frame3.java~39~

这是Java数据库系统项目开发实践源代码,所有代码经过测试

package untitled5;
import java.io.*;
import java.net.*;
import java.sql.*;
import java.lang.*;
import javax.sql.*;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import com.borland.jbcl.layout.*;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2003</p>
 * <p>Company: </p>
 * @author not attributable
 * @version 1.0
 */

public class Frame3 extends JFrame {
  JPanel contentPane;
  JLabel statusBar = new JLabel();
  XYLayout xYLayout1 = new XYLayout();
  JLabel jLabel1 = new JLabel();
  JScrollPane jScrollPane1 = new JScrollPane();
  JTextArea jTextArea1 = new JTextArea();
  JLabel jLabel2 = new JLabel();
  JLabel jLabel3 = new JLabel();
  JTextField jTextField1 = new JTextField();
  JLabel jLabel4 = new JLabel();

  //Construct the frame
  public Frame3() {
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  //Component initialization
  private void jbInit() throws Exception  {
    contentPane = (JPanel) this.getContentPane();
    contentPane.setLayout(xYLayout1);
    this.setSize(new Dimension(600, 500));
    this.setTitle("Frame Title");
    statusBar.setText(" ");
    jLabel1.setFont(new java.awt.Font("SansSerif", 0, 20));
    jLabel1.setForeground(Color.red);
    jLabel1.setText("图书管理系统");
    jTextArea1.setBackground(Color.lightGray);
    jTextArea1.setText("");
    jLabel2.setFont(new java.awt.Font("SansSerif", 0, 20));
    jLabel2.setForeground(Color.red);
    jLabel2.setText("书籍的详细信息");
    jLabel3.setFont(new java.awt.Font("SansSerif", 0, 15));
    jLabel3.setText("名称");
    jTextField1.setText("");
    jTextField1.addActionListener(new Frame3_jTextField1_actionAdapter(this));
    jLabel4.setFont(new java.awt.Font("SansSerif", 0, 13));
    jLabel4.setText("请输入书籍的名称");
    contentPane.add(statusBar,  new XYConstraints(0, 284, 400, -1));
    contentPane.add(jScrollPane1,           new XYConstraints(49, 139, 478, 310));
    jScrollPane1.getViewport().add(jTextArea1, null);
    contentPane.add(jLabel3,    new XYConstraints(59, 58, -1, -1));
    contentPane.add(jTextField1,       new XYConstraints(87, 58, 119, 29));
    contentPane.add(jLabel1,         new XYConstraints(242, 0, 138, 42));
    contentPane.add(jLabel2, new XYConstraints(164, 456, 187, 43));
    contentPane.add(jLabel4,      new XYConstraints(7, 38, -1, -1));
  }
  //Overridden so we can exit when window is closed
  protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      System.exit(0);
    }
  }

  void jTextField1_actionPerformed(ActionEvent e) {
     validID();
   System.out.println("str1");
  }
  void validID() {
    System.out.println("JLKJLJLJLJL");
   try {
     String str1;
     str1 = jTextField1.getText();
    // int issn=Integer.parseInt(str1);
     System.out.println(str1);
    // str2 = jPasswordField1.getText();
    // System.out.println(str1);
     //System.out.println(str2);
     //装载jdbc驱动程序
     String driverName = "oracle.jdbc.OracleDriver";
     Driver driver = (Driver) Class.forName(driverName).newInstance();

     //连接数据库
     Connection con = DriverManager.getConnection(
         "jdbc:oracle:thin:@thsspc0791:1521:tongfang", "sa", "tongfang");


     PreparedStatement pstmt = con.prepareStatement(
         " select  name ,writer, issn, state, place, date1, id  from  book  where  name=?  ");


     pstmt.setString(1, str1);
     ResultSet res = pstmt.executeQuery();
     System.out.println("ljljljljljljlj");
     //String sa=res.getString(1);
     if ((!res.next()) || res.getString("writer")== null) {
       JOptionPane.showMessageDialog(this, "查无此书", "错误",
                                   JOptionPane.ERROR_MESSAGE);
     }else {
         String outputarea="  name  " +"      writer  "+"    issn   "+"    state  "+"    place    "+"    date    "+"     id     "+"\n";
         //System.out.println("aksdjflkajsdlf");

         do{
         //System.out.println(res.getString(1)+":" + res.getLong(2) + ":" +res.getLong(3) +":"+res.getInt(4)+":"+res.getString(5)+":"+res.getString(6)+":"+res.getInt(7));
         outputarea+="  "+res.getString(1)+"  "+"  "+res.getString(2)+"  "+"  "+res.getLong(3)+"  "+"      "+res.getString(4)+"  "+"     "+res.getString(5)+"  "+"   "+res.getDate(6)+"     "+"   "+res.getInt(7)+"  "+"\n";
          jTextArea1.setText(outputarea);
         }while (res.next());


     }

     pstmt.close();
     con.close();

   }catch (InstantiationException e) {
     System.out.println(e.getMessage());
   }catch (IllegalAccessException e) {
     System.out.println(e.getMessage());
   }catch (ClassNotFoundException e) {
     System.out.println(e.getMessage());
   }catch (SQLException edd) {
     edd.printStackTrace() ;
     System.out.println(edd.getMessage());
   }
 }
}


class Frame3_jTextField1_actionAdapter implements java.awt.event.ActionListener {
  Frame3 adaptee;

  Frame3_jTextField1_actionAdapter(Frame3 adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jTextField1_actionPerformed(e);
  }
}