结对作业（地铁项目）02

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后端2

package User;

import java.sql.*;

public class subway {
    private String station_id, line_name, station_name, next_station,direction;

    public String getStation_id() {
        return station_id;
    }

    public void setStation_id(String station_id) {
        this.station_id = station_id;
    }

    public String getLine_name() {
        return line_name;
    }

    public void setLine_name(String line_name) {
        this.line_name = line_name;
    }

    public String getStation_name() {
        return station_name;
    }

    public void setStation_name(String station_name) {
        this.station_name = station_name;
    }

    public String getNext_station() {
        return next_station;
    }

    public void setNext_station(String next_station) {
        this.next_station = next_station;
    }

    public String getDirection() {
        return direction;
    }

    public void setDirection(String direction) {
        this.direction = direction;
    }

    public Connection getConnection()//连接数据库
    {
        try {
            Class.forName("com.mysql.jdbc.Driver");
            System.out.println("加载驱动成功");
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }
        String user = "root";
        String password = "123456";
        String url = "jdbc:mysql://localhost:3306/user?characterEncoding=utf8&useSSL=false&serverTimezone=UTC&rewriteBatchedStatements=true";
        Connection con = null;
        try {
            con = DriverManager.getConnection(url, user, password);
            System.out.println("数据库连接成功");
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return con;
    }

    //**********************************************************************
    //关闭方法
    public void close(Connection con) {
        try {
            if (con != null) {
                con.close();
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }

    public void close(PreparedStatement preparedStatement) {
        try {
            if (preparedStatement != null) {
                preparedStatement.close();
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }

    public void close(ResultSet resultSet) {
        try {
            if (resultSet != null) {
                resultSet.close();
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }

    public void select(String station_id, String line_name, String station_name,String  next_station,String direction) {
        Connection connection = getConnection();
        PreparedStatement preparedStatement = null;
        try {
            String sql = "select * from bj_subway";
            preparedStatement = connection.prepareStatement(sql);
            preparedStatement.executeUpdate();

        } catch (SQLException e) {
            e.printStackTrace();
        } finally {
            close(preparedStatement);
            close(connection);
        }

    }

    public static void main(String[] args)
    {
        //Data a=new Data();
    }

}