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，大家也可以参考这篇文章进行学习：《web uploader文件上传插件使用详解》
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
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jquery(function() {
$list = $('#thelist'),
$btn = $('#ctlbtn'),
state = 'pending',
uploader;
uploader = webuploader.create({
// 不压缩image
resize: false,
// swf文件路径
swf: 'uploader.swf',
// 文件接收服务端。
server: upload.php,
// 选择文件的按钮。可选。
// 内部根据当前运行是创建，可能是input元素，也可能是flash.
pick: '#picker',
chunked: true,
chunksize:2*1024*1024,
auto: true,
accept: {
title: 'images',
extensions: 'gif,jpg,jpeg,bmp,png',
mimetypes: 'image/*'
}
});
upload.php处理
以下是根据别人的例子自己拿来改的php 后台代码
header("expires: mon, 26 jul 1997 05:00:00 gmt");
header("last-modified: " . gmdate("d, d m y h:i:s") . " gmt");
header("cache-control: no-store, no-cache, must-revalidate");
header("cache-control: post-check=0, pre-check=0", false);
header("pragma: no-cache");
if ($_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
$maxfileage = 5 * 3600; // temp file age in seconds
// create target dir
if (!file_exists($targetdir)) {
@mkdir($targetdir);
}
// create target dir
if (!file_exists($uploaddir)) {
@mkdir($uploaddir);
}
// get a file name
if (isset($_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($_request["chunks"]) : 1;
// remove old temp files
if ($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 . $file;
// if temp file is current file proceed to the next
if ($tmpfilepath == "{$filepath}_{$chunk}.part" || $tmpfilepath == "{$filepath}_{$chunk}.parttmp") {
continue;
}
// remove temp file if it is older than the max age and is not the current file
if (preg_match('/\.(part|parttmp)$/', $file) && (@filemtime($tmpfilepath) < time() - $maxfileage)) {
@unlink($tmpfilepath);
}
}
closedir($dir);
}
// open temp file
if (!$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($_files["file"]["tmp_name"])) {
die('{"jsonrpc" : "2.0", "error" : {"code": 103, "message": "failed to move uploaded file."}, "id" : "id"}');
}
// read binary input stream and append it to temp file
if (!$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 response
die('{"jsonrpc" : "2.0", "result" : null, "id" : "id"}');
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