1. 簡介
Plupload是不支持斷點續傳的，但是他支持分片上傳，因此我們只需要打開其分片上傳后，在文件上傳之前請求一個服務器當前文件已上傳的大小，
如果上傳大小為0則認為沒有上傳過，重新上傳，如果上傳文件大小大於0則從已上傳的切片的下一個切片開始上傳。
Plupload分片上傳使用了html5的新特性，針對ie8 ie9等不支持html5的情況，采用flash等進行分片上傳，
但是plupload不建議采用flash分片上傳，因為flash在分片上傳讀取待上傳文件時不能讀取一部分，只能將文件全部加載到內存中再進行分片上傳，會消耗客戶端內存。
因此默認情況沒有打開分片上傳，而且根據他官方給的強制打開方法也不好使.
1 <!DOCTYPE html>
2 <html xmlns="http://www.w3.org/1999/xhtml" dir="ltr">
3 <head>
4 <meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
5 <script type="text/javascript" src="../js/plupload.full.min.js"></script>
6 </head>
7
8 <body style="font: 13px Verdana; background: #eee; color: #333">
9
10 <h1>斷點上傳</h1>
11 <p>Shows you how to use the core plupload API.</p>
12 <div id="filelist">Your browser doesn't have Flash, Silverlight or HTML5 support.</div>
13 <br/>
14
15 <div id="container">
16 <a id="pickfiles" href="javascript:;">[選擇文件]</a>
17 <a id="uploadfiles" href="javascript:;">[上傳文件]</a>
18 </div>
19
20 <br/>
21 <pre id="console"></pre>
22
23 <script type="text/javascript">
24
25 var uploader = new plupload.Uploader({
26 runtimes: 'html5,flash,silverlight,html4',
27 browse_button: 'pickfiles', // you can pass an id...
28 container: document.getElementById('container'), // ... or DOM Element itself
29 url: 'upload.php',
30 flash_swf_url: '../js/Moxie.swf',
31 silverlight_xap_url: '../js/Moxie.xap',
32 chunk_size: '2000kb', //分片上傳文件時，每片文件被切割成的大小，為數字時單位為字節
33 max_retries: 100, //當發生plupload.HTTP_ERROR錯誤時的重試次數，為0時表示不重試
34 filters: {
35 max_file_size: '10G',
36 mime_types: [
37 {title: "Image files", extensions: "jpg,gif,png"},
38 {title: "Zip files", extensions: "zip"},
39 {title: "Video Files", extensions: "dat,asf,rm,ram,3gp,mov,m4v,dvix,dv,qt,divx,cpk,fli,flc,mod,mp4,wmv,flv,avi,mkv,vob,mpg,rmvb,mpeg,mov,mts"}
40
41 ],
42 multi_selection: true,
43 },
44
45 init: {
46 PostInit: function () {
47 document.getElementById('filelist').innerHTML = '';
48
49 document.getElementById('uploadfiles').onclick = function () {
50 uploader.start();
51 return false;
52 };
53 },
54
55 FilesAdded: function (up, files) {
56 plupload.each(files, function (file) {
57 document.getElementById('filelist').innerHTML += '<div id="' + file.id + '">' + file.name + ' (' + plupload.formatSize(file.size) + ') <b></b></div>';
58 });
59 },
60
61 UploadProgress: function (up, file) {
62 document.getElementById(file.id).getElementsByTagName('b')[0].innerHTML = '<span>' + file.percent + "%</span>";
63 },
64
65 Error: function (up, err) {
66 document.getElementById('console').appendChild(document.createTextNode("\nError #" + err.code + ": " + err.message));
67 }
68 }
69 });
70
71 uploader.init();
72 </script>
73 </body>
74 </html>
<php部分>
1 <?php
2 /**
3 * upload.php
4 *
5 * Copyright 2013, Moxiecode Systems AB
6 * Released under GPL License.
7 *
8 * License: http://www.plupload.com/license
9 * Contributing: http://www.plupload.com/contributing
10 */
11
12 #!! IMPORTANT:
13 #!! this file is just an example, it doesn't incorporate any security checks and
14 #!! is not recommended to be used in production environment as it is. Be sure to
15 #!! revise it and customize to your needs.
