laravel 后 500（内部服务器错误）？

Question

路线 web.php

    Route::get('admin/exam_categry', 'Admin@exam_category');
    Route::post('admin/add_new_category', 'Admin@add_new_category');

controller Admin.php 这里是所有代码

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\Oex_category;
use Validator;
class Admin extends Controller
{
    public function index(){
        return view('admin.dashboard');
    }

    public function exam_category(){
        return view('admin.exam_category');
    }
    public function add_new_category(Request $request){
       $validator=validator::make($request->all(),['name'=>'required']);
       if($validator->passes())
       {
           $cat = new Oex_category();
           $cat->name=$request->name;
           $cat->status=1;
           $cat->save();
           $arr=array('status'=>'true','message'=>'success','reload'=>url('admin/exam_categry'));
       }
       else
           {
           $arr=array('status'=>'false','message'=>$validator->errors()->all());
       }
       echo jason_encode($arr);
    }
}

在我们输入数据的地方形成 exam_category

@extends('layouts.app')
@section('title','Dashboard')
@section('content')
    <!-- Content Wrapper. Contains page content -->
    <div class="content-wrapper">
        <!-- Content Header (Page header) -->
        <div class="content-header">
            <div class="container-fluid">
                <div class="row mb-2">
                    <div class="col-sm-6">
                        <h1 class="m-0 text-dark">Category</h1>
                    </div><!-- /.col -->
                    <div class="col-sm-6">
                        <ol class="breadcrumb float-sm-right">
                            <li class="breadcrumb-item"><a href="#">Home</a></li>
                            <li class="breadcrumb-item active">Category</li>
                        </ol>
                    </div><!-- /.col -->
                </div><!-- /.row -->
            </div><!-- /.container-fluid -->
        </div>
        <!-- /.content-header -->
        <section class="content">
            <div class="container-fluid">
                <div class="row">
                    <div class="col-12">
                        <!-- Default box -->
                        <div class="card">
                            <div class="card-header">
                                <h3 class="card-title">Title</h3>

                                <div class="card-tools">
                                 <a class="btn btn-info btn-sm" href="javascript:;"data-toggle="modal" data-target="#myModal">Add New</a>
                                </div>
                            </div>
                            <div class="card-body">
                               <table class="table table-striped table-bordered table-hover dataTable">
                                   <thead>
                                   <th>#</th>
                                   <th>Name</th>
                                   <th>Status</th>
                                   <th>Action</th>
                                   </thead>
                                   <tbody>

                                   </tbody>
                                   <tfoot>
                                   <th>#</th>
                                   <th>Name</th>
                                   <th>Status</th>
                                   <th>Action</th>
                                   </tfoot>
                               </table>
                            </div>
                            <!-- /.card-body -->

                            <!-- /.card-footer-->
                        </div>
                        <!-- /.card -->
                    </div>
                </div>
            </div>
        </section>
        <div class="modal fade" id="myModal" role="dialog">
            <div class="modal-dialog">

                <!-- Modal content-->
                <div class="modal-content">
                    <div class="modal-header">
                        <h4 class="modal-title">Add New Category</h4>
                        <button type="button" class="close" data-dismiss="modal">&times;</button>
                    </div>
                    <div class="modal-body">
                        <form action="{{url('admin/add_new_category')}}"  class="database_operation" >
                       <div class="row">
                           <div class="col-sm-12">
                               <div class="form-group">
                                  <label>Enter Category Name</label>
                                   {{csrf_field()}}
                                   <input type="text"  required="required" name="name" placeholder="Enter Category Name" class="form-control">
                               </div>
                           </div>
                           <div class="col-sm-12">
                               <div class="form-group">
                                   <button class="btn btn-primary">Add</button>
                               </div>
                           </div>
                       </div>
                        </form>
                    </div>

                </div>

            </div>
        </div>
    </div>
@endsection

自定义.js文件

$(document).on('submit','.database_operation',function(){
    var url=$(this).attr('action');
    var data=$(this).serialize();
    $.post(url,data,function(fb){
       var resp = $.parseJSON(fb);
       consol.log(resp);
    })
    return false;
});

exam_category Model 当我添加类别然后我在检查元素时显示错误

namespace App;

use Illuminate\Database\Eloquent\Model;

class Oex_category extends Model
{
    protected $table="oex_categories";
    protected $primaryKey="id";
    protected $fillable=['name','status'];
}

