delete_madicine.java~24~

在个一个诊所系统,实现数据的查询和删除等的操作.

package clinique;

import java.awt.*;

import javax.swing.*;
import java.awt.Rectangle;
import com.borland.dbswing.JdbTable;
import com.borland.dx.sql.dataset.Database;
import com.borland.dx.sql.dataset.QueryDataSet;
import com.borland.dx.sql.dataset.ConnectionDescriptor;
import com.borland.dx.sql.dataset.Load;
import com.borland.dx.sql.dataset.QueryDescriptor;
import com.borland.dx.dataset.Column;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.event.AncestorEvent;
import javax.swing.event.AncestorListener;
import java.sql.DriverManager;
import java.sql.Statement;
import java.sql.Connection;
import java.sql.SQLException;
import java.awt.event.MouseEvent;
import java.awt.event.MouseAdapter;
import java.awt.Font;
import javax.swing.BorderFactory;

/**
 * <p>Title: </p>
 *
 * <p>Description: </p>
 *
 * <p>Copyright: Copyright (c) 2007</p>
 *
 * <p>Company: </p>
 *
 * @author not attributable
 * @version 1.0
 */
public class delete_madicine extends JPanel {
    int n;
    String id;
    int x=-1;
    public delete_madicine() {
        try {
            jbInit();
        } catch (Exception exception) {
            exception.printStackTrace();
        }
    }

    private void jbInit() throws Exception {
        this.setLayout(null);
        jScrollPane1.setBounds(new Rectangle(11, 10, 637, 245));
        database1.setConnection(new ConnectionDescriptor(
                "jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=clinique",
                "sa", "", false, "com.microsoft.jdbc.sqlserver.SQLServerDriver"));
        queryDataSet1.setQuery(new QueryDescriptor(database1,
                "select * from medicine", null, true, Load.ALL));
        jdbTable1.setDataSet(queryDataSet1);
        jdbTable1.setEditable(false);
        jdbTable1.addMouseListener(new delete_madicine_jdbTable1_mouseAdapter(this));
        column1.setColumnName("name");
        column1.setDataType(com.borland.dx.dataset.Variant.STRING);
        column1.setPrecision(50);
        column1.setTableName("medicine");
        column1.setWidth(14);
        column1.setServerColumnName("name");
        column1.setSqlType(1);
        column2.setColumnName("factory");
        column2.setDataType(com.borland.dx.dataset.Variant.STRING);
        column2.setDefault("");
        column2.setPrecision(50);
        column2.setTableName("medicine");
        column2.setWidth(14);
        column2.setServerColumnName("factory");
        column2.setSqlType(1);
        jBdelete.setBounds(new Rectangle(489, 34, 74, 23));
        jBdelete.setText("删除");
        jBdelete.addAncestorListener(new
                                     delete_madicine_jBdelete_ancestorAdapter(this));
        jBdelete.addActionListener(new delete_madicine_jBdelete_actionAdapter(this));
        look.setBounds(new Rectangle(265, 34, 69, 23));
        look.setSelectedIcon(null);
        look.setText("查询");
        look.addActionListener(new delete_madicine_jBreturn_actionAdapter(this));
        column3.setColumnName("medicine_id");
        column3.setDataType(com.borland.dx.dataset.Variant.INT);
        column3.setRowId(true);
        column3.setTableName("medicine");
        column3.setWidth(14);
        column3.setServerColumnName("MEDICINE_ID");
        column3.setSqlType(4);
        column4.setColumnName("price");
        column4.setDataType(com.borland.dx.dataset.Variant.BIGDECIMAL);
        column4.setPrecision(18);
        column4.setScale(2);
        column4.setTableName("medicine");
        column4.setWidth(14);
        column4.setServerColumnName("PRICE");
        column4.setSqlType(3);
        jLabel1.setFont(new java.awt.Font("宋体", Font.BOLD, 15));
        jLabel1.setText("药品信息删除");
        jLabel1.setBounds(new Rectangle(28, 15, 113, 35));
        jPanel1.setBorder(BorderFactory.createEtchedBorder());
        jPanel1.setBounds(new Rectangle(63, 57, 659, 372));
        jPanel1.setLayout(null);
        jPanel2.setBorder(BorderFactory.createEtchedBorder());
        jPanel2.setBounds(new Rectangle(11, 280, 637, 85));
        jPanel2.setLayout(null);
        lookname.setBounds(new Rectangle(138, 36, 77, 20));
        jLabel2.setText("姓名查询：");
        jLabel2.setBounds(new Rectangle(62, 36, 69, 15));
        show.setBounds(new Rectangle(377, 34, 81, 23));
        show.setText("显示全部");
        jPanel2.add(jLabel2);
        jPanel2.add(jBdelete);
        jPanel2.add(lookname);
        jPanel2.add(show);
        jPanel2.add(look);
        jPanel1.add(jScrollPane1);
        jPanel1.add(jPanel2);
        jScrollPane1.getViewport().add(jdbTable1);

        this.add(jLabel1);
        this.add(jPanel1);
        queryDataSet1.setColumns(new Column[] {column3, column1, column2,
                                 column4});
    }

