jsp通过jdbc连接mysql数据库

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

<%
    // 定义MySQL数据库连接信息
    String url = "jdbc:mysql://localhost:3306/mydatabase";
    String username = "root";
    String password = "mypassword";

    Connection connection = null;
    Statement statement = null;
    ResultSet resultSet = null;

    try {
        // 加载MySQL驱动
        Class.forName("com.mysql.jdbc.Driver");
        
        // 建立数据库连接
        connection = DriverManager.getConnection(url, username, password);
        
        // 创建Statement对象
        statement = connection.createStatement();
        
        // 执行SQL查询语句
        resultSet = statement.executeQuery("SELECT * FROM mytable");
        
        // 处理查询结果
        while(resultSet.next()) {
            // 获取数据
            String name = resultSet.getString("name");
            int age = resultSet.getInt("age");
            
            // 输出数据
            out.println("Name: " + name + ", Age: " + age + "<br>");
        }
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        // 关闭数据库连接和相关资源
        try {
            if(resultSet != null) resultSet.close();
            if(statement != null) statement.close();
            if(connection != null) connection.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
%>