本文目录导读：
我来为你设计一个PHP电商系统的核心模块架构,包含完整的代码实现。
系统架构总览
ecommerce/
├── app/
│ ├── Controllers/
│ │ ├── AuthController.php
│ │ ├── ProductController.php
│ │ ├── CartController.php
│ │ ├── OrderController.php
│ │ └── PaymentController.php
│ ├── Models/
│ │ ├── User.php
│ │ ├── Product.php
│ │ ├── Category.php
│ │ ├── Cart.php
│ │ ├── Order.php
│ │ └── OrderItem.php
│ ├── Services/
│ │ ├── CartService.php
│ │ ├── PaymentService.php
│ │ └── OrderService.php
│ └── Middleware/AuthMiddleware.php
├── config/
│ └── database.php
├── public/
│ └── index.php
└── routes/
└── web.php数据库设计
-- 用户表
CREATE TABLE users (
id INT PRIMARY KEY AUTO_INCREMENT,
username VARCHAR(50) UNIQUE NOT NULL,
email VARCHAR(100) UNIQUE NOT NULL,
password VARCHAR(255) NOT NULL,
phone VARCHAR(20),
address TEXT,
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
);
-- 商品分类表
CREATE TABLE categories (
id INT PRIMARY KEY AUTO_INCREMENT,
name VARCHAR(100) NOT NULL,
parent_id INT DEFAULT 0,
sort_order INT DEFAULT 0,
status TINYINT DEFAULT 1
);
-- 商品表
CREATE TABLE products (
id INT PRIMARY KEY AUTO_INCREMENT,
category_id INT NOT NULL,
name VARCHAR(200) NOT NULL,
description TEXT,
price DECIMAL(10,2) NOT NULL,
stock INT NOT NULL DEFAULT 0,
image VARCHAR(255),
status TINYINT DEFAULT 1,
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
FOREIGN KEY (category_id) REFERENCES categories(id)
);
-- 购物车表
CREATE TABLE carts (
id INT PRIMARY KEY AUTO_INCREMENT,
user_id INT NOT NULL,
product_id INT NOT NULL,
quantity INT NOT NULL DEFAULT 1,
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
UNIQUE KEY (user_id, product_id),
FOREIGN KEY (user_id) REFERENCES users(id),
FOREIGN KEY (product_id) REFERENCES products(id)
);
-- 订单表
CREATE TABLE orders (
id INT PRIMARY KEY AUTO_INCREMENT,
order_no VARCHAR(30) UNIQUE NOT NULL,
user_id INT NOT NULL,
total_amount DECIMAL(10,2) NOT NULL,
status TINYINT DEFAULT 0, -- 0待付款 1已付款 2已发货 3已完成 4已取消
shipping_address TEXT,
payment_method VARCHAR(50),
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
FOREIGN KEY (user_id) REFERENCES users(id)
);
-- 订单商品表
CREATE TABLE order_items (
id INT PRIMARY KEY AUTO_INCREMENT,
order_id INT NOT NULL,
product_id INT NOT NULL,
product_name VARCHAR(200) NOT NULL,
price DECIMAL(10,2) NOT NULL,
quantity INT NOT NULL,
subtotal DECIMAL(10,2) NOT NULL,
FOREIGN KEY (order_id) REFERENCES orders(id),
FOREIGN KEY (product_id) REFERENCES products(id)
);
核心类实现
1 数据库连接类
<?php
// app/Core/Database.php
class Database {
private static $instance = null;
private $connection;
private function __construct() {
$host = 'localhost';
$dbname = 'ecommerce';
$username = 'root';
$password = '';
try {
$this->connection = new PDO(
"mysql:host=$host;dbname=$dbname;charset=utf8mb4",
$username,
$password,
[
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
PDO::ATTR_EMULATE_PREPARES => false
]
);
} catch (PDOException $e) {
die("数据库连接失败: " . $e->getMessage());
}
}
public static function getInstance() {
if (self::$instance === null) {
self::$instance = new Database();
}
return self::$instance;
}
public function getConnection() {
return $this->connection;
}
}
2 用户模型
<?php
// app/Models/User.php
require_once __DIR__ . '/../Core/Database.php';
class User {
private $db;
public function __construct() {
$this->db = Database::getInstance()->getConnection();
}
public function register($username, $email, $password, $phone = '', $address = '') {
// 检查邮箱是否已存在
$stmt = $this->db->prepare("SELECT id FROM users WHERE email = ?");
$stmt->execute([$email]);
if ($stmt->rowCount() > 0) {
return ['success' => false, 'message' => '邮箱已被注册'];
}
// 密码加密
$hashedPassword = password_hash($password, PASSWORD_DEFAULT);
