test/app/Http/Requests/ProductSaveRequest.php

<?php

namespace App\Http\Requests;

class ProductSaveRequest extends Request
{
    /**
     * Determine if the user is authorized to make this request.
     *
     * @return bool
     */
    public function authorize()
    {
        return true;
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules()
    {
        if (!$this->ajax()) {
            return [];
        }

        return [
            'title' => 'required',
            'remark' => 'nullable',
            'href' => 'nullable'
        ];
    }


    public function attributes()
    {
        return [
            'title' => '标题',
            'remark' => '备注',
            'href'=>'链接地址'
        ];
    }
}