xianshichaxun1.java

这是自己做的图书馆信息管理系统

package infomanagement;

/**
 * <p>Title: </p>
 *
 * <p>Description: </p>
 *
 * <p>Copyright: Copyright (c) 2003</p>
 *
 * <p>Company: </p>
 *
 * @author not attributable
 * @version 1.0
 */
import java.awt.*;
import javax.swing.*;
import com.borland.jbcl.layout.*;
import com.borland.dbswing.*;
import com.borland.dx.sql.dataset.*;
import com.borland.dx.dataset.*;
import java.awt.event.*;
import java.awt.Font;
import java.awt.BorderLayout;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2003</p>
 * <p>Company: </p>
 * @author unascribed
 * @version 1.0
 */
public class xianshichaxun1 extends JDialog {
  private JPanel jPanel1 = new JPanel();
  private XYLayout xYLayout1 = new XYLayout();
  private JLabel jLabel1 = new JLabel();
  private QueryDataSet queryDataSet1 = new QueryDataSet();
  private Database database1 = new Database();
  private QueryDataSet queryDataSet2 = new QueryDataSet();
  private Column column1 = new Column();
  JButton jButton1 = new JButton();
  JTextArea jTextArea1 = new JTextArea();
  JScrollPane jScrollPane1 = new JScrollPane();
  //JTable jTable1 = new JTable();
  String[][] po=new String[8][6];
  String[] po1={"姓名","学号","所在系"};
  public xianshichaxun1(Frame frame, String title, boolean modal) {
    super(frame, title, modal);
    try {
      jbInit();
      pack();
    }
    catch(Exception ex) {
      ex.printStackTrace();
    }
  }

  public xianshichaxun1() {
    this(null, "", false);
  }
  private void jbInit() throws Exception {
    jPanel1.setLayout(xYLayout1);
    jLabel1.setFont(new java.awt.Font("Dialog", 0, 23));
    jLabel1.setForeground(Color.magenta);
    jLabel1.setBorder(BorderFactory.createEtchedBorder());
    jLabel1.setText("                     学生全部显示");
    database1.setConnection(new com.borland.dx.sql.dataset.ConnectionDescriptor
                            ("jdbc:odbc:local", "sa", "", false,
                             "sun.jdbc.odbc.JdbcOdbcDriver"));
    column1.setColumnName("NewColumn1");
    column1.setDataType(com.borland.dx.dataset.Variant.STRING);
    column1.setPreferredOrdinal(0);
    column1.setServerColumnName("NewColumn1");
    column1.setSqlType(0);
    jButton1.setText("查询");
    this.getContentPane().add(jPanel1, BorderLayout.CENTER);





    dabaco bb=new dabaco();
      String gg="";
      String hh="";
      boolean mk=false;
      try
      {
      String query1="select * from student ";
      PreparedStatement ps=bb.conn.prepareStatement(query1);
      //ps.setString(1,a);
      //ResultSet rs = bb.stmt.executeQuery(query1);
      //ResultSet rs=ps.executeQuery();
      //
      ResultSet rs = bb.stmt.executeQuery(query1);
      ResultSetMetaData rsmd=rs.getMetaData();
      int numberofcolumns=rsmd.getColumnCount();
      //System.out.println(numberofcolumns);
      gg="姓名   学号   所在系"+"\n";
      int u=0;
      while (rs.next())
      {
        for(int i=0;i<=numberofcolumns-1;i++)
        {
          //gg = gg+rs.getString(i)+"    ";
            po[u][i]=rs.getString(i+1);
        }
        //gg=gg+"\n";
        u++;
      }
      JTable jTable1=new JTable(po,po1);
      jPanel1.add(jLabel1, new XYConstraints(0, 1, 399, 53));
      jPanel1.add(jScrollPane1, new XYConstraints(1, 54, 398, 245));
      jScrollPane1.getViewport().add(jTable1);

      jTextArea1.setText(gg);
      }
      catch(SQLException ex)
      {

      }



  }


  void cancel()
  {
    dispose() ;
  }



}