我使用jQuery-File-Upload。表单数据按我的意愿写入数据库。 但是当我上传图片时，我会收到以下消息：
{"files":[{"name":"1430606695-9544","size":0,"type":"","error":"No file was uploaded"}]}
为什么会这样说＆＃34;没有上传文件＆＃34;等？
的index.php：
<?php
/*
* jQuery File Upload Plugin PHP Example 5.14
* https://github.com/blueimp/jQuery-File-Upload
*
* Copyright 2010, Sebastian Tschan
* https://blueimp.net
*
* Licensed under the MIT license:
* http://www.opensource.org/licenses/MIT
*/
$options = array(
'delete_type' => 'POST',
'db_host' => 'localhost',
'db_user' => 'helloworld',
'db_pass' => 'helloworld',
'db_name' => 'helloworld',
'db_table' => 'files'
);
error_reporting(E_ALL | E_STRICT);
require('UploadHandler.php');
class CustomUploadHandler extends UploadHandler {
protected function initialize() {
$this->db = new mysqli(
$this->options['db_host'],
$this->options['db_user'],
$this->options['db_pass'],
$this->options['db_name']
);
parent::initialize();
$this->db->close();
}
protected function handle_form_data($file, $index) {
$file->title = @$_REQUEST['title'][$index];
$file->description = @$_REQUEST['description'][$index];
}
protected function handle_file_upload($uploaded_file, $name, $size, $type, $error,
$index = null, $content_range = null) {
$file = parent::handle_file_upload(
$uploaded_file, $name, $size, $type, $error, $index, $content_range
);
if (empty($file->error)) {
$sql = 'INSERT INTO `'.$this->options['db_table']
.'` (`name`, `size`, `type`, `title`, `description`)'
.' VALUES (?, ?, ?, ?, ?)';
$query = $this->db->prepare($sql);
$query->bind_param(
'sisss',
$file->name,
$file->size,
$file->type,
$file->title,
$file->description
);
$query->execute();
$file->id = $this->db->insert_id;
}
return $file;
}
protected function set_additional_file_properties($file) {
parent::set_additional_file_properties($file);
if ($_SERVER['REQUEST_METHOD'] === 'GET') {
$sql = 'SELECT `id`, `type`, `title`, `description` FROM `'
.$this->options['db_table'].'` WHERE `name`=?';
$query = $this->db->prepare($sql);
$query->bind_param('s', $file->name);
$query->execute();
$query->bind_result(
$id,
$type,
$title,
$description
);
while ($query->fetch()) {
$file->id = $id;
$file->type = $type;
$file->title = $title;
$file->description = $description;
}
}
}
public function delete($print_response = true) {
$response = parent::delete(false);
foreach ($response as $name => $deleted) {
if ($deleted) {
$sql = 'DELETE FROM `'
.$this->options['db_table'].'` WHERE `name`=?';
$query = $this->db->prepare($sql);
$query->bind_param('s', $name);
$query->execute();
}
}
return $this->generate_response($response, $print_response);
}
}
$upload_handler = new CustomUploadHandler($options);
基本-plus.html
<form id="fileupload" action="server/php/" method="POST" enctype="multipart/form-data">
<!-- The fileinput-button span is used to style the file input field as button -->
<span class="btn btn-success fileinput-button">
<i class="glyphicon glyphicon-plus"></i>
<span>Add files...</span>
<!-- The file input field used as target for the file upload widget -->
<input id="fileupload" type="file" name="files[]" multiple>
</span>
<br>
<br>
<!-- The global progress bar -->
<div id="progress" class="progress">
<div class="progress-bar progress-bar-success"></div>
</div>
<!-- The container for the uploaded files -->
<div id="files" class="files"></div>
<label class="title">
<span>Title:</span><br>
<input name="title[]" class="form-control" value="testtitel">
</label>
<label class="description">
<span>Description:</span><br>
<input name="description[]" class="form-control" value="testdescription">
</label>
</form>
<script>
/*jslint unparam: true, regexp: true */
/*global window, $ */
$(function () {
'use strict';
// Change this to the location of your server-side upload handler:
var url = window.location.hostname === 'blueimp.github.io' ?
'//jquery-file-upload.appspot.com/' : 'server/php/',
uploadButton = $('<button/>')
.addClass('btn btn-primary')
.prop('disabled', true)
.text('Processing...')
