Use ajax to submit a set of forms, which contains an image.
Originally, it could be successfully saved to the database when submitted without ajax.
However, because the image needs to be compressed before uploading, it was changed to ajax submission, and the ajax request was successful. Sent, but cannot be saved to the database,
I think it may be that the code in the controller needs to be modified, but I don’t know how to change it. The code is below.
ps: The localResizeIMG plug-in is used to compress images. https://github.com/think2011/localResizeIMG
The following is the view of submitting the form using ajax:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta http-equiv="x-ua-compatible" content="ie=edge">
<link href="https://cdn.bootcss.com/bootstrap/4.0.0-alpha.2/css/bootstrap.min.css" rel="stylesheet">
<link href="https://cdn.bootcss.com/font-awesome/4.5.0/css/font-awesome.min.css" rel="stylesheet">
</head>
<body>
<p class="container">
<fieldset class="form-group">
<label for="title">标题</label>
<input type="text" class="form-control" id="title" placeholder="">
</fieldset>
<fieldset class="form-group">
<label for="content">内容</label>
<textarea class="form-control" id="content" rows="3"></textarea>
</fieldset>
<fieldset class="form-group">
<label for="photo">图片</label>
<input type="file" name="file" accept="image/*" class="form-control-file" id="photo">
<img id="preview"/>
</fieldset>
<a id="submit" class="btn btn-primary">提交</a>
</p>
<script src="https://cdn.bootcss.com/jquery/2.1.4/jquery.min.js"></script>
<script src="https://cdn.bootcss.com/tether/1.1.1/js/tether.min.js"></script>
<script src="https://cdn.bootcss.com/bootstrap/4.0.0-alpha.2/js/bootstrap.min.js"
integrity="sha384-vZ2WRJMwsjRMW/8U7i6PWi6AlO1L79snBrmgiDpgIWJ82z8eA5lenwvxbMV1PAh7"
crossorigin="anonymous"></script>
//用了localResizeIMG插件，用于上传图片前先压缩。https://github.com/think2011/localResizeIMG
<script src="js/dist/lrz.all.bundle.js"></script>
<script>
$(function () {
var $preview = $('#preview');
var formData = null;
$('#photo').on('change', function () {
lrz(this.files[0], {
width: 800
}).then(function (rst) {
$preview.attr('src', rst.base64);
rst.formData.append('fileLen', rst.fileLen);
});
});
$("#submit").click(function (rst) {
$.ajax({
type: "POST",
url: "article/",
dataType: 'json',
cache: false,
data: {
title: $("#title").val(),
content: $("#content").val(),
photo: rst.formData
}
}).done(function (msg) {
alert("done: " + msg);
}).fail(function (jqXHR, textStatus) {
alert("fail: " + textStatus);
});
});
});
</script>
</body>
</html>
The following is the original controller when ajax was not used. It can be successfully saved to the database. Now I don’t know how to change it.
public function store(Requests\StoreArticleRequest $request)
{
$article = new Article($request->except('photo'));
$article -> user_id = \Auth::id();
$file = $request->file('photo');
$destinationPath = 'uploads/';
$extension = $file->getClientOriginalExtension();
$fileName = \Auth::user()->id . '_' . time() . '.' . $extension;
$file->move($destinationPath, $fileName);
$article -> photo = '/'.$destinationPath.$fileName;
$article->save();
return redirect()->action('ArticleController@show', ['id' => $article->id]);
}The following is StoreArticleRequest
public function rules()
{
return [
'title'=>'required',
'content'=>'required',
'photo'=>'image'
];
}
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
save前你先dd下$articleTake a look at the dataDon’t forget csrf and ajax when submitting.