refactor: 重构数据库配置为SQLite开发环境并移除冗余文档

2025-09-21 15:16:48 +08:00
parent d207610009
commit 3c8648a635
259 changed files with 88239 additions and 8379 deletions
--- a/backend/api/database/create_tables.sql
+++ b/backend/api/database/create_tables.sql
@@ -0,0 +1,280 @@
+-- ======================================
+-- 锡林郭勒盟智慧养殖数字化管理平台数据库表结构
+-- ======================================
+
+-- 用户表
+CREATE TABLE IF NOT EXISTS users (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    username VARCHAR(50) NOT NULL UNIQUE,
+    phone VARCHAR(20) NOT NULL UNIQUE,
+    email VARCHAR(100) UNIQUE,
+    password_hash VARCHAR(255) NOT NULL,
+    salt VARCHAR(32) NOT NULL,
+    avatar VARCHAR(255),
+    real_name VARCHAR(50),
+    id_card VARCHAR(18),
+    gender INTEGER, -- 1-男，2-女
+    birthday DATE,
+    address VARCHAR(255),
+    status INTEGER NOT NULL DEFAULT 1, -- 0-禁用，1-正常
+    user_type VARCHAR(20) DEFAULT 'farmer', -- farmer, trader, consumer, finance, government
+    last_login_at DATETIME,
+    last_login_ip VARCHAR(45),
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    deleted_at DATETIME
+);
+
+-- 牛只表
+CREATE TABLE IF NOT EXISTS cattle (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    ear_tag VARCHAR(50) NOT NULL UNIQUE,
+    name VARCHAR(100),
+    breed VARCHAR(50) NOT NULL,
+    gender VARCHAR(10) NOT NULL, -- male, female
+    birth_date DATE,
+    color VARCHAR(50),
+    weight DECIMAL(8,2),
+    height DECIMAL(6,2),
+    health_status VARCHAR(20) DEFAULT 'healthy', -- healthy, sick, quarantine, dead
+    status VARCHAR(20) DEFAULT 'active', -- active, sold, dead, transferred
+    owner_id INTEGER NOT NULL,
+    farm_location VARCHAR(255),
+    parent_male_id INTEGER,
+    parent_female_id INTEGER,
+    vaccination_records TEXT, -- JSON格式
+    health_records TEXT, -- JSON格式
+    feeding_records TEXT, -- JSON格式
+    images TEXT, -- JSON格式的图片URLs
+    notes TEXT,
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY (owner_id) REFERENCES users(id),
+    FOREIGN KEY (parent_male_id) REFERENCES cattle(id),
+    FOREIGN KEY (parent_female_id) REFERENCES cattle(id)
+);
+
+-- 交易表
+CREATE TABLE IF NOT EXISTS transactions (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    transaction_no VARCHAR(50) NOT NULL UNIQUE,
+    buyer_id INTEGER NOT NULL,
+    seller_id INTEGER NOT NULL,
+    product_type VARCHAR(20) NOT NULL, -- cattle, product
+    product_id INTEGER NOT NULL,
+    quantity INTEGER NOT NULL DEFAULT 1,
+    unit_price DECIMAL(12,2) NOT NULL,
+    total_amount DECIMAL(12,2) NOT NULL,
+    currency VARCHAR(10) DEFAULT 'CNY',
+    status VARCHAR(20) DEFAULT 'pending', -- pending, confirmed, completed, cancelled
+    payment_status VARCHAR(20) DEFAULT 'pending', -- pending, paid, partial, refunded
+    payment_method VARCHAR(20), -- wechat_pay, alipay, bank_transfer, cash
+    delivery_status VARCHAR(20) DEFAULT 'pending', -- pending, shipped, delivered, received
+    delivery_method VARCHAR(20), -- self_pickup, express, logistics
+    delivery_address TEXT,
+    delivery_phone VARCHAR(20),
+    delivery_contact VARCHAR(50),
+    contract_url VARCHAR(255),
+    notes TEXT,
