?? btypedb.java
字號:
package bookType;
import java.sql.*;
import java.util.*;
import com.ConnDB1;
public class BtypeDB extends ConnDB1 implements IBtypeDB{
//Connection connection;
private ArrayList booktype;
public BtypeDB ()throws Exception
{
//
}
//
public Btype getType (int id)
{
try
{
ConnDB1.initialize(); // create database connection
PreparedStatement preparedStatement = aConnection.prepareStatement ("SELECT bookTypeId, bookType FROM bookType WHERE bookTypeId = ?");
preparedStatement.setInt (1, id);
ResultSet resultSet = preparedStatement.executeQuery ();
if (resultSet.next ())
{
Btype btypes = new Btype
(
resultSet.getInt (1), resultSet.getString (2)
);
preparedStatement.close ();
ConnDB1.terminate();
return btypes;
}
else
{
preparedStatement.close ();
ConnDB1.terminate();
return null;
}
}
catch (SQLException e)
{
ConnDB1.terminate();
return null;
}
}
public int addType (Btype btypes)
{
int rowsAffected = 0;
try
{
ConnDB1.initialize(); // create database connection
PreparedStatement preparedStatement = aConnection.prepareStatement ("INSERT INTO bookType (bookType) VALUES (?)");
preparedStatement.setString (1, btypes.getType());
//鍒ゆ柇鏄
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