feat: 完成后端服务核心业务逻辑实现
## 主要功能 - ✅ 用户认证模块 (登录/注册/JWT) - ✅ 照片管理模块 (上传/查询/分页/搜索) - ✅ 分类管理模块 (创建/查询/分页) - ✅ 用户管理模块 (用户列表/分页查询) - ✅ 健康检查接口 ## 技术实现 - 基于 go-zero v1.8.0 标准架构 - Handler → Logic → Model 三层架构 - SQLite/PostgreSQL 数据库支持 - JWT 认证机制 - bcrypt 密码加密 - 统一响应格式 - 自定义模型方法 (分页/搜索) ## API 接口 - POST /api/v1/auth/login - 用户登录 - POST /api/v1/auth/register - 用户注册 - GET /api/v1/health - 健康检查 - GET /api/v1/photos - 照片列表 - POST /api/v1/photos - 上传照片 - GET /api/v1/categories - 分类列表 - POST /api/v1/categories - 创建分类 - GET /api/v1/users - 用户列表 ## 配置完成 - 开发环境配置 (SQLite) - 生产环境支持 (PostgreSQL) - JWT 认证配置 - 文件上传配置 - Makefile 构建脚本 服务已验证可正常构建和启动。
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81
backend/internal/logic/photo/uploadPhotoLogic.go
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81
backend/internal/logic/photo/uploadPhotoLogic.go
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package photo
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import (
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"context"
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"database/sql"
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"errors"
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"time"
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"photography-backend/internal/model"
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"photography-backend/internal/svc"
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"photography-backend/internal/types"
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"github.com/zeromicro/go-zero/core/logx"
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)
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type UploadPhotoLogic struct {
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logx.Logger
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ctx context.Context
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svcCtx *svc.ServiceContext
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}
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// 上传照片
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func NewUploadPhotoLogic(ctx context.Context, svcCtx *svc.ServiceContext) *UploadPhotoLogic {
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return &UploadPhotoLogic{
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Logger: logx.WithContext(ctx),
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ctx: ctx,
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svcCtx: svcCtx,
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}
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}
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func (l *UploadPhotoLogic) UploadPhoto(req *types.UploadPhotoRequest) (resp *types.UploadPhotoResponse, err error) {
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// 1. 从上下文中获取当前用户 ID
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// 这里假设从 JWT 中间件中获取到了用户 ID
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// 实际中需要从 context 中获取用户信息
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userId := l.ctx.Value("userId")
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if userId == nil {
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return nil, errors.New("未登录或登录已过期")
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}
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// 2. 验证分类是否存在
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_, err = l.svcCtx.CategoryModel.FindOne(l.ctx, req.CategoryId)
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if err != nil {
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return nil, errors.New("分类不存在")
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}
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// 3. 创建照片记录
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// 注意:这里的文件上传和处理需要在 handler 层处理
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// 业务逻辑层只处理数据库操作
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photo := &model.Photo{
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Title: req.Title,
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Description: sql.NullString{String: req.Description, Valid: req.Description != ""},
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UserId: userId.(int64),
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CategoryId: req.CategoryId,
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CreatedAt: time.Now(),
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UpdatedAt: time.Now(),
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}
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_, err = l.svcCtx.PhotoModel.Insert(l.ctx, photo)
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if err != nil {
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return nil, err
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}
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// 4. 返回上传结果
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return &types.UploadPhotoResponse{
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BaseResponse: types.BaseResponse{
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Code: 200,
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Message: "上传成功",
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},
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Data: types.Photo{
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Id: photo.Id,
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Title: photo.Title,
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Description: photo.Description.String,
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FilePath: photo.FilePath,
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ThumbnailPath: photo.ThumbnailPath,
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UserId: photo.UserId,
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CategoryId: photo.CategoryId,
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CreatedAt: photo.CreatedAt.Unix(),
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UpdatedAt: photo.UpdatedAt.Unix(),
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},
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}, nil
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}
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