527 lines
12 KiB
Markdown
527 lines
12 KiB
Markdown
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# 🏗️ 结伴客系统架构文档
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## 📋 项目概述
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结伴客是一个综合性的社交旅行平台,采用现代化的微服务架构设计,包含后台管理系统、微信小程序和官方网站三个主要模块。系统支持结伴旅行、动物认领、商家服务等核心业务功能。
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## 🎯 技术选型
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### 前端技术栈
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#### 微信小程序
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- **开发框架**:原生微信小程序
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- **UI组件库**:Vant Weapp
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- **状态管理**:原生状态管理
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- **网络请求**:wx.request封装
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- **构建工具**:微信开发者工具
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#### 后台管理系统
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- **开发框架**:Vue 3 + TypeScript
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- **UI组件库**:Element Plus
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- **状态管理**:Pinia
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- **路由管理**:Vue Router 4
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- **HTTP客户端**:Axios
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- **构建工具**:Vite
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#### 官方网站
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- **开发框架**:Vue 3 + JavaScript
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- **UI框架**:自定义CSS + 响应式设计
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- **路由管理**:Vue Router
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- **构建工具**:Vite
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- **SEO优化**:Vue Meta
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### 后端技术栈
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#### Node.js版本(主要)
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- **运行环境**:Node.js 16.x+
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- **Web框架**:Express.js
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- **数据库ORM**:Sequelize
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- **认证授权**:JWT + bcrypt
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- **参数验证**:Joi
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- **日志管理**:Winston
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- **进程管理**:PM2
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#### Java微服务版本(备选)
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- **开发框架**:Spring Boot 2.7+
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- **微服务框架**:Spring Cloud
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- **数据库ORM**:MyBatis Plus
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- **服务注册**:Eureka Server
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- **API网关**:Spring Cloud Gateway
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- **配置中心**:Spring Cloud Config
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### 数据存储
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#### 关系型数据库
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- **主数据库**:MySQL 8.0
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- **连接池**:HikariCP
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- **数据迁移**:Sequelize Migrations
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- **备份策略**:定时全量备份 + 增量备份
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#### 缓存系统
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- **内存缓存**:Redis 6.0+
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- **缓存策略**:LRU淘汰策略
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- **数据类型**:String、Hash、List、Set
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- **持久化**:RDB + AOF
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#### 文件存储
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- **对象存储**:MinIO / 阿里云OSS
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- **CDN加速**:阿里云CDN
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- **图片处理**:ImageMagick
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- **文件类型**:图片、文档、视频
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### 开发工具
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#### 版本控制
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- **代码仓库**:Git
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- **分支策略**:Git Flow
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- **代码审查**:Pull Request
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#### 代码质量
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- **代码规范**:ESLint + Prettier
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- **类型检查**:TypeScript
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- **单元测试**:Jest + Supertest
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- **集成测试**:Postman + Newman
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#### 容器化部署
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- **容器技术**:Docker
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- **编排工具**:Docker Compose
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- **镜像仓库**:Docker Hub / 阿里云容器镜像服务
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## 🏢 系统架构设计
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### 整体架构图
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```mermaid
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graph TB
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subgraph "客户端层"
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A[微信小程序]
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B[后台管理系统]
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C[官方网站]
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end
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subgraph "网关层"
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D[Nginx负载均衡]
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E[API网关]
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end
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subgraph "应用服务层"
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F[用户服务]
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G[旅行服务]
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H[动物服务]
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I[商家服务]
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J[订单服务]
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K[消息服务]
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end
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subgraph "数据存储层"
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L[MySQL主库]
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M[MySQL从库]
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N[Redis缓存]
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O[MinIO对象存储]
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end
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subgraph "基础设施层"
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P[监控系统]
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Q[日志系统]
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R[配置中心]
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end
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A --> D
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B --> D
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C --> D
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D --> E
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E --> F
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E --> G
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E --> H
