我有以下代码。可以将title，tag和description的formData发送到控制器进行上传。但是我一直收到这个错误。
错误：
无法加载资源：服务器响应状态为422（无法处理的实体）
这是我的代码：
<!DOCTYPE html>
<html>
<head>
<title>Laravel Multiple Images Upload Using Dropzone</title>
<meta name="_token" content="{{csrf_token()}}" />
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/dropzone/5.4.0/min/dropzone.min.css">
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/dropzone/5.4.0/dropzone.js"></script>
<style>
.data{
display:none;
}
.dropzone {
width: 98%;
margin: 1%;
border: 2px dashed #3498db !important;
border-radius: 5px;
transition: 0.2s;
}
.dropzone.dz-drag-hover {
border: 2px solid #3498db !important;
}
.dz-message.needsclick img {
width: 50px;
display: block;
margin: auto;
opacity: 0.6;
margin-bottom: 15px;
}
span.plus {
display: none;
}
.dropzone.dz-started .dz-message {
display: inline-block !important;
width: 120px;
float: right;
border: 1px solid rgba(238, 238, 238, 0.36);
border-radius: 30px;
height: 120px;
margin: 16px;
transition: 0.2s;
}
.dropzone.dz-started .dz-message span.text {
display: none;
}
.dropzone.dz-started .dz-message span.plus {
display: block;
font-size: 70px;
color: #AAA;
line-height: 110px;
}
</style>
</head>
<body>
<div class="container">
<form method="GET" enctype="multipart/form-data" class="dropzone" id="dropzone">
<button id='upload'>Upload</button>
@csrf
</form>
<div class='data' ></div>
</div>
<script type="text/javascript">
var title = $('#title').val();
var description = $('#description').val();
max=2
var thumbnail;
Dropzone.options.dropzone = {
maxFiles: max,
autoProcessQueue: false,
uploadMultiple: true,
method:"get",
maxFilesize: 12,
url: '/upload',
init: function() {
var myDropzone = this;
$("#upload").click(function(e) {
// First change the button to actually tell Dropzone to process the queue.
// Make sure that the form isn't actually being sent.
e.preventDefault();
e.stopPropagation();
myDropzone.processQueue();
});
this.on("maxfilesexceeded", function(file) {
alert('Max of '+ max + ' files');
this.removeFile(file);
});
this.on("addedfile", function() {
this.on('thumbnail', function(file, thumbnail) {
thumbnail = file.thumbnail;
});
this.on('sending', function (file, xhr, formData) {
// Append all form inputs to the formData Dropzone will POST
var data = $('.dropzone').serializeArray();
$.each(data, function (key, el) {
formData.append(el.title, el.description, el.tags);
});
console.log(formData);
});
var myvar = '<div class="form-group">'+
'<img class="media-object thumbnail" src="'+ thumbnail +'" />'+
'<label for="title">Title</label>'+
'<input type="text" class="form-control" id="title" aria-describedby="title" placeholder="Give your image a title"><br>'+
'<label for="Description">Description</label>'+
'<input type="text" class="form-control" id="description" aria-describedby="Description" placeholder="Describe your image"><br>'+
'<label for="Tags">Tags</label>'+
'<input type="text" class="form-control" id="Tags" aria-describedby="Tags" placeholder="Give your image tags"><br>'+
'<small>Tags are important to let people easily find your image</small><br><br>'+
''
;
$('.data').show();
$('.data').append(myvar);
});
},
acceptedFiles: ".jpeg,.jpg,.png,.gif",
addRemoveLinks: true,
timeout: 50000,
processQueue: function(file) {
var name = file.upload.filename;
$.ajax({
headers:
{
'X-CSRF-TOKEN': $('meta[name="_token"]').attr('content')
},
type: 'POSTg',
url: '{{ url("image/delete") }}',
data: {
title: title,
description:description,
type:"image",
body:"upploaded/img"+filename
},
success: function(data) {
console.log("File has been successfully removed!!");
},
error: function(e) {
console.log(e);
}
});
var fileRef;
return (fileRef = file.previewElement) != null ?
fileRef.parentNode.removeChild(file.previewElement) : void 0;
},
success: function(file, response) {
console.log(response);
},
error: function(file, response) {
return false;
}
};
</script>
</body>
</html>
这是 MyController ：
public function upload(StorePostRequest $request)
{
$title= Post::where('title', $request->input('title'))->first();
if (!$title == null) {
return redirect()->back()->withErrors(['Title Already Exists', 'Title already exists']);
return response()->json(["message" => "Failed","reason" => "Title Already Exists"]);
}
$post = Post::create([
'title' => $request->input('title'),
'body' => $request->input('body'),
'description' => $request->input('description'),
'type' => $request->input('type'),
'user_id' => auth()->id(),
'published_at' => $request->has('draft') ? null : \Carbon\Carbon::now()
]);
}
StorePostRequest.php ：
<?php
namespace App\Http\Requests;
use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Support\Facades\Auth;
class StorePostRequest extends FormRequest
{
/**
* Determine if the user is authorized to make this request.
*
* @return bool
*/
public function authorize()
{
return Auth::check();
}
/**
* Get the validation rules that apply to the request.
*
* @return array
*/
public function rules()
{
return [
'title' => 'required|max:255',
'body' => 'required',
'tags' => 'nullable',
'image' => 'nullable|image|max:2048'
];
}
}
非常感谢。