feat: 添加路由装饰器系统和全局异常处理

- 新增装饰器支持(@Get, @Post, @Put, @Delete, @Patch, @Controller) - 实现路由自动注册机制(RouteScanner) - 添加全局异常处理中间件(Exception) - 实现统一响应体格式(ApiResponse) - 新增请求体解析中间件(BodyParser) - 重构控制器为类模式，支持装饰器路由 - 添加示例用户控制器(UserController) - 更新TypeScript配置支持装饰器 - 添加reflect-metadata依赖 - 完善项目文档 Breaking Changes: - 控制器现在返回数据而不是直接设置ctx.body - 新增统一的API响应格式
2025-09-01 00:14:17 +08:00
parent 47f36cd625
commit 63c1e4df63
15 changed files with 865 additions and 15 deletions
--- a/apps/server/README-decorators.md
+++ b/apps/server/README-decorators.md
@@ -0,0 +1,147 @@
+# 路由装饰器使用指南
+
+本项目已支持使用装饰器来自动注册路由，让控制器代码更加简洁和声明式。
+
+## 快速开始
+
+### 1. 创建控制器
+
+```typescript
+import type { Context } from 'koa';
+import { Controller, Get, Post, Put, Delete } from '../decorators/route.ts';
+import { BusinessError } from '../middlewares/exception.ts';
+
+@Controller('/api-prefix') // 控制器路由前缀
+export class MyController {
+
+  @Get('/users')
+  async getUsers(ctx: Context) {
+    // 直接返回数据，自动包装成统一响应格式
+    return { users: [] };
+  }
+
+  @Post('/users')
+  async createUser(ctx: Context) {
+    const userData = ctx.request.body;
+    // 业务逻辑处理...
+    return { id: 1, ...userData };
+  }
+
+  @Put('/users/:id')
+  async updateUser(ctx: Context) {
+    const { id } = ctx.params;
+    const userData = ctx.request.body;
+    // 业务逻辑处理...
+    return { id, ...userData };
+  }
+
+  @Delete('/users/:id')
+  async deleteUser(ctx: Context) {
+    const { id } = ctx.params;
+    // 业务逻辑处理...
+    return { success: true };
+  }
+}
+```
+
+### 2. 注册控制器
+
+在 `middlewares/router.ts` 的 `registerDecoratorRoutes()` 方法中添加你的控制器：
+
+```typescript
+this.routeScanner.registerControllers([
+  ApplicationController,
+  UserController,
+  MyController  // 添加你的控制器
+]);
+```
+
+## 可用装饰器
+
+### HTTP方法装饰器
+
+- `@Get(path)` - GET 请求
+- `@Post(path)` - POST 请求
+- `@Put(path)` - PUT 请求
+- `@Delete(path)` - DELETE 请求
+- `@Patch(path)` - PATCH 请求
+
+### 控制器装饰器
+
+- `@Controller(prefix)` - 控制器路由前缀
+
+## 路径拼接规则
+
+最终的API路径 = 全局前缀 + 控制器前缀 + 方法路径
+
+例如：
+- 全局前缀：`/api`
+- 控制器前缀：`/user`
+- 方法路径：`/list`
+- 最终路径：`/api/user/list`
+
+## 响应格式
+
+控制器方法只需要返回数据，系统会自动包装成统一响应格式：
+
+```json
+{
+  "code": 0,
+  "message": "操作成功",
+  "data": { /* 控制器返回的数据 */ },
+  "timestamp": 1693478400000
+}
+```
+
+## 异常处理
+
+可以抛出 `BusinessError` 来返回业务异常：
+
+```typescript
+import { BusinessError } from '../middlewares/exception.ts';
+
+@Get('/users/:id')
+async getUser(ctx: Context) {
+  const { id } = ctx.params;
+
+  if (!id) {
+    throw new BusinessError('用户ID不能为空', 1001, 400);
+  }
+
+  // 正常业务逻辑...
+  return userData;
+}
+```
+
+## 路由参数
+
+支持标准的Koa路由参数：
+
+```typescript
+@Get('/users/:id')           // 路径参数
+@Get('/users/:id/posts/:pid') // 多个参数
+@Get('/search')              // 查询参数通过 ctx.query 获取
+```
+
+## 现有路由
+
+项目中已注册的路由：
+
+### ApplicationController
+- `GET /api/application/list` - 获取应用列表
+- `GET /api/application/detail/:id` - 获取应用详情
+
+### UserController
+- `GET /api/user/list` - 获取用户列表
+- `GET /api/user/detail/:id` - 获取用户详情
+- `POST /api/user` - 创建用户
+- `PUT /api/user/:id` - 更新用户
+- `DELETE /api/user/:id` - 删除用户
+- `GET /api/user/search` - 搜索用户
+
+## 注意事项
+
+1. 需要安装依赖：`pnpm add reflect-metadata`
+2. TypeScript配置需要开启装饰器支持
+3. 控制器类需要导出并在路由中间件中注册
+4. 控制器方法应该返回数据而不是直接操作 `ctx.body`
--- a/apps/server/app.ts
+++ b/apps/server/app.ts
@@ -1,9 +1,10 @@
+import 'reflect-metadata';
 import Koa from 'koa';
-import { registerMiddlewares } from './middlewares/index.ts';
+import { initMiddlewares } from './middlewares/index.ts';

