laravel 使用常见问题记录

1、文件上传默认为storage目录，修改上传路径为public目录

if (!preg_match('/\.(jpg|jpeg|png|gif)$/', $fileName,$ext))
    return  response()->json(['code' => -3, 'data' => '', 'msg' => '只能上传jpg|png|gif|jpeg格式文件'])

// 移动到框架应用根目录/public/uploads/ 目录下
            $path  = $file->storeAs( date('Ymd'),uniqid().'.'.$ext[1]);
            if($path ){
                return   response()->json(['code' => 0, 'data' => ['src' =>'/uploads/'.$path], 'msg' => '']);
            }else{
                // 上传失败获取错误信息
                return    response()->json(['code' => -1, 'data' => '', 'msg' => $file->getError()]);
            }

　　配置storeAs方法文件存储位置：config/filesystem.php

/*默认为local*/
 'default' => env('FILESYSTEM_DRIVER', 'local'),
/*修改public_path为默认文件上传路径*/
'disks' => [

        'local' => [
            'driver' => 'local',
            'root' => public_path('uploads'),
        ],
.............

 

2、 在控件方法中获取路由参数

     在routes/web.php设置参数

 
Route::post('{uploadfile}', 'chat\FileController@uploadImg')->where(['uploadfile'=>'^(img|file)$']);

　在自定义Controller获取路由参数

  

  //上传图片
    public function uploadImg(Request $request)
    {
      /*获取路由参数*/
       $fileType=$request->route('uploadfile');

     ............

3、部分页面取消使用token验证

    在app\Http\Middleware\VerifyCsrfToken.php　中排除指定路由

  

    /**
     * The URIs that should be excluded from CSRF verification.
     *排除upload下的所有路由使用token验证
     * @var array
     */
    protected $except = [
       '/im/service/upload/*'
    ];

　　

 4、自定登陆验证表

     修改conifg/auth.php

/*增加自定义chat_service验证*/

'guards' => [
       ................

        'chatService' => [
            'driver' => 'session',
            'provider' => 'chat_service',
        ],
'providers' => [
     ........................
        'chat_service' => [
            'driver' => 'eloquent',
            'model' => App\Models\ChatService::class,
        ]

 

ChatService类:

namespace App\Models;
/*要完成验证必须引用User*/
use Illuminate\Foundation\Auth\User as Authenticatable;
class ChatService extends Authenticatable
{
   protected  $table='ws_users';
   protected $primaryKey='id';
   protected  $hidden='password';
    //自动维护时间戳
    public $timestamps = false;
}

　　

   使用方法：

  

/*登陆验证*/
  if(Auth::guard('chatService')->attempt($request_params))
        {
            return response()->json(['msg'=>'登陆成功','code'=>200,'data'=>'index']);
        }

添加中间件验证AuthChatService文件：

  

use Illuminate\Contracts\Auth\Factory as Auth;

*检查当前用户是否登陆*/
class AuthChatService
{
    private  $auth;

    public function  __construct(Auth $auth)
    {
        $this->auth=$auth;
    }
  public function handle($request, Closure $next)
    {
        if (!$this->auth->guard('chatService')->check()) {
            return  redirect('im/service/login');
        }
        return $next($request);
    }

}

路由加入中间件验证，未通过转向登陆页面

 

  /*验证客户是否登陆*/
        Route::group(['middleware'=>'authChatService'],function ()
        {
            Route::get('index','chat\IndexController@index')->name('service.index');
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 5、表单验证时以json数据返回错误信息

    

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;

class AdminChatLoginRequest extends FormRequest
{

  
  /*重写form验证失败,返回json*/
    protected  function  failedValidation(Validator $validator)
    {

        throw new HttpResponseException(response()->json(['msg'=>$validator->errors()->first(),'code'=>'400'],200));
    }

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