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E --> I
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E --> J
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E --> K
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F --> L
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G --> L
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H --> L
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I --> L
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J --> L
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K --> L
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L --> M
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F --> N
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G --> N
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H --> N
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I --> O
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F --> P
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G --> Q
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H --> R
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```
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### 微服务架构(Java版本)
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```mermaid
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graph TB
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subgraph "服务注册中心"
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A[Eureka Server]
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end
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subgraph "API网关"
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B[Gateway Service]
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end
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subgraph "业务服务"
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C[用户服务 User Service]
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D[认证服务 Auth Service]
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E[旅行服务 Travel Service]
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F[动物服务 Animal Service]
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G[订单服务 Order Service]
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H[推广服务 Promotion Service]
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end
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subgraph "数据层"
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I[MySQL集群]
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J[Redis集群]
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K[消息队列 RabbitMQ]
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end
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B --> A
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C --> A
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D --> A
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E --> A
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F --> A
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G --> A
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H --> A
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B --> C
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B --> D
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B --> E
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B --> F
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B --> G
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B --> H
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C --> I
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D --> I
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E --> I
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F --> I
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G --> I
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H --> I
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C --> J
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E --> J
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F --> J
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G --> K
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H --> K
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```
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## 🗄️ 数据库设计
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### 数据库架构
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#### 主从复制架构
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```mermaid
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graph LR
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A[应用服务器] --> B[MySQL主库]
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B --> C[MySQL从库1]
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B --> D[MySQL从库2]
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A --> C
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A --> D
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```
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#### 分库分表策略
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- **用户表**:按用户ID取模分表
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- **订单表**:按时间分表(月表)
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- **日志表**:按日期分表(日表)
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### 核心表结构
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#### 用户相关表
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```sql
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-- 用户基础信息表
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CREATE TABLE users (
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id INT PRIMARY KEY AUTO_INCREMENT,
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openid VARCHAR(100) UNIQUE NOT NULL COMMENT '微信openid',
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nickname VARCHAR(50) NOT NULL COMMENT '用户昵称',
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avatar VARCHAR(255) COMMENT '头像URL',
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gender ENUM('male', 'female', 'unknown') DEFAULT 'unknown',
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birthday DATE COMMENT '生日',
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phone VARCHAR(20) COMMENT '手机号',
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email VARCHAR(100) COMMENT '邮箱',
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travel_count INT DEFAULT 0 COMMENT '旅行次数',
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animal_claim_count INT DEFAULT 0 COMMENT '认领动物数量',
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status ENUM('active', 'inactive', 'banned') DEFAULT 'active',
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
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INDEX idx_openid (openid),
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INDEX idx_phone (phone),
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INDEX idx_status (status)
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);
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```
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#### 旅行相关表
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```sql
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-- 旅行计划表
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CREATE TABLE travel_plans (
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id INT PRIMARY KEY AUTO_INCREMENT,
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user_id INT NOT NULL,
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destination VARCHAR(100) NOT NULL COMMENT '目的地',
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start_date DATE NOT NULL COMMENT '开始日期',
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end_date DATE NOT NULL COMMENT '结束日期',