 const app = new Koa();

-registerMiddlewares(app);
+initMiddlewares(app);

 app.listen(3000, () => {
  console.log('server started at http://localhost:3000');
--- a/apps/server/controllers/application.ts
+++ b/apps/server/controllers/application.ts
@@ -1,11 +1,50 @@
 import type { Context } from 'koa';
 import prisma from '../libs/db.ts';
+import { BusinessError } from '../middlewares/exception.ts';
+import { Controller, Get } from '../decorators/route.ts';

-export async function list(ctx: Context) {
+@Controller('/application')
+export class ApplicationController {
+  @Get('/list')
+  async list(ctx: Context) {
+    try {
      const list = await prisma.application.findMany({
        where: {
          valid: 1,
        },
      });
-  ctx.body = list;
+
+      // 直接返回数据，由路由中间件统一包装成响应格式
+      return list;
+    } catch (error) {
+      // 抛出业务异常，由全局异常处理中间件捕获
+      throw new BusinessError('获取应用列表失败', 1001, 500);
    }
+  }
+
+  @Get('/detail/:id')
+  async detail(ctx: Context) {
+    try {
+      const { id } = ctx.params;
+      const app = await prisma.application.findUnique({
+        where: { id: Number(id) },
+      });
+
+      if (!app) {
+        throw new BusinessError('应用不存在', 1002, 404);
+      }
+
+      return app;
+    } catch (error) {
+      if (error instanceof BusinessError) {
+        throw error;
+      }
+      throw new BusinessError('获取应用详情失败', 1003, 500);
+    }
+  }
+}
+
+// 保持向后兼容的导出方式
+const applicationController = new ApplicationController();
+export const list = applicationController.list.bind(applicationController);
+export const detail = applicationController.detail.bind(applicationController);
--- a/apps/server/controllers/user.ts
+++ b/apps/server/controllers/user.ts
@@ -0,0 +1,117 @@
+import type { Context } from 'koa';
+import { Controller, Get, Post, Put, Delete } from '../decorators/route.ts';
+import { BusinessError } from '../middlewares/exception.ts';
+
+/**
+ * 用户控制器
+ */
+@Controller('/user')
+export class UserController {
+
+  @Get('/list')
+  async list(ctx: Context) {
+    // 模拟用户列表数据
+    const users = [
+      { id: 1, name: 'Alice', email: 'alice@example.com', status: 'active' },
+      { id: 2, name: 'Bob', email: 'bob@example.com', status: 'inactive' },
+      { id: 3, name: 'Charlie', email: 'charlie@example.com', status: 'active' }
+    ];
+
+    return users;
+  }
+
+  @Get('/detail/:id')
+  async detail(ctx: Context) {
+    const { id } = ctx.params;
+
+    // 模拟根据ID查找用户
+    const user = {
+      id: Number(id),
+      name: 'User ' + id,
+      email: `user${id}@example.com`,
+      status: 'active',
+      createdAt: new Date().toISOString()
+    };
+
+    if (Number(id) > 100) {
+      throw new BusinessError('用户不存在', 2001, 404);
+    }
+
+    return user;
+  }
+
+  @Post('')
+  async create(ctx: Context) {
+    const body = (ctx.request as any).body;
+
+    // 模拟创建用户
+    const newUser = {
+      id: Date.now(),
+      ...body,
+      createdAt: new Date().toISOString(),
+      status: 'active'
+    };
+
+    return newUser;
+  }
+
+  @Put('/:id')
+  async update(ctx: Context) {
+    const { id } = ctx.params;
+    const body = (ctx.request as any).body;
+
+    // 模拟更新用户
+    const updatedUser = {
+      id: Number(id),
+      ...body,
+      updatedAt: new Date().toISOString()
+    };
+
+    return updatedUser;
+  }
+
+  @Delete('/:id')
+  async delete(ctx: Context) {
+    const { id } = ctx.params;
+
+    if (Number(id) === 1) {
+      throw new BusinessError('管理员账户不能删除', 2002, 403);
+    }
+
+    // 模拟删除操作
+    return {
+      success: true,
+      message: `用户 ${id} 已删除`,
+      deletedAt: new Date().toISOString()
+    };
+  }
+
+  @Get('/search')
+  async search(ctx: Context) {
+    const { keyword, status } = ctx.query;
+
+    // 模拟搜索逻辑
+    let results = [
+      { id: 1, name: 'Alice', email: 'alice@example.com', status: 'active' },
+      { id: 2, name: 'Bob', email: 'bob@example.com', status: 'inactive' }
+    ];
+
+    if (keyword) {
+      results = results.filter(user =>
