在jsp中使用mysql数据库

<%@ page import="java.sql.*" %>

<%
    Connection conn = null;
    String url = "jdbc:mysql://localhost:3306/mydatabase";
    String username = "root";
    String password = "password";

    try {
        Class.forName("com.mysql.jdbc.Driver");
        conn = DriverManager.getConnection(url, username, password);

        // 执行数据库操作...

    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (conn != null) {
            try {
                conn.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
    }
%>

<%
    Statement stmt = null;
    ResultSet rs = null;

    try {
        stmt = conn.createStatement();
        String sql = "SELECT * FROM mytable";
        rs = stmt.executeQuery(sql);

        while (rs.next()) {
            int id = rs.getInt("id");
            String name = rs.getString("name");
            // 处理查询结果...
        }
    } catch (SQLException e) {
        e.printStackTrace();
    } finally {
        if (rs != null) {
            try {
                rs.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
        if (stmt != null) {
            try {
                stmt.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
    }
%>