vifo
3aebe0b5a5
设计调整原因：上传服务是统一基础设施，强制枚举会要求「加新模块 = 改框架代码」。 改为 final class + normalize() 格式校验，业务模块自定 bizType 字符串即可。 - spec §4.2: 整个 FileBizType 章节重写（工具类 + 格式约束 + 设计意图） - spec flow 5/11: 校验从 values() 改为 normalize() - spec API 表 / 代码结构表 / 订阅方示例 同步更新 - plan Step 1.2/1.4 / 状态表 / 流程校验 / 发布器签名 同步更新
516 lines
21 KiB
Markdown
516 lines
21 KiB
Markdown
# 文件存储服务（rui-service-storage）设计文档
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> **日期**: 2026-06-07
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> **状态**: 设计中
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> **作者**: AI Assistant
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> **关联**: Gitea #4 [API-REQ] 通用文件上传接口
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---
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## 1. 背景与目标
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### 1.1 现状
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- 全局无文件上传相关代码（`grep -ri "upload|oss|cos"` 业务代码无命中）
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- `rui-common-web` 的 `BaseController` 已 import `MultipartFile`，框架就绪
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- `rui-common-mq` + `rui-common-mq-redis` 已有完整发布订阅抽象
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- 各业务模块开始需要上传能力：
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- **Gitea #4** 紧急：SysApp 第三方应用集成需上传证书（`.pem/.crt/.key/.p12`）
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- 后续：用户头像、订单附件、CMS 轮播图等
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### 1.2 目标
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1. 独立微服务 `rui-service-storage` 提供**统一上传接口**（`POST /storage/upload`）
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2. 支持三家存储后端：**阿里云 OSS / 腾讯云 COS / 本地**（Strategy 模式可扩展）
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3. **统一鉴权**：服务内置 `@AutoPermission`（网关暂不背鉴权）
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4. **统一返回**：所有响应走 `Result<T>` 包装
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5. **Redis pub/sub 广播**：上传完成后推送 `ON_UPLOAD` 事件，订阅方按 `type` 字段过滤处理
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6. **集中常量**：跨服务 topic 字符串统一在 `rui-common-core/.../constants/MqTopicConstants.java` 维护
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7. **集成聚合启动器** `rui-service-starter`
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---
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## 2. 核心设计原则
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1. **统一接口**：所有业务模块共用 `POST /storage/upload`，差异由 `bizType` 区分
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2. **解耦推送**：上传完成 → 落 `sys_file` → 推 MQ 事件 → 订阅方各自处理，存储服务不感知业务
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3. **可插拔后端**：Strategy 模式，新增存储后端只加一个 `@Component` 即可
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4. **配置驱动**：`bizType` 的扩展名白名单、文件大小限制、默认存储后端全部 yaml 配置
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5. **常量集中**：topic/channel 等跨服务字符串统一在 `rui-common-core` 常量目录维护
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6. **事件可重放**：所有上传记录落库 `sys_file`，订阅方失败可基于 DB 重放
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7. **不破坏向后兼容**：旧服务无需改造即可调用新上传接口
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---
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## 3. 架构设计
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### 3.1 整体架构
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```
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┌──────────┐ POST /storage/upload ┌──────────────────────────────┐
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│ 客户端 │ ───────────────────────────────▶ │ rui-gateway 路由透传 │
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└──────────┘ └────────────┬─────────────────┘
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│ JWT 已校验 / 注入 header
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▼
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┌──────────────────────────────┐
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│ rui-service-storage │
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│ @EnableResourceServer │
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│ @AutoPermission("sys:file:*")│
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├──────────────────────────────┤
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│ 1. SecurityUtils 取用户/租户 │
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│ 2. 校验 bizType 枚举 + 配置 │
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│ 3. 校验大小/扩展名 │
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│ 4. FileStorage Strategy 上传 │
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│ ├ AliyunOssFileStorage │
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│ ├ TencentCosFileStorage │
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│ └ LocalFileStorage │
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│ 5. sys_file 落库 │
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│ 6. mqClient.publish( │
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│ REDIS, ON_UPLOAD, payload)│
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│ 7. return Result.ok(vo) │
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└────────────┬─────────────────┘
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│ Redis pub/sub
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┌──────────────────────────────┼──────────────────────────────┐
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▼ ▼ ▼
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rui-service-system rui-service-user rui-service-cms
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@MqTopic(ON_UPLOAD) @MqTopic(ON_UPLOAD) @MqTopic(ON_UPLOAD)
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filter type=SYS_APP_CERT_UPLOAD filter type=USER_AVATAR_UPLOAD filter type=CMS_BANNER_UPLOAD
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→ SysApp.appendCertificate() → user.setAvatar() → banner.setImage()
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```
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### 3.2 模块定位
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| 模块 | 角色 | 依赖 |
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|------|------|------|