存储/日志

 [2020-06-11 23:37:28] local.ERROR: Call to undefined function App\Http\Controllers\jason_encode() {"exception":"[object] (Symfony\\Component\\Debug\\Exception\\FatalThrowableError(code: 0): Call to undefined function App\\Http\\Controllers\\jason_encode() at C:\\xampp\\htdocs\\Project\\online_exam_sys\\app\\Http\\Controllers\\Admin.php:31)
[stacktrace]
#0 [internal function]: App\\Http\\Controllers\\Admin->add_new_category(Object(Illuminate\\Http\\Request))
#1 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Controller.php(54): call_user_func_array(Array, Array)
#2 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\ControllerDispatcher.php(45): Illuminate\\Routing\\Controller->callAction('add_new_categor...', Array)
#3 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Route.php(212): Illuminate\\Routing\\ControllerDispatcher->dispatch(Object(Illuminate\\Routing\\Route), Object(App\\Http\\Controllers\\Admin), 'add_new_categor...')
#4 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Route.php(169): Illuminate\\Routing\\Route->runController()
#5 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Router.php(658): Illuminate\\Routing\\Route->run()
#6 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(30): Illuminate\\Routing\\Router->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#7 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Middleware\\SubstituteBindings.php(41): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#8 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(149): Illuminate\\Routing\\Middleware\\SubstituteBindings->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#9 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#10 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Middleware\\VerifyCsrfToken.php(68): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#11 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(149): Illuminate\\Foundation\\Http\\Middleware\\VerifyCsrfToken->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#12 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#13 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\View\\Middleware\\ShareErrorsFromSession.php(49): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#14 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(149): Illuminate\\View\\Middleware\\ShareErrorsFromSession->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#15 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#16 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Session\\Middleware\\StartSession.php(63): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#17 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(149): Illuminate\\Session\\Middleware\\StartSession->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#18 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#19 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Cookie\\Middleware\\AddQueuedCookiesToResponse.php(37): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#20 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(149): Illuminate\\Cookie\\Middleware\\AddQueuedCookiesToResponse->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#21 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#22 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Cookie\\Middleware\\EncryptCookies.php(66): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#23 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(149): Illuminate\\Cookie\\Middleware\\EncryptCookies->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#24 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#25 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(102): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#26 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Router.php(660): Illuminate\\Pipeline\\Pipeline->then(Object(Closure))
#27 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Router.php(635): Illuminate\\Routing\\Router->runRouteWithinStack(Object(Illuminate\\Routing\\Route), Object(Illuminate\\Http\\Request))
#28 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Router.php(601): Illuminate\\Routing\\Router->runRoute(Object(Illuminate\\Http\\Request), Object(Illuminate\\Routing\\Route))
#29 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Router.php(590): Illuminate\\Routing\\Router->dispatchToRoute(Object(Illuminate\\Http\\Request))
#30 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Kernel.php(176): Illuminate\\Routing\\Router->dispatch(Object(Illuminate\\Http\\Request))
#31 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(30): Illuminate\\Foundation\\Http\\Kernel->Illuminate\\Foundation\\Http\\{closure}(Object(Illuminate\\Http\\Request))
#32 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\fideloper\\proxy\\src\\TrustProxies.php(56): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#33 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(149): Fideloper\\Proxy\\TrustProxies->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#34 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#35 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest.php(30): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#36 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(149): Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#37 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#38 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest.php(30): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#39 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(149): Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#40 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#41 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Middleware\\ValidatePostSize.php(27): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#42 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(149): Illuminate\\Foundation\\Http\\Middleware\\ValidatePostSize->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#43 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#44 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Middleware\\CheckForMaintenanceMode.php(46): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#45 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(149): Illuminate\\Foundation\\Http\\Middleware\\CheckForMaintenanceMode->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#46 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#47 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(102): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#48 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Kernel.php(151): Illuminate\\Pipeline\\Pipeline->then(Object(Closure))
#49 C:\\xampp\\htdocs\\Project\\online_exam_sys\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Kernel.php(116): Illuminate\\Foundation\\Http\\Kernel->sendRequestThroughRouter(Object(Illuminate\\Http\\Request))
#50 C:\\xampp\\htdocs\\Project\\online_exam_sys\\public\\index.php(55): Illuminate\\Foundation\\Http\\Kernel->handle(Object(Illuminate\\Http\\Request))
#51 C:\\xampp\\htdocs\\Project\\online_exam_sys\\server.php(21): require_once('C:\\\\xampp\\\\htdocs...')
#52 {main}
"} 

错误消息我浪费了 2 天的时间来解决它，但它不起作用

首先是面对 405 错误，但现在是 500 服务器错误，如果有人知道帮助我...... jquery.min.js:2 POST http://127.0.0.1:8000/admin/add_new_category 500（内部服务器错误）发送@ jquery.min.js:2 ajax @ jquery.min.js:2 k。 @jquery.min.js:2（匿名）@custom.js:6 dispatch @jquery.min.js:2 v.handle @jquery.min.js:2 当我检查页面时显示

Answer 1

您的 controller 管理员返回时出现错字：

echo jason_encode($arr);

正确的语法是：

echo json_encode($arr);

但这里真正的问题是您的服务器没有返回错误。 确保你的 .env 文件是：

APP_DEBUG=true

而不是寻找错误：

\存储\日志