+        user.name.toLowerCase().includes(String(keyword).toLowerCase()) ||
+        user.email.toLowerCase().includes(String(keyword).toLowerCase())
+      );
+    }
+
+    if (status) {
+      results = results.filter(user => user.status === status);
+    }
+
+    return {
+      keyword,
+      status,
+      total: results.length,
+      results
+    };
+  }
+}
--- a/apps/server/decorators/route.ts
+++ b/apps/server/decorators/route.ts
@@ -0,0 +1,102 @@
+import 'reflect-metadata';
+
+/**
+ * 路由元数据键
+ */
+export const ROUTE_METADATA_KEY = Symbol('route');
+
+/**
+ * HTTP 方法类型
+ */
+export type HttpMethod = 'GET' | 'POST' | 'PUT' | 'DELETE' | 'PATCH';
+
+/**
+ * 路由元数据接口
+ */
+export interface RouteMetadata {
+  method: HttpMethod;
+  path: string;
+  propertyKey: string;
+}
+
+/**
+ * 创建HTTP方法装饰器的工厂函数
+ */
+function createMethodDecorator(method: HttpMethod) {
+  return function (path: string = '') {
+    return function (target: any, propertyKey: string, descriptor: PropertyDescriptor) {
+      // 获取现有的路由元数据
+      const existingRoutes: RouteMetadata[] = (Reflect as any).getMetadata(ROUTE_METADATA_KEY, target.constructor) || [];
+
+      // 添加新的路由元数据
+      const newRoute: RouteMetadata = {
+        method,
+        path,
+        propertyKey
+      };
+
+      existingRoutes.push(newRoute);
+
+      // 保存路由元数据到类的构造函数上
+      (Reflect as any).defineMetadata(ROUTE_METADATA_KEY, existingRoutes, target.constructor);
+
+      return descriptor;
+    };
+  };
+}
+
+/**
+ * GET 请求装饰器
+ * @param path 路由路径
+ */
+export const Get = createMethodDecorator('GET');
+
+/**
+ * POST 请求装饰器
+ * @param path 路由路径
+ */
+export const Post = createMethodDecorator('POST');
+
+/**
+ * PUT 请求装饰器
+ * @param path 路由路径
+ */
+export const Put = createMethodDecorator('PUT');
+
+/**
+ * DELETE 请求装饰器
+ * @param path 路由路径
+ */
+export const Delete = createMethodDecorator('DELETE');
+
+/**
+ * PATCH 请求装饰器
+ * @param path 路由路径
+ */
+export const Patch = createMethodDecorator('PATCH');
+
+/**
+ * 控制器装饰器
+ * @param prefix 路由前缀
+ */
+export function Controller(prefix: string = '') {
+  return function <T extends { new (...args: any[]): {} }>(constructor: T) {
+    // 保存控制器前缀到元数据
+    (Reflect as any).defineMetadata('prefix', prefix, constructor);
+    return constructor;
+  };
+}
+
+/**
+ * 获取控制器的路由元数据
+ */
+export function getRouteMetadata(constructor: any): RouteMetadata[] {
+  return (Reflect as any).getMetadata(ROUTE_METADATA_KEY, constructor) || [];
+}
+
+/**
+ * 获取控制器的路由前缀
+ */
+export function getControllerPrefix(constructor: any): string {
+  return (Reflect as any).getMetadata('prefix', constructor) || '';
+}
--- a/apps/server/libs/route-scanner.ts
+++ b/apps/server/libs/route-scanner.ts
@@ -0,0 +1,166 @@
+import type Koa from 'koa';
+import KoaRouter from '@koa/router';
+import { getRouteMetadata, getControllerPrefix, type RouteMetadata } from '../decorators/route.ts';
+import { createAutoSuccessResponse } from '../middlewares/exception.ts';
+
+/**
+ * 控制器类型
+ */
+export interface ControllerClass {
+  new (...args: any[]): any;
+}
+
+/**
+ * 路由扫描器，用于自动注册装饰器标注的路由
+ */
+export class RouteScanner {
+  private router: KoaRouter;
+  private controllers: ControllerClass[] = [];
+
+  constructor(prefix: string = '/api') {
+    this.router = new KoaRouter({ prefix });
+  }
+
+  /**
+   * 注册控制器类
+   */
+  registerController(ControllerClass: ControllerClass): void {
+    this.controllers.push(ControllerClass);
+    this.scanController(ControllerClass);
+  }
+
+  /**
+   * 注册多个控制器类
+   */
+  registerControllers(controllers: ControllerClass[]): void {
+    controllers.forEach(controller => this.registerController(controller));
+  }
+
+  /**
+   * 扫描控制器并注册路由
+   */
+  private scanController(ControllerClass: ControllerClass): void {
+    // 创建控制器实例
+    const controllerInstance = new ControllerClass();
+
+    // 获取控制器的路由前缀
+    const controllerPrefix = getControllerPrefix(ControllerClass);
+
+    // 获取控制器的路由元数据
+    const routes: RouteMetadata[] = getRouteMetadata(ControllerClass);
+
+    // 注册每个路由