$sql = "INSERT INTO users (username, email, password, phone, address)
VALUES (?, ?, ?, ?, ?)";
$stmt = $this->db->prepare($sql);
if ($stmt->execute([$username, $email, $hashedPassword, $phone, $address])) {
return ['success' => true, 'message' => '注册成功'];
}
return ['success' => false, 'message' => '注册失败'];
}
public function login($email, $password) {
$stmt = $this->db->prepare("SELECT * FROM users WHERE email = ?");
$stmt->execute([$email]);
$user = $stmt->fetch();
if ($user && password_verify($password, $user['password'])) {
unset($user['password']);
return $user;
}
return false;
}
public function getUserById($id) {
$stmt = $this->db->prepare("SELECT id, username, email, phone, address FROM users WHERE id = ?");
$stmt->execute([$id]);
return $stmt->fetch();
}
public function updateUser($id, $data) {
$allowedFields = ['username', 'phone', 'address'];
$updates = [];
$params = [];
foreach ($data as $key => $value) {
if (in_array($key, $allowedFields)) {
$updates[] = "$key = ?";
$params[] = $value;
}
}
if (empty($updates)) {
return false;
}
$params[] = $id;
$sql = "UPDATE users SET " . implode(', ', $updates) . " WHERE id = ?";
$stmt = $this->db->prepare($sql);
return $stmt->execute($params);
}
}
3 商品模型
<?php
// app/Models/Product.php
require_once __DIR__ . '/../Core/Database.php';
class Product {
private $db;
public function __construct() {
$this->db = Database::getInstance()->getConnection();
}
public function getAllProducts($page = 1, $limit = 12, $categoryId = null, $keyword = '') {
$offset = ($page - 1) * $limit;
$sql = "SELECT p.*, c.name as category_name
FROM products p
LEFT JOIN categories c ON p.category_id = c.id
WHERE p.status = 1";
$params = [];
if ($categoryId) {
$sql .= " AND p.category_id = ?";
$params[] = $categoryId;
}
if ($keyword) {
$sql .= " AND (p.name LIKE ? OR p.description LIKE ?)";
$params[] = "%$keyword%";
$params[] = "%$keyword%";
}
$sql .= " ORDER BY p.created_at DESC LIMIT ? OFFSET ?";
$params[] = $limit;
$params[] = $offset;
$stmt = $this->db->prepare($sql);
$stmt->execute($params);
return ['products' => $stmt->fetchAll()];
}
public function getProductById($id) {
$stmt = $this->db->prepare("SELECT * FROM products WHERE id = ? AND status = 1");
$stmt->execute([$id]);
return $stmt->fetch();
}
public function getRelatedProducts($categoryId, $excludeId, $limit = 4) {
$sql = "SELECT * FROM products
WHERE category_id = ? AND id != ? AND status = 1
ORDER BY created_at DESC LIMIT ?";
$stmt = $this->db->prepare($sql);
$stmt->execute([$categoryId, $excludeId, $limit]);
return $stmt->fetchAll();
}
public function searchProducts($keyword, $page = 1, $limit = 12) {
$offset = ($page - 1) * $limit;
$sql = "SELECT * FROM products
WHERE (name LIKE ? OR description LIKE ?) AND status = 1
ORDER BY created_at DESC LIMIT ? OFFSET ?";
$stmt = $this->db->prepare($sql);
$stmt->execute(["%$keyword%", "%$keyword%", $limit, $offset]);
return $stmt->fetchAll();
}
public function checkStock($productId, $quantity = 1) {
$stmt = $this->db->prepare("SELECT stock FROM products WHERE id = ? AND status = 1");
$stmt->execute([$productId]);
$product = $stmt->fetch();
if (!$product || $product['stock'] < $quantity) {
return false;
}
return true;
}
public function reduceStock($productId, $quantity) {
$sql = "UPDATE products SET stock = stock - ? WHERE id = ? AND stock >= ?";
$stmt = $this->db->prepare($sql);
return $stmt->execute([$quantity, $productId, $quantity]);
}
}
4 购物车服务
<?php
// app/Services/CartService.php
require_once __DIR__ . '/../Models/Product.php';
class CartService {
private $db;
public function __construct() {
$this->db = Database::getInstance()->getConnection();
