Laravel：使用 ajax 搜索，路由无法正常工作

Question

我有 Laravel 网络应用程序包含对数据库的搜索。首先我有这个输入：

<input class="form-control mr-sm-2" type="text"  id="search_me" placeholder="{{__('home.Search')}}" aria-label="Search" onkeyup="myFunction()">

<input type="hidden" id="course_id" value="{{$course->id}}">

所以我创建了这个 JavaScript 函数：

    <script>

        function myFunction() {

            var search_me=document.getElementById('search_me').value;

            var id=document.getElementById('course_id').value;

                    $.ajax({

                        method : 'POST',

                        url : "{{route ('search')}}",

                        dataType : 'json',

                        data:{

                            '_token':'{{csrf_token()}}',

                            'search_data':search_me , 

                            'course_id':id,

                            },

                        

                        success:function(data){

                        console.log(data); 

                        }

                    });  

        }

</script>

然后我像这样创建路线：

Route::get('/search', [App\Http\Controllers\user\User_controller::class, 'search_data'])->name('search');

和控制器方法：

public function search_data(Request $request)

{

        $output="";

        $questions = Question::table('questions')->where('course_id',$request->course_id)->where('question' ,'LIKE' ,'%'.$request->search_data."%")->get();

        return json_nencode($questions);

}

当我在文本输入上键入时出现错误：

main.js?attr=DEbA4C86cFywU9oORVUcm4fay4bVMB7MeKBvEkL0Iy2jpADxMlMEszxyl6A-4lWVGp58XG2e-YEmLqgl2mGpQg:1078 POST http://127.0.0.1:8000/ku/search 405 (Method Not Allowed)

在这个错误中我发现了这个：

        return fun.apply(this, [].slice.call(arguments));

我遵循了很多这样的例子，我不知道我的错误在哪里？

Answer 1

在使用 $.ajax 请求之前尝试添加此代码  $.ajaxSetup({    headers: {     'X-CSRF-TOKEN': "{{ csrf_token() }}"   }});让我知道它是否有帮助，它也记录在官方 laravel 文档中。在此之后，您不需要在 $.ajax 请求中添加 __token 。

Answer 2

谢天谢地，我通过这种方式解决了它：路线：Route::get('/search'.'/{search}/{course}', [App\Http\Controllers\user\User_controller::class, 'search_data'])->name('search');js函数：function myFunction(id) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; var search_me=document.getElementById('search_me').value;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; var route = "{{URL::to('search')}}"+'/'+search_me+'/'+id;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if(search_me != ""){&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $.get(route, function(data,status){&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; console.log(data);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; });&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; </script>

Answer 3

你的 ajax 方法是post，但你的路线是get改变路线到postRoute::post('/search', [App\Http\Controllers\user\User_controller::class, 'search_data'])->name('search');或者你的ajaxget&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $.ajax({&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; method : 'GET',&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; url : "{{route ('search')}}",&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; dataType : 'json',&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; data:{&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 'search_data':search_me ,&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 'course_id':id,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; },&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; success:function(data){&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; console.log(data);&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; });&nbsp;&nbsp;