BaseDao[通俗易懂]

package main.com.lift;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.Statement;

public class BaseDao {
    public Connection getConnect(){
        Connection connection=null;
        try{
            Class.forName("org.postgresql.Driver");
            connection= DriverManager.getConnection("jdbc:postgresql://127.0.0.1:5432","postgres","postgres");

        }catch (Exception e){
            e.printStackTrace();
        }
        return connection;
    }

    public void save(String storeycombin,double sumtime){
        Statement statement=null;
        for(int i=0;i<1;i++){
            String sql="insert into lifttest(storeycombin,sumtime)value(?,?)";
            try{
                PreparedStatement preparedStatement=getConnect().prepareStatement(sql);
                preparedStatement.setString(1,storeycombin);
                preparedStatement.setDouble(2,sumtime);
                preparedStatement.execute();
                preparedStatement.close();
            }catch (Exception e){
                e.printStackTrace();
            }

        }
    }
}