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问题:

I am new to Laravel and am using Laravel 5.3. I want to make a text field where it will automatically suggest some data and when I select a data it will add it to an array. I want to send that array to a controller for further use. For this the

view file is as follows:

<head>
    <script src="http://code.jquery.com/jquery-1.10.2.js"></script>
    <script src="http://code.jquery.com/ui/1.11.4/jquery-ui.js"></script>
    <script>
        $(document).ready(function() {
            var members = {!!  json_encode($member)  !!};
            console.log(members);
            var arr = [];
            $("#tags").autocomplete({
                source: members,
                select: function (event, ui) {
                    arr.push(ui);
                    console.log(arr);
                }
            });
            $("#submit").click(function(event){
                $.ajax({
                    type: "POST",
                    url: '/storeresearch',
                    data: {selectedMembers: arr},
                    success: function( msg ) {
                        console.log(msg);
                    }
                });
            });
        });
        </script>
</head>
<body>
<form id="hu" action="/storeresearch" method="POST">
    {!! csrf_field() !!}
    <label>Research Author</label>
    <input type="text" id="tags" name="researchsupervisor_1" value="">
    <input type="submit" name="submit" id="submit" class="btn btn-primary" value="Add">
</form>
</body>

My Controller file is as follows:

public function store(Request $request){
        if($request->ajax())
        {
            $mem = $request->all();
            return response()->json($mem,200) ;
        }
        else{
            return "not found";
        }

And web.php is as followings:

Route::post('/storeresearch','ResearchController@store');

But it seems that there is no ajax call happening. In the controller it always enters the else section. What is the problem can anyone help?

回答1:

Try some thing like this:

$.ajax({
    url     : '/login',
    method  : 'post',
    data    : {
        login_username  : userName,
        password        : password
    },
    headers:
    {
        'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
    },
    success : function(response){

    }
});

Route:

Route::post('/login',[
    'uses' => 'AdminServiceController@login'
]);

Controller method:

 public function login()
{
    $userName   = INPUT::get('login_username');
    $password   = INPUT::get('password');

    // your logic
}

回答2:

Your code mostly looks good. But you are missing to send a csrf token with AJAX call as you are using POST request.

You can send csrf token with AJAX call in this way:

<meta name="csrf-token" content="{{ csrf_token() }}">

$.ajaxSetup({
    headers: {
        'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
    }
});

More info: https://laravel.com/docs/5.3/csrf#csrf-x-csrf-token

When you hit the button, does it really fires an AJAX call? Please check that on network tab of browser.

回答3:

What's your namespace declaration for Request ?

If it is use Illuminate\Http\Request; try use Request;

回答4:

I solved this problem by doing following

$.ajax({
                type:'POST',
                url:'your url',
                data:{_token: "{{ csrf_token() }}"
                },
                success: function( msg ) {
                }
            });