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY (buyer_id) REFERENCES users(id),
+    FOREIGN KEY (seller_id) REFERENCES users(id)
+);
+
+-- 商品表（牛肉商城）
+CREATE TABLE IF NOT EXISTS products (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    name VARCHAR(200) NOT NULL,
+    sku VARCHAR(50) UNIQUE,
+    category VARCHAR(50) NOT NULL, -- beef, dairy, snacks, processed, equipment, feed
+    subcategory VARCHAR(50),
+    description TEXT,
+    price DECIMAL(10,2) NOT NULL,
+    original_price DECIMAL(10,2),
+    cost_price DECIMAL(10,2),
+    currency VARCHAR(10) DEFAULT 'CNY',
+    stock INTEGER DEFAULT 0,
+    sales_count INTEGER DEFAULT 0,
+    weight DECIMAL(8,3),
+    dimensions VARCHAR(100),
+    shelf_life INTEGER, -- 保质期(天)
+    storage_conditions VARCHAR(200),
+    origin VARCHAR(100),
+    brand VARCHAR(100),
+    specifications TEXT, -- JSON格式的规格参数
+    images TEXT, -- JSON格式的图片URLs
+    video_url VARCHAR(255),
+    seller_id INTEGER NOT NULL,
+    status VARCHAR(20) DEFAULT 'pending_review', -- active, inactive, out_of_stock, pending_review, rejected
+    featured INTEGER DEFAULT 0,
+    rating DECIMAL(3,2) DEFAULT 0,
+    review_count INTEGER DEFAULT 0,
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY (seller_id) REFERENCES users(id)
+);
+
+-- 订单表
+CREATE TABLE IF NOT EXISTS orders (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    order_number VARCHAR(50) UNIQUE NOT NULL,
+    user_id INTEGER NOT NULL,
+    order_type VARCHAR(20) DEFAULT 'normal', -- normal, group_buy, presale, custom
+    total_amount DECIMAL(12,2) NOT NULL,
+    discount_amount DECIMAL(12,2) DEFAULT 0,
+    shipping_fee DECIMAL(10,2) DEFAULT 0,
+    tax_amount DECIMAL(10,2) DEFAULT 0,
+    final_amount DECIMAL(12,2) NOT NULL,
+    currency VARCHAR(10) DEFAULT 'CNY',
+    payment_method VARCHAR(20), -- wechat_pay, alipay, bank_transfer, cash_on_delivery
+    payment_status VARCHAR(20) DEFAULT 'pending', -- pending, paid, partial, refunded, failed
+    shipping_method VARCHAR(20), -- express, self_pickup, same_city
+    shipping_address TEXT,
+    shipping_phone VARCHAR(20),
+    shipping_name VARCHAR(50),
+    tracking_number VARCHAR(100),
+    status VARCHAR(20) DEFAULT 'pending_payment', -- pending_payment, paid, processing, shipping, delivered, completed, cancelled, refunded
+    coupon_code VARCHAR(50),
+    notes TEXT,
+    order_date DATETIME DEFAULT CURRENT_TIMESTAMP,
+    payment_date DATETIME,
+    shipping_date DATETIME,
+    delivery_date DATETIME,
+    completion_date DATETIME,
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY (user_id) REFERENCES users(id)
+);
+
+-- 订单商品表
+CREATE TABLE IF NOT EXISTS order_items (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    order_id INTEGER NOT NULL,
+    product_id INTEGER NOT NULL,
+    product_name VARCHAR(200) NOT NULL, -- 商品名称快照
+    product_sku VARCHAR(50),
+    product_image VARCHAR(255),
+    unit_price DECIMAL(10,2) NOT NULL,
+    quantity INTEGER NOT NULL,
+    total_price DECIMAL(12,2) NOT NULL,
+    currency VARCHAR(10) DEFAULT 'CNY',
+    specifications TEXT, -- JSON格式的规格参数快照
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY (order_id) REFERENCES orders(id) ON DELETE CASCADE,
