在各种公共方法都设计好，软件安装成功的条件下

routes/web.php中路由信息如下

<?php

/*
|--------------------------------------------------------------------------
| Web Routes
|--------------------------------------------------------------------------
|
| Here is where you can register web routes for your application. These
| routes are loaded by the RouteServiceProvider within a group which
| contains the "web" middleware group. Now create something great!
|
*/

Route::get('/index', 'Api\BannerController@index'); //后台登录操作

app/Http/ontollers/Api/BannerController.php中代码如下

<?php

namespace App\Http\Controllers\Api;

use Illuminate\Http\Request;
use App\Http\Controllers\ApiController;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Redis;
use Illuminate\Support\Facades\Session;
use Validator;

class BannerController extends ApiController
{
public function index(Request $request){
$validator=Validator::make($request->all(),[
'token'=>'required|string',
'type'=>'required|int'
],[
'token.required'=>'token为空',
'type.required'=>'type为空',
'type.int'=>'type字段仅支持整形'
]
);
if($validator->fails()){
return returnJson('400','sb',$validator->errors());
}
$info=DB::table('admin')->get();
return json_encode(['code'=>'10200','message'=>'cg','data'=>$info[0]]);
}

}

网址：http://localhost/ay/public/index.php/index?token=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpZCI6MX0.eR3VWi_o8n_dMcrzcy3nIEeQ2Rk96hX0O8UjW33JQPM&type=1

例子二：

web.php中路由为

Route::any('/test/show','UserController@show');

Controllers/UserController.php中代码为

<?php
/**
* Created by PhpStorm.
* User: liuyanjie
* Date: 2018/12/9
* Time: 11:48
*/

namespace App\Http\Controllers;

use App\Http\Controllers\Controller;
use Illuminate\Http\Request;

class UserController extends Controller
{
public function show(Request $request)
{
$username=$request->get('username');
return $username;
}
}

访问http://localhost/laravel57/public/index.php//test/show?username=aaa

便可得到如下结果

例子三：

web.php中路由为

Route::any('/test/hello',function (){
return 'This is a request from any HTTP verb';
});

然后访问http://localhost/laravel57/public/index.php//test/hello

便可得到

例子四：

web.php中路由为

Route::any('/test/show','UserController@show');

Controllers/UserController.php中代码为

<?php
/**
* Created by PhpStorm.
* User: liuyanjie
* Date: 2018/12/9
* Time: 11:48
*/

namespace App\Http\Controllers;

use App\Http\Controllers\Controller;
use Illuminate\Http\Request;

class UserController extends Controller
{
public function show(Request $request)
{
$username=$request->get('username');

    return view('index')->with(\['info'=>$username\]);  
}  

}

view('index')指向 resources/views/index.blade.php  ,向该文件传递 $info这个参数

index.blade.php 中的代码为：

{{ $info }}

这样便可以将参数进行显示。

访问http://localhost/laravel57/public/index.php//test/show?username=aaa

可得到

例子五：访问数据库

路由

Route::any('/test/show','UserController@show');

控制器：

<?php
/**
* Created by PhpStorm.
* User: liuyanjie
* Date: 2018/12/9
* Time: 11:48
*/

namespace App\Http\Controllers;

use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;

class UserController extends Controller
{
public function show(Request $request)
{
// $username=$request->get('username');
$info=DB::table('admin')->get();
return json_encode(['code'=>'10200','message'=>'cg','data'=>$info[0]]);
}
}