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
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@@ -1,11 +1,50 @@
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import type { Context } from 'koa';
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import prisma from '../libs/db.ts';
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import { BusinessError } from '../middlewares/exception.ts';
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import { Controller, Get } from '../decorators/route.ts';
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export async function list(ctx: Context) {
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const list = await prisma.application.findMany({
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where: {
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valid: 1,
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},
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});
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ctx.body = list;
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@Controller('/application')
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export class ApplicationController {
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@Get('/list')
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async list(ctx: Context) {
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try {
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const list = await prisma.application.findMany({
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where: {
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valid: 1,
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},
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});
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// 直接返回数据,由路由中间件统一包装成响应格式
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return list;
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} catch (error) {
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// 抛出业务异常,由全局异常处理中间件捕获
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throw new BusinessError('获取应用列表失败', 1001, 500);
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}
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}
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@Get('/detail/:id')
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async detail(ctx: Context) {
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try {
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const { id } = ctx.params;
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const app = await prisma.application.findUnique({
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where: { id: Number(id) },
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});
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if (!app) {
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throw new BusinessError('应用不存在', 1002, 404);
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}
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return app;
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} catch (error) {
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if (error instanceof BusinessError) {
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throw error;
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}
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throw new BusinessError('获取应用详情失败', 1003, 500);
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}
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}
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}
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// 保持向后兼容的导出方式
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const applicationController = new ApplicationController();
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export const list = applicationController.list.bind(applicationController);
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export const detail = applicationController.detail.bind(applicationController);
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