webuploader实现大文件上传

最新推荐文章于 2025-12-02 15:55:42 发布

转载最新推荐文章于 2025-12-02 15:55:42 发布 · 1.7k 阅读

本文介绍了一个使用Webuploader插件的大文件（视频、音频）上传方案，详细解释了如何配置插件参数，实现文件切片上传，并展示了如何在PHP后端进行分片合并，确保上传过程的稳定性和效率。

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。官网：https://dwz.cn/fgXtRtnu

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;
}