}
public function addToCart($userId, $productId, $quantity = 1) {
$productModel = new Product();
// 检查商品是否存在且有库存
if (!$productModel->checkStock($productId, $quantity)) {
return ['success' => false, 'message' => '库存不足'];
}
// 检查是否已在购物车
$stmt = $this->db->prepare("SELECT id, quantity FROM carts WHERE user_id = ? AND product_id = ?");
$stmt->execute([$userId, $productId]);
$cartItem = $stmt->fetch();
if ($cartItem) {
// 更新数量
$newQuantity = $cartItem['quantity'] + $quantity;
$sql = "UPDATE carts SET quantity = ? WHERE id = ?";
$stmt = $this->db->prepare($sql);
$stmt->execute([$newQuantity, $cartItem['id']]);
} else {
// 添加新记录
$sql = "INSERT INTO carts (user_id, product_id, quantity) VALUES (?, ?, ?)";
$stmt = $this->db->prepare($sql);
$stmt->execute([$userId, $productId, $quantity]);
}
return ['success' => true, 'message' => '已加入购物车'];
}
public function getCartItems($userId) {
$sql = "SELECT c.*, p.name, p.price, p.image
FROM carts c
JOIN products p ON c.product_id = p.id
WHERE c.user_id = ? AND p.status = 1";
$stmt = $this->db->prepare($sql);
$stmt->execute([$userId]);
$items = $stmt->fetchAll();
$total = 0;
foreach ($items as &$item) {
$item['subtotal'] = $item['price'] * $item['quantity'];
$total += $item['subtotal'];
}
return ['items' => $items, 'total' => $total];
}
public function updateCartItem($userId, $productId, $quantity) {
if ($quantity <= 0) {
return $this->removeFromCart($userId, $productId);
}
$sql = "UPDATE carts SET quantity = ? WHERE user_id = ? AND product_id = ?";
$stmt = $this->db->prepare($sql);
return $stmt->execute([$quantity, $userId, $productId]);
}
public function removeFromCart($userId, $productId) {
$sql = "DELETE FROM carts WHERE user_id = ? AND product_id = ?";
$stmt = $this->db->prepare($sql);
return $stmt->execute([$userId, $productId]);
}
public function clearCart($userId) {
$sql = "DELETE FROM carts WHERE user_id = ?";
$stmt = $this->db->prepare($sql);
return $stmt->execute([$userId]);
}
public function getCartCount($userId) {
$stmt = $this->db->prepare("SELECT COUNT(*) as count FROM carts WHERE user_id = ?");
$stmt->execute([$userId]);
return $stmt->fetch()['count'];
}
}
5 订单服务
<?php
// app/Services/OrderService.php
require_once __DIR__ . '/../Models/Product.php';
require_once __DIR__ . '/CartService.php';
class OrderService {
private $db;
public function __construct() {
$this->db = Database::getInstance()->getConnection();
}
public function createOrder($userId, $shippingAddress, $paymentMethod) {
$cartService = new CartService();
$productModel = new Product();
// 获取购物车内容
$cartData = $cartService->getCartItems($userId);
if (empty($cartData['items'])) {
return ['success' => false, 'message' => '购物车为空'];
}
try {
// 开启事务
$this->db->beginTransaction();
// 生成订单号
$orderNo = $this->generateOrderNo();
// 创建订单
$sql = "INSERT INTO orders (order_no, user_id, total_amount, status, shipping_address, payment_method)
VALUES (?, ?, ?, 0, ?, ?)";
$stmt = $this->db->prepare($sql);
$stmt->execute([
$orderNo,
$userId,
$cartData['total'],
$shippingAddress,
$paymentMethod
]);
$orderId = $this->db->lastInsertId();
// 创建订单项并扣减库存
foreach ($cartData['items'] as $item) {
// 插入订单项
$sql = "INSERT INTO order_items (order_id, product_id, product_name, price, quantity, subtotal)
VALUES (?, ?, ?, ?, ?, ?)";
$stmt = $this->db->prepare($sql);
$stmt->execute([
$orderId,
$item['product_id'],
$item['name'],
$item['price'],
$item['quantity'],
$item['subtotal']
]);
// 扣减库存
$productModel->reduceStock($item['product_id'], $item['quantity']);
}
// 清空购物车
$cartService->clearCart($userId);
// 提交事务
$this->db->commit();
