如何使用laravel在数据库中上传多个文件
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【中文标题】如何使用laravel在数据库中上传多个文件【英文标题】：How to upload multiple files in database using laravel 【发布时间】：2021-12-16 18:09:25 【问题描述】：我是 laravel 的新手。我正在尝试以表格形式上传多个文件，但是当我尝试插入数据时，它显示错误。我需要将文件名保存到数据库中。每当我尝试保存表单时，它都会显示错误，因为文件不能为空。
我试过的是：
树枝：
<form method="POST" action="/listingSave" enctype="multipart/form-data" class="sellingFormSave" id="sellingFormSave">
<input type="hidden" name="_token" value="csrf_token()"/>
<input type="hidden" name="product_id" value="product.id"/>
<div class="row">
<div class="form-group col-md-12 condition_radio">
<div class="wrapper">
<span>Condition of the Trucks</span>
<div class="toggle_radio">
<input type="radio" class="toggle_option" id="as_is" value="as_is" name="condition" product.condition == 'as_is' ? 'checked':'' product != '' ? 'disabled' : ''>
<input type="radio" class="toggle_option" id="dot_term" value="dot" name="condition" product.condition == 'dot' ? 'checked':'' product != '' ? 'disabled' : ''>
<input type="radio" class="toggle_option" id="trade_term" value="trade" name="condition" product.condition == 'trade' ? 'checked':'' product != '' ? 'disabled' : ''>
<label for="as_is"><p>As Is - Where Is</p></label>
<label for="dot_term"><p>DOT Term</p></label>
<label for="trade_term"><p>Trade Term</p></label>
<div class="toggle_option_slider">
</div>
</div>
</div>
</div>
<div class="form-group col-md-12">
<div class="field__input-wrapper">
<input type="text" class="field__input" placeholder="Name *" name="name" value="product.name" product != '' ? 'disabled' : 'required'>
</div>
</div>
</div>
<div class="row sell_form">
<div class="col-12 section_title-js">
<h3>Location of the Trucks</h3>
</div>
<div class="form-group col-md-4">
<div class="field__input-wrapper">
<input type="text" class="field__input" placeholder="City *" name="city" value="product.city" product != '' ? 'disabled' : 'required'>
</div>
</div>
<div class="form-group col-md-4">
<div class="field__input-wrapper">
form.fields.state.setAttributes( 'required' : 'required' ).input|raw
</div>
</div>
<div class="form-group col-md-4">
<div class="field__input-wrapper">
<input type="text" class="field__input" placeholder="Zip *" name="zipcode" value="product.zipcode" product != '' ? 'disabled' : 'required'>
</div>
</div>
</div>
% if product == '' %
<div class="row">
<div class="col-12 section_title-js">
<h3></h3>
</div>
<div class="form-group col-md-12">
<input id="demo" type="file" name="files" accept=".jpg, .png, image/jpeg, image/png" multiple>
<!-- <input type="hidden" name="image[]" accept=".jpg, .png, image/jpeg, image/png" multiple> -->
</div>
</div>
% endif %
<div class="row">
<div class="form-group col-md-12 col-12">
<div class="field__input-wrapper">
<input type="radio" name="quantity_type" value="single" product != '' ? 'disabled' : 'required' product.quantity_type == 'single' ? 'checked' : ''> Single
<input type="radio" name="quantity_type" value="fleet" product != '' ? 'disabled' : 'required' product.quantity_type == 'fleet' ? 'checked' : ''> Fleet
</div><br>
<!-- <div class="field__input-wrapper">
<input type="text" class="field__input" placeholder="Quantity *" name="quantity_on_hand"
value="product.quantity_on_hand" product != '' ? 'readonly' : 'required'>
</div><br>
<div class="field__input-wrapper">
<input type="text" class="field__input" placeholder="Price($)" name="price"
value="product.price" product != '' ? 'readonly' : ''>
</div> -->
</div>
</div>
<div class="row">
<div class="form-group col-md-12 col-12">
<table class="table mileageTable">
<thead>
<tr>
<th>Mileage</th>
<th>Price</th>
<th>Count</th>
% if product != '' %
<th>Sold</th>
% endif %
</tr>
</thead>
<tbody>
% for mile in miles %
<tr>
<td>
<input type="hidden" name="mileage_gap_id[]" value="mile.id">
mile.name
</td>
<td>
<input class="price" name="mileage_price[mile.id]"
value="product.mileage_gaps.where('mileage_gap_id',mile.id).first() ? product.mileage_gaps.where('mileage_gap_id',mile.id).first().price : ''"
> </td>
<td>
<input class="number_of_products" name="number_of_products[mile.id]"
value="product.mileage_gaps.where('mileage_gap_id',mile.id).first() ? product.mileage_gaps.where('mileage_gap_id',mile.id).first().number_of_products : ''"
>
</td>
% if product != '' %
<td>
<input class="number_of_products_sold" name="number_of_products_sold[mile.id]"
value="product.mileage_gaps.where('mileage_gap_id',mile.id).first() ? product.mileage_gaps.where('mileage_gap_id',mile.id).first().number_of_products_sold : ''"
type="number">
</td>
% endif %
</tr>
% endfor %
</tbody>
</table>
</div>
</div>
% if product != '' %
<div class="row">
<div class="form-group col-md-4">
<span>Status</span>
<select class="form-control" name="status">
<option value="open" product.status == 'open' ? 'selected' : ''>Open</option>
