students_show.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 学生信息管理系统;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2005</p>
 * <p>Company: </p>
 * @author not attributable
 * @version 1.0
 */
import com.zdsoft.gui.*;
import com.zdsoft.datacenter.ASDatacenter;
import com.zdsoft.datastore.ASDatastore;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class students_show extends ASPanel{
  JPanel jPanel1 = new JPanel();
  JPanel jPanel2 = new JPanel();
  JPanel jPanel3 = new JPanel();
  JLabel jLabel1 = new JLabel();
  JButton jButton1 = new JButton();
  JButton jButton2 = new JButton();
  JButton jButton3 = new JButton();
  JScrollPane jScrollPane1 = new JScrollPane();
  ASTable jTable1;
  ASDatastore ds;
  public students_show() {
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  private void jbInit() throws Exception {
    ASDatacenter dc = new ASDatacenter();
    dc.connect();
    String sql = "select * from students_info";
    ds = dc.retrieve(sql);
    String[] liab = new String[3];
    liab[0] = "学生号码";
    liab[1] = "学生姓名";
    liab[2] = "性别";
    ds.setTitleLable(liab);
    ASTableView tv = new ASTableView(ds);
    jTable1 = new ASTable(tv);
    dc.disconnect();
    jLabel1.setFont(new java.awt.Font("Serif", 1, 20));
    jLabel1.setForeground(Color.red);
    jLabel1.setText("学生基本信息维护");
    jButton1.setFont(new java.awt.Font("Serif", 0, 12));
    jButton1.setText("删除");
    jButton1.addActionListener(new students_show_jButton1_actionAdapter(this));
    jButton2.setFont(new java.awt.Font("Serif", 0, 12));
    jButton2.setText("修改");
    jButton2.addActionListener(new students_show_jButton2_actionAdapter(this));
    jButton3.setFont(new java.awt.Font("Serif", 0, 12));
    jButton3.setText("增加");
    jButton3.addActionListener(new students_show_jButton3_actionAdapter(this));
    this.setPreferredSize(new Dimension(600, 600));
    jScrollPane1.setPreferredSize(new Dimension(550, 350));
    this.add(jPanel1, BorderLayout.CENTER);
    jPanel1.add(jScrollPane1, null);
    jScrollPane1.getViewport().add(jTable1, null);
    this.add(jPanel2, BorderLayout.SOUTH);
    jPanel2.add(jButton3, null);
    jPanel2.add(jButton2, null);
    jPanel2.add(jButton1, null);
    this.add(jPanel3, BorderLayout.NORTH);
    jPanel3.add(jLabel1, null);
  }

  void jButton3_actionPerformed(ActionEvent e) {

    students_add md = new students_add(this);
       md.show();


  }

  void jButton2_actionPerformed(ActionEvent e) {
    int row = jTable1.getSelectedRow();
        if (row == -1) {
          JOptionPane.showMessageDialog(this, "请选择要修改的数据!", "提示信息",
                                        JOptionPane.ERROR_MESSAGE);
        }
        else {
         students_xg md = new students_xg(this);
         md.show();
        }


  }

  void jButton1_actionPerformed(ActionEvent e) {
    ASDatacenter dc = null;
      int row = jTable1.getSelectedRow();

      if (row == -1) {
        JOptionPane.showMessageDialog(this, "请选择要删除的数据!", "提示信息",
                                      JOptionPane.ERROR_MESSAGE);
      }
      else {
        try {
          int i=ds.getItemInteger(row,"学生号码").intValue();
          String sql = "delete students_info where 学生号码="+i+"";
          dc = new ASDatacenter();
          dc.connect();
          String[] message = dc.update(sql);
          if (message[0].equals("true")) {
            ds.removeRow(row);
            jTable1.ASTableRepant();
          }
          else {
            JOptionPane.showMessageDialog(this, "删除数据失败!", "提示信息",
                                          JOptionPane.ERROR_MESSAGE);
          }
          dc.disconnect();
        }
        catch (Exception ex) {
          ex.printStackTrace();
        }
      }
  }

}

class students_show_jButton3_actionAdapter implements java.awt.event.ActionListener {
  students_show adaptee;

  students_show_jButton3_actionAdapter(students_show adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jButton3_actionPerformed(e);
  }
}

class students_show_jButton2_actionAdapter implements java.awt.event.ActionListener {
  students_show adaptee;

  students_show_jButton2_actionAdapter(students_show adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jButton2_actionPerformed(e);
  }
}

class students_show_jButton1_actionAdapter implements java.awt.event.ActionListener {
  students_show adaptee;

  students_show_jButton1_actionAdapter(students_show adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jButton1_actionPerformed(e);
  }
}