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| `rui-common-core` | 提供 `MqTopicConstants` + `FileBizType` 工具类 + `Result` | 无 |
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| `rui-service-storage` | 上传服务本体（Controller + Strategy + Service） | web/mybatis/redis/mq/security |
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| `rui-service-system` 等 | 订阅方，实现 `MqConsumer` 处理事件 | mq-redis（已通过 starter 引入） |
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| `rui-service-starter` | 聚合启动器，引入 storage 依赖 | 现有 + storage |
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---
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## 4. 数据库设计
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### 4.1 新增表 `sys_file`
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```sql
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CREATE TABLE sys_file (
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id BIGINT NOT NULL,
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name VARCHAR(200) NOT NULL COMMENT '存储文件名 (uuid + 扩展名)',
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original_name VARCHAR(200) NOT NULL COMMENT '原始文件名',
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url VARCHAR(1000) NOT NULL COMMENT '可访问URL',
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storage_type VARCHAR(20) NOT NULL COMMENT '存储后端 ALIYUN/TENCENT/LOCAL',
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biz_type VARCHAR(50) NOT NULL COMMENT '业务类型 (大写蛇形字符串，业务模块自定)',
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biz_id VARCHAR(100) DEFAULT NULL COMMENT '业务关联ID (可选)',
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size BIGINT NOT NULL COMMENT '字节',
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content_type VARCHAR(100) DEFAULT NULL COMMENT 'MIME 类型',
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sha256 CHAR(64) DEFAULT NULL COMMENT '文件哈希 (查重用)',
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uploader_id BIGINT DEFAULT NULL COMMENT '上传者用户ID',
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tenant_id BIGINT NOT NULL DEFAULT 0 COMMENT '租户ID',
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created_by BIGINT DEFAULT NULL,
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created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
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updated_by BIGINT DEFAULT NULL,
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updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
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deleted TINYINT(1) NOT NULL DEFAULT 0 COMMENT '逻辑删除',
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PRIMARY KEY (id),
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INDEX idx_biz (biz_type, biz_id),
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INDEX idx_uploader (uploader_id),
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INDEX idx_sha256 (sha256),
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INDEX idx_created (created_at)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='文件存储记录';
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```
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继承 `BaseEntity`（自动填充 `created_by/created_at/updated_by/updated_at/tenant_id/deleted`），最终 DDL 可省略由框架维护的列定义。
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### 4.2 工具类 `FileBizType`（位于 `rui-common-core`，**不是枚举**）
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`bizType` **不维护中央清单**，新业务模块加新字符串即可，框架不强制注册。
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理由：上传服务是「统一基础设施」，应当对业务透明。强制枚举会让「加个新模块」变成「改框架代码 + 重新发版」，违背开闭原则。
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```java
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package com.rui.common.core.enums;
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/**
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* 文件业务类型工具类（已不再是枚举）。
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* <p>上传接口接收任意 bizType 字符串，框架只做格式校验，不维护"已注册"清单。</p>
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*/
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public final class FileBizType {
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private static final Pattern PATTERN = Pattern.compile("^[A-Z][A-Z0-9_]*$");
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private static final int MAX_LENGTH = 50;
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private FileBizType() {}
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/** trim / 大写 / - 转 _ / 格式校验；非法时抛 BizException */
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public static String normalize(String bizType) { /* ... */ }
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/** 订阅方按此过滤：{@code "SYS_APP_CERT_UPLOAD"} 等 */
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public static String uploadType(String bizType) { return normalize(bizType) + "_UPLOAD"; }
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public static String deletedType(String bizType) { return normalize(bizType) + "_DELETED"; }
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}
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```
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**bizType 格式约束**（normalize 强制）：
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- 字母/数字开头，仅大写字母 + 数字 + 下划线
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- 长度 ≤ 50（与 `sys_file.biz_type VARCHAR(50)` 对齐）
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- 例：`SYS_APP_CERT` / `USER_AVATAR` / `MY_NEW_BIZ` 都可
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**具体业务的大小 / 扩展名限制**走 yml 配置 `rui.file.biz-types.{BIZ_TYPE}`，缺失则走默认值；不属于「注册」。
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> ⚠️ 这是 2026-06-07 第二次设计调整：原计划是 enum + 预定义 4 个值，后改为工具类 + 任意字符串。
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---
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## 5. 关键流程设计
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### 5.1 上传流程
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```
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1. Client → POST /storage/upload (file, bizType, storage?)