+    FOREIGN KEY (product_id) REFERENCES products(id)
+);
+
+-- 金融服务表
+CREATE TABLE IF NOT EXISTS financial_services (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    service_type VARCHAR(20) NOT NULL, -- loan, insurance, investment
+    service_name VARCHAR(100) NOT NULL,
+    provider VARCHAR(100) NOT NULL,
+    description TEXT,
+    interest_rate DECIMAL(5,4), -- 利率
+    min_amount DECIMAL(12,2),
+    max_amount DECIMAL(12,2),
+    term_months INTEGER, -- 期限(月)
+    requirements TEXT, -- JSON格式的申请要求
+    documents_required TEXT, -- JSON格式的所需文档
+    status VARCHAR(20) DEFAULT 'active', -- active, inactive, suspended
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
+);
+
+-- 金融申请表
+CREATE TABLE IF NOT EXISTS financial_applications (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    application_no VARCHAR(50) NOT NULL UNIQUE,
+    user_id INTEGER NOT NULL,
+    service_id INTEGER NOT NULL,
+    application_type VARCHAR(20) NOT NULL, -- loan, insurance, investment
+    amount DECIMAL(12,2) NOT NULL,
+    term_months INTEGER,
+    purpose TEXT,
+    collateral_info TEXT, -- JSON格式的抵押物信息
+    documents TEXT, -- JSON格式的文档URLs
+    status VARCHAR(20) DEFAULT 'pending', -- pending, reviewing, approved, rejected, completed
+    reviewer_id INTEGER,
+    review_notes TEXT,
+    approval_date DATETIME,
+    disbursement_date DATETIME,
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY (user_id) REFERENCES users(id),
+    FOREIGN KEY (service_id) REFERENCES financial_services(id),
+    FOREIGN KEY (reviewer_id) REFERENCES users(id)
+);
+
+-- 政府监管记录表
+CREATE TABLE IF NOT EXISTS government_inspections (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    inspection_no VARCHAR(50) NOT NULL UNIQUE,
+    inspector_id INTEGER NOT NULL,
+    farm_id INTEGER NOT NULL,
+    inspection_type VARCHAR(20) NOT NULL, -- health, safety, environment, quality
+    inspection_date DATE NOT NULL,
+    status VARCHAR(20) DEFAULT 'scheduled', -- scheduled, in_progress, completed, cancelled
+    findings TEXT, -- JSON格式的检查结果
+    violations TEXT, -- JSON格式的违规记录
+    recommendations TEXT,
+    follow_up_required INTEGER DEFAULT 0, -- 0-否，1-是
+    follow_up_date DATE,
+    documents TEXT, -- JSON格式的文档URLs
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY (inspector_id) REFERENCES users(id),
+    FOREIGN KEY (farm_id) REFERENCES users(id)
+);
+
+-- 系统日志表
+CREATE TABLE IF NOT EXISTS system_logs (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    user_id INTEGER,
+    action VARCHAR(50) NOT NULL,
+    resource VARCHAR(50),
+    resource_id INTEGER,
+    ip_address VARCHAR(45),
+    user_agent TEXT,
+    request_data TEXT, -- JSON格式
+    response_data TEXT, -- JSON格式
+    status_code INTEGER,
+    execution_time INTEGER, -- 毫秒
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY (user_id) REFERENCES users(id)
+);
+
+-- 创建索引
+CREATE INDEX IF NOT EXISTS idx_users_phone ON users(phone);
+CREATE INDEX IF NOT EXISTS idx_users_status ON users(status);
+CREATE INDEX IF NOT EXISTS idx_users_user_type ON users(user_type);
+
+CREATE INDEX IF NOT EXISTS idx_cattle_ear_tag ON cattle(ear_tag);
