Laravel 模型中间件示例

Laravel 模型示例

利用 artisan 命令行创建Article模型
php artisan make:model Article

<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Article extends Model
{
    //重新定向数据库表文件
    protected  $table='article';
}

Laravel 模型方法

<?php
namespace App\Http\Controllers;
use Illuminate\Support\Facades\DB;
use Illuminate\Http\Request;
use App\Article;
class Home extends Controller
{
    //model 模型
    public  function mymodels(Article $article){
        echo '<br> mymodel.blade执行了...';
        //将返回的模型类转为数组 
        $res=$article->get()->toArray();
        //  echo '<pre>';
        //  print_r($res);
        return view ('mymodel',['items'=>$res]);
    }
}

Laravel blade模板文件

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="/layui/css/layui.css" />
    <title>模型、中间件示例</title>
</head>
<body>
    <table class="layui-table">
        <thead>
                <tr>
                    <td>ID</td>
                    <td>CATE_ID</td>
                    <td>标题</td>
                </tr>
            </thead>
            <tbody>
                @foreach ($items as $val)
                   <tr>
                       <td>{{$val['id']}}</td>
                       <td>{{$val['cate_id']}}</td>
                       <td>{{$val['title']}}</td>
                   </tr>
                @endforeach
            </tbody>
    </table>
</body>
</html>

Laravel 中间件创建

命令行 php artisan make:middleware Mymiddle

<?php
namespace App\Http\Middleware;
use Closure;
class Mymiddle
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @return mixed
     */
    public function handle($request, Closure $next)
    {
        echo "这是一个中间件...";
        return $next($request);
    }
}

注册中间件

protected $routeMiddleware = [
        'auth' => \App\Http\Middleware\Authenticate::class,
        'auth.basic' => \Illuminate\Auth\Middleware\AuthenticateWithBasicAuth::class,
        'bindings' => \Illuminate\Routing\Middleware\SubstituteBindings::class,
        'cache.headers' => \Illuminate\Http\Middleware\SetCacheHeaders::class,
        'can' => \Illuminate\Auth\Middleware\Authorize::class,
        'guest' => \App\Http\Middleware\RedirectIfAuthenticated::class,
        'password.confirm' => \Illuminate\Auth\Middleware\RequirePassword::class,
        'signed' => \Illuminate\Routing\Middleware\ValidateSignature::class,
        'throttle' => \Illuminate\Routing\Middleware\ThrottleRequests::class,
        'verified' => \Illuminate\Auth\Middleware\EnsureEmailIsVerified::class,
        'mymiddle' => \App\Http\Middleware\Mymiddle::class,
    ];

触发中间件

Route::get('/dbmodels','home@mymodels')->middleware('mymiddle');

效果图

总结：
1、Laravel 模型中需重映射数据库表文件。
2、中间件需创建-注册-触发。
3、命令行创建模型、中间件等，需要把当前目录定为artisan所在目录。

Laravel 模型 中间件 示例

Laravel 模型 中间件 示例

Laravel 模型示例

Laravel 模型方法

Laravel blade模板文件

Laravel 中间件创建

注册中间件

触发中间件

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Laravel 模型中间件示例

Laravel 模型中间件示例