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2. SysFileController.upload() 入口
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3. @AutoPermission 校验 sys:file:upload
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4. SecurityUtils 取 uploaderId/tenantId
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5. 校验 bizType 格式 (normalize) 否则 400；不再校验「是否在已注册清单」
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6. 加载 rui.file.biz-types[bizType] 配置
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├─ 校验 file.size ≤ maxSize
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└─ 校验 file.ext ∈ allowedExtensions
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7. 选定后端
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├─ 显式 storage=xxx 优先
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└─ 否则 rui.file.active
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8. FileStorage.upload(file) → 返回 url / storageKey
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9. 算 sha256（同步，10MB 以内可接受）
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10. sys_file 落库 (INSERT)
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11. mqClient.publish(MqProvider.REDIS, MqTopicConstants.ON_UPLOAD,
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EventPayload.of(bizType, file, uploader, tenant) // bizType 即上传时传的字符串
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12. return Result.ok(SysFileUploadVO)
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```
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### 5.2 删除流程
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```
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1. Client → DELETE /storage/file/{id}
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2. 权限校验 sys:file:delete
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3. 查 sys_file 找到 url + storageKey
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4. FileStorage.delete(storageKey)
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5. sys_file 软删 (UPDATE deleted=1)
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6. mqClient.publish(REDIS, MqTopicConstants.ON_FILE_DELETED,
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{type: bizType.deletedType(), fileId, url, ...})
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7. return Result.ok()
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```
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### 5.3 事件推送流程
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```
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┌────────────────────────┐ ┌────────────────────────┐
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│ storage 服务 │ │ 订阅服务 (e.g. system) │
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│ │ │ │
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│ mqClient.publish( │ Redis Pub │ @MqTopic(ON_UPLOAD) │
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│ MqProvider.REDIS, │ ─────────────▶ │ public class SysApp │
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│ ON_UPLOAD, │ channel= │ CertConsumer │
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│ {type, bizType, │ ON_UPLOAD │ implements MqConsumer│
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│ fileId, url, ...}) │ │ │
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│ │ │ onMessage(id,topic,data)│
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└────────────────────────┘ │ if (!SYS_APP_CERT │
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│ .uploadType() │
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│ .equals(data │
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│ .getString │
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│ ("type"))) │
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│ return; │
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│ sysAppService │
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│ .appendCert(...) │
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└────────────────────────┘
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```
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---
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## 6. 代码结构
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### 6.1 新增文件清单
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| 路径 | 说明 |
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|------|------|
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| `rui-common/rui-common-core/.../constants/MqTopicConstants.java` | 跨服务 MQ topic 常量 |