+CREATE INDEX IF NOT EXISTS idx_cattle_owner_id ON cattle(owner_id);
+CREATE INDEX IF NOT EXISTS idx_cattle_status ON cattle(status);
+CREATE INDEX IF NOT EXISTS idx_cattle_breed ON cattle(breed);
+
+CREATE INDEX IF NOT EXISTS idx_transactions_buyer_id ON transactions(buyer_id);
+CREATE INDEX IF NOT EXISTS idx_transactions_seller_id ON transactions(seller_id);
+CREATE INDEX IF NOT EXISTS idx_transactions_status ON transactions(status);
+CREATE INDEX IF NOT EXISTS idx_transactions_created_at ON transactions(created_at);
+
+CREATE INDEX IF NOT EXISTS idx_products_category ON products(category);
+CREATE INDEX IF NOT EXISTS idx_products_seller_id ON products(seller_id);
+CREATE INDEX IF NOT EXISTS idx_products_status ON products(status);
+
+CREATE INDEX IF NOT EXISTS idx_orders_user_id ON orders(user_id);
+CREATE INDEX IF NOT EXISTS idx_orders_status ON orders(status);
+CREATE INDEX IF NOT EXISTS idx_orders_order_date ON orders(order_date);
+
+CREATE INDEX IF NOT EXISTS idx_financial_applications_user_id ON financial_applications(user_id);
+CREATE INDEX IF NOT EXISTS idx_financial_applications_status ON financial_applications(status);
+
+CREATE INDEX IF NOT EXISTS idx_government_inspections_inspector_id ON government_inspections(inspector_id);
+CREATE INDEX IF NOT EXISTS idx_government_inspections_farm_id ON government_inspections(farm_id);
+CREATE INDEX IF NOT EXISTS idx_government_inspections_inspection_date ON government_inspections(inspection_date);
+
+CREATE INDEX IF NOT EXISTS idx_system_logs_user_id ON system_logs(user_id);
+CREATE INDEX IF NOT EXISTS idx_system_logs_action ON system_logs(action);
+CREATE INDEX IF NOT EXISTS idx_system_logs_created_at ON system_logs(created_at);
--- a/backend/api/database/mall_tables.sql
+++ b/backend/api/database/mall_tables.sql
@@ -0,0 +1,217 @@
+-- ======================================
+-- 商城管理系统数据库表结构
+-- ======================================
+
+-- 商品分类表
+CREATE TABLE IF NOT EXISTS product_categories (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    name VARCHAR(50) NOT NULL,
+    parent_id INTEGER DEFAULT 0,
+    level INTEGER DEFAULT 1,
+    sort_order INTEGER DEFAULT 0,
+    image_url VARCHAR(255),
+    status INTEGER DEFAULT 1, -- 1-正常, 0-禁用
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
+);
+
+-- 商品表
+CREATE TABLE IF NOT EXISTS products (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    name VARCHAR(200) NOT NULL,
+    sku VARCHAR(50) UNIQUE,
+    category VARCHAR(50) NOT NULL, -- 'beef', 'dairy', 'snacks', 'processed', 'equipment', 'feed', 'other'
+    subcategory VARCHAR(50),
+    description TEXT,
+    price DECIMAL(10,2) NOT NULL,
+    original_price DECIMAL(10,2),
+    cost_price DECIMAL(10,2),
+    currency VARCHAR(10) DEFAULT 'CNY',
+    stock INTEGER DEFAULT 0,
+    sales_count INTEGER DEFAULT 0,
+    weight DECIMAL(8,3),
+    dimensions VARCHAR(100),
+    shelf_life INTEGER, -- 保质期(天)
+    storage_conditions VARCHAR(200),
+    origin VARCHAR(100),
+    brand VARCHAR(100),
+    specifications TEXT, -- JSON格式的规格参数
+    images TEXT, -- JSON格式的图片URLs
+    video_url VARCHAR(255),
+    seller_id INTEGER NOT NULL,
