526 lines
12 KiB
Markdown
526 lines
12 KiB
Markdown
# API 设计规范
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> 睿核科技通用平台框架 RESTful API 统一设计标准
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---
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## 一、接口分类
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| 分类 | 路径前缀 | 认证 | 说明 |
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|------|---------|------|------|
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| **对外接口** | `/{模块}/api/**` | OAuth2 Token | 对外提供的业务接口 |
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| **内部接口** | `/{模块}/inner/**` | `@Inner` + `INTERNAL_REQUEST` | 微服务间 Feign 调用 |
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| **入口接口** | `/{模块}/entry/**` | 无需认证 | 对外入口(登录、注册) |
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| **回调接口** | `/{模块}/notify/**` | 无需认证 | 第三方回调(支付、Webhook) |
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| **管理接口** | `/{模块}/admin/**` | 需管理员权限 | 后台管理 |
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---
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## 二、URL 设计规范
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### 2.1 对外接口(RESTful)
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```
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GET /{version}/{模块}/{资源} # 列表查询
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GET /{version}/{模块}/{资源}/{id} # 详情查询
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POST /{version}/{模块}/{资源} # 新增
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PUT /{version}/{模块}/{资源}/{id} # 全量更新
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PATCH /{version}/{模块}/{资源}/{id} # 局部更新
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DELETE /{version}/{模块}/{资源}/{id} # 删除
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```
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**示例**:
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```
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GET /v1/user/users?page=1&size=10 # 查询用户列表
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GET /v1/user/users/1001 # 查询用户详情
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POST /v1/user/users # 新增用户
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PUT /v1/user/users/1001 # 全量更新用户
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PATCH /v1/user/users/1001 # 局部更新(如只改状态)
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DELETE /v1/user/users/1001 # 删除用户
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```
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### 2.2 内部接口(Feign)
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```
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GET /{模块}/inner/{功能}/{方法}
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```
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**示例**:
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```
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GET /user/inner/auth/loadByUsername/{username}
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GET /system/inner/client/getById/{clientId}
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```
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### 2.3 版本控制
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- **URI 版本**(推荐):`/v1/user/users`
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- **Header 版本**(可选):`Accept: application/vnd.rui.v1+json`
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---
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## 三、请求规范
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### 3.1 HTTP 方法
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| 方法 | 用途 | 幂等性 |
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|------|------|--------|
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| GET | 查询 | ✅ |
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| POST | 新增/提交 | ❌ |
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| PUT | 全量更新 | ✅ |
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| PATCH | 局部更新 | ❌ |
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| DELETE | 删除 | ✅ |
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### 3.2 Content-Type
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```
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Content-Type: application/json; charset=utf-8
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```
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### 3.3 请求头规范
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| Header | 必填 | 说明 |
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|--------|------|------|
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| Authorization | 是(除 entry/notify) | `Bearer {access_token}` |
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| Content-Type | 是 | `application/json` |
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| X-Request-Id | 否 | 请求追踪 ID(网关自动生成) |
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| X-Tenant-Id | 否 | 租户 ID(后端自动注入) |
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| Accept-Language | 否 | 语言偏好 `zh-CN` / `en-US` |
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### 3.4 分页参数
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```
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GET /v1/user/users?page=1&size=10&sort=createdAt,desc
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```
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| 参数 | 类型 | 默认值 | 说明 |
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|------|------|--------|------|
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| page | int | 1 | 当前页码(从1开始) |
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| size | int | 10 | 每页条数(最大100) |
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| sort | string | createdAt,desc | 排序字段和方向 |
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### 3.5 查询参数
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```
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GET /v1/user/users?username=admin&status=1&createdAt_start=2024-01-01&createdAt_end=2024-12-31
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```
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**规则**:
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- 精确匹配:字段名直接等于值 `status=1`
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- 模糊匹配:字段名加后缀 `_like` `username_like=admin`
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- 范围查询:字段名加后缀 `_start` / `_end` `createdAt_start=2024-01-01`
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- 多值查询:字段名加后缀 `_in` `status_in=1,2`
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---
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## 四、响应规范
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### 4.1 统一响应格式
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```json
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{
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"code": 200,
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"msg": "操作成功",
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"data": {}
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}
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```
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### 4.2 分页响应格式
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```json
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{
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"code": 200,
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"msg": "操作成功",
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"data": {
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"records": [],
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"total": 100,
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"size": 10,
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"current": 1,
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"pages": 10
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}
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}
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```
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### 4.3 HTTP 状态码
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| 状态码 | 含义 | 使用场景 |
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|--------|------|---------|
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| 200 | OK | 查询成功、更新成功 |
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| 201 | Created | 新增成功 |
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| 204 | No Content | 删除成功(无返回体) |
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| 400 | Bad Request | 参数校验失败 |
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| 401 | Unauthorized | 未登录/Token 过期 |
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| 403 | Forbidden | 无权限访问 |
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| 404 | Not Found | 资源不存在 |
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| 409 | Conflict | 资源冲突(如重复提交) |
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| 429 | Too Many Requests | 请求过于频繁 |
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| 500 | Internal Server Error | 服务器内部错误 |
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### 4.4 错误码规范
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| 区间 | 模块 | 示例 |
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|------|------|------|
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| 1000-1999 | 通用 | 1001: 参数校验失败, 1002: 资源不存在 |
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| 2000-2999 | 用户模块 | 2001: 用户名已存在, 2002: 密码错误 |
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| 3000-3999 | 系统模块 | 3001: 字典不存在, 3002: 配置错误 |
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| 4000-4999 | 认证模块 | 4001: Token 过期, 4002: 无权访问 |
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| 5000-5999 | 文件模块 | 5001: 上传失败, 5002: 文件过大 |
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| 6000-6999 | 消息模块 | 6001: 发送失败, 6002: 模板不存在 |