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| `rui-common/rui-common-core/.../enums/FileBizType.java` | 文件业务类型工具类（非枚举；normalize / uploadType / deletedType） |
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| `rui-service/rui-service-storage/pom.xml` | 新模块 |
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| `rui-service/rui-service-storage/src/main/java/com/rui/service/storage/StorageApplication.java` | 启动类 |
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| `rui-service/rui-service-storage/.../controller/SysFileController.java` | 上传/查询/删除接口 |
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| `rui-service/rui-service-storage/.../service/IFileStorage.java` | Strategy 接口 |
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| `rui-service/rui-service-storage/.../service/impl/AliyunOssFileStorage.java` | 阿里云 |
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| `rui-service/rui-service-storage/.../service/impl/TencentCosFileStorage.java` | 腾讯 |
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| `rui-service/rui-service-storage/.../service/impl/LocalFileStorage.java` | 本地 |
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| `rui-service/rui-service-storage/.../service/impl/FileStorageRouter.java` | 选实现 |
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| `rui-service/rui-service-storage/.../event/UploadEventPublisher.java` | 封装 ON_UPLOAD 推送 |
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| `rui-service/rui-service-storage/.../event/FileDeletedEventPublisher.java` | 封装 ON_FILE_DELETED |
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| `rui-service/rui-service-storage/.../properties/FileProperties.java` | `@ConfigurationProperties("rui.file")` |
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| `rui-service/rui-service-storage/.../entity/SysFile.java` | 实体（继承 BaseEntity） |
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| `rui-service/rui-service-storage/.../mapper/SysFileMapper.java` | Mapper |
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| `rui-service/rui-service-storage/.../service/ISysFileService.java` | Service 接口 |
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| `rui-service/rui-service-storage/.../service/impl/SysFileServiceImpl.java` | Service 实现 |
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| `rui-service/rui-service-storage/.../dto/SysFileUploadVO.java` | 上传返回 VO |
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| `rui-service/rui-service-storage/.../dto/SysFileQueryVO.java` | 查询返回 VO |
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| `rui-service/rui-service-storage/.../dto/UploadEventPayload.java` | 事件 payload POJO |
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| `rui-service/rui-service-storage/src/main/resources/application.yml` | port=9400 |
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| `sql/init-database.sql` | 新增 sys_file 表 DDL |
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### 6.2 修改文件清单
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| 路径 | 修改内容 |
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|------|----------|
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| `rui-service/pom.xml` | `<modules>` 加 `rui-service-storage` |
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| `rui-service/rui-service-starter/pom.xml` | 加 `rui-service-storage` 依赖 |
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| `rui-service/rui-service-starter/.../StarterApplication.java` | `@ComponentScan` 加 `com.rui.service.storage` |
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| `rui-service/rui-service-starter/src/main/resources/application.yml` | `rui.modules.available` 加 storage 入口 |
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---
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## 7. API 接口设计
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### 7.1 上传文件
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```http
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POST /storage/upload
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Content-Type: multipart/form-data
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Authorization: Bearer <JWT> # 网关已注入，storage 服务再校验
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file : MultipartFile (必填)
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bizType : string (form) (必填；大写蛇形字符串，业务模块自定，框架不维护清单)
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storage : string (query) (可选，aliyun/tencent/local，不传走 active)