+    status VARCHAR(20) DEFAULT 'pending_review', -- 'active', 'inactive', 'out_of_stock', 'pending_review', 'rejected'
+    featured INTEGER DEFAULT 0,
+    rating DECIMAL(3,2) DEFAULT 0,
+    review_count INTEGER DEFAULT 0,
+    seo_title VARCHAR(200),
+    seo_description TEXT,
+    seo_keywords VARCHAR(500),
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY (seller_id) REFERENCES users(id)
+);
+
+-- 订单表
+CREATE TABLE IF NOT EXISTS orders (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    order_number VARCHAR(50) UNIQUE NOT NULL,
+    user_id INTEGER NOT NULL,
+    order_type VARCHAR(20) DEFAULT 'normal', -- 'normal', 'group_buy', 'presale', 'custom'
+    total_amount DECIMAL(12,2) NOT NULL,
+    discount_amount DECIMAL(12,2) DEFAULT 0,
+    shipping_fee DECIMAL(10,2) DEFAULT 0,
+    tax_amount DECIMAL(10,2) DEFAULT 0,
+    final_amount DECIMAL(12,2) NOT NULL,
+    currency VARCHAR(10) DEFAULT 'CNY',
+    payment_method VARCHAR(20), -- 'wechat_pay', 'alipay', 'bank_transfer', 'cash_on_delivery'
+    payment_status VARCHAR(20) DEFAULT 'pending', -- 'pending', 'paid', 'partial', 'refunded', 'failed'
+    shipping_method VARCHAR(20), -- 'express', 'self_pickup', 'same_city'
+    shipping_address TEXT,
+    shipping_phone VARCHAR(20),
+    shipping_name VARCHAR(50),
+    tracking_number VARCHAR(100),
+    status VARCHAR(20) DEFAULT 'pending_payment', -- 'pending_payment', 'paid', 'processing', 'shipping', 'delivered', 'completed', 'cancelled', 'refunded'
+    coupon_code VARCHAR(50),
+    notes TEXT,
+    order_date DATETIME DEFAULT CURRENT_TIMESTAMP,
+    payment_date DATETIME,
+    shipping_date DATETIME,
+    delivery_date DATETIME,
+    completion_date DATETIME,
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY (user_id) REFERENCES users(id)
+);
+
+-- 订单商品表
+CREATE TABLE IF NOT EXISTS order_items (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    order_id INTEGER NOT NULL,
+    product_id INTEGER NOT NULL,
+    product_name VARCHAR(200) NOT NULL, -- 商品名称快照
+    product_sku VARCHAR(50),
+    product_image VARCHAR(255),
+    unit_price DECIMAL(10,2) NOT NULL,
+    quantity INTEGER NOT NULL,
+    total_price DECIMAL(12,2) NOT NULL,
+    currency VARCHAR(10) DEFAULT 'CNY',
+    specifications TEXT, -- JSON格式的规格参数快照
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY (order_id) REFERENCES orders(id) ON DELETE CASCADE,
+    FOREIGN KEY (product_id) REFERENCES products(id)
+);
+
+-- 商品评价表
+CREATE TABLE IF NOT EXISTS product_reviews (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    product_id INTEGER NOT NULL,
+    order_id INTEGER NOT NULL,
+    user_id INTEGER NOT NULL,
+    rating INTEGER NOT NULL, -- 评分(1-5)
+    content TEXT,
+    images TEXT, -- JSON格式的评价图片URLs
+    helpful_count INTEGER DEFAULT 0,
+    reply_content TEXT, -- 商家回复
+    status VARCHAR(20) DEFAULT 'active', -- 'active', 'hidden', 'deleted'
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY (product_id) REFERENCES products(id) ON DELETE CASCADE,
+    FOREIGN KEY (order_id) REFERENCES orders(id) ON DELETE CASCADE,
+    FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
+);
+
+-- 购物车表