    JScrollPane jScrollPane1 = new JScrollPane();
    JdbTable jdbTable1 = new JdbTable();
    Database database1 = new Database();
    QueryDataSet queryDataSet1 = new QueryDataSet();
    Column column1 = new Column();
    Column column2 = new Column();
    JButton jBdelete = new JButton();
    JButton look = new JButton();
    Column column3 = new Column();
    Column column4 = new Column();
    JLabel jLabel1 = new JLabel();
    JPanel jPanel1 = new JPanel();
    JPanel jPanel2 = new JPanel();
    JTextField lookname = new JTextField();
    JLabel jLabel2 = new JLabel();
    JButton show = new JButton();
    public void jBdelete_actionPerformed(ActionEvent e) {
        if(x==-1)
        {
            JOptionPane.showMessageDialog(null,"请选择要删除的一条纪录!");
        }
        else
        {
            int y=JOptionPane.showConfirmDialog(null,"确定要删除你选择的这条数据么？","信息提示",JOptionPane.YES_NO_OPTION);
            if(y==JOptionPane.YES_OPTION)
            {
                delete();
            }
            else
               JOptionPane.showMessageDialog(null,"你所选择的数据没用删除！");

        }
    }
    private void delete()
    {
        try {
    Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");
} catch (ClassNotFoundException ce) {
    System.out.println(ce);
}
try {
    String url = "jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=clinique";
    Connection con = DriverManager.getConnection(url,"sa","");
    String sqlStr;
    sqlStr="delete from medicine where medicine_id=\'"+id+"\'";
    Statement s = con.createStatement();
    s.executeUpdate(sqlStr);
    JOptionPane.showMessageDialog(null,"删除数据成功!");
    queryDataSet1.refresh();
    s.close();
    con.close();
    x=-1;
} catch (SQLException ce) {
    System.out.println(ce);
}

    }

    public void jBdelete_ancestorAdded(AncestorEvent event) {

    }

    public void jBreturn_actionPerformed(ActionEvent e) {
        if(lookname.getText().length()==0)
        {
            JOptionPane.showMessageDialog(null,"请输入你要查询的关键字！");
            lookname.requestFocus();
        }
        else if(!lookname.getText().equals(""))
        {
            queryDataSet1.close();
            queryDataSet1.setQuery(new QueryDescriptor(database1,
                    "select * from medicine where name=\'" +
                    lookname.getText() + "\'", null, true,
                    Load.ALL));
            jdbTable1.setDataSet(queryDataSet1);
            queryDataSet1.refresh();
            if(queryDataSet1.getRowCount()==0)
            {
                JOptionPane.showMessageDialog(null,"你要查询的药品信息不存在");
            }
        }
    }

    public void jdbTable1_mouseClicked(MouseEvent mouseEvent) {
        x=1;
        n=jdbTable1.getSelectedRow();
        id=""+jdbTable1.getValueAt(n,0);
    }

}


class delete_madicine_jBdelete_ancestorAdapter implements AncestorListener {
    private delete_madicine adaptee;
    delete_madicine_jBdelete_ancestorAdapter(delete_madicine adaptee) {
        this.adaptee = adaptee;
    }

    public void ancestorAdded(AncestorEvent event) {
        adaptee.jBdelete_ancestorAdded(event);
    }

    public void ancestorRemoved(AncestorEvent event) {
    }

    public void ancestorMoved(AncestorEvent event) {
    }
}


class delete_madicine_jBdelete_actionAdapter implements ActionListener {
    private delete_madicine adaptee;
    delete_madicine_jBdelete_actionAdapter(delete_madicine adaptee) {
        this.adaptee = adaptee;
    }

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


class delete_madicine_jdbTable1_mouseAdapter extends MouseAdapter {
    private delete_madicine adaptee;
    delete_madicine_jdbTable1_mouseAdapter(delete_madicine adaptee) {
        this.adaptee = adaptee;
    }

    public void mouseClicked(MouseEvent mouseEvent) {
        adaptee.jdbTable1_mouseClicked(mouseEvent);
    }
}


class delete_madicine_jBreturn_actionAdapter implements ActionListener {
    private delete_madicine adaptee;
    delete_madicine_jBreturn_actionAdapter(delete_madicine adaptee) {
        this.adaptee = adaptee;
    }

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