (Exception ex) {
      }
      t1.jTable1.ASTableRepant();
    }
    else{
    }
    dc.disconnect();
    this.dispose();
  }
  void jButton1_actionPerformed(ActionEvent e) {
    this.dispose();
  }
}
class LJB_mod_jButton2_actionAdapter implements java.awt.event.ActionListener {
  LJB_mod adaptee;
  LJB_mod_jButton2_actionAdapter(LJB_mod adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jButton2_actionPerformed(e);
  }
}
class LJB_mod_jButton1_actionAdapter implements java.awt.event.ActionListener {
  LJB_mod adaptee;
  LJB_mod_jButton1_actionAdapter(LJB_mod adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jButton1_actionPerformed(e);
  }
}