16
17
18 // Make sure file is not cached (as it happens for example on iOS devices)
19 header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
20 header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
21 header("Cache-Control: no-store, no-cache, must-revalidate");
22 header("Cache-Control: post-check=0, pre-check=0", false);
23 header("Pragma: no-cache");
24
25 /*
26 // Support CORS
27 header("Access-Control-Allow-Origin: *");
28 // other CORS headers if any...
29 if ($_SERVER['REQUEST_METHOD'] == 'OPTIONS') {
30 exit; // finish preflight CORS requests here
31 }
32 */
33
34 // 5 minutes execution time
35 @set_time_limit(5 * 60);
36
37 // Uncomment this one to fake upload time
38 // usleep(5000);
39
40 // Settings
41 $targetDir = ini_get("upload_tmp_dir") . DIRECTORY_SEPARATOR . "plupload";
42 //$targetDir = 'uploads';
43 $cleanupTargetDir = true; // Remove old files
44 $maxFileAge = 5 * 3600; // Temp file age in seconds
45
46
47 error_log(var_export($_REQUEST,true),3,'/home/zhouyu/txt.log');
48
49 // Create target dir
50 if (!file_exists($targetDir)) {
51 @mkdir($targetDir);
52 }
53
54 // Get a file name
55 if (isset($_REQUEST["name"])) {
56 $fileName = $_REQUEST["name"];
57 } elseif (!empty($_FILES)) {
58 $fileName = $_FILES["file"]["name"];
59 } else {
60 $fileName = uniqid("file_");
61 }
62
63 $filePath = $targetDir . DIRECTORY_SEPARATOR . $fileName;
64
65 // Chunking might be enabled
66 $chunk = isset($_REQUEST["chunk"]) ? intval($_REQUEST["chunk"]) : 0;
67 $chunks = isset($_REQUEST["chunks"]) ? intval($_REQUEST["chunks"]) : 0;
68
69
70 // Remove old temp files
71 if ($cleanupTargetDir) {
72 if (!is_dir($targetDir) || !$dir = opendir($targetDir)) {
73 die('{"jsonrpc" : "2.0", "error" : {"code": 100, "message": "Failed to open temp directory."}, "id" : "id"}');
74 }
75
76 while (($file = readdir($dir)) !== false) {
77 $tmpfilePath = $targetDir . DIRECTORY_SEPARATOR . $file;
78
79 // If temp file is current file proceed to the next
80 if ($tmpfilePath == "{$filePath}.part") {
81 continue;
82 }
83
84 // Remove temp file if it is older than the max age and is not the current file
85 if (preg_match('/\.part$/', $file) && (filemtime($tmpfilePath) < time() - $maxFileAge)) {
86 @unlink($tmpfilePath);
87 }
88 }
89 closedir($dir);
90 }
91
92
93 // Open temp file
94 if (!$out = @fopen("{$filePath}.part", $chunks ? "ab" : "wb")) {
95 die('{"jsonrpc" : "2.0", "error" : {"code": 102, "message": "Failed to open output stream."}, "id" : "id"}');
96 }
97
98 if (!empty($_FILES)) {
99 if ($_FILES["file"]["error"] || !is_uploaded_file($_FILES["file"]["tmp_name"])) {
100 die('{"jsonrpc" : "2.0", "error" : {"code": 103, "message": "Failed to move uploaded file."}, "id" : "id"}');
101 }
102
103 // Read binary input stream and append it to temp file
104 if (!$in = @fopen($_FILES["file"]["tmp_name"], "rb")) {
105 die('{"jsonrpc" : "2.0", "error" : {"code": 101, "message": "Failed to open input stream."}, "id" : "id"}');
106 }
107 } else {
108 if (!$in = @fopen("php://input", "rb")) {
109 die('{"jsonrpc" : "2.0", "error" : {"code": 101, "message": "Failed to open input stream."}, "id" : "id"}');
110 }
111 }
112
113 while ($buff = fread($in, 4096)) {
114 fwrite($out, $buff);
115 }
116
117 @fclose($out);
118 @fclose($in);
119
120 // Check if file has been uploaded
121 if (!$chunks || $chunk == $chunks - 1) {
122 // Strip the temp .part suffix off
123 rename("{$filePath}.part", $filePath);
124 }
125
126 // Return Success JSON-RPC response
127 die('{"jsonrpc" : "2.0", "result" : null, "id" : "id"}');
