1：Laravel的启动

切换到laravel项目下   www/my_laravel

开启laravel服务          php artisan serve

2：快速创建一个laravel控制器/模型

     php artisan make:controller NameController;

php artisan make:model modelName;

3：查看路由列表  

php artisan route:list

    （路由的作用是宏理请求）观的分发/处

请求方式：get/post/any

4：down / up

     php artisan down /up

5：laravel操作数据库--需提前创建好数据库模型 php artian make:model modelName;

Route::get('/test', function(){$user = new App\User();//数据库内容查询// return $user->all();//数据库内容添加// $user->userAdd();//数据库内容修改// $user->userUpdate();//数据库内容的删除$user->userDelete();return $user->userRead();
});

   public function userRead(){return $this->all();// return $this->find(1);// return $this->where('user_id','>',1)->get();}public function userAdd(){$this->username="user2";$this->age=30;//数组方式添加// $user_data=['username'=>"user2", 'age'=>"30"];// $this->fill($user_data);$this->save();}public function userUpdate(){//  $user = $this->find(21);$users=$this->where('user_id','<=','10');$users->update(['username'=>'curry','age'=>27]);//save()用于单条数据的操作保存，update自带保存属性//  $users->save();}public function userDelete(){$user=$this->find(20);$user->delete();}

6：数组的赋值与值得访问

controller文件

public function index(){$data=['name'=>'冬冬','age'=>22];// return view('index')->with('Laravel',$data);return view('index',$data);}

view文件，直接访问数组的索引

<div class="title">欢迎你<?php echo $name; ?></div>
<div class="title">年龄是<?php echo $age; ?></div>

7：变量值的访问

  public function page(){$lang="php";return view('page',compact('lang'));return view('page')->with('lang',"haskell");//后面再次赋值会被忽略掉}

8: 数据的插入

//  $this->username='aaron';//  $this->age     =26;
$data = ["username"=>"linux","age"=>23];
$this->fill($data);
$this->save();

9：条件性的更新数据库

$users = $this->where('user_id','>','10');
$users->update(['username'=>"dongdong11019",'age'=>27]);

      public function infoAdd(){$this->name="haskell";$this->user="lisa";$this->save();}public function infoUpdateEasy(){$data=$this->find(4);$data->name="Golang";$data->user="xiaoming";$data->update();}public function infoUpdate(){$datas = $this->where("id",'>',3);$datas ->update(["name"=>"javascript","name"=>"jerry"]);}public function infoDel(){$obj =  $this->find(5);$obj -> delete();}

10: laravel解决表单通过post提交时遇到的问题

“TokenMismatchException in VerifyCsrfToken.php line xx:”

 解决方法是通过在表单的开始隐藏提交一个“csrf_token()”值

     eg:

<form role="form" action="test" method="post">//提交这个东东<input type="hidden" name="_token" value="{{csrf_token()}}"><div class=""><label for="">姓名</label><input type="text" name="name"></div><div class=""><label for="">年龄</label><input type="text" name="age"></div><input type="submit" value="提交"/>
</form>

Route::get('testCsrf',function(){$csrf_field = csrf_field();$html = <<<GET<form method="POST" action="/testCsrf">{$csrf_field}<input type="submit" value="Test"/></form>
GET;return $html;
});

11：请求检索的4中方法

 only-except-url-fullUrl 

12:  请求历史处理

       存-->flash-flashOnly-flashExcept

       取-->old

 Route::any("/test", function(){//  $rest = Request::flash();   //全部//  $rest = Request::flashOnly("name");   //唯一$rest = Request::flashExcept("name");    //出去唯一后的全部
});
Route::any("/test2", function(){return Request::old();
});

13：将session存储在数据库表中

        php artisan session:table

composer dump-autoload

php artisan migrate