"require": {
    "php": ">=5.5.9",
    "laravel/framework": "5.1.*",
    "gregwar/captcha": "1.*",
    "zizaco/entrust": "dev-laravel-5"
},

composer install

// or

composer update

// providers
Zizaco\Entrust\EntrustServiceProvider::class

// aliase
'Entrust' => Zizaco\Entrust\EntrustFacade::class,

'role' => Zizaco\Entrust\Middleware\EntrustRole::class,
'permission' => Zizaco\Entrust\Middleware\EntrustPermission::class,
'ability' => Zizaco\Entrust\Middleware\EntrustAbility::class,

'model' => App\Models\User::class

php artisan vendor:publish

'role'=>'App\Models\Role'
'permission'=>'App\Models\Permission'

php artisan entrust:migration
php artisan migrate

composer dump-autoload

// 角色模型
php artisan make:model Models/Role

// 权限模型
php artisan make:model Models/Permission

<?php
namespace App\Models;

use Zizaco\Entrust\EntrustRole;

class Role extends EntrustRole
{
    protected $guarded = [];
}

<?php
namespace App\Models;

use Zizaco\Entrust\EntrustPermission;

class Permission extends EntrustPermission
{
    protected $guarded = [];
}

<?php

namespace App\Models;

use Illuminate\Auth\Authenticatable;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Auth\Passwords\CanResetPassword;
use Illuminate\Foundation\Auth\Access\Authorizable;
use Illuminate\Contracts\Auth\Authenticatable as AuthenticatableContract;
use Illuminate\Contracts\Auth\Access\Authorizable as AuthorizableContract;
use Illuminate\Contracts\Auth\CanResetPassword as CanResetPasswordContract;
use Zizaco\Entrust\Traits\EntrustUserTrait;

class User extends Model implements AuthenticatableContract,
    AuthorizableContract,
    CanResetPasswordContract
{
    use Authenticatable, Authorizable, CanResetPassword, EntrustUserTrait{
        Authorizable::can insteadof  EntrustUserTrait;
        EntrustUserTrait::can as hasPermission;
    }

    /**
     * The database table used by the model.
     *
     * @var string
     */
    protected $table = 'users';

    /**
     * The attributes that are mass assignable.
     *
     * @var array
     */
    protected $fillable = ['name', 'email', 'password'];

    /**
     * The attributes excluded from the model's JSON form.
     *
     * @var array
     */
    protected $hidden = ['password', 'remember_token'];
}