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 {    //設置jPanel1為任意放置    jPanel1.setLayout(xYLayout1);    jLabel1.setFont(new java.awt.Font("Dialog", 0, 23));    jLabel1.setForeground(Color.magenta);    jLabel1.setBorder(BorderFactory.createEtchedBorder());    //設置文本標題 理科成績查詢    jLabel1.setText("                     理科成績查詢");    jLabel2.setBorder(BorderFactory.createEtchedBorder());    //設置文本標題 準考證號    jLabel3.setText("準考證號");    //設置文本標題    jbnQuery.setText("執(zhí)行查詢");    jbnQuery.addActionListener(new java.awt.event.ActionListener() {      public void actionPerformed(ActionEvent e) {        jbnQuery_actionPerformed(e);      }    });    //連接數(shù)據(jù)庫（local）    database1.setConnection(new com.borland.dx.sql.dataset.ConnectionDescriptor("jdbc:odbc:local", "sa", "", false, "sun.jdbc.odbc.JdbcOdbcDriver"));    //設置文本標題 執(zhí)行查詢    jLabel4.setText("總成績");    //設置文本標題 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中放置各個控件    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));  }  //定義退出方法  void cancel(){    dispose() ;  }  //退出事件  void jbnExit_actionPerformed(ActionEvent e) {    cancel();  }  //執(zhí)行查詢語句  void jbnQuery_actionPerformed(ActionEvent e) {    //進行數(shù)據(jù)查詢    try{    //獲得準考證號    int cardID1 = Integer.parseInt(jtfCardID.getText().trim());    //查詢學習成績    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);    //執(zhí)行sum語句，獲得成績總分    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");    //把數(shù)據(jù)集加入到jdbTextField1中    jdbTextField1.setDataSet(queryDataSet2);    }    catch(Exception sql){      JOptionPane.showMessageDialog(this,"準考證不存在，請重試");    }  }}