90f63d9df1
- 添加环境配置文件 .env.example 包含数据库、JWT、CORS等配置 - 创建 .gitignore 文件忽略敏感文件和临时文件 - 配置 Apache 重写规则支持路由转发 - 实现 JWT 认证中间件提供用户身份验证功能 - 添加 MySQL 数据库初始化脚本包含分组、图片、笔记表结构
50 lines
1.0 KiB
PHP
50 lines
1.0 KiB
PHP
<?php
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namespace App\Utils;
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use PDO;
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use PDOException;
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class Database
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{
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private static $instance = null;
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private $connection;
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private function __construct()
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{
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$config = require __DIR__ . '/../../config/database.php';
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$dsn = sprintf(
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"mysql:host=%s;port=%s;dbname=%s;charset=%s",
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$config['host'],
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$config['port'],
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$config['database'],
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$config['charset']
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);
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try {
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$this->connection = new PDO(
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$dsn,
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$config['username'],
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$config['password'],
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$config['options']
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);
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} catch (PDOException $e) {
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throw new \Exception("数据库连接失败: " . $e->getMessage());
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}
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}
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public static function getInstance()
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{
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if (self::$instance === null) {
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self::$instance = new self();
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}
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return self::$instance;
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}
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public function getConnection()
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{
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return $this->connection;
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}
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}
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