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budget DECIMAL(10,2) COMMENT '预算',
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interests TEXT COMMENT '兴趣偏好',
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description TEXT COMMENT '行程描述',
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visibility ENUM('public', 'friends', 'private') DEFAULT 'public',
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max_participants INT DEFAULT 4 COMMENT '最大参与人数',
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current_participants INT DEFAULT 1 COMMENT '当前参与人数',
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status ENUM('active', 'completed', 'cancelled') DEFAULT 'active',
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
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FOREIGN KEY (user_id) REFERENCES users(id),
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INDEX idx_destination (destination),
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INDEX idx_date_range (start_date, end_date),
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INDEX idx_status (status)
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);
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```
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#### 动物认领表
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```sql
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-- 动物信息表
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CREATE TABLE animals (
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id INT PRIMARY KEY AUTO_INCREMENT,
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merchant_id INT NOT NULL,
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name VARCHAR(50) NOT NULL COMMENT '动物名称',
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type ENUM('cow', 'sheep', 'pig', 'chicken') NOT NULL COMMENT '动物类型',
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breed VARCHAR(50) COMMENT '品种',
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age INT COMMENT '年龄(月)',
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gender ENUM('male', 'female') COMMENT '性别',
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description TEXT COMMENT '动物描述',
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images JSON COMMENT '动物图片',
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price DECIMAL(10,2) NOT NULL COMMENT '认领价格',
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farm_location VARCHAR(100) COMMENT '农场位置',
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status ENUM('available', 'claimed', 'unavailable') DEFAULT 'available',
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claim_count INT DEFAULT 0 COMMENT '被认领次数',
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
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FOREIGN KEY (merchant_id) REFERENCES merchants(id),
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INDEX idx_type (type),
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INDEX idx_status (status),
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INDEX idx_price (price)
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);
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```
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## 🔐 安全架构
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### 认证授权机制
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#### JWT Token认证
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```mermaid
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sequenceDiagram
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participant C as 客户端
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participant A as 认证服务
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participant S as 业务服务
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participant D as 数据库
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C->>A: 微信登录请求
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A->>D: 验证用户信息
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D-->>A: 返回用户数据
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A-->>C: 返回JWT Token
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C->>S: 携带Token请求业务接口
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S->>S: 验证Token有效性
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S->>D: 查询业务数据
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D-->>S: 返回业务数据
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S-->>C: 返回业务响应
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```
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#### 权限控制
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- **角色定义**:普通用户、商家用户、管理员
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- **权限粒度**:接口级权限控制
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- **权限验证**:中间件统一验证
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### 数据安全
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#### 数据加密
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- **传输加密**:HTTPS/TLS 1.3
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- **存储加密**:敏感数据AES-256加密
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- **密码加密**:bcrypt哈希算法
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#### 数据脱敏
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- **手机号脱敏**:中间4位显示为*
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- **身份证脱敏**:中间部分显示为*
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- **银行卡脱敏**:只显示后4位
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## 🚀 性能优化
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### 缓存策略
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#### Redis缓存设计
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```mermaid
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graph TB
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|
|
A[客户端请求] --> B{缓存命中?}
|
|||
|
|
B -->|是| C[返回缓存数据]
|
|||
|
|
B -->|否| D[查询数据库]
|
|||
|
|
D --> E[更新缓存]
|
|||
|
|
E --> F[返回数据]
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
#### 缓存层级
|
|||
|
|
- **L1缓存**:应用内存缓存(Node.js内存)
|
|||
|
|
- **L2缓存**:Redis分布式缓存
|
|||
|
|
- **L3缓存**:CDN边缘缓存
|
|||
|
|
|
|||
|
|
### 数据库优化
|
|||
|
|
|
|||
|
|
#### 索引策略
|
|||
|
|
- **主键索引**:所有表必须有主键
|
|||
|
|
- **唯一索引**:唯一字段建立唯一索引
|
|||
|
|
- **复合索引**:多字段查询建立复合索引
|
|||
|
|
- **覆盖索引**:高频查询建立覆盖索引
|
|||
|
|
|
|||
|
|
#### 查询优化
|
|||
|
|
- **分页查询**:使用LIMIT + OFFSET
|
|||
|
|
- **批量操作**:使用批量插入/更新
|
|||
|
|
- **读写分离**:读操作走从库,写操作走主库
|
|||
|
|
|
|||
|
|
## 📊 监控运维
|
|||
|
|
|
|||
|
|
### 系统监控
|
|||
|
|
|
|||
|
|
#### 监控指标
|
|||
|
|
- **系统指标**:CPU、内存、磁盘、网络
|
|||
|
|
- **应用指标**:QPS、响应时间、错误率
|
|||
|
|
- **业务指标**:用户活跃度、订单量、收入
|
|||
|
|
|
|||
|
|
#### 监控工具
|
|||
|
|
- **系统监控**:Prometheus + Grafana
|
|||
|
|
- **应用监控**:APM工具
|
|||
|
|
- **日志监控**:ELK Stack
|
|||
|
|
|
|||
|
|
### 日志管理
|
|||
|
|
|
|||
|
|
#### 日志分类
|
|||
|
|
- **访问日志**:记录所有API请求
|
|||
|
|
- **错误日志**:记录系统异常和错误
|
|||
|
|
- **业务日志**:记录关键业务操作
|
|||
|
|
- **审计日志**:记录敏感操作
|
|||
|
|
|
|||
|
|
#### 日志格式
|
|||
|
|
```json
|
|||
|
|
{
|
|||
|
|
"timestamp": "2025-01-01T12:00:00.000Z",
|
|||
|
|
"level": "info",
|
|||
|
|
"service": "user-service",
|
|||
|
|
"traceId": "abc123",
|
|||
|
|
"userId": 1001,
|
|||
|
|
"action": "login",
|
|||
|
|
"message": "用户登录成功",
|
|||
|
|
"duration": 150,
|
|||
|
|
"ip": "192.168.1.100"
|
|||
|
|
}
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
## 🔄 部署架构
|
|||
|
|
|
|||
|
|
### 容器化部署
|
|||
|
|
|
|||
|
|
#### Docker容器设计
|
|||
|
|
```dockerfile
|
|||
|
|
# Node.js应用容器
|
|||
|
|
FROM node:16-alpine
|
|||
|
|
WORKDIR /app
|
|||
|
|
COPY package*.json ./
|
|||
|
|
RUN npm ci --only=production
|
|||
|
|
COPY . .
