重构

.gitignore

@@ -1,4 +1,5 @@
 node_modules
+/target/
 
 .env*
 !.env.template

src/app/index.js

@@ -1,32 +1,32 @@
-const path = require('path')
+const path = require("path");
 
-const Koa = require('koa')
-const KoaBody = require('koa-body')
-const KoaStatic = require('koa-static')
-const parameter = require('koa-parameter')
+const Koa = require("koa");
+const KoaBody = require("koa-body");
+const KoaStatic = require("koa-static");
+const parameter = require("koa-parameter");
 
-require('../config/env.config')
-const router = require('../router')
-const errHandler = require('./err.handler')
+require("../config/env.config"); // 加载配置
+const router = require("../router"); // 加载路由
+const errHandler = require("./err.handler"); // 加载自定义异常
 
-const app = new Koa()
+const app = new Koa();
 
 app.use(
-  KoaBody({
-    multipart: true,
-    formidable: {
-      uploadDir: path.join(__dirname, '../upload'),
-      keepExtensions: true,
-    },
-    parsedMethods: ['POST', 'PUT', 'PATCH', 'DELETE'],
-  })
-)
-app.use(KoaStatic(path.join(__dirname, '../upload')))
-app.use(parameter(app))
+	KoaBody({
+		multipart: true,
+		formidable: {
+			uploadDir: path.join(__dirname, "../upload"),
+			keepExtensions: true,
+		},
+		parsedMethods: ["POST", "PUT", "PATCH", "DELETE"],
+	})
+);
+app.use(KoaStatic(path.join(__dirname, "../upload")));
+app.use(parameter(app));
 
-app.use(router.routes()).use(router.allowedMethods())
+app.use(router.routes()).use(router.allowedMethods());
 
 // 统一的错误处理
-app.on('error', errHandler)
+app.on("error", errHandler); // 监听全局异常事件
 
-module.exports = app
+module.exports = app;

src/controller/user.js

@@ -0,0 +1,6 @@
+class UserController {
+	async register(ctx, next) {
+		ctx.json({ code: 0, message: "success" });
+	}
+}
+module.exports = new UserController();

src/route/index.js

@@ -3,6 +3,7 @@ const fs = require('fs')
 const Router = require('koa-router')
 const router = new Router()
 
+// 自动载入同级目录中所有文件里的router
 fs.readdirSync(__dirname).forEach(file => {
   // console.log(file)
   if (file !== 'index.js') {