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数据库总外观2006-06-20 11:06:00

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import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.sql.*;
import javax.swing.border.*;
import java.util.*;

public class Allmain{
 
//---------------------------------------------------------变量定义
//swing
JLabel conLabel,addLabel,modLabel,droLabel,aboLabel;
JButton conButton,addButton,modButton,droButton;
JTextField conField;
JFrame mainFrame;
//string
static final String JDBC="sun.jdbc.odbc.JdbcOdbcDriver";
static final String DATEBASE="jdbc:odbc:studyDSN";
//数据库API变量
public Connection connection;
public Statement statement;
String sqlString;


//----------------------------------------------------------------------

 Allmain(){
  mainFrame=new JFrame("数据库课程设计");
  JPanel mainPanel=new JPanel();
  mainPanel.setBackground(new Color(255,192,192));
  mainPanel.setLayout(new GridLayout(5,2,5,5));
//------------------------------------------------------外观值
aboLabel=new JLabel("");

conLabel=new JLabel("数据库名称");
addLabel=new JLabel("添加数据");
modLabel=new JLabel("修改数据");
droLabel=new JLabel("删除数据");
conButton=new JButton("连接");
conButton.setBackground(new Color(50,192,192));
conButton.setFont(new Font("SansSerif",Font.PLAIN,18));
addButton=new JButton("添加");
addButton.setBackground(new Color(50,192,192));
addButton.setFont(new Font("SansSerif",Font.PLAIN,18));
modButton=new JButton("修改");
modButton.setBackground(new Color(50,192,192));
modButton.setFont(new Font("SansSerif",Font.PLAIN,18));
droButton=new JButton("删除");
droButton.setBackground(new Color(50,192,192));
droButton.setFont(new Font("SansSerif",Font.PLAIN,18));
conField=new JTextField(10);
//_______________________________________________________________________ 
  mainPanel.add(conLabel);
  mainPanel.add(conField);
  mainPanel.add(aboLabel);
  mainPanel.add(conButton);
 
  mainPanel.add(addLabel);
  mainPanel.add(addButton);
  mainPanel.add(modLabel);
  mainPanel.add(modButton);
  mainPanel.add(droLabel);
  mainPanel.add(droButton);
 mainFrame.getContentPane().add(mainPanel);
 mainFrame.setBounds(200,200,200,200);
 mainFrame.setVisible(true);
//------------------------------------------------------------------添加进监听
conButton.addActionListener(new ActionListener(){
 public void actionPerformed(ActionEvent e){
 con(); }});
addButton.addActionListener(new ActionListener(){
 public void actionPerformed(ActionEvent e){
 add(); }});
modButton.addActionListener(new ActionListener(){
 public void actionPerformed(ActionEvent e){
 mod(); }});
droButton.addActionListener(new ActionListener(){
 public void actionPerformed(ActionEvent e){
 dro(); }});
//____________________________________________________________________________ 
 
 }
 
//--------------------------------------------------------------------方法
void con(){
 initize(); }
void add(){//添加
new AddStudentFrame();
}
void mod(){//修改
}
void dro(){//删除
}
void initize(){//初始化
try{
 Class.forName(JDBC);
 connection=DriverManager.getConnection(DATEBASE,"sa","");//注意:可改变
 statement=connection.createStatement();

  
}
catch(SQLException sqlException){
   JOptionPane.showMessageDialog(null,sqlException.getMessage(),"Database error",JOptionPane.ERROR_MESSAGE);
   System.exit(1);
  }
  catch(ClassNotFoundException classNotFound){
   JOptionPane.showMessageDialog(null,classNotFound.getMessage(),"driver not found",JOptionPane.ERROR_MESSAGE);
   System.exit(1);
  }
catch(Exception e){
 System.out.print(e.toString());
}

}
//_____________________________________________________________________________
//----------------------------------------------------------------------------------------main
 public static void main(String args[]){
  new Allmain();
 
 }
//___________________________________________________________________________________________________
//-------------------------------------------------------------------------------------AddStudentFrame
class AddStudentFrame extends JFrame{
 private StudentUI userInterface;
 private JButton clearButton,writeButton;
 
