Fix some bugs, add a simple UI, complete email functions.

app/Http/Controllers/ContentController.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\View;
+use Illuminate\Support\Facades\Redirect;
+use Illuminate\Support\Facades\Validator;
+use App\Http\Controllers\Controller;
+use App\GoodInfo;
+
+class ContentController extends Controller
+{
+    public function Mainpage()
+    {
+        return View::make('welcome');
+    }
+}