使用jsp页面从数据库中删除数据

<%@ page import="java.sql.*" %>
<%
    // 建立数据库连接
    String url = "jdbc:mysql://localhost:3306/mydatabase";
    String username = "root";
    String password = "password";
    Connection conn = null;
    try {
        Class.forName("com.mysql.jdbc.Driver");
        conn = DriverManager.getConnection(url, username, password);

        // 编写SQL语句
        String sql = "DELETE FROM mytable WHERE id = ?";

        // 创建PreparedStatement对象
        PreparedStatement pstmt = conn.prepareStatement(sql);

        // 设置参数
        pstmt.setInt(1, 1); // 假设要删除id为1的数据

        // 执行SQL语句
        int rowsAffected = pstmt.executeUpdate();

        // 关闭PreparedStatement对象
        pstmt.close();

        // 输出删除的行数
        out.println("Deleted " + rowsAffected + " row(s).");
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        // 关闭数据库连接
        if (conn != null) {
            try {
                conn.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
    }
%>