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**错误响应示例**:
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```json
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{
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"code": 2001,
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"msg": "用户名已存在",
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"data": null
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}
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```
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---
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## 五、Controller 命名与路径映射
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### 5.1 命名规则
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| 类型 | Controller 命名 | 路径 | 说明 |
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|------|----------------|------|------|
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| 对外业务 | `UserController` | `/v1/user/users/**` | 常规 CRUD |
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| 内部调用 | `UserInnerController` | `/user/inner/**` | Feign 调用 |
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| 对外入口 | `UserEntryController` | `/user/entry/**` | 免认证入口 |
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| 第三方回调 | `PayNotifyController` | `/pay/notify/**` | Webhook |
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| 后台管理 | `UserAdminController` | `/v1/user/admin/**` | 管理接口 |
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### 5.2 方法命名
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| 操作 | 方法名 | HTTP | 路径 |
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|------|--------|------|------|
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| 列表 | `list` / `page` | GET | `/{资源}` |
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| 详情 | `getById` | GET | `/{资源}/{id}` |
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| 新增 | `add` / `save` | POST | `/{资源}` |
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| 更新 | `update` / `edit` | PUT | `/{资源}/{id}` |
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| 局部更新 | `patch` | PATCH | `/{资源}/{id}` |
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| 删除 | `remove` / `delete` | DELETE | `/{资源}/{id}` |
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| 批量删除 | `batchRemove` | DELETE | `/{资源}/batch` |
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| 导出 | `export` | GET | `/{资源}/export` |
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| 导入 | `import` | POST | `/{资源}/import` |
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---
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## 六、Swagger 注解规范
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### 6.1 Controller 注解
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```java
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@Tag(name = "用户管理", description = "用户相关接口")
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@RestController
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@RequestMapping("/v1/user/users")
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public class UserController {
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@Operation(summary = "查询用户列表", description = "支持分页、排序、条件查询")
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@GetMapping
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public Result<PageResult<UserVO>> list(
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@Parameter(description = "页码") @RequestParam(defaultValue = "1") Integer page,
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@Parameter(description = "每页条数") @RequestParam(defaultValue = "10") Integer size) {
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// ...
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}
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@Operation(summary = "新增用户")
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@PostMapping
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public Result<Long> add(@RequestBody @Valid UserDTO dto) {
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// ...
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}
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}
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```
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### 6.2 DTO / VO 注解
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```java
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@Schema(description = "用户新增DTO")
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@Data
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public class UserDTO {
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@Schema(description = "用户名", requiredMode = Schema.RequiredMode.REQUIRED, example = "admin")
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@NotBlank(message = "用户名不能为空")
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@Size(min = 2, max = 50, message = "用户名长度2-50字符")
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private String username;
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@Schema(description = "状态 0:禁用 1:启用", example = "1")
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private Integer status;
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}
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```
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---
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## 七、数据校验规范
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### 7.1 分组校验
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```java
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public interface AddGroup {} // 新增分组
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public interface UpdateGroup {} // 更新分组
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```
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### 7.2 使用示例
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```java
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@Data
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public class UserDTO {
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@NotNull(message = "ID不能为空", groups = UpdateGroup.class)
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private Long id;
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@NotBlank(message = "用户名不能为空", groups = {AddGroup.class, UpdateGroup.class})
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private String username;
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}
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// Controller
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@PostMapping
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public Result<Long> add(@RequestBody @Validated(AddGroup.class) UserDTO dto) {
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// 新增
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}
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@PutMapping("/{id}")
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public Result<Void> update(@RequestBody @Validated(UpdateGroup.class) UserDTO dto) {
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// 更新
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}
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```
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---
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## 八、Feign 接口规范
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### 8.1 接口定义
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```java
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/**
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* 远程用户服务
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*/
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@Headers("INTERNAL_REQUEST: INTERNAL")
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@FeignClient(
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contextId = "remoteUserService",
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value = "${feign.providers.user:rui-service-user}",
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path = "/user/inner"
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)
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public interface RemoteUserService {
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@GetMapping("/auth/loadByUsername/{username}")
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Result<Map<String, Object>> loadUser(@PathVariable String username);
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}
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```
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### 8.2 调用规范
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```java
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@Service
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@RequiredArgsConstructor
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public class UserRemoteService {
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private final RemoteUserService remoteUserService;
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public UserVO getUserById(Long userId) {
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Result<UserVO> result = remoteUserService.getById(userId);
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if (result.isSuccess()) {
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return result.getData();
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}
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throw new BizException(result.getCode(), result.getMsg());
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}
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}
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```
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---
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## 九、文件上传接口规范
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### 9.1 单文件上传
