docs(examples): add egg.js examples

Author: huangyoukun

examples/framework/helloworld.egg/app.js

@@ -0,0 +1,19 @@
+'use strict';
+
+const options = {
+    baseDir: __dirname,
+    plugin: null
+};
+
+const { EggCore: Application } = require('egg-core');
+const app = new Application(options);
+
+app.loader.loadConfig();
+app.loader.loadController();
+
+
+require('./app/router')(app);
+
+
+module.exports = app;
+

examples/framework/helloworld.egg/app/controller/foo.js

@@ -0,0 +1,13 @@
+'use strict';
+
+const Controller = require('egg').Controller;
+
+class FooController extends Controller {
+    async render() {
+        const ctx = this.ctx;
+
+        ctx.body = 'Hello foo';
+    }
+}
+
+module.exports = FooController;

examples/framework/helloworld.egg/app/controller/home.js

@@ -0,0 +1,12 @@
+'use strict';
+
+const Controller = require('egg').Controller;
+
+class HomeController extends Controller {
+    async render() {
+        const ctx = this.ctx;
+        ctx.body = 'Hello Egg';
+    }
+}
+
+module.exports = HomeController;

examples/framework/helloworld.egg/app/router.js

@@ -0,0 +1,8 @@
+'use strict';
+
+module.exports = app => {
+    app.router.get('/egg/', app.controller.home.render);
+    app.router.get('/egg/home', app.controller.home.render);
+    app.router.get('/egg/foo', app.controller.foo.render);
+};
+

examples/framework/helloworld.egg/package.json

@@ -0,0 +1,7 @@
+{
+  "name": "helloworld.egg",
+  "dependencies": {
+    "egg": "^1.10.1"
+  },
+  "private": true
+}

examples/framework/package.json

@@ -1,11 +1,13 @@
 {
   "version": "0.0.1",
   "dependencies": {
-    "koa": "*",
+    "egg": "^2.9.1",
     "express": "*",
-    "hapi": "*"
+    "hapi": "*",
+    "koa": "*"
   },
   "engines": {
     "node": ">= 8.0.0"
-  }
+  },
+  "private": true
 }

examples/framework/router.js

@@ -2,10 +2,20 @@
 
 // 定义一个路由表
 const map = {
-    hapi: './hapi.js',            // http://127.0.0.1/hapi
-    express: './express.js',    // http://127.0.0.1/express
-    koa: './koa.js',            // http://127.0.0.1/koa
-    default: './helloworld.js' // http://127.0.0.1/other
+    // http://127.0.0.1/egg
+    egg: './helloworld.egg/app.js',
+
+    // http://127.0.0.1/hapi
+    hapi: './hapi.js',
+
+    // http://127.0.0.1/express
+    express: './express.js',
+
+    // http://127.0.0.1/koa
+    koa: './koa.js',
+
+    // http://127.0.0.1/other
+    default: './helloworld.js'
 };
 
 // 路由：起个名字