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

源代码在线查看: frame2.java~54~

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关键词: Java 数据库系统 实践 代码
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				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.*;				import com.borland.dbswing.*;				//货品信息登记				public class Frame2 extends JFrame {				  JPanel contentPane;				  JLabel jLabel1 = new JLabel();				  XYLayout xYLayout1 = new XYLayout();				  JLabel jLabel2 = new JLabel();				  JLabel jLabel3 = new JLabel();				  JTextField jTextField1 = new JTextField();				  JLabel jLabel4 = new JLabel();				  JTextField jTextField2 = new JTextField();				  JPanel jPanel1 = new JPanel();				  XYLayout xYLayout2 = new XYLayout();				  JScrollPane jScrollPane1 = new JScrollPane();				  JLabel jLabel5 = new JLabel();				  JTextField jTextField3 = new JTextField();								  //Construct the frame				  public Frame2() {				    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("销售管理系统");				    this.addHierarchyBoundsListener(new Frame2_this_hierarchyBoundsAdapter(this));				    jLabel1.setFont(new java.awt.Font("SansSerif", 0, 25));				    jLabel1.setForeground(Color.red);				    jLabel1.setText("销售管理系统");				    contentPane.setForeground(Color.black);				    jLabel2.setFont(new java.awt.Font("SansSerif", 0, 30));				    jLabel2.setText("产 品 信 息 展 示");				   // statusBar.setFont(new java.awt.Font("SansSerif", 0, 20));				    jLabel3.setFont(new java.awt.Font("SansSerif", 0, 20));				    jLabel3.setText("产品名称");				    jTextField1.setText("");				    jLabel4.setEnabled(true);				    jLabel4.setFont(new java.awt.Font("SansSerif", 0, 20));				    jLabel4.setText("产品ID号");				    jTextField2.setText("");				    jTextField2.addActionListener(new Frame2_jTextField2_actionAdapter(this));				    jPanel1.setLayout(xYLayout2);				    jLabel5.setFont(new java.awt.Font("SansSerif", 0, 25));				    jLabel5.setForeground(Color.red);				    jLabel5.setText("该产品详细信息");				    jTextField3.setText("");				    contentPane.add(jLabel1, new XYConstraints(237, 0, 153, 40));				    contentPane.add(jLabel2, new XYConstraints(200, 47, 231, 58));				    contentPane.add(jLabel3,  new XYConstraints(47, 102, 101, 42));				    contentPane.add(jTextField1,    new XYConstraints(128, 108, 112, 34));				    contentPane.add(jTextField2,    new XYConstraints(361, 107, 109, 36));				    contentPane.add(jPanel1,      new XYConstraints(75, 166, 453, 277));				    jPanel1.add(jScrollPane1,     new XYConstraints(14, 8, 433, 221));				    jScrollPane1.getViewport().add(jTextField3, null);				    jPanel1.add(jLabel5,    new XYConstraints(112, 240, -1, -1));				    contentPane.add(jLabel4, new XYConstraints(278, 111, -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 Select() {				   try {				     String str1, str2;				     str1 = jTextField1.getText();				     str2 = jTextField2.getText();				     //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:liuyong", "sa", "tongfang");				     PreparedStatement pstmt = con.prepareStatement(				         " select Good('ID','name' ,'quality','price') where ID=? and name=? ");				     pstmt.setString(1, str1);				     pstmt.setString(2, str2);				     ResultSet res = pstmt.executeQuery();				     //String sa=res.getString(1);				     String outputarea="  Id " +"     Name   "+"    quality   "+"  price  "+"\n";				          do{				           outputarea+="  "+res.getString(1)+"  "+"  "+res.getString(2)+"  "+"  "+res.getString(3)+"  "+"      "+res.getInt(4)+"  "+"     "+res.getString(5)+"  "+"   "+res.getString(6)+"  "+"       "+res.getInt(7)+"  "+"\n";				          jTextField3.setText(outputarea);				         }while (res.next());				   }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());				   }				 }				 void validID() {				   try {				     String str1, str2;				     str1 = jTextField1.getText();				     str2 = jTextField2.getText();				     //装载jdbc驱动程序。				     //通过下面的程序我们完成对oracle数据库的动态连接。				     String driverName = "oracle.jdbc.OracleDriver";				     Driver driver = (Driver) Class.forName(driverName).newInstance();				     //连接数据库				     //在下面的程序中我们连接的数据库是名为“tongfang“的数据库				     //登录名是”sa“密码是“tongfang”				     Connection con = DriverManager.getConnection(				         "jdbc:oracle:thin:@thsspc0791:1521:liuyong", "sa", "tongfang");				     //执行动态的sql语句				     PreparedStatement pstmt = con.prepareStatement(				         //依据产品的的名字查询产品的信息的sql语句				        " select Good('ID','name' ,'quality','price') where ID=? and name=? ");				     //将产品的名字添加到具体的sql语句中				     pstmt.setString(1, str1);				     //使用ResultSet中的方法executeQuery()来完成sql语句的执行				     ResultSet res = pstmt.executeQuery();				     //使用getString()来获取sql查询的结果				     //String sa=res.getString(1);				     if ((!res.next()) || res.getString("password") == null) {				       JOptionPane.showMessageDialog(this, "查无此产品", "名字错误",				                                     JOptionPane.ERROR_MESSAGE);				     }else {				       if ( !res.getString("ID").equals(str2)) {				         JOptionPane.showMessageDialog(this, "ID", "错误",				                                     JOptionPane.ERROR_MESSAGE);				       }else {				        do{				           System.out.println(res.getString(1)+":" + res.getString(2) +				                              ":" +res.getString(3)+res.getString(4));				         }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());				   }				 }								  void this_ancestorMoved(HierarchyEvent e) {								  }								  void jTextField2_actionPerformed(ActionEvent e) {				    validID();				   Select();				  }				}								class Frame2_this_hierarchyBoundsAdapter extends java.awt.event.HierarchyBoundsAdapter {				  Frame2 adaptee;								  Frame2_this_hierarchyBoundsAdapter(Frame2 adaptee) {				    this.adaptee = adaptee;				  }				  public void ancestorMoved(HierarchyEvent e) {				    adaptee.this_ancestorMoved(e);				  }				}								class Frame2_jTextField2_actionAdapter implements java.awt.event.ActionListener {				  Frame2 adaptee;								  Frame2_jTextField2_actionAdapter(Frame2 adaptee) {				    this.adaptee = adaptee;				  }				  public void actionPerformed(ActionEvent e) {				    adaptee.jTextField2_actionPerformed(e);				  }				}			

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