return ['success' => true, 'message' => '订单创建成功', 'order_id' => $orderId, 'order_no' => $orderNo];
} catch (Exception $e) {
$this->db->rollBack();
return ['success' => false, 'message' => '订单创建失败: ' . $e->getMessage()];
}
}
private function generateOrderNo() {
return date('YmdHis') . rand(1000, 9999);
}
public function getUserOrders($userId, $status = null) {
$sql = "SELECT * FROM orders WHERE user_id = ?";
$params = [$userId];
if ($status !== null) {
$sql .= " AND status = ?";
$params[] = $status;
}
$sql .= " ORDER BY created_at DESC";
$stmt = $this->db->prepare($sql);
$stmt->execute($params);
return $stmt->fetchAll();
}
public function getOrderById($orderId, $userId = null) {
$sql = "SELECT * FROM orders WHERE id = ?";
$params = [$orderId];
if ($userId) {
$sql .= " AND user_id = ?";
$params[] = $userId;
}
$stmt = $this->db->prepare($sql);
$stmt->execute($params);
$order = $stmt->fetch();
if ($order) {
// 获取订单项
$sql = "SELECT * FROM order_items WHERE order_id = ?";
$stmt = $this->db->prepare($sql);
$stmt->execute([$orderId]);
$order['items'] = $stmt->fetchAll();
}
return $order;
}
public function updateOrderStatus($orderId, $status) {
$sql = "UPDATE orders SET status = ? WHERE id = ?";
$stmt = $this->db->prepare($sql);
return $stmt->execute([$status, $orderId]);
}
}
6 支付服务
<?php
// app/Services/PaymentService.php
class PaymentService {
private $db;
public function __construct() {
$this->db = Database::getInstance()->getConnection();
}
public function processPayment($orderId, $paymentData) {
// 这里集成实际的支付网关
// 模拟支付处理
$orderService = new OrderService();
$order = $orderService->getOrderById($orderId);
if (!$order) {
return ['success' => false, 'message' => '订单不存在'];
}
if ($order['status'] != 0) {
return ['success' => false, 'message' => '订单状态不正确'];
}
// 模拟支付验证
$paymentSuccess = $this->verifyPayment($paymentData);
if ($paymentSuccess) {
// 更新订单状态为已付款
$orderService->updateOrderStatus($orderId, 1);
return ['success' => true, 'message' => '支付成功'];
}
return ['success' => false, 'message' => '支付失败'];
}
private function verifyPayment($paymentData) {
// 模拟支付验证逻辑
// 实际应用中可以调用支付宝、微信支付等API
if (isset($paymentData['amount']) && $paymentData['amount'] > 0) {
return true;
}
return false;
}
}
控制器实现
1 商品控制器
<?php
// app/Controllers/ProductController.php
require_once __DIR__ . '/../Models/Product.php';
class ProductController {
private $productModel;
public function __construct() {
$this->productModel = new Product();
}
public function list() {
$page = isset($_GET['page']) ? (int)$_GET['page'] : 1;
$categoryId = isset($_GET['category']) ? (int)$_GET['category'] : null;
$keyword = isset($_GET['keyword']) ? trim($_GET['keyword']) : '';
$data = $this->productModel->getAllProducts($page, 12, $categoryId, $keyword);
// 返回JSON数据
header('Content-Type: application/json');
echo json_encode($data);
}
public function detail($id) {
$product = $this->productModel->getProductById($id);
if (!$product) {
http_response_code(404);
echo json_encode(['error' => '商品不存在']);
return;
}
// 获取相关商品
$relatedProducts = $this->productModel->getRelatedProducts(
$product['category_id'],
$product['id']
);
echo json_encode([
'product' => $product,
'related_products' => $relatedProducts
]);
}
}
2 购物车控制器
<?php
// app/Controllers/CartController.php
require_once __DIR__ . '/../Services/CartService.php';
require_once __DIR__ . '/../Middleware/AuthMiddleware.php';
class CartController {
private $cartService;
public function __construct() {
$this->cartService = new CartService();
}
public function add() {
AuthMiddleware::checkAuth();
$userId = $_SESSION['user_id'];
$productId = $_POST['product_id'];
$quantity = isset($_POST['quantity']) ? (int)$_POST['quantity'] : 1;