+    routes.forEach(route => {
+      const fullPath = this.buildFullPath(controllerPrefix, route.path);
+      const handler = this.wrapControllerMethod(controllerInstance, route.propertyKey);
+
+      // 根据HTTP方法注册路由
+      switch (route.method) {
+        case 'GET':
+          this.router.get(fullPath, handler);
+          break;
+        case 'POST':
+          this.router.post(fullPath, handler);
+          break;
+        case 'PUT':
+          this.router.put(fullPath, handler);
+          break;
+        case 'DELETE':
+          this.router.delete(fullPath, handler);
+          break;
+        case 'PATCH':
+          this.router.patch(fullPath, handler);
+          break;
+        default:
+          console.warn(`未支持的HTTP方法: ${route.method}`);
+      }
+
+      console.log(`注册路由: ${route.method} ${fullPath} -> ${ControllerClass.name}.${route.propertyKey}`);
+    });
+  }
+
+  /**
+   * 构建完整的路由路径
+   */
+  private buildFullPath(controllerPrefix: string, routePath: string): string {
+    // 清理和拼接路径
+    const cleanControllerPrefix = controllerPrefix.replace(/^\/+|\/+$/g, '');
+    const cleanRoutePath = routePath.replace(/^\/+|\/+$/g, '');
+
+    let fullPath = '';
+    if (cleanControllerPrefix) {
+      fullPath += '/' + cleanControllerPrefix;
+    }
+    if (cleanRoutePath) {
+      fullPath += '/' + cleanRoutePath;
+    }
+
+    // 如果路径为空，返回根路径
+    return fullPath || '/';
+  }
+
+  /**
+   * 包装控制器方法，统一处理响应格式
+   */
+  private wrapControllerMethod(instance: any, methodName: string) {
+    return async (ctx: Koa.Context, next: Koa.Next) => {
+      try {
+        // 调用控制器方法
+        const method = instance[methodName];
+        if (typeof method !== 'function') {
+          throw new Error(`控制器方法 ${methodName} 不存在或不是函数`);
+        }
+
+        // 绑定this并调用方法
+        const result = await method.call(instance, ctx, next);
+
+        // 如果控制器返回了数据，则包装成统一响应格式
+        if (result !== undefined) {
+          ctx.body = createAutoSuccessResponse(result);
+        }
+        // 如果控制器没有返回数据，说明已经自己处理了响应
+      } catch (error) {
+        // 错误由全局异常处理中间件处理
+        throw error;
+      }
+    };
+  }
+
+  /**
+   * 获取Koa路由器实例，用于应用到Koa应用中
+   */
+  getRouter(): KoaRouter {
+    return this.router;
+  }
+
+  /**
+   * 应用路由到Koa应用
+   */
+  applyToApp(app: Koa): void {
+    app.use(this.router.routes());
+    app.use(this.router.allowedMethods());
+  }
+
+  /**
+   * 获取已注册的路由信息（用于调试）
+   */
+  getRegisteredRoutes(): Array<{ method: string; path: string; controller: string; action: string }> {
+    const routes: Array<{ method: string; path: string; controller: string; action: string }> = [];
+
+    this.controllers.forEach(ControllerClass => {
+      const controllerPrefix = getControllerPrefix(ControllerClass);
+      const routeMetadata = getRouteMetadata(ControllerClass);
+
+      routeMetadata.forEach(route => {
+        routes.push({
+          method: route.method,
+          path: this.buildFullPath(controllerPrefix, route.path),
+          controller: ControllerClass.name,
+          action: route.propertyKey
+        });
+      });
+    });
+
+    return routes;
+  }
+}
--- a/apps/server/middlewares/body-parser.ts
+++ b/apps/server/middlewares/body-parser.ts
@@ -0,0 +1,46 @@
+import type Koa from 'koa';
+import type { Middleware } from './types.ts';
+
+/**
+ * 请求体解析中间件
+ */
+export class BodyParser implements Middleware {
+  apply(app: Koa): void {
+    // 使用动态导入来避免类型问题
+    app.use(async (ctx, next) => {
+      if (ctx.request.method === 'POST' ||
+          ctx.request.method === 'PUT' ||
+          ctx.request.method === 'PATCH') {
+
+        // 简单的JSON解析
+        if (ctx.request.type === 'application/json') {
+          try {
+            const chunks: Buffer[] = [];
+
+            ctx.req.on('data', (chunk) => {
+              chunks.push(chunk);
+            });
+
+            await new Promise((resolve) => {
+              ctx.req.on('end', () => {
+                const body = Buffer.concat(chunks).toString();
+                try {
