import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.sql.*;
import java.util.Arrays;
import java.util.Properties;

/**
 * 演示select语句返回ResultSet，并取出结果
 */
@SuppressWarnings({"all"})
public class ResultSet_ {
    public static void main(String[] args) throws Exception {
        //通过Properties对象获取配置文件的信息
        Properties properties = new Properties();
        properties.load(new FileInputStream("src/mysql.properties"));
        //读取相关的值
        String driver = properties.getProperty("driver");
        String url = properties.getProperty("url");
        String user = properties.getProperty("user");
        String password = properties.getProperty("password");

        //1.注册驱动
        Class.forName(driver);

        //2.得到连接
        Connection connection = DriverManager.getConnection(url, user, password);

        //3.得到Statement
        Statement statement = connection.createStatement();

        //4.组织sql
        String sql = "select id, name, sex, borndate from actor";
        //执行给定的sql语句，该语句返回单个ResultSet对象
        ResultSet resultSet = statement.executeQuery(sql);

        //5.使用while取出数据
        while (resultSet.next()) {   //让光标向后移动，如果没有更多行，则返回false
            int id = resultSet.getInt(1);  //获取该行的第1列
            String name = resultSet.getString(2);  //第2行
            String sex = resultSet.getString(3);
            Date borndate = resultSet.getDate(4);
            System.out.println(id + "\t" + name + "\t" + sex + "\t" + borndate + "\t");
        }

        //6.关闭连接
        resultSet.close();
        statement.close();
        connection.close();
    }
}