Java-比较文本框中的数据和sql记录

Question

几乎为游戏编写了一个启动器，我需要从用户名文本框和密码文本框中获取文本，然后从 mysql 服务器获取数据。这是我到目前为止所拥有的。有关如何执行此操作的任何帮助或示例？

public class SQLCheck {

    public java.sql.Connection con;
    public void connect(){
        String host = "sttfz";
        String username = "roiot";
        String pass = "yourmother";
        String db = "users";

        try{
            Class.forName("com.mysql.jdbc.Driver");
            String connectionUrl = "jdbc:mysql://"+host+"/"+db+"?";
            con = (java.sql.Connection) DriverManager.getConnection(connectionUrl,username,pass);
            System.out.println("Server: Connected to MYSQL");
        } catch(SQLException e){
            System.out.println("Server: SQL EXECEPTION: " + e.toString());
        } catch (ClassNotFoundException cE){
            System.out.println("Server: Class not found: " + cE.toString());
        }
    }
    boolean checkLogin(String userName, String password) throws SQLException{
        boolean correct = false;

        Statement s = con.createStatement();
        s.executeQuery("SELECT Username, Password, Banned, Activated FROM Users");
        ResultSet rs = s.getResultSet();

        return correct;
    }
}

Answer 1

快到了。查看官方 JDBC 教程，您就会知道下一步该做什么立即（提示：从结果集中获取值）