+                  (ctx.request as any).body = JSON.parse(body);
+                } catch {
+                  (ctx.request as any).body = {};
+                }
+                resolve(void 0);
+              });
+            });
+          } catch (error) {
+            (ctx.request as any).body = {};
+          }
+        } else {
+          (ctx.request as any).body = {};
+        }
+      }
+
+      await next();
+    });
+  }
+}
--- a/apps/server/middlewares/exception.ts
+++ b/apps/server/middlewares/exception.ts
@@ -0,0 +1,138 @@
+import type Koa from 'koa';
+import type { Middleware } from './types.ts';
+
+/**
+ * 统一响应体结构
+ */
+export interface ApiResponse<T = any> {
+  code: number;        // 状态码：0表示成功，其他表示失败
+  message: string;     // 响应消息
+  data?: T;           // 响应数据
+  timestamp: number;   // 时间戳
+}
+
+/**
+ * 自定义业务异常类
+ */
+export class BusinessError extends Error {
+  public code: number;
+  public httpStatus: number;
+
+  constructor(message: string, code = 1000, httpStatus = 400) {
+    super(message);
+    this.name = 'BusinessError';
+    this.code = code;
+    this.httpStatus = httpStatus;
+  }
+}
+
+/**
+ * 全局异常处理中间件
+ */
+export class Exception implements Middleware {
+  apply(app: Koa): void {
+    app.use(async (ctx, next) => {
+      try {
+        await next();
+
+        // 如果没有设置响应体，则返回404
+        if (ctx.status === 404 && !ctx.body) {
+          this.sendResponse(ctx, 404, '接口不存在', null, 404);
+        }
+      } catch (error) {
+        console.error('全局异常捕获:', error);
+        this.handleError(ctx, error);
+      }
+    });
+  }
+
+  /**
+   * 处理错误
+   */
+  private handleError(ctx: Koa.Context, error: any): void {
+    if (error instanceof BusinessError) {
+      // 业务异常
+      this.sendResponse(ctx, error.code, error.message, null, error.httpStatus);
+    } else if (error.status) {
+      // Koa HTTP 错误
+      const message = error.status === 401 ? '未授权访问' :
+                     error.status === 403 ? '禁止访问' :
+                     error.status === 404 ? '资源不存在' :
+                     error.status === 422 ? '请求参数错误' :
+                     error.message || '请求失败';
+
+      this.sendResponse(ctx, error.status, message, null, error.status);
+    } else {
+      // 系统异常
+      const isDev = process.env.NODE_ENV === 'development';
+      const message = isDev ? error.message : '服务器内部错误';
+      const data = isDev ? { stack: error.stack } : null;
+
+      this.sendResponse(ctx, 500, message, data, 500);
+    }
+  }
+
+  /**
+   * 发送统一响应
+   */
+  private sendResponse(
+    ctx: Koa.Context,
+    code: number,
+    message: string,
+    data: any = null,
+    httpStatus = 200
+  ): void {
+    const response: ApiResponse = {
+      code,
+      message,
+      data,
+      timestamp: Date.now()
+    };
+
+    ctx.status = httpStatus;
+    ctx.body = response;
+    ctx.type = 'application/json';
+  }
+}
+
+/**
+ * 创建成功响应的辅助函数
+ */
+export function createSuccessResponse<T>(data: T, message = '操作成功'): ApiResponse<T> {
+  return {
+    code: 0,
+    message,
+    data,
+    timestamp: Date.now()
+  };
+}
+
+/**
+ * 创建成功响应的辅助函数（自动设置消息）
+ */
+export function createAutoSuccessResponse<T>(data: T): ApiResponse<T> {
+  let message = '操作成功';
+
+  // 根据数据类型自动生成消息
+  if (Array.isArray(data)) {
+    message = `获取列表成功，共${data.length}条记录`;
+  } else if (data && typeof data === 'object') {
+    message = '获取数据成功';
+  } else if (data === null || data === undefined) {
+    message = '操作完成';
+  }
+
+  return createSuccessResponse(data, message);
+}
+
+/**
+ * 创建失败响应的辅助函数
+ */
+export function createErrorResponse(code: number, message: string, data?: any): ApiResponse {
+  return {
+    code,
+    message,
+    data,
+    timestamp: Date.now()
+  };
+}
--- a/apps/server/middlewares/index.ts
+++ b/apps/server/middlewares/index.ts
@@ -1,10 +1,25 @@
 import { Router } from './router.ts';
 import { ResponseTime } from './responseTime.ts';
+import { Exception } from './exception.ts';
+import { BodyParser } from './body-parser.ts';
 import type Koa from 'koa';