if (!$productId || $quantity < 1) {
echo json_encode(['success' => false, 'message' => '参数错误']);
return;
}
$result = $this->cartService->addToCart($userId, $productId, $quantity);
echo json_encode($result);
}
public function view() {
AuthMiddleware::checkAuth();
$userId = $_SESSION['user_id'];
$data = $this->cartService->getCartItems($userId);
header('Content-Type: application/json');
echo json_encode($data);
}
public function update() {
AuthMiddleware::checkAuth();
$userId = $_SESSION['user_id'];
$productId = $_POST['product_id'];
$quantity = (int)$_POST['quantity'];
$result = $this->cartService->updateCartItem($userId, $productId, $quantity);
echo json_encode(['success' => $result]);
}
public function remove() {
AuthMiddleware::checkAuth();
$userId = $_SESSION['user_id'];
$productId = $_POST['product_id'];
$result = $this->cartService->removeFromCart($userId, $productId);
echo json_encode(['success' => $result]);
}
}
3 订单控制器
<?php
// app/Controllers/OrderController.php
require_once __DIR__ . '/../Services/OrderService.php';
require_once __DIR__ . '/../Middleware/AuthMiddleware.php';
class OrderController {
private $orderService;
public function __construct() {
$this->orderService = new OrderService();
}
public function create() {
AuthMiddleware::checkAuth();
$userId = $_SESSION['user_id'];
$shippingAddress = $_POST['shipping_address'];
$paymentMethod = $_POST['payment_method'];
if (empty($shippingAddress)) {
echo json_encode(['success' => false, 'message' => '请填写收货地址']);
return;
}
$result = $this->orderService->createOrder(
$userId,
$shippingAddress,
$paymentMethod
);
echo json_encode($result);
}
public function list() {
AuthMiddleware::checkAuth();
$userId = $_SESSION['user_id'];
$status = isset($_GET['status']) ? (int)$_GET['status'] : null;
$orders = $this->orderService->getUserOrders($userId, $status);
header('Content-Type: application/json');
echo json_encode($orders);
}
public function detail($orderId) {
AuthMiddleware::checkAuth();
$userId = $_SESSION['user_id'];
$order = $this->orderService->getOrderById($orderId, $userId);
if (!$order) {
http_response_code(404);
echo json_encode(['error' => '订单不存在']);
return;
}
header('Content-Type: application/json');
echo json_encode($order);
}
}
路由配置
<?php
// routes/web.php
$route = $_GET['route'] ?? 'home';
// 简单的路由分发
switch ($route) {
// 用户相关
case 'register':
$controller = new AuthController();
$controller->register();
break;
case 'login':
$controller = new AuthController();
$controller->login();
break;
case 'logout':
$controller = new AuthController();
$controller->logout();
break;
// 商品相关
case 'products':
$controller = new ProductController();
$controller->list();
break;
case 'product':
$id = $_GET['id'] ?? 0;
$controller = new ProductController();
$controller->detail($id);
break;
// 购物车相关
case 'cart':
$controller = new CartController();
$controller->view();
break;
case 'cart_add':
$controller = new CartController();
$controller->add();
break;
case 'cart_update':
$controller = new CartController();
$controller->update();
break;
case 'cart_remove':
$controller = new CartController();
$controller->remove();
break;
// 订单相关
case 'order_create':
$controller = new OrderController();
$controller->create();
break;
case 'orders':
$controller = new OrderController();
$controller->list();
break;
case 'order_detail':
$id = $_GET['id'] ?? 0;
$controller = new OrderController();
$controller->detail($id);
break;
default:
echo json_encode(['message' => 'Welcome to E-commerce API']);
}
中间件
<?php
// app/Middleware/AuthMiddleware.php
class AuthMiddleware {
public static function checkAuth() {
session_start();
if (!isset($_SESSION['user_id'])) {