<option value="pending" product.status == 'pending' ? 'selected' : ''>Pending</option>
<option value="sold" product.status == 'sold' ? 'selected' : ''>Sold</option>
</select>
</div>
</div>
% endif %
<div class="row">
<div class="col-12 section_title-js">
<h3></h3>
</div>
<div class="form-group col-md-4">
<div class="field__input-wrapper">
<input type="text" class="field__input" placeholder="Engine Type" name="engine_type" value="product.engine_type" product != '' ? 'disabled' : ''>
</div>
</div>
<div class="form-group col-md-4">
<div class="field__input-wrapper">
<input type="text" class="field__input" placeholder="Horsepower" name="horsepower" value="product.horsepower" product != '' ? 'disabled' : ''>
</div>
</div>
<div class="form-group col-md-4">
<div class="field__input-wrapper">
<select name="transmission" class="field__input" data-field="transmission" data-field_name="transmission"
data-provides="anomaly.field_type.transmission" id="transmission" product != '' ? 'disabled' : ''>
<option value="">Type of Transmission</option>
<option value="Automated" product.transmission == 'Automated' ? 'selected' : ''>Automated</option>
<option value="Automatic" product.transmission == 'Automatic' ? 'selected' : ''>Automatic</option>
<option value="Manual" product.transmission == 'Manual' ? 'selected' : ''>Manual</option>
</select>
</div>
</div>
<div class="form-group col-md-4">
<div class="field__input-wrapper">
<input type="text" class="field__input" placeholder="Transmission Speed" name="transmission_speed" value="product.transmission_speed" product != '' ? 'disabled' : ''>
</div>
</div>
<div class="form-group col-md-4">
<div class="field__input-wrapper">
<input type="text" class="field__input" placeholder="Transmission Model" name="transmission_model" value="product.transmission_model" product != '' ? 'disabled' : ''>
</div>
</div>
<div class="form-group col-md-4">
<div class="field__input-wrapper">
<select name="bunks" class="field__input" data-field="bunks"
data-field_name="bunks" id="bunks" product != '' ? 'disabled' : ''>
<option value=""># of Bunks</option>
<option value="1" product.bunks == '1' ? 'selected' : ''>1</option>
<option value="2" product.bunks == '2' ? 'selected' : ''>2</option>
</select>
</div>
</div>
<div class="form-group col-md-12">
<div class="field__input-wrapper">
<textarea placeholder="Description of the Trucks" class="form-control" id="description" name="description" rows="3" product != '' ? 'disabled' : ''>product.description</textarea>
</div>
</div>
</div>
<div class="row">
<div class="col-12 section_title-js">
<h3></h3>
</div>
<div class="form-group col-md-12">
<div class="field__input-wrapper field_input__confirm">
<input type="checkbox" id="confirm" name="confirm[]" value="yes" product.confirm != '' ? 'checked' : '' product != '' ? 'disabled' : 'required'>
<label for="confirm"> I certify that the above facts are true to the best of my knowledge and belief.</label>
</div>
</div>
</div>
<button type="submit" class="btn">
Save
</button>
<a href="/truckian-dashboard" class="_btn dash_btn">Back to Dashboard</a>
</form>
控制器：
public function listingSave(Request $request)
$condition=$request->input('condition');
echo $condition;
$p_name=$request->input('name');
$city=$request->input('city');
$zipcode=$request->input('zipcode');
$qtype=$request->input('quantity_type');
$status=$request->input('status');
$engine_type=$request->input('engine_type');
$horsepower=$request->input('horsepower');
$transmission=$request->input('transmission');
$transmission_model=$request->input('transmission_model');
$transmission_speed=$request->input('transmission_speed');
$description=$request->input('description');
$confirm=$request->input('confirm[]');
$bunks=$request->input('bunks');
$files=$request->input('files');
DB::insert('insert into default_truckian_products(product_name,p_condition,city,zipcode,files,quantity_type,status,engine_type,horse_power,transmission, transmission_speed,transmission_model, bunks,description,confirm) values (?, ?, ?, ?,?,?,?,?,?,?,?,?,?,?,?)', [$p_name,$condition,$city,$zipcode,$files,$qtype,$status,$engine_type,$horsepower,$transmission,$transmission_speed,$transmission_model,$bunks,$description,$confirm]);
当尝试执行此代码时，它会显示如下错误：
如何将文件名和文件插入数据库。
【问题讨论】：
您的文件变量是 $file=$request->input('files'); 但在您的查询中您使用的是 $files （没有价值，所以它是空的）。您必须将分配修改为 $files=$request->input('files'); @nacho 。不工作 查看 laravel 文档：laravel.com/docs/8.x/filesystem#file-uploads 你应该使用 $request->file('files') 来访问上传的文件。 【参考方案1】： <input id="demo" type="file" name="files[]" accept=".jpg, .png, image/jpeg, image/png" multiple>
if($request->hasfile('files'))
foreach($request->file('files') as $file)
$name = time().'.'.$file->extension();
$file->move(public_path().'/files/', $name);
$data[] = $name;
试试这个。它对我有用。
【讨论】：
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