-export function registerMiddlewares(app: Koa) {
-  const router = new Router();
+/**
+ * 初始化中间件
+ * @param app Koa
+ */
+export function initMiddlewares(app: Koa) {
+  // 全局异常处理中间件必须最先注册
+  const exception = new Exception();
+  exception.apply(app);
+
+  // 请求体解析中间件
+  const bodyParser = new BodyParser();
+  bodyParser.apply(app);
+
  const responseTime = new ResponseTime();
  responseTime.apply(app);
+
+  const router = new Router();
  router.apply(app);
 }
--- a/apps/server/middlewares/router.ts
+++ b/apps/server/middlewares/router.ts
@@ -1,18 +1,83 @@
 import KoaRouter from '@koa/router';
 import type Koa from 'koa';
 import type { Middleware } from './types.ts';
+import { createAutoSuccessResponse } from './exception.ts';
+import { RouteScanner } from '../libs/route-scanner.ts';
+import { ApplicationController } from '../controllers/application.ts';
+import { UserController } from '../controllers/user.ts';
 import * as application from '../controllers/application.ts';

+/**
+ * 包装控制器函数，统一处理响应格式
+ */
+function wrapController(controllerFn: Function) {
+  return async (ctx: Koa.Context, next: Koa.Next) => {
+    try {
+      // 调用控制器函数获取返回数据
+      const result = await controllerFn(ctx, next);
+
+      // 如果控制器返回了数据，则包装成统一响应格式
+      if (result !== undefined) {
+        ctx.body = createAutoSuccessResponse(result);
+      }
+      // 如果控制器没有返回数据，说明已经自己处理了响应
+    } catch (error) {
+      // 错误由全局异常处理中间件处理
+      throw error;
+    }
+  };
+}
+
 export class Router implements Middleware {
  private router: KoaRouter;
+  private routeScanner: RouteScanner;
+
  constructor() {
    this.router = new KoaRouter({
      prefix: '/api',
    });
-    this.router.get('/application/list', application.list);
+
+    // 初始化路由扫描器
+    this.routeScanner = new RouteScanner('/api');
+
+    // 注册装饰器路由
+    this.registerDecoratorRoutes();
+
+    // 注册传统路由（向后兼容）
+    this.registerTraditionalRoutes();
+  }
+
+  /**
+   * 注册装饰器路由
+   */
+  private registerDecoratorRoutes(): void {
+    // 注册所有使用装饰器的控制器
+    this.routeScanner.registerControllers([
+      ApplicationController,
+      UserController
+    ]);
+
+    // 输出注册的路由信息
+    const routes = this.routeScanner.getRegisteredRoutes();
+    console.log('装饰器路由注册完成:');
+    routes.forEach(route => {
+      console.log(`  ${route.method} ${route.path} -> ${route.controller}.${route.action}`);
+    });
+  }
+
+  /**
+   * 注册传统路由（向后兼容）
+   */
+  private registerTraditionalRoutes(): void {
+    // 保持对老版本的兼容，如果需要可以在这里注册非装饰器路由
+    // this.router.get('/application/list-legacy', wrapController(application.list));
  }

