sciencequery.txt

高考信息管理系统

package infomanagement;


import java.awt.*;

import javax.swing.*;

import com.borland.jbcl.layout.*;

import com.borland.dbswing.*;

import com.borland.dx.sql.dataset.*;

import java.awt.event.*;

import com.borland.dx.dataset.*;


/**

 * <p>Title: </p>

 * <p>Description: </p>

 * <p>Copyright: Copyright (c) 2003</p>

 * <p>Company: </p>

 * @author unascribed

 * @version 1.0

 */


public class ScienceQuery extends JDialog {

  private JPanel jPanel1 = new JPanel();

  private XYLayout xYLayout1 = new XYLayout();

  private JLabel jLabel1 = new JLabel();

  private JLabel jLabel2 = new JLabel();

  private JLabel jLabel3 = new JLabel();

  private JTextField jtfCardID = new JTextField();

  private JButton jbnQuery = new JButton();

  private Database database1 = new Database();

  private QueryDataSet queryDataSet1 = new QueryDataSet();

  private JdbTable jdbTable1 = new JdbTable();

  private JLabel jLabel4 = new JLabel();

  private JButton jbnExit = new JButton();

  private Column column1 = new Column();

  private Column column2 = new Column();
 
  private Column column3 = new Column();

  private Column column4 = new Column();

  private Column column5 = new Column();

  private JdbTextField jdbTextField1 = new JdbTextField();

  private QueryDataSet queryDataSet2 = new QueryDataSet();


  public ScienceQuery(Frame frame, String title, boolean modal) {

    super(frame, title, modal);

    try {

      jbInit();

      pack();

    }

    catch(Exception ex) {

      ex.printStackTrace();

    }

  }


  public ScienceQuery() {

    this(null, "", false);

  }

  private void jbInit() throws Exception {

    //设置jPanel1为任意放置

    jPanel1.setLayout(xYLayout1);

    jLabel1.setFont(new java.awt.Font("Dialog", 0, 23));

    jLabel1.setForeground(Color.magenta);

    jLabel1.setBorder(BorderFactory.createEtchedBorder());

    //设置文本标题 理科成绩查询

    jLabel1.setText("                     理科成绩查询");

    jLabel2.setBorder(BorderFactory.createEtchedBorder());

    //设置文本标题 准考证号

    jLabel3.setText("准考证号");

    //设置文本标题

    jbnQuery.setText("执行查询");

    jbnQuery.addActionListener(new java.awt.event.ActionListener() {

      public void actionPerformed(ActionEvent e) {

        jbnQuery_actionPerformed(e);

      }

    });

    //连接数据库（local）

    database1.setConnection(new com.borland.dx.sql.dataset.ConnectionDescriptor("jdbc:odbc:local", "sa", "", false, "sun.jdbc.odbc.JdbcOdbcDriver"));

    //设置文本标题 执行查询

    jLabel4.setText("总成绩");

    //设置文本标题 退出

    jbnExit.setText("退出");

    //添加退出事件

    jbnExit.addActionListener(new java.awt.event.ActionListener() {

      public void actionPerformed(ActionEvent e) {

        jbnExit_actionPerformed(e);

      }

    });

    column1.setColumnName("NewColumn1");

    column1.setDataType(com.borland.dx.dataset.Variant.STRING);
        column1.setPreferredOrdinal(4);

    column1.setServerColumnName("NewColumn1");

    column1.setSqlType(0);

    column2.setColumnName("subject");

    column2.setDataType(com.borland.dx.dataset.Variant.STRING);

    column2.setPrecision(50);

    column2.setPreferredOrdinal(0);

    column2.setSchemaName("dbo");

    column2.setTableName("science2");

    column2.setServerColumnName("subject");

    column2.setSqlType(12);

    column3.setColumnName("subjectNameID");

    column3.setDataType(com.borland.dx.dataset.Variant.LONG);
        column3.setPreferredOrdinal(1);

    column3.setSchemaName("dbo");

    column3.setTableName("science2");

    column3.setServerColumnName("subjectNameID");

    column3.setSqlType(-5);

    column4.setColumnName("cardID");

    column4.setDataType(com.borland.dx.dataset.Variant.LONG);
        column4.setPreferredOrdinal(2);

    column4.setSchemaName("dbo");

    column4.setTableName("science2");

    column4.setServerColumnName("cardID");

    column4.setSqlType(-5);

    column5.setColumnName("achievement");

    column5.setDataType(com.borland.dx.dataset.Variant.STRING);

    column5.setPrecision(50);

    column5.setPreferredOrdinal(3);

    column5.setSchemaName("dbo");

    column5.setTableName("science2");

    column5.setServerColumnName("achievement");

    column5.setSqlType(12);





    this.getContentPane().add(jPanel1, BorderLayout.CENTER);

    //在jPanel1中放置各个控件

    jPanel1.add(jLabel1, new XYConstraints(0, 1, 399, 53));

    jPanel1.add(jLabel3,   new XYConstraints(10, 66, 80, 19));

    jPanel1.add(jtfCardID,    new XYConstraints(97, 66, 80, 21));

    jPanel1.add(jLabel2,   new XYConstraints(0, 53, 398, 49));

    jPanel1.add(jbnQuery,       new XYConstraints(300, 66, 90, 22));

    jPanel1.add(jdbTable1,      new XYConstraints(0, 100, 398, 154));

    jPanel1.add(jLabel4,     new XYConstraints(10, 268, 80, 20));

    jPanel1.add(jbnExit,     new XYConstraints(300, 268, 90, 20));

    jPanel1.add(jdbTextField1,    new XYConstraints(100, 268, 90, 20));

  }

  //定义退出方法

  void cancel(){

    dispose() ;

  }

  //退出事件

  void jbnExit_actionPerformed(ActionEvent e) {

    cancel();

  }

  //执行查询语句

  void jbnQuery_actionPerformed(ActionEvent e) {

    //进行数据查询

    try{

    //获得准考证号

    int cardID1 = Integer.parseInt(jtfCardID.getText().trim());

    //查询学习成绩

    queryDataSet1.setQuery(new com.borland.dx.sql.dataset.QueryDescriptor(database1, "SELECT science2.cardID,science2.subject,science2.achievement,science2.subjectNameID " +
      "FROM info.dbo.science2 where science2.cardID = '"+cardID1+"'", null, true, Load.ALL));
    // queryDataSet1.setColumns(new Column[] {column2, column3, column4, column5, column1});

    //加入到jdbTable1中

    jdbTable1.setDataSet(queryDataSet1);

    //执行sum语句，获得成绩总分

    queryDataSet2.setQuery(new com.borland.dx.sql.dataset.QueryDescriptor(database1, "SELECT SUM(achievement) AS SUM_achievement FROM info.dbo.science2\n" +

      "where science2.cardID ='"+cardID1+"'", null, true, Load.ALL));

    //在jdbTextField1中加入一列

    jdbTextField1.setColumnName("SUM_achievement");

    //把数据集加入到jdbTextField1中

    jdbTextField1.setDataSet(queryDataSet2);

    }

    catch(Exception sql){

      JOptionPane.showMessageDialog(this,"准考证不存在，请重试");

    }

  }

}