jsp网站连接数据库

<%@ page import="java.sql.*" %>
<%
    String url = "jdbc:mysql://localhost:3306/mydatabase";
    String username = "root";
    String password = "password";
    Connection conn = null;
    Statement stmt = null;
    ResultSet rs = null;
    try {
        // 加载JDBC驱动
        Class.forName("com.mysql.jdbc.Driver");
        // 建立数据库连接
        conn = DriverManager.getConnection(url, username, password);
        // 创建Statement对象
        stmt = conn.createStatement();
        // 执行SQL查询
        rs = stmt.executeQuery("SELECT * FROM users");
        // 处理查询结果
        while (rs.next()) {
            out.println(rs.getString("username"));
        }
    } catch (ClassNotFoundException | SQLException e) {
        e.printStackTrace();
    } finally {
        // 关闭资源
        try {
            if (rs != null) rs.close();
            if (stmt != null) stmt.close();
            if (conn != null) conn.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
%>