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Response (Result<SysFileUploadVO>):
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{
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"error": 0,
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"message": "success",
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"data": {
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"id": 1001,
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"name": "a1b2c3d4.pem",
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"originalName": "wechat.pem",
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"url": "https://oss.../cert/2026/06/a1b2c3d4.pem",
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"size": 2048,
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"contentType": "application/x-pem-file",
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"storageType": "ALIYUN",
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"bizType": "SYS_APP_CERT"
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}
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}
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```
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### 7.2 查询文件
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```http
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GET /storage/file/{id}
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GET /storage/file/page?bizType=SYS_APP_CERT&pageNum=1&pageSize=20
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Response (Result<SysFileQueryVO>):
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{ "id":1001, "name":"...", "url":"...", "size":2048,
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"bizType":"SYS_APP_CERT", "createdAt":"..." }
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```
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### 7.3 删除文件
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```http
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DELETE /storage/file/{id}
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Response: Result.ok()
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```
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### 7.4 权限注解
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| 接口 | 注解 |
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|------|------|
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| `POST /storage/upload` | `@AutoPermission("sys:file:upload")` |
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| `GET /storage/file/{id}` | `@AutoPermission("sys:file:query")` |
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| `GET /storage/file/page` | `@AutoPermission("sys:file:query")` |
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| `DELETE /storage/file/{id}` | `@AutoPermission("sys:file:delete")` |
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---
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## 8. 事件约定
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### 8.1 常量定义（rui-common-core/.../constants/MqTopicConstants.java）
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```java
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public final class MqTopicConstants {
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public static final String ON_UPLOAD = "ON_UPLOAD";
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public static final String ON_FILE_DELETED = "ON_FILE_DELETED";
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private MqTopicConstants() {}
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}
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```
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### 8.2 事件 Payload
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**ON_UPLOAD**：
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```json
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{
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"id": "uuid",
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"bizType": "SYS_APP_CERT",
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"type": "SYS_APP_CERT_UPLOAD",
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"fileId": 1001,
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"name": "a1b2c3d4.pem",
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"url": "https://oss.../xxx",
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"size": 2048,
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"contentType": "application/x-pem-file",
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"storageType": "ALIYUN",
