拓网超大文件上传组件
目前在公司项目里遇到了需要上传大文件（视频、音频）的情况，特此记录。
此次项目引用了一款名为Webuploader的插件。文章末尾附上下载链接
html代码：
<html>
<head>
<meta charset="utf-8">
<script src="jquery-2.1.1.js"></script>
<link rel="stylesheet" type="text/css" href="webuploader.css">
<script type="text/javascript" src="webuploader.js"></script>
</head>
<body>
<style>
.progress-bar{background-color:red}
</style>
<div id="uploader" class="wu-example">
<div id="thelist" class="uploader-list"></div>
<div class="btns">
<div id="picker">选择文件</div>
<button id="ctlBtn" class="btn btn-default">开始上传</button>
</div>
</div>
<script>
$(function(){
var uploader = WebUploader.create({
swf: 'Uploader.swf',
server: 'http://www.test.loc/webuploader/upload.php',
pick: '#picker',
resize: false,
chunked: true //是否切片
});
var $list = $('#thelist'),
state = 'pending';
uploader.on( 'fileQueued', function( file ) {
$list.append( '<div id="' + file.id + '" class="item">' +
'<h4 class="info">' + file.name + '</h4>' +
'<p class="state">已添加...</p>' +
'</div>' );
});
uploader.on( 'uploadProgress', function( file, percentage ) {
var $li = $( '#'+file.id ),
$percent = $li.find('.progress .progress-bar');
if ( !$percent.length ) {
$percent = $('<div class="progress progress-striped active">' +
'<div class="progress-bar" role="progressbar" style="width: 0%;height:30px;">' +
'</div>' +
'</div>').appendTo( $li ).find('.progress-bar');
}
$li.find('p.state').text('上传中');
$percent.css( 'width', percentage * 100 + '%' );
});
uploader.on( 'uploadSuccess', function( file ) {
$( '#'+file.id ).find('p.state').text('已上传');
});
uploader.on( 'uploadError', function( file ) {
$( '#'+file.id ).find('p.state').text('上传出错');
});
uploader.on( 'uploadComplete', function( file ) {
$( '#'+file.id ).find('.progress').fadeOut();
});
$('#ctlBtn').on( 'click', function() {
if ( state === 'uploading' ) {
uploader.stop(true);
state = "pending";
} else {
uploader.upload();
state = "uploading";
}
});
})
</script>
</body>
</html>
后台upload.php
<?php
header('Access-Control-Allow-Origin:*');
header('Access-Control-Allow-Headers: X-Requested-With,X_Requested_With');
$aFiles = getUploadFiles();
saveMultiFiles($aFiles[0]);
function getUploadFiles()
{
$aFiles = $_FILES;
$aMultiFiles = array();
// 判断是否是分片上传
$iChunk = isset($_REQUEST["chunk"]) ? intval($_REQUEST["chunk"]) : 0;
$iChunks = isset($_REQUEST["chunks"]) ? intval($_REQUEST["chunks"]) : 0;
foreach ($aFiles as $sKey => $mFiles) {
if (is_array($mFiles['name'])) {
$iCnt = count($mFiles['name']);
for ($i = 0; $i < $iCnt; ++$i) {
$aMultiFiles[] = array(
'key' => $sKey . '_' . $i,
'name' => $mFiles['name'][$i],
'tmp_name' => $mFiles['tmp_name'][$i],
'error' => $mFiles['error'][$i],
'size' => $mFiles['size'][$i],
'chunk' => $iChunk,
'chunks' => $iChunks,
);
}
} else {
$aMultiFiles[] = array(
'key' => $sKey,
'name' => $mFiles['name'],
'tmp_name' => $mFiles['tmp_name'],
'error' => $mFiles['error'],
'size' => $mFiles['size'],
'chunk' => $iChunk,
'chunks' => $iChunks,
);
}
}
return $aMultiFiles;
}
/**
* 将临时文件合并成正式文件
*/
function saveMultiFiles($aFile)
{
$tmp_file_path = './tmp';
$p_sName = $aFile['name'];
$p_sNameFilename = pathinfo($p_sName, PATHINFO_FILENAME);
$p_sFilePath = $tmp_file_path.DIRECTORY_SEPARATOR.$p_sNameFilename;
$p_sFilenamePath = $tmp_file_path.DIRECTORY_SEPARATOR.$p_sName;
if (!file_exists($p_sFilenamePath)) {
fopen($p_sFilenamePath, "w");
}
$p_sTmpName = $aFile['tmp_name'];
$p_iError = $aFile['error'];
$p_iSize = $aFile['size'];
$iChunk = $aFile['chunk'] ;
$iChunks = $aFile['chunks'];
$iError = 0;
if ($p_iError > 0) {
// 文件上传出错
$iError = 1;
$mReturn = '文件上传出错';
break;
}
if (!is_uploaded_file($p_sTmpName)) {
$iError = 2;
$mReturn = 'upload error, use http post to upload';
break;
}
$oFInfo = finfo_open();
$sMimeType = finfo_file($oFInfo, $p_sTmpName, FILEINFO_MIME_TYPE);
finfo_close($oFInfo);
$sExtension = pathinfo($p_sName, PATHINFO_EXTENSION);
if (empty($sExtension)) {
$iError = 2;
$mReturn = 'upload error, The file does not have an extension ';
break;
}
if (!$in = @fopen($p_sTmpName, "rb")) {
$iError = 1;
$mReturn = "Failed to open input stream.";
break;
}
if (!$out = @fopen("{$p_sFilePath}_{$iChunk}.parttmp", "wb")) {
$iError = 1;
$mReturn = "Failed to open output stream.";
break;
}
while ($buff = fread($in, 4096)) {
fwrite($out, $buff);
}
@fclose($out);
@fclose($in);
rename("{$p_sFilePath}_{$iChunk}.parttmp", "{$p_sFilePath}_{$iChunk}.part");
$done = true;
for ($index = 0; $index < $iChunks; $index++) {
if (!file_exists("{$p_sFilePath}_{$index}.part")) {
$done = false;
break;
}
}
if ($done) {
$sDestFile = './upload/'.time().'.'.$sExtension; //合并文件地址
if (!$out = @fopen($sDestFile, "wb")) {
$iError = 1;
$mReturn = "1Failed to open output stream.";
break;
}
$sFileSize = 0;
if (flock($out, LOCK_EX)) {
for ($index = 0; $index < $iChunks; $index++) {
if (!$in = @fopen("{$p_sFilePath}_{$index}.part", "rb")) {
break;
}
while ($buff = fread($in, 4096)) {
fwrite($out, $buff);
}
@fclose($in);
@unlink("{$p_sFilePath}_{$index}.part");
}
flock($out, LOCK_UN);
}
@fclose($out);
// 删除临时文件
@unlink($p_sFilenamePath);
}
return true;
}
PS：事先需设置好服务器（nginx）和PHP的最大上传文件大小限制，不然会报错
原文链接：https://blog.csdn.net/johnny880730/article/details/77837144
功能展示截图：
Mac控件安装教程与演示说明：
Linux控件安装教程与演示说明：
控件包下载：
MacOS：http://t.cn/Aijg65dZ
Linux：http://t.cn/Aijg6fRV
cab(x86)：http://t.cn/Ai9pmG8S
cab(x64)：http://t.cn/Ai9pm04B
示例下载：
asp.net：http://t.cn/Ai9pue4A
在线教程：
asp.net-文件管理器教程：http://t.cn/AiNhmilv
个人博客：http://t.cn/AiY7heL0
