package db;

import java.sql.*;

public class dbTest {

    public static void main(String[] args) {
        try {

            Class.forName("com.mysql.jdbc.Driver");
        } catch ( ClassNotFoundException e ) {
            System.out.println("找不到mysql 驱动");
            e.printStackTrace();
        }

        String url = "jdbc:mysql://172.28.50.248:3316/toonstore";
        Connection conn;
        try {
            conn = DriverManager.getConnection(url, "docker", "1234");
            Statement stmt = conn.createStatement() ;


            System.out.println("数据库连接成功");

            String sql = "select * from user";    //要执行的SQL
            ResultSet rs = stmt.executeQuery(sql);//创建数据对象
            System.out.println("编号"+"\t"+"姓名"+"\t");
            while (rs.next()){
                System.out.print(rs.getInt(1) + "\t");
                System.out.print(rs.getString(3) + "\t");
                System.out.println();
            }
            rs.close();
            stmt.close();
            conn.close();

        } catch ( SQLException e ) {
            System.out.println(e);
            e.printStackTrace();
        }
    }
}

  运行结果