  apply(app: Koa) {
+    // 应用装饰器路由
+    this.routeScanner.applyToApp(app);
+
+    // 应用传统路由
    app.use(this.router.routes());
    app.use(this.router.allowedMethods());
  }
--- a/apps/server/package.json
+++ b/apps/server/package.json
@@ -12,7 +12,8 @@
  "dependencies": {
    "@koa/router": "^14.0.0",
    "@prisma/client": "^6.15.0",
-    "koa": "^3.0.1"
+    "koa": "^3.0.1",
+    "reflect-metadata": "^0.1.13"
  },
  "devDependencies": {
    "@tsconfig/node-ts": "^23.6.1",
--- a/apps/server/prisma/data/dev.db
+++ b/apps/server/prisma/data/dev.db
--- a/apps/server/tsconfig.json
+++ b/apps/server/tsconfig.json
@@ -2,5 +2,10 @@
  "extends": [
    "@tsconfig/node22/tsconfig.json",
    "@tsconfig/node-ts/tsconfig.json"
-  ]
+  ],
+  "compilerOptions": {
+    "experimentalDecorators": true,
+    "emitDecoratorMetadata": true,
+    "types": ["reflect-metadata"]
+  }
 }
--- a/package.json
+++ b/package.json
@@ -3,7 +3,7 @@
  "version": "1.0.0",
  "description": "",
  "scripts": {
-    "dev": "pnpm run dev:server && pnpm run dev:web"
+    "dev": "pnpm run dev"
  },
  "devDependencies": {
    "@biomejs/biome": "2.0.6"
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -23,6 +23,9 @@ importers:
      koa:
        specifier: ^3.0.1
        version: 3.0.1
+      reflect-metadata:
+        specifier: ^0.1.13
+        version: 0.1.14
    devDependencies:
      '@tsconfig/node-ts':
        specifier: ^23.6.1
@@ -1460,6 +1463,9 @@ packages:
  reduce-configs@1.1.1:
    resolution: {integrity: sha512-EYtsVGAQarE8daT54cnaY1PIknF2VB78ug6Zre2rs36EsJfC40EG6hmTU2A2P1ZuXnKAt2KI0fzOGHcX7wzdPw==}

+  reflect-metadata@0.1.14:
+    resolution: {integrity: sha512-ZhYeb6nRaXCfhnndflDK8qI6ZQ/YcWZCISRAWICW9XYqMUwjZM9Z0DveWX/ABN01oxSHwVxKQmxeYZSsm0jh5A==}
+
  resize-observer-polyfill@1.5.1:
    resolution: {integrity: sha512-LwZrotdHOo12nQuZlHEmtuXdqGoOD0OhaxopaNFxWzInpEgaLWoVuAMbTzixuosCx2nEG58ngzW3vxdWoxIgdg==}

@@ -2930,6 +2936,8 @@ snapshots:

  reduce-configs@1.1.1: {}

+  reflect-metadata@0.1.14: {}
+
  resize-observer-polyfill@1.5.1: {}

  resolve-from@4.0.0: {}