java 连mysql注册代码

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;

public class UserRegistration {
    // 数据库连接配置
    private static final String DB_URL = "jdbc:mysql://localhost:3306/mydatabase";
    private static final String USER = "username";
    private static final String PASS = "password";

    public static void registerUser(String username, String password) {
        Connection conn = null;
        PreparedStatement pstmt = null;

        try {
            // 加载并注册JDBC驱动
            Class.forName("com.mysql.cj.jdbc.Driver");

            // 建立数据库连接
            conn = DriverManager.getConnection(DB_URL, USER, PASS);

            // 准备SQL语句
            String sql = "INSERT INTO users (username, password) VALUES (?, ?)";
            pstmt = conn.prepareStatement(sql);
            pstmt.setString(1, username);
            pstmt.setString(2, password);

            // 执行SQL语句
            pstmt.executeUpdate();

            System.out.println("用户注册成功！");
        } catch (ClassNotFoundException e) {
            System.out.println("找不到JDBC驱动类！");
            e.printStackTrace();
        } catch (SQLException e) {
            System.out.println("数据库操作异常！");
            e.printStackTrace();
        } finally {
            // 关闭资源
            try {
                if (pstmt != null) pstmt.close();
                if (conn != null) conn.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
    }

    public static void main(String[] args) {
        registerUser("newuser", "newpassword");
    }
}