|
|||
|
|
EXPOSE 3000
|
|||
|
|
CMD ["npm", "start"]
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
#### Docker Compose编排
|
|||
|
|
```yaml
|
|||
|
|
version: '3.8'
|
|||
|
|
services:
|
|||
|
|
app:
|
|||
|
|
build: .
|
|||
|
|
ports:
|
|||
|
|
- "3000:3000"
|
|||
|
|
depends_on:
|
|||
|
|
- mysql
|
|||
|
|
- redis
|
|||
|
|
environment:
|
|||
|
|
- NODE_ENV=production
|
|||
|
|
|
|||
|
|
mysql:
|
|||
|
|
image: mysql:8.0
|
|||
|
|
environment:
|
|||
|
|
MYSQL_ROOT_PASSWORD: password
|
|||
|
|
volumes:
|
|||
|
|
- mysql_data:/var/lib/mysql
|
|||
|
|
|
|||
|
|
redis:
|
|||
|
|
image: redis:6-alpine
|
|||
|
|
volumes:
|
|||
|
|
- redis_data:/data
|
|||
|
|
|
|||
|
|
volumes:
|
|||
|
|
mysql_data:
|
|||
|
|
redis_data:
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
### 负载均衡
|
|||
|
|
|
|||
|
|
#### Nginx配置
|
|||
|
|
```nginx
|
|||
|
|
upstream backend {
|
|||
|
|
server app1:3000 weight=1;
|
|||
|
|
server app2:3000 weight=1;
|
|||
|
|
server app3:3000 weight=1;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
server {
|
|||
|
|
listen 80;
|
|||
|
|
server_name api.jiebanke.com;
|
|||
|
|
|
|||
|
|
location / {
|
|||
|
|
proxy_pass http://backend;
|
|||
|
|
proxy_set_header Host $host;
|
|||
|
|
proxy_set_header X-Real-IP $remote_addr;
|
|||
|
|
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
## 📈 扩展性设计
|
|||
|
|
|
|||
|
|
### 水平扩展
|
|||
|
|
|
|||
|
|
#### 应用层扩展
|
|||
|
|
- **无状态设计**:应用服务无状态,支持水平扩展
|
|||
|
|
- **负载均衡**:通过负载均衡器分发请求
|
|||
|
|
- **自动扩缩容**:基于CPU/内存使用率自动扩缩容
|
|||
|
|
|
|||
|
|
#### 数据层扩展
|
|||
|
|
- **读写分离**:主库写入,从库读取
|
|||
|
|
- **分库分表**:按业务或数据量分库分表
|
|||
|
|
- **缓存集群**:Redis集群模式
|
|||
|
|
|
|||
|
|
### 垂直扩展
|
|||
|
|
|
|||
|
|
#### 服务拆分
|
|||
|
|
- **按业务拆分**:用户服务、订单服务、支付服务
|
|||
|
|
- **按功能拆分**:认证服务、通知服务、文件服务
|
|||
|
|
- **按数据拆分**:用户数据、业务数据、日志数据
|
|||
|
|
|
|||
|
|
## 🔮 技术演进规划
|
|||
|
|
|
|||
|
|
### 短期规划(3-6个月)
|
|||
|
|
- 完善监控告警系统
|
|||
|
|
- 优化数据库性能
|
|||
|
|
- 增强安全防护机制
|
|||
|
|
|
|||
|
|
### 中期规划(6-12个月)
|
|||
|
|
- 微服务架构改造
|
|||
|
|
- 引入消息队列
|
|||
|
|
- 实现服务治理
|
|||
|
|
|
|||
|
|
### 长期规划(1-2年)
|
|||
|
|
- 云原生架构转型
|
|||
|
|
- 大数据分析平台
|
|||
|
|
- AI智能推荐系统
|
|||
|
|
|
|||
|
|
---
|
|||
|
|
|
|||
|
|
*文档版本:v1.0*
|
|||
|
|
*最后更新:2025年1月*
|