 String names[]={"学号","姓名","性别","年龄","所在系"
 };
 public AddStudentFrame(){
  super("添加一个学生记录");
 
 
  userInterface=new StudentUI(names);
  getContentPane().add(userInterface,BorderLayout.CENTER);
//--------------------------------------------------------------------------------保存也就是添加
  writeButton=userInterface.getDotask1Button();
  writeButton.setText("保存");
 
  writeButton.addActionListener(new ActionListener(){
   public void actionPerformed(ActionEvent event){
    addRecord();
   }
  });
//______________________________________________________________________________________________
//------------------------------------------------------------------------------------清除
  clearButton=userInterface.getDoTask2Button();
  clearButton.setText("清除");
 
  clearButton.addActionListener(
   new ActionListener(){
    public void actionPerformed(ActionEvent event){
     userInterface.clearFields();
    }
   });
  
  addWindowListener(new WindowAdapter(){
   public void windowClosing(WindowEvent event)
   {
    terminate();
   }
  });
//____________________________________________________________________________________________
  setSize(300,200);
  setVisible(true);
 }
 
 public void terminate(){
  try{
   statement.close();
   connection.close();
  
  }
  catch(SQLException sqlException){
   JOptionPane.showMessageDialog(null,sqlException.getMessage(),"database error",JOptionPane.ERROR_MESSAGE);
   System.exit(1);
  }
 }
//----------------------------------------------------------------------------方法
//addRecord()
 public void addRecord(){
  String fieldValues[]=userInterface.getFieldValues();
  if(!fieldValues[StudentUI.SNO].equals("")){
   try{
    int numberAge=Integer.parseInt(fieldValues[StudentUI.SAGE]);
   
    String sqlInsert="insert into student"+"values('"+fieldValues[0]+"','"+fieldValues[1]+"','"+fieldValues[2]+"',"+numberAge+",'"+fieldValues[4]+"')";
    int result=statement.executeUpdate(sqlInsert);
    if(result!=0){
     userInterface.clearFields();
     JOptionPane.showMessageDialog(this,"inserted sucess!","insert result",JOptionPane.INFORMATION_MESSAGE);
    }
   
   }
   catch(NumberFormatException formatException){
    JOptionPane.showMessageDialog(this,"bad age numver","invalid numver format",JOptionPane.ERROR_MESSAGE);
   }
   catch(SQLException ee)
    {System.out.println(ee);
    }
   }
   else JOptionPane.showMessageDialog(this,"bad sno number","invalid number format",JOptionPane.ERROR_MESSAGE);
  }
 //_____________________________________________________________________________________________________
  }

//______________________________________________________________________________________________
//--------------------------------------------------------------------------StudentUI
public class StudentUI extends JPanel{
 protected JLabel labels[];
 protected JTextField fields[];
 protected JButton doTask1,doTask2;
 protected JPanel innerPanelCenter,innerPanelSouth;
 protected int size;
 
 public static final int SNO=0,SNAME=1,SSEX=2,SAGE=3,SDEPT=4;
 
 public StudentUI(String arrayString[]){
  size=arrayString.length;
  labels=new JLabel[size];
  fields=new JTextField[size];
 
  for(int count=0;count<labels.length;count++)
  labels[count]=new JLabel(arrayString[count]);
 
  for(int count=0;count<fields.length;count++)
  fields[count]=new JTextField();
 
  innerPanelCenter=new JPanel();
  innerPanelCenter.setLayout(new GridLayout(size,2));
 
  for(int count=0;count<size;count++){
   innerPanelCenter.add(labels[count]);
   innerPanelCenter.add(fields[count]);
  }
 
  doTask1=new JButton();doTask2=new JButton();
  innerPanelSouth=new JPanel();
  innerPanelSouth.add(doTask1);
  innerPanelSouth.add(doTask2);
 
  setLayout(new BorderLayout());
  add(innerPanelCenter,BorderLayout.CENTER);
  add(innerPanelSouth,BorderLayout.SOUTH);
  setBorder(BorderFactory.createBevelBorder(BevelBorder.RAISED));
  validate();
 }
 
 public JButton getDotask1Button(){
  return doTask1;
 }
 public JButton getDoTask2Button(){
  return doTask2;
 }
 
 public JTextField[] getFields(){
  return fields;
 }
 public void clearFields(){
  for(int count=0;count<size;count++)
  fields[count].setText("");
 }
 
 public void setFieldValues(String strings[])
 throws IllegalArgumentException
 {if(strings.length!=size)throw new IllegalArgumentException("there must be"+size+"strings in the array");
 for(int count=0;count<size;count++)
  fields[count].setText(strings[count]);
 }
 public String[] getFieldValues()
 {
  String values[]=new String[size];
  for(int count=0;count<size;count++)
  values[count]=fields[count].getText();
  return values;
 }
 
}


//_______________________________________________________________________________________________
 
}

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