landaiqing/JavaWeb-JSP-FlightSystem
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landaiqing
2023-06-05 23:52:15 +08:00
commit 35ec24f344
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src/com/landaiqing/dao/FlightDao.java Normal file
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package com.landaiqing.dao;
import com.landaiqing.entity.FlightEntity;
import com.landaiqing.utils.JDBCUtil;
import java.sql.*;
import java.util.ArrayList;
import java.util.List;
public class FlightDao {
/*
* 查询所有的航班信息
* */
public List<FlightEntity> getByAll() {
Connection connection = null;
PreparedStatement preparedStatement = null;
ResultSet resultSet = null;
try {
connection = JDBCUtil.getConnection();
preparedStatement = connection.prepareStatement("select * from flight where is_delete=0;");
resultSet = preparedStatement.executeQuery();
ArrayList<FlightEntity> flightEntities = new ArrayList<>();
while (resultSet.next()) {
Integer id = resultSet.getInt("id");
String flightId = resultSet.getString("flight_id");
String company = resultSet.getString("company");
String departureAirport = resultSet.getString("departure_airport");
String arriveAirport = resultSet.getString("arrive_airport");
Date departureTime = resultSet.getDate("departure_time");
Date arriveTime = resultSet.getDate("arrive_time");
String model = resultSet.getString("model");
Integer isDelete = resultSet.getInt("is_delete");
FlightEntity flightEntity = new FlightEntity(id, flightId, company, departureAirport, arriveAirport, departureTime, arriveTime, model, isDelete);
flightEntities.add(flightEntity);
}
return flightEntities;
} catch (SQLException e) {
throw new RuntimeException(e);
} finally {
JDBCUtil.closeConnection(resultSet, preparedStatement, connection);
}
}
public int deleteFlghtById(Integer id) {
Connection connection = null;
PreparedStatement preparedStatement = null;
try {
connection = JDBCUtil.getConnection();
JDBCUtil.beginTransaction(connection);
preparedStatement = connection.prepareStatement("delete from flight where id=?;");
preparedStatement.setInt(1, id);
Integer result = preparedStatement.executeUpdate();
JDBCUtil.commitTransaction(connection);
return result;
} catch (SQLException e) {
JDBCUtil.rollBackTransaction(connection);
throw new RuntimeException(e);
} finally {
JDBCUtil.closeConnection(null, preparedStatement, connection);
}
}
public FlightEntity getByIdFlight(Integer id) {
Connection connection = null;
PreparedStatement preparedStatement = null;
ResultSet resultSet = null;
try {
connection = JDBCUtil.getConnection();
preparedStatement = connection.prepareStatement("select * from flight where id=?;");
preparedStatement.setInt(1, id);
resultSet = preparedStatement.executeQuery();
if (!resultSet.next()) {
return null;
}
Integer dbId = resultSet.getInt("id");
String flightId = resultSet.getString("flight_id");
String company = resultSet.getString("company");
String departureAirport = resultSet.getString("departure_airport");
String arriveAirport = resultSet.getString("arrive_airport");
Date departureTime = resultSet.getDate("departure_time");
Date arriveTime = resultSet.getDate("arrive_time");
String model = resultSet.getString("model");
Integer isDelete = resultSet.getInt("is_delete");
FlightEntity flightEntity = new FlightEntity(dbId, flightId, company, departureAirport, arriveAirport, departureTime, arriveTime, model, isDelete);
return flightEntity;
} catch (SQLException e) {
throw new RuntimeException(e);
} finally {
JDBCUtil.closeConnection(resultSet, preparedStatement, connection);
}
}
public int updateFlight(FlightEntity flightEntity){
Connection connection = null;
PreparedStatement preparedStatement = null;
try {
connection = JDBCUtil.getConnection();
JDBCUtil.beginTransaction(connection);
preparedStatement = connection.prepareStatement("UPDATE `testdb`.`flight` SET `flight_id` = ?, `company` = ?, `departure_airport` = ?, `arrive_airport` = ?, `departure_time` = ?, `arrive_time` = ?, `model` = ?, `is_delete` = '0' WHERE `id` = ?;");
preparedStatement.setString(1,flightEntity.getFlightId());
preparedStatement.setString(2,flightEntity.getCompany());
preparedStatement.setString(3,flightEntity.getDepartureAirport());
preparedStatement.setString(4,flightEntity.getArriveAirport());
preparedStatement.setDate(5, new Date(flightEntity.getDepartureTime().getTime()));
preparedStatement.setDate(6, new Date(flightEntity.getArriveTime().getTime()));
preparedStatement.setString(7,flightEntity.getModel());
preparedStatement.setInt(8,flightEntity.getId());
Integer result = preparedStatement.executeUpdate();
JDBCUtil.commitTransaction(connection);
return result;
} catch (SQLException e) {
JDBCUtil.rollBackTransaction(connection);
throw new RuntimeException(e);
} finally {
JDBCUtil.closeConnection(null, preparedStatement, connection);
}
}
public int insertFlight(FlightEntity flightEntity){
Connection connection = null;
PreparedStatement preparedStatement = null;
try {
connection = JDBCUtil.getConnection();
JDBCUtil.beginTransaction(connection);
preparedStatement = connection.prepareStatement("INSERT INTO `testdb`.`flight` (`id`, `flight_id`, `company`, `departure_airport`, `arrive_airport`, `departure_time`, `arrive_time`, `model`, `is_delete`) VALUES (null, ?, ?, ?, ?, ?, ?, ?, '0');");
preparedStatement.setString(1,flightEntity.getFlightId());
preparedStatement.setString(2,flightEntity.getCompany());
preparedStatement.setString(3,flightEntity.getDepartureAirport());
preparedStatement.setString(4,flightEntity.getArriveAirport());
preparedStatement.setDate(5, new Date(flightEntity.getDepartureTime().getTime()));
preparedStatement.setDate(6, new Date(flightEntity.getArriveTime().getTime()));
preparedStatement.setString(7,flightEntity.getModel());
// preparedStatement.setInt(8,flightEntity.getId());
Integer result = preparedStatement.executeUpdate();
JDBCUtil.commitTransaction(connection);
return result;
} catch (SQLException e) {
JDBCUtil.rollBackTransaction(connection);
throw new RuntimeException(e);
} finally {
JDBCUtil.closeConnection(null, preparedStatement, connection);
}
}
public int updateDelete(Integer id){
Connection connection = null;
PreparedStatement preparedStatement = null;
try {
connection = JDBCUtil.getConnection();
JDBCUtil.beginTransaction(connection);
preparedStatement = connection.prepareStatement("UPDATE `testdb`.`flight` SET `is_delete` = ? WHERE `id` = ?;");
preparedStatement.setInt(1,1);
preparedStatement.setInt(2,id);
Integer result = preparedStatement.executeUpdate();
JDBCUtil.commitTransaction(connection);
return result;
} catch (SQLException e) {
JDBCUtil.rollBackTransaction(connection);
throw new RuntimeException(e);
} finally {
JDBCUtil.closeConnection(null, preparedStatement, connection);
}
}
}