webuploader 分片上传文件

最近研究了下大文件上传的方法，找到了webuploader js 插件进行大文件上传。

使用

使用webuploader分成简单直选要引入

<!--引入CSS--><link rel="stylesheet" type="text/css" href="webuploader文件夹/webuploader.css"><!--引入JS--><script type="text/javascript" src="webuploader文件夹/webuploader.js"></script>

HTML部分

<div id="uploader" class="wu-example"><!--用来存放文件信息--><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>

初始化Web Uploader

jQuery(function() {$list = $('#thelist'),$btn = $('#ctlBtn'),state = 'pending',uploader;uploader = WebUploader.create({// 不压缩imageresize: false,// swf文件路径swf: 'uploader.swf',// 文件接收服务端。server: upload.php,// 选择文件的按钮。可选。// 内部根据当前运行是创建，可能是input元素，也可能是flash.pick: '#picker',chunked: true,chunkSize:2*1024*1024,auto: true,accept: {title: 'Images',extensions: 'gif,jpg,jpeg,bmp,png',mimeTypes: 'image/*'}});

upload.php处理

一下是根据别人的例子自己拿来改的php 后台代码

header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");header("Cache-Control: no-store, no-cache, must-revalidate");header("Cache-Control: post-check=0, pre-check=0", false);header("Pragma: no-cache"); if ($_SERVER['REQUEST_METHOD'] == 'OPTIONS') {exit; // finish preflight CORS requests here}if ( !empty($_REQUEST[ 'debug' ]) ) {$random = rand(0, intval($_REQUEST[ 'debug' ]) );if ( $random === 0 ) {header("HTTP/1.0 500 Internal Server Error");exit;}}// header("HTTP/1.0 500 Internal Server Error");// exit;// 5 minutes execution time@set_time_limit(5 * 60);// Uncomment this one to fake upload time// usleep(5000);// Settings// $targetDir = ini_get("upload_tmp_dir") . DIRECTORY_SEPARATOR . "plupload";$targetDir = 'uploads'.DIRECTORY_SEPARATOR.'file_material_tmp';$uploadDir = 'uploads'.DIRECTORY_SEPARATOR.'file_material';$cleanupTargetDir = true; // Remove old files$maxFileAge = 5 * 3600; // Temp file age in seconds// Create target dirif (!file_exists($targetDir)) {@mkdir($targetDir);}// Create target dirif (!file_exists($uploadDir)) {@mkdir($uploadDir);}// Get a file nameif (isset($_REQUEST["name"])) {$fileName = $_REQUEST["name"];} elseif (!empty($_FILES)) {$fileName = $_FILES["file"]["name"];} else {$fileName = uniqid("file_");}$oldName = $fileName;$filePath = $targetDir . DIRECTORY_SEPARATOR . $fileName;// $uploadPath = $uploadDir . DIRECTORY_SEPARATOR . $fileName;// Chunking might be enabled$chunk = isset($_REQUEST["chunk"]) ? intval($_REQUEST["chunk"]) : 0;$chunks = isset($_REQUEST["chunks"]) ? intval($_REQUEST["chunks"]) : 1;// Remove old temp filesif ($cleanupTargetDir) {if (!is_dir($targetDir) || !$dir = opendir($targetDir)) {die('{"jsonrpc" : "2.0", "error" : {"code": 100, "message": "Failed to open temp directory."}, "id" : "id"}');}while (($file = readdir($dir)) !== false) {$tmpfilePath = $targetDir . DIRECTORY_SEPARATOR . $file;// If temp file is current file proceed to the nextif ($tmpfilePath == "{$filePath}_{$chunk}.part" || $tmpfilePath == "{$filePath}_{$chunk}.parttmp") {continue;}// Remove temp file if it is older than the max age and is not the current fileif (preg_match('/\.(part|parttmp)$/', $file) && (@filemtime($tmpfilePath) < time() - $maxFileAge)) {@unlink($tmpfilePath);}}closedir($dir);}// Open temp fileif (!$out = @fopen("{$filePath}_{$chunk}.parttmp", "wb")) {die('{"jsonrpc" : "2.0", "error" : {"code": 102, "message": "Failed to open output stream."}, "id" : "id"}');}if (!empty($_FILES)) {if ($_FILES["file"]["error"] || !is_uploaded_file($_FILES["file"]["tmp_name"])) {die('{"jsonrpc" : "2.0", "error" : {"code": 103, "message": "Failed to move uploaded file."}, "id" : "id"}');}// Read binary input stream and append it to temp fileif (!$in = @fopen($_FILES["file"]["tmp_name"], "rb")) {die('{"jsonrpc" : "2.0", "error" : {"code": 101, "message": "Failed to open input stream."}, "id" : "id"}');}} else {if (!$in = @fopen("php://input", "rb")) {die('{"jsonrpc" : "2.0", "error" : {"code": 101, "message": "Failed to open input stream."}, "id" : "id"}');}}while ($buff = fread($in, 4096)) {fwrite($out, $buff);}@fclose($out);@fclose($in);rename("{$filePath}_{$chunk}.parttmp", "{$filePath}_{$chunk}.part");$index = 0;$done = true;for( $index = 0; $index < $chunks; $index++ ) {if ( !file_exists("{$filePath}_{$index}.part") ) {$done = false;break;}}if ( $done ) {$pathInfo = pathinfo($fileName);$hashStr = substr(md5($pathInfo['basename']),8,16);$hashName = time() . $hashStr . '.' .$pathInfo['extension'];$uploadPath = $uploadDir . DIRECTORY_SEPARATOR .$hashName;if (!$out = @fopen($uploadPath, "wb")) {die('{"jsonrpc" : "2.0", "error" : {"code": 102, "message": "Failed to open output stream."}, "id" : "id"}');}if ( flock($out, LOCK_EX) ) {for( $index = 0; $index < $chunks; $index++ ) {if (!$in = @fopen("{$filePath}_{$index}.part", "rb")) {break;}while ($buff = fread($in, 4096)) {fwrite($out, $buff);}@fclose($in);@unlink("{$filePath}_{$index}.part");}flock($out, LOCK_UN);}@fclose($out);$response = ['success'=>true,'oldName'=>$oldName,'filePaht'=>$uploadPath,'fileSize'=>$data['size'],'fileSuffixes'=>$pathInfo['extension'],'file_id'=>$data['id'],];die(json_encode($response));}// Return Success JSON-RPC responsedie('{"jsonrpc" : "2.0", "result" : null, "id" : "id"}');

官方文档有提供各种API详细了解可以在官方文档里找到你想要的。