web中jdbc连接mysql数据库

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;

public class MySQLExample {
    public static void main(String[] args) {
        // 导入JDBC驱动程序
        try {
            Class.forName("com.mysql.jdbc.Driver");
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }

        // 建立数据库连接
        try (Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/mydatabase", "username", "password")) {
            // 执行SQL语句
            Statement stmt = conn.createStatement();
            String sql = "SELECT * FROM users";
            ResultSet rs = stmt.executeQuery(sql);

            // 处理结果集
            while (rs.next()) {
                int id = rs.getInt("id");
                String name = rs.getString("name");
                System.out.println("ID: " + id + ", Name: " + name);
            }

            // 关闭连接
            rs.close();
            stmt.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}