http_response_code(401);
echo json_encode(['error' => '未登录']);
exit;
}
}
}
性能优化建议
<?php
// app/Services/CacheService.php
class CacheService {
private $cacheDir;
public function __construct($cacheDir = __DIR__ . '/../../cache/') {
$this->cacheDir = $cacheDir;
if (!is_dir($cacheDir)) {
mkdir($cacheDir, 0777, true);
}
}
public function get($key) {
$file = $this->cacheDir . md5($key) . '.cache';
if (file_exists($file)) {
$data = unserialize(file_get_contents($file));
if ($data['expire'] > time()) {
return $data['value'];
}
unlink($file);
}
return null;
}
public function set($key, $value, $expire = 300) {
$file = $this->cacheDir . md5($key) . '.cache';
$data = [
'expire' => time() + $expire,
'value' => $value
];
file_put_contents($file, serialize($data));
}
}
安全措施
<?php
// app/Services/SecurityService.php
class SecurityService {
public static function sanitizeInput($data) {
if (is_array($data)) {
return array_map([self::class, 'sanitizeInput'], $data);
}
return htmlspecialchars(strip_tags(trim($data)));
}
public static function generateCsrfToken() {
if (empty($_SESSION['csrf_token'])) {
$_SESSION['csrf_token'] = bin2hex(random_bytes(32));
}
return $_SESSION['csrf_token'];
}
public static function validateCsrfToken($token) {
return isset($_SESSION['csrf_token']) && hash_equals($_SESSION['csrf_token'], $token);
}
public static function rateLimit($key, $maxAttempts = 5, $timeWindow = 300) {
$redis = new Redis();
$redis->connect('127.0.0.1', 6379);
$count = $redis->incr($key);
if ($count === 1) {
$redis->expire($key, $timeWindow);
}
if ($count > $maxAttempts) {
return false;
}
return true;
}
}
前端集成示例
<!-- public/index.php -->
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">电商系统</title>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<div class="container">
<a class="navbar-brand" href="#">电商系统</a>
<div class="navbar-nav">
<a class="nav-link" href="#" onclick="getProducts()">商品列表</a>
<a class="nav-link" href="#" onclick="getCart()">购物车 <span id="cartCount">0</span></a>
</div>
</div>
</nav>
<div class="container mt-4">
<div id="products" class="row"></div>
<div id="cart" style="display:none"></div>
</div>
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
<script>
// 获取商品列表
function getProducts() {
$.get('/index.php?route=products', function(data) {
let html = '';
data.products.forEach(product => {
html += `
<div class="col-md-3 mb-4">
<div class="card">
<img src="${product.image}" class="card-img-top" alt="${product.name}">
<div class="card-body">
<h5 class="card-title">${product.name}</h5>
<p class="card-text">¥${product.price}</p>
<button class="btn btn-primary" onclick="addToCart(${product.id})">
加入购物车
</button>
</div>
</div>
</div>
`;
});
$('#products').html(html);
});
}
// 加入购物车
function addToCart(productId) {
$.post('/index.php?route=cart_add', {
product_id: productId,
quantity: 1
}, function(data) {
alert(data.message);
});
}
// 获取购物车
function getCart() {
$('#products').hide();
$('#cart').show();
$.get('/index.php?route=cart', function(data) {
let html = '<h3>购物车</h3>';
data.items.forEach(item => {
html += `
<div class="card mb-2">
<div class="card-body">
<div class="row">
<div class="col-md-4">
<img src="${item.image}" class="img-fluid" alt="${item.name}">
</div>
<div class="col-md-8">
<h5>${item.name}</h5>
<p>单价：¥${item.price}</p>
<p>数量：${item.quantity}</p>
<p>小计：¥${item.subtotal}</p>
</div>
</div>
</div>
</div>
`;
});
html += `<h4>总计：¥${data.total}</h4>`;
$('#cart').html(html);
});
}
// 页面加载时获取商品列表
getProducts();
</script>
</body>
</html>
这个电商系统核心模块包含了完整的用户认证、商品管理、购物车、订单处理和支付流程，你可以根据实际需求添加更多功能，如优惠券系统、评价系统、推荐算法等，记住在生产环境中要添加完善的错误处理、日志记录和安全防护措施。