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```
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POST /v1/file/files/upload
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Content-Type: multipart/form-data
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file: [二进制文件]
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module: user
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bizId: 1001
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```
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**响应**:
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```json
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{
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"code": 200,
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"msg": "上传成功",
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"data": {
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"fileId": "123456",
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"fileName": "avatar.jpg",
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"fileUrl": "https://oss.example.com/avatar/123456.jpg",
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"fileSize": 102400
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}
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}
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```
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### 9.2 多文件上传
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```
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POST /v1/file/files/batchUpload
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Content-Type: multipart/form-data
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files: [文件1, 文件2, 文件3]
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module: user
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```
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---
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## 十、导出接口规范
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### 10.1 Excel 导出
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```
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GET /v1/user/users/export?username=admin&status=1
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Accept: application/vnd.ms-excel
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```
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**响应**:
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```
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Content-Type: application/vnd.ms-excel
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Content-Disposition: attachment; filename="用户列表_20240101.xlsx"
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```
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### 10.2 CSV 导出
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```
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GET /v1/user/users/export?format=csv
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Accept: text/csv
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```
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---
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## 十一、WebSocket 接口规范(预留)
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```
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ws://gateway:9300/ws/{模块}/{topic}
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```
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**示例**:
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```
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ws://localhost:9300/ws/msg/notification # 消息通知
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ws://localhost:9300/ws/monitor/metrics # 实时监控
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```
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---
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## 十二、接口文档生成
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### 12.1 配置 SpringDoc
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```yaml
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springdoc:
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swagger-ui:
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path: /swagger-ui.html
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enabled: true
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api-docs:
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path: /v3/api-docs
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enabled: true
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group-configs:
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- group: 用户服务
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display-name: 用户服务 API
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paths-to-match: /v1/user/**
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- group: 系统服务
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display-name: 系统服务 API
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paths-to-match: /v1/system/**
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```
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### 12.2 访问地址
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#### Swagger UI 页面
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```
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http://localhost:9300/swagger-ui.html # 网关聚合文档
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http://localhost:9301/swagger-ui.html # 认证服务文档
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http://localhost:9302/swagger-ui.html # 系统服务文档
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http://localhost:9303/swagger-ui.html # 用户服务文档
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```
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#### Knife4j 增强 UI(推荐)
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```
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http://localhost:9300/doc.html # 网关聚合文档
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http://localhost:9301/doc.html # 认证服务文档
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http://localhost:9302/doc.html # 系统服务文档
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http://localhost:9303/doc.html # 用户服务文档
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```
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#### OpenAPI JSON 接口
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```
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http://localhost:9300/v3/api-docs # 网关聚合 API 文档
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http://localhost:9301/v3/api-docs # 认证服务 API 文档
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http://localhost:9302/v3/api-docs # 系统服务 API 文档
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http://localhost:9303/v3/api-docs # 用户服务 API 文档
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```
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---
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## 十三、Postman / APIFox 集合规范
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### 13.1 目录结构
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```
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睿核科技通用平台
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├── 01-认证中心
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│ ├── 获取Token
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│ ├── 刷新Token
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│ └── 退出登录
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├── 02-用户中心
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│ ├── 用户管理
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│ ├── 等级管理
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│ └── 用户查询
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├── 03-系统管理
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│ ├── 租户管理
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│ ├── 菜单管理
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│ ├── 角色管理
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│ ├── 字典管理
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│ └── 参数配置
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├── 04-文件管理
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│ ├── 文件上传
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│ └── 文件下载
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└── 99-内部接口(Feign)
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├── 用户服务
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└── 系统服务
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```
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### 13.2 环境变量
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```json
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{
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"baseUrl": "http://localhost:9300",
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"token": "{{login_response_token}}",
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"tenantId": "1"
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}
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```
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---
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## 十四、接口变更管理
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### 14.1 变更类型
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| 类型 | 说明 | 版本处理 |
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|------|------|---------|
|
||
| 新增接口 | 新增资源/功能 | 当前版本可用 |
|
||
| 新增字段 | 请求/响应增加字段 | 当前版本可用(兼容) |
|
||
| 废弃字段 | 字段标记 deprecated | 当前版本可用,下版本移除 |
|
||
| 废弃接口 | 接口标记 deprecated | 保留至少2个版本后移除 |
|
||
| 破坏性变更 | 字段删除/类型变更 | 升级版本号(v1 → v2) |
|
||
|
||
### 14.2 版本迭代策略
|
||
|
||
```
|
||
v1.0 —— 初始版本
|
||
v1.1 —— 新增字段(兼容)
|
||
v1.2 —— 新增接口(兼容)
|
||
v2.0 —— 破坏性变更(不兼容)
|
||
```
|
||
|
||
---
|
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|
||
> **文档版本**: v1.0
|
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> **创建日期**: 2026-05-28
|
||
> **适用范围**: 睿核科技通用平台框架所有 RESTful API
|