+CREATE TABLE IF NOT EXISTS shopping_cart (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    user_id INTEGER NOT NULL,
+    product_id INTEGER NOT NULL,
+    quantity INTEGER NOT NULL DEFAULT 1,
+    specifications TEXT, -- JSON格式的选择规格
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE,
+    FOREIGN KEY (product_id) REFERENCES products(id) ON DELETE CASCADE,
+    UNIQUE(user_id, product_id)
+);
+
+-- 优惠券表
+CREATE TABLE IF NOT EXISTS coupons (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    code VARCHAR(50) UNIQUE NOT NULL,
+    name VARCHAR(100) NOT NULL,
+    type VARCHAR(20) NOT NULL, -- 'fixed', 'percentage'
+    value DECIMAL(10,2) NOT NULL,
+    min_amount DECIMAL(10,2) DEFAULT 0, -- 最低消费金额
+    max_discount DECIMAL(10,2), -- 最大优惠金额(百分比优惠券)
+    usage_limit INTEGER DEFAULT 1, -- 使用次数限制
+    used_count INTEGER DEFAULT 0, -- 已使用次数
+    user_limit INTEGER DEFAULT 1, -- 每用户使用次数限制
+    start_date DATETIME,
+    end_date DATETIME,
+    status VARCHAR(20) DEFAULT 'active', -- 'active', 'inactive', 'expired'
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
+);
+
+-- 用户优惠券使用记录表
+CREATE TABLE IF NOT EXISTS user_coupon_usage (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    user_id INTEGER NOT NULL,
+    coupon_id INTEGER NOT NULL,
+    order_id INTEGER,
+    used_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE,
+    FOREIGN KEY (coupon_id) REFERENCES coupons(id) ON DELETE CASCADE,
+    FOREIGN KEY (order_id) REFERENCES orders(id) ON DELETE SET NULL
+);
+
+-- 创建索引
+CREATE INDEX IF NOT EXISTS idx_products_category ON products(category);
+CREATE INDEX IF NOT EXISTS idx_products_seller ON products(seller_id);
+CREATE INDEX IF NOT EXISTS idx_products_status ON products(status);
+CREATE INDEX IF NOT EXISTS idx_products_featured ON products(featured);
+
+CREATE INDEX IF NOT EXISTS idx_orders_user ON orders(user_id);
+CREATE INDEX IF NOT EXISTS idx_orders_status ON orders(status);
+CREATE INDEX IF NOT EXISTS idx_orders_payment_status ON orders(payment_status);
+CREATE INDEX IF NOT EXISTS idx_orders_order_date ON orders(order_date);
+
+CREATE INDEX IF NOT EXISTS idx_order_items_order ON order_items(order_id);
+CREATE INDEX IF NOT EXISTS idx_order_items_product ON order_items(product_id);
+
+CREATE INDEX IF NOT EXISTS idx_reviews_product ON product_reviews(product_id);
+CREATE INDEX IF NOT EXISTS idx_reviews_user ON product_reviews(user_id);
+CREATE INDEX IF NOT EXISTS idx_reviews_rating ON product_reviews(rating);
+
+CREATE INDEX IF NOT EXISTS idx_cart_user ON shopping_cart(user_id);
+CREATE INDEX IF NOT EXISTS idx_cart_product ON shopping_cart(product_id);
+
+-- 插入初始商品分类数据
+INSERT OR IGNORE INTO product_categories (id, name, parent_id, level, sort_order) VALUES
+(1, '牛肉制品', 0, 1, 1),
+(2, '乳制品', 0, 1, 2),
+(3, '休闲食品', 0, 1, 3),
+(4, '设备用品', 0, 1, 4),
+(5, '饲料用品', 0, 1, 5),
+(11, '新鲜牛肉', 1, 2, 1),
+(12, '牛肉干', 1, 2, 2),
+(13, '牛肉罐头', 1, 2, 3),
+(21, '鲜奶', 2, 2, 1),
+(22, '酸奶', 2, 2, 2),
+(23, '奶粉', 2, 2, 3);
+
+-- 插入示例商品数据
+INSERT OR IGNORE INTO products (id, name, sku, category, description, price, original_price, stock, seller_id, status, featured, images, origin) VALUES