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"uploaderId": 42,
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"tenantId": 0,
|
||
"extra": { },
|
||
"timestamp": "2026-06-07T13:30:00Z"
|
||
}
|
||
```
|
||
|
||
**ON_FILE_DELETED**：
|
||
|
||
```json
|
||
{
|
||
"id": "uuid",
|
||
"bizType": "SYS_APP_CERT",
|
||
"type": "SYS_APP_CERT_DELETED",
|
||
"fileId": 1001,
|
||
"url": "https://oss.../xxx",
|
||
"storageType": "ALIYUN",
|
||
"uploaderId": 42,
|
||
"tenantId": 0,
|
||
"timestamp": "2026-06-07T13:30:00Z"
|
||
}
|
||
```
|
||
|
||
### 8.3 订阅方模板（`rui-service-system` 示例）
|
||
|
||
```java
|
||
@MqTopic(MqTopicConstants.ON_UPLOAD)
|
||
@Component
|
||
@RequiredArgsConstructor
|
||
public class SysAppCertUploadConsumer implements MqConsumer {
|
||
private final ISysAppService sysAppService;
|
||
|
||
@Override
|
||
public void onMessage(String messageId, String topic, JSONObject data) {
|
||
if (!FileBizType.uploadType("SYS_APP_CERT").equals(data.getString("type"))) return;
|
||
String url = data.getString("url");
|
||
JSONObject extra = data.getJSONObject("extra");
|
||
String appId = extra == null ? null : extra.getString("appId");
|
||
if (appId != null) {
|
||
sysAppService.appendCertificate(appId, url);
|
||
}
|
||
}
|
||
}
|
||
```
|
||
|
||
---
|
||
|
||
## 9. 配置设计
|
||
|
||
### 9.1 公共配置（`rui-common.yaml` Nacos / 本地兜底）
|
||
|
||
```yaml
|
||
rui:
|
||
file:
|
||
active: local # 默认后端
|
||
default-max-size: 10MB
|
||
biz-types:
|
||
COMMON:
|
||
max-size: 10MB
|
||
allowed-extensions: [] # 空 = 全部
|
||
SYS_APP_CERT:
|
||
max-size: 5MB
|
||
allowed-extensions: [pem, crt, key, p12]
|
||
USER_AVATAR:
|
||
max-size: 2MB
|
||
allowed-extensions: [jpg, jpeg, png, webp]
|
||
CMS_BANNER:
|
||
max-size: 5MB
|
||
allowed-extensions: [jpg, jpeg, png, webp, gif]
|
||
```
|
||
|
||
### 9.2 服务专属配置（`rui-service-storage/application.yml`）
|
||
|
||
```yaml
|
||
server:
|
||
port: 9400
|
||
spring:
|
||
application:
|
||
name: rui-service-storage
|
||
servlet:
|
||
multipart:
|
||
max-file-size: 10MB # 兜底
|
||
max-request-size: 50MB # 批量上传场景预留
|
||
```
|
||
|
||
### 9.3 OSS 凭据（Nacos rui-service-storage.yaml）
|
||
|
||
```yaml
|
||
rui:
|
||
file:
|
||
aliyun:
|
||
enabled: false
|
||
endpoint: oss-cn-shanghai.aliyuncs.com
|
||
access-key: ${ALIYUN_AK}
|
||
secret-key: ${ALIYUN_SK}
|
||
bucket: rui-storage
|
||
url-prefix: https://rui-storage.oss-cn-shanghai.aliyuncs.com
|
||
base-path: cert/
|
||
tencent:
|
||
enabled: false
|
||
secret-id: ${TENCENT_SID}
|
||
secret-key: ${TENCENT_SKEY}
|
||
region: ap-shanghai
|
||
bucket: rui-storage-1300000000
|
||
url-prefix: https://rui-storage-1300000000.cos.ap-shanghai.myqcloud.com
|
||
base-path: cert/
|
||
local:
|
||
base-path: ${user.home}/.rui/upload/
|
||
url-prefix: /api/storage/local/ # 通过 storage 服务自己代理返回
|
||
```
|
||
|
||
### 9.4 Nacos 配置规则
|
||
|
||
按 `docs/ai-skills/nacos-config-rules.md`：
|
||
|
||
- `rui-common.yaml` 管 `rui.file.biz-types` 等共享
|
||
- `rui-service-storage.yaml` 管端口 + 三个后端的凭据
|
||
- 不重复：业务模块不需要 import storage 专属配置
|
||
|
||
---
|
||
|
||
## 10. 鉴权与安全
|
||
|
||
1. **JWT 校验**：`@EnableResourceServer` + `rui-common-security` 自动校验
|
||
2. **权限注解**：`@AutoPermission("sys:file:upload")` 类级默认；查询/删除按方法级覆盖
|
||
3. **大小限制**：双重防护：Spring `multipart.max-file-size` + 业务校验 `maxSize`
|
||
4. **扩展名白名单**：`bizType` 配置驱动，未匹配返回 400
|
||
5. **文件名安全**：存储文件名采用 `uuid + 原扩展名`，避免路径穿越
|
||
6. **不存敏感信息**：日志只记录 `fileId` 和 `bizType`，不打原文件名或 URL
|
||
7. **跨服务调用**：上传接口需要 `sys:file:upload` 权限，订阅方处理失败不影响主链路
|
||
|
||
---
|
||
|
||
## 11. 边界与不做
|
||
|
||
| 边界 | 说明 |
|
||
|------|------|
|
||
| 不做文件预览/转码 | 单纯的存储 + URL 返回，预览由前端/调用方实现 |
|
||
| 不做分片上传 | MVP 先支持单文件 10MB，分片后续按需 |
|
||
| 不做断点续传 | 同上 |
|
||
| 不做租户独立 bucket | MVP 用共享 bucket + 路径前缀隔离 |
|
||
| 不做内容审查/反垃圾 | 业务层后续扩展 |
|
||
| 不做软删除恢复 | 物理不可恢复，按 `deleted=1` 软标记 |
|
||
| 不做多文件上传 | 单文件接口；批量由前端循环或后续加 `batch` 接口 |
|
||
|
||
---
|
||
|
||
## 12. 验收标准
|
||
|
||
- [ ] `POST /storage/upload` 上传 .pem 文件返回标准 `Result` 格式，`data.url` 可访问
|
||
- [ ] `POST /storage/upload` 传 11MB 文件返回 400
|
||
- [ ] `POST /storage/upload` 传 .exe + `bizType=SYS_APP_CERT` 返回 400
|
||
- [ ] `POST /storage/upload` 传 `bizType=INVALID_TYPE` 返回 400
|
||
- [ ] 上传成功后 Redis 收到 `ON_UPLOAD` 消息，payload 包含 `type=SYS_APP_CERT_UPLOAD`
|
||
- [ ] 删除后 Redis 收到 `ON_FILE_DELETED` 消息
|
||
- [ ] 无 JWT 调上传接口返回 401
|
||
- [ ] 无 `sys:file:upload` 权限调上传返回 403
|
||
- [ ] `rui-service-starter` 启动后 `StorageApplication` 同样可启动
|
||
- [ ] Gitea #4 关闭
|
||
- [ ] `mvn clean compile` 全部模块通过
|
||
- [ ] 关键 commit 推送至 `origin/main`
|