.on('click', function () {
var $this = $(this),
data = $this.data();
$this
.off('click')
.text('Abort')
.on('click', function () {
$this.remove();
data.abort();
});
data.submit().always(function () {
$this.remove();
});
});
$('#fileupload').fileupload({
url: url,
dataType: 'json',
autoUpload: false,
acceptFileTypes: /(\.|\/)(gif|jpe?g|png)$/i,
maxFileSize: 5000000, // 5 MB
// Enable image resizing, except for Android and Opera,
// which actually support image resizing, but fail to
// send Blob objects via XHR requests:
disableImageResize: /Android(?!.*Chrome)|Opera/
.test(window.navigator.userAgent),
previewMaxWidth: 100,
previewMaxHeight: 100,
previewCrop: true
}).on('fileuploadadd', function (e, data) {
data.context = $('<div/>').appendTo('#files');
$.each(data.files, function (index, file) {
var node = $('<p/>')
.append($('<span/>').text(file.name));
if (!index) {
node
.append('<br>')
.append(uploadButton.clone(true).data(data));
}
node.appendTo(data.context);
});
}).on('fileuploadprocessalways', function (e, data) {
var index = data.index,
file = data.files[index],
node = $(data.context.children()[index]);
if (file.preview) {
node
.prepend('<br>')
.prepend(file.preview);
}
if (file.error) {
node
.append('<br>')
.append($('<span class="text-danger"/>').text(file.error));
}
if (index + 1 === data.files.length) {
data.context.find('button')
.text('Upload')
.prop('disabled', !!data.files.error);
}
}).on('fileuploadprogressall', function (e, data) {
var progress = parseInt(data.loaded / data.total * 100, 10);
$('#progress .progress-bar').css(
'width',
progress + '%'
);
}).on('fileuploaddone', function (e, data) {
$.each(data.result.files, function (index, file) {
if (file.url) {
var link = $('<a>')
.attr('target', '_blank')
.prop('href', file.url);
$(data.context.children()[index])
.wrap(link);
} else if (file.error) {
var error = $('<span class="text-danger"/>').text(file.error);
$(data.context.children()[index])
.append('<br>')
.append(error);
}
});
}).on('fileuploadfail', function (e, data) {
$.each(data.files, function (index) {
var error = $('<span class="text-danger"/>').text('File upload failed.');
$(data.context.children()[index])
.append('<br>')
.append(error);
});
}).prop('disabled', !$.support.fileInput)
.parent().addClass($.support.fileInput ? undefined : 'disabled');
});
</script>
main.js
/*
* jQuery File Upload Plugin JS Example 8.9.1
* https://github.com/blueimp/jQuery-File-Upload
*
* Copyright 2010, Sebastian Tschan
* https://blueimp.net
*
* Licensed under the MIT license:
* http://www.opensource.org/licenses/MIT
*/
/* global $, window */
$(function () {
'use strict';
// Initialize the jQuery File Upload widget:
$('#fileupload').fileupload({
url: 'server/php/'
}).on('fileuploadsubmit', function (e, data) {
data.formData = data.context.find(':input').serializeArray();
});
// Enable iframe cross-domain access via redirect option:
$('#fileupload').fileupload(
'option',
'redirect',
window.location.href.replace(
/\/[^\/]*$/,
'/cors/result.html?%s'
)
);
if (window.location.hostname === 'blueimp.github.io') {
// Demo settings:
$('#fileupload').fileupload('option', {
url: '//jquery-file-upload.appspot.com/',
// Enable image resizing, except for Android and Opera,
// which actually support image resizing, but fail to
// send Blob objects via XHR requests:
disableImageResize: /Android(?!.*Chrome)|Opera/
.test(window.navigator.userAgent),
maxFileSize: 5000000,
acceptFileTypes: /(\.|\/)(gif|jpe?g|png)$/i
});
// Upload server status check for browsers with CORS support:
if ($.support.cors) {
$.ajax({
url: '//jquery-file-upload.appspot.com/',
type: 'HEAD'
}).fail(function () {
$('<div class="alert alert-danger"/>')
.text('Upload server currently unavailable - ' +
new Date())
.appendTo('#fileupload');
});
}
} else {
// Load existing files:
$('#fileupload').addClass('fileupload-processing');
$.ajax({
// Uncomment the following to send cross-domain cookies:
//xhrFields: {withCredentials: true},
url: $('#fileupload').fileupload('option', 'url'),
dataType: 'json',
context: $('#fileupload')[0]
}).always(function () {
$(this).removeClass('fileupload-processing');
});
}
});
答案 0 :(得分：1)
你的网络堆栈是什么意思？
ie：转到＆＃34;开发者＆＃34;在chrome中查看，（view-＆gt; Developer-＆gt; Developer Tools）， 并打开网络＆＃34;选项卡，并尝试上传，并查看请求，响应等。
可能会有很多亮点。
我在javascript和java中使用过此插件，但没有使用php。
另外：找一个上传文件的真正的简单示例（如果你需要使用它，可以使用php），并从那里开始构建。