+(1, '优质牛肉礼盒装', 'BEEF001', 'beef', '来自锡林浩特优质牧场的新鲜牛肉，肉质鲜美，营养丰富', 268.00, 298.00, 45, 1, 'active', 1, '["https://example.com/beef1.jpg"]', '内蒙古锡林浩特'),
+(2, '有机牛奶', 'MILK001', 'dairy', '纯天然有机牛奶，无添加剂，营养价值高', 25.80, 28.00, 120, 1, 'active', 1, '["https://example.com/milk1.jpg"]', '内蒙古呼伦贝尔'),
+(3, '手工牛肉干', 'JERKY001', 'beef', '传统工艺制作，口感醇厚，便于携带', 58.00, 68.00, 80, 1, 'active', 0, '["https://example.com/jerky1.jpg"]', '内蒙古阿拉善'),
+(4, '牧场酸奶', 'YOGURT001', 'dairy', '新鲜牧场奶源，益生菌发酵，口感顺滑', 12.50, 15.00, 200, 1, 'active', 1, '["https://example.com/yogurt1.jpg"]', '内蒙古锡林郭勒'),
+(5, '精选牛排', 'STEAK001', 'beef', '优质牛排，适合煎烤，肉质鲜嫩', 128.00, 148.00, 30, 1, 'active', 1, '["https://example.com/steak1.jpg"]', '内蒙古通辽');
+
+-- 插入示例优惠券数据
+INSERT OR IGNORE INTO coupons (id, code, name, type, value, min_amount, usage_limit, start_date, end_date, status) VALUES
+(1, 'WELCOME10', '新用户优惠券', 'fixed', 10.00, 50.00, 1000, '2024-01-01 00:00:00', '2024-12-31 23:59:59', 'active'),
+(2, 'SAVE20', '满200减20', 'fixed', 20.00, 200.00, 500, '2024-01-01 00:00:00', '2024-12-31 23:59:59', 'active'),
+(3, 'PERCENT5', '95折优惠', 'percentage', 5.00, 100.00, 300, '2024-01-01 00:00:00', '2024-12-31 23:59:59', 'active');
+
+SELECT '商城数据库表创建完成！' AS message;
--- a/backend/api/database/optimize.sql
+++ b/backend/api/database/optimize.sql
@@ -0,0 +1,60 @@
+-- 数据库性能优化脚本
+-- 为xlxumu项目的核心表创建索引以提升查询性能
+
+-- 用户表索引优化（已存在的跳过）
+-- CREATE INDEX IF NOT EXISTS idx_users_username ON users(username);
+-- CREATE INDEX IF NOT EXISTS idx_users_email ON users(email);
+-- CREATE INDEX IF NOT EXISTS idx_users_phone ON users(phone);
+-- CREATE INDEX IF NOT EXISTS idx_users_status ON users(status);
+-- CREATE INDEX IF NOT EXISTS idx_users_created_at ON users(created_at);
+
+-- 牛只管理表索引优化（已存在的跳过）
+-- CREATE INDEX IF NOT EXISTS idx_cattle_ear_tag ON cattle(ear_tag);
+-- CREATE INDEX IF NOT EXISTS idx_cattle_owner_id ON cattle(owner_id);
+-- CREATE INDEX IF NOT EXISTS idx_cattle_breed ON cattle(breed);
+-- CREATE INDEX IF NOT EXISTS idx_cattle_status ON cattle(status);
+-- CREATE INDEX IF NOT EXISTS idx_cattle_birth_date ON cattle(birth_date);
+-- CREATE INDEX IF NOT EXISTS idx_cattle_created_at ON cattle(created_at);
+
+-- 用户类型索引
+CREATE INDEX IF NOT EXISTS idx_users_user_type ON users(user_type);
+
+-- 牛只性别和健康状态索引
+CREATE INDEX IF NOT EXISTS idx_cattle_gender ON cattle(gender);
+CREATE INDEX IF NOT EXISTS idx_cattle_health_status ON cattle(health_status);
+
+-- 复合索引优化（针对常见查询组合）
+-- CREATE INDEX IF NOT EXISTS idx_cattle_owner_status ON cattle(owner_id, status);
+CREATE INDEX IF NOT EXISTS idx_users_type_status ON users(user_type, status);
+CREATE INDEX IF NOT EXISTS idx_cattle_owner_health ON cattle(owner_id, health_status);
+
+-- 分析表统计信息（SQLite特定）
+ANALYZE;
+
+-- 查询优化建议注释
+/*
+性能优化建议：
+
+1. 查询优化：
+   - 使用 LIMIT 限制返回结果数量
+   - 避免 SELECT * ，只查询需要的字段
+   - 使用 WHERE 条件过滤数据
+   - 合理使用 ORDER BY 和索引配合
+
+2. 索引使用：
+   - 经常用于 WHERE 条件的字段应建立索引
+   - 经常用于 ORDER BY 的字段应建立索引
+   - 外键字段应建立索引
+   - 避免在小表上建立过多索引
+
+3. 数据库维护：
+   - 定期运行 ANALYZE 更新统计信息
+   - 定期运行 VACUUM 整理数据库文件
+   - 监控慢查询日志
+
+4. 应用层优化：
+   - 使用连接池管理数据库连接
+   - 实现查询结果缓存
+   - 分页查询大数据集
+   - 批量操作减少数据库交互次数
+*/
--- a/backend/api/database/xlxumu_dev.db
+++ b/backend/api/database/xlxumu_dev.db