classinfoshow.java~4~

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 classinfo;

/**
 * <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.*; //引入本包中的类，因为我们要用到的ASTable类(表格)、ASPanel类(面板)、ASTableView类(图视)  都位于本包中
import com.zdsoft.datacenter.ASDatacenter; //引入本包中的类，因为我们要用到的ASDatacenter类(数据中心，
//用来连接相应数据库及执行各种数据库操作)位于本包中
import com.zdsoft.datastore.ASDatastore; //引入本包中的类，因为我们要用到的ASDatastore类(数据仓库)位于本包中
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class ClassInfoShow
    extends ASPanel {
  JPanel jPanel1 = new JPanel();
  JPanel jPanel2 = new JPanel();
  JPanel jPanel3 = new JPanel();
  JButton jButton1 = new JButton();
  JButton jButton2 = new JButton();
  JButton jButton3 = new JButton();
  JLabel jLabel1 = new JLabel();
  JScrollPane jScrollPane1 = new JScrollPane();
  ASTable jTable1;
  ASDatastore ds;

  public ClassInfoShow() {
    try {
      jbInit();
    }
    catch (Exception e) {
      e.printStackTrace();
    }
  }

  private void jbInit() throws Exception {
    ASDatacenter dc = new ASDatacenter();
    dc.connect();
    String sql = "select * from bj_info";
    ds = dc.retrieve(sql);

    String[] liab = new String[3];
    liab[0] = "班级编号";
    liab[1] = "班级名称";
    liab[2] = "班主任";
    ds.setTitleLable(liab);
    ASTableView tv = new ASTableView(ds);
    jTable1 = new ASTable(tv);
    dc.disconnect();

    jButton1.setFont(new java.awt.Font("Serif", 0, 12));
    jButton1.setText("删除");
    jButton1.addActionListener(new ClassInfoShow_jButton1_actionAdapter(this));
    jButton2.setFont(new java.awt.Font("Serif", 0, 12));
    jButton2.setText("修改");
    jButton3.setFont(new java.awt.Font("Serif", 0, 12));
    jButton3.setText("增加");
    jButton3.addActionListener(new ClassInfoShow_jButton3_actionAdapter(this));
    jLabel1.setFont(new java.awt.Font("Serif", 0, 20));
    jLabel1.setText("班级信息维护");
    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) {
    ClassInfoAdd md = new ClassInfoAdd(this); //创建mzxxadd类的一个对象，即是创建一个可显示页面，并将本页面（是一个test1类的对象）
    //通过mzxxadd类定义的构造方法传给mzxxadd窗体.这样我们就能够在mzxxadd窗体中使用test1
    //页面中的各种成员变量和成员方法。
    md.show(); //将创建的页面对象显示出来

  }

  void jButton1_actionPerformed(ActionEvent e) {
    int i = jTable1.getSelectedRow();
    if (i == -1) {
      JOptionPane.showMessageDialog(this, "请选择要删除的数据!", "提示信息",
                                    JOptionPane.ERROR_MESSAGE);
    }
    else {
      try {
        int id = ds.getItemInteger(i, "id").intValue();
        String sql = "delete bj_info where id=" + id;
        ASDatacenter dc = new ASDatacenter();
        dc.connect();
        String[] msg = dc.update(sql);
        if (msg[0].equals("true")) {
          ds.removeRow(i);
          jTable1.ASTableRepant();
        }
        else {}
        dc.disconnect();
      }
      catch (Exception ex) {

      }
    }

  }

}

class ClassInfoShow_jButton3_actionAdapter
    implements java.awt.event.ActionListener {
  ClassInfoShow adaptee;

  ClassInfoShow_jButton3_actionAdapter(ClassInfoShow adaptee) {
    this.adaptee = adaptee;
  }

  public void actionPerformed(ActionEvent e) {
    adaptee.jButton3_actionPerformed(e);
  }
}

class ClassInfoShow_jButton1_actionAdapter
    implements java.awt.event.ActionListener {
  ClassInfoShow adaptee;

  ClassInfoShow_jButton1_actionAdapter(ClassInfoShow adaptee) {
    this.adaptee = adaptee;
  }

  public void actionPerformed(ActionEvent e) {
    adaptee.jButton1_actionPerformed(e);
  }
}