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- 添加Electron + React + TypeScript基础框架 - 实现学生管理、积分流水、理由管理功能 - 添加主题切换和暗黑模式支持 - 配置数据库和WebSocket同步功能 - 完善项目文档和构建配置
251 lines
5.1 KiB
Markdown
251 lines
5.1 KiB
Markdown
# SecScoreDB WebSocket JSON Protocol Specification v1.0
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## 1. 协议概述 (Overview)
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- **传输层**: WebSocket
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- **数据格式**: JSON (UTF-8)
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- **通信模式**: 全双工异步通信 (Request-Response)
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- **匹配机制**: 客户端生成唯一 `seq`,服务端在响应中原样返回,用于关联请求与响应。
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---
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## 2. 通信信封 (Message Envelope)
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所有通信消息必须包含以下基础字段。
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### 2.1 客户端请求 (Request)
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| 字段 | 类型 | 必填 | 说明 |
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| :--- | :--- | :--- | :--- |
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| **`seq`** | String | Yes | 请求唯一序列号 (如 UUID) |
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| **`category`** | String | Yes | 资源类别: `"system"`, `"student"`, `"group"`, `"event"` |
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| **`action`** | String | Yes | 操作动作: `"define"`, `"create"`, `"query"`, `"update"`, `"delete"` |
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| **`payload`** | Object | Yes | 具体操作参数,结构依 `action` 而定 |
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### 2.2 服务端响应 (Response)
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| 字段 | 类型 | 必填 | 说明 |
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| :--- | :--- | :--- | :--- |
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| **`seq`** | String | Yes | 对应请求的 `seq` |
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| **`status`** | String | Yes | `"ok"` 或 `"error"` |
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| **`code`** | Int | Yes | 状态码 (见第 6 节) |
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| **`message`** | String | No | 错误描述或提示信息 |
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| **`data`** | Object | No | 成功时的返回数据 |
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---
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## 3. 系统管理 (System Category)
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### 3.1 定义 Schema (Define)
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在操作数据前,必须定义动态字段结构。
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**Request:**
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```json
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{
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"category": "system",
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"action": "define",
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"payload": {
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"target": "student", // 或 "group"
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"schema": {
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"name": "string",
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"age": "int",
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"score": "double",
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"active": "int"
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}
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}
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}
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```
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---
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## 4. 数据资源操作 (Student & Group Category)
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以下示例以 `category: "student"` 为例,`group` 同理。
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### 4.1 批量创建/导入 (Batch Create)
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**核心规则**:
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1. `id` 为 `null` 时,服务端自动分配 ID。
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2. `id` 有值时,强制使用该 ID (导入模式)。
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3. 使用 `index` 锚定请求项,确保批量回包的对应关系。
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**Request:**
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```json
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{
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"category": "student",
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"action": "create",
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"payload": {
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"items": [
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{
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"index": 0, // 客户端临时索引
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"id": null, // [请求分配ID]
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"data": { "name": "Alice", "age": 18, "score": 95.5 }
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},
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{
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"index": 1,
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"id": 10086, // [强制指定ID]
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"data": { "name": "Bob", "age": 20 }
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}
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]
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}
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}
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```
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**Response Data:**
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```json
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{
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"count": 2, // 成功数量
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"results": [
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{
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"index": 0,
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"success": true,
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"id": 1001 // 服务端分配的新 ID
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},
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{
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"index": 1,
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"success": true,
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"id": 10086
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}
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]
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}
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```
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### 4.2 逻辑查询 (Query)
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基于 AST 将 JSON 映射为 C++ Lambda。
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**Request:**
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```json
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{
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"category": "student",
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"action": "query",
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"payload": {
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"logic": {
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"op": "AND", // 根节点逻辑: AND, OR
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"rules": [
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{ "field": "score", "op": ">=", "val": 90.0 },
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{
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"op": "OR",
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"rules": [
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{ "field": "age", "op": "<", "val": 20 },
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{ "field": "name", "op": "==", "val": "Alice" }
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]
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}
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]
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}
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}
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}
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```
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*支持的操作符 (`op`): `==`, `!=`, `>`, `<`, `>=`, `<=`*
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**Response Data:**
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```json
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{
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"items": [
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{
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"id": 1001,
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"data": { "name": "Alice", "age": 18, "score": 95.5 }
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}
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]
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}
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```
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### 4.3 更新 (Update)
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**Request:**
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```json
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{
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"category": "student",
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"action": "update",
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"payload": {
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"id": 1001,
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"set": {
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"score": 98.0, // 仅更新指定字段
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"age": 19
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}
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}
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}
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```
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### 4.4 删除 (Delete)
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**Request:**
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```json
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{
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"category": "student",
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"action": "delete",
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"payload": {
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"id": 1001
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}
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}
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```
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---
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## 5. 事件操作 (Event Category)
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### 5.1 添加事件 (Create)
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**Request:**
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```json
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{
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"category": "event",
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"action": "create",
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"payload": {
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"id": null, // 必须为 null
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"type": 1, // 1=Student, 2=Group
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"ref_id": 1001, // 关联对象的 ID
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"desc": "Score adjustment",
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"val_prev": 95.5,
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"val_curr": 98.0
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}
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}
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```
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**Response Data:**
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```json
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{
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"id": 501, // 新生成的 Event ID
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"timestamp": 1710000000
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}
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```
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### 5.2 标记擦除 (Update)
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**Request:**
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```json
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{
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"category": "event",
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"action": "update",
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"payload": {
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"id": 501,
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"erased": true
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}
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}
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```
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---
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## 6. 状态码定义 (Status Codes)
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| Code | Meaning | Description |
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| :--- | :--- | :--- |
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| **200** | OK | 请求成功执行 |
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| **400** | Bad Request | JSON 格式错误、缺少必填字段或 `action` 不支持 |
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| **404** | Not Found | 指定的 ID 不存在 |
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| **422** | Unprocessable | 数据类型不匹配 (如给 Int 字段传 String) |
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| **500** | Internal Error | 核心内部 C++ 异常 |
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