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利用WebUploader实现大文件上传和视频上传

2018-01-19 09:29 573 查看
文件上传是网站开发必不可少的,常见的有图片上传。但是大文件和视频上传不常见。这里我将自己写的视频上传demo贴出来供大家参考:利用是最新的WebUploader插件请 下载使用最新版即可js代码[javascript] view plain copy_extensions ='3gp,mp4,rmvb,mov,avi,m4v';
_mimeTypes ='video/*,audio/*,application/*';

$(function(){
var chunkSize = 500 * 1024; //分块大小
var uniqueFileName = null; //文件唯一标识符
var md5Mark = null;

// var _backEndUrl = '';

WebUploader.Uploader.register({
"before-send-file": "beforeSendFile"
, "before-send": "beforeSend"
, "after-send-file": "afterSendFile"
}, {
beforeSendFile: function(file){
console.log(file);
//秒传验证
var task = new $.Deferred();
var start = new Date().getTime();
(new WebUploader.Uploader()).md5File(file, 0, 10*1024*1024).progress(function(percentage){
}).then(function(val){

md5Mark = val;
_userInfo.md5 = val;

$.ajax({
type: "POST",
url: _backEndUrl,
data: {
status: "md5Check",
md5: val
},
cache: false,
timeout: 1000, //todo 超时的话,只能认为该文件不曾上传过
dataType: "json"
}).then(function(data, textStatus, jqXHR){

if(data.ifExist){ //若存在,这返回失败给WebUploader,表明该文件不需要上传
task.reject();

uploader.skipFile(file);
file.path = data.path;
UploadComlate(file);
}else{
task.resolve();
//拿到上传文件的唯一名称,用于断点续传
uniqueFileName = md5(_userInfo.openid+_userInfo.time);
}
}, function(jqXHR, textStatus, errorThrown){ //任何形式的验证失败,都触发重新上传
task.resolve();
//拿到上传文件的唯一名称,用于断点续传
uniqueFileName = md5(_userInfo.openid+_userInfo.time);
});
});
return $.when(task);
}
, beforeSend: function(block){
//分片验证是否已传过,用于断点续传
var task = new $.Deferred();
$.ajax({
type: "POST"
, url: _backEndUrl
, data: {
status: "chunkCheck"
, name: uniqueFileName
, chunkIndex: block.chunk
, size: block.end - block.start
}
, cache: false
, timeout: 1000 //todo 超时的话,只能认为该分片未上传过
, dataType: "json"
}).then(function(data, textStatus, jqXHR){
if(data.ifExist){ //若存在,返回失败给WebUploader,表明该分块不需要上传
task.reject();
}else{
task.resolve();
}
}, function(jqXHR, textStatus, errorThrown){ //任何形式的验证失败,都触发重新上传
task.resolve();
});

return $.when(task);
}
, afterSendFile: function(file){
var chunksTotal = 0;
if((chunksTotal = Math.ceil(file.size/chunkSize)) > 1){
//合并请求
var task = new $.Deferred();
$.ajax({
type: "POST"
, url: _backEndUrl
, data: {
status: "chunksMerge"
, name: uniqueFileName
, chunks: chunksTotal
, ext: file.ext
, md5: md5Mark
}
, cache: false
, dataType: "json"
}).then(function(data, textStatus, jqXHR){

//todo 检查响应是否正常

task.resolve();
file.path = data.path;
UploadComlate(file);

}, function(jqXHR, textStatus, errorThrown){
task.reject();
});

return $.when(task);
}else{
UploadComlate(file);
}
}
});

var uploader = WebUploader.create({
swf: "./Uploader.swf",
server: _backEndUrl, //服务器处理文件的路径
pick: "#picker", //指定选择文件的按钮,此处放的是id
resize: false,
dnd: "#theList", //上传文件的拖拽容器(即,如果选择用拖拽的方式选择文件进行上传,应该要把文件拖拽到的区域容器)
paste: document.body, //[可选] [默认值:undefined]指定监听paste事件的容器,如果不指定,不启用此功能。此功能为通过粘贴来添加截屏的图片。建议设置为document.body
disableGlobalDnd: true, //[可选] [默认值:false]是否禁掉整个页面的拖拽功能,如果不禁用,图片拖进来的时候会默认被浏览器打开。
compress: false,
prepareNextFile: true,
chunked: true,
chunkSize: chunkSize,
chunkRetry: 2, //[可选] [默认值:2]如果某个分片由于网络问题出错,允许自动重传多少次?
threads: true, //[可选] [默认值:3] 上传并发数。允许同时最大上传进程数。
formData: function(){return $.extend(true, {}, _userInfo);},
fileNumLimit: 1,
fileSingleSizeLimit: 50 * 1024 * 1024,// 限制在50M
duplicate: true,
accept: {
title: '大文件上传', //文字描述
extensions: _extensions, //允许的文件后缀,不带点,多个用逗号分割。,jpg,png,
mimeTypes: _mimeTypes, //多个用逗号分割。image/*,
},
});

/**
* 验证文件格式以及文件大小
*/
uploader.on("error",function (type,handler){
if (type=="Q_TYPE_DENIED"){
swal({
title:'',
text: '请上传MP4格式的视频~',
type: "warning",
confirmButtonColor: "#DD6B55",
confirmButtonText: "我知道了",
});
}else if(type=="F_EXCEED_SIZE"){
swal({
title:'',
text: '视频大小不能超过50M哦~',
type: "warning",
confirmButtonColor: "#DD6B55",
confirmButtonText: "我知道了",
});
}
});

uploader.on("fileQueued", function(file){
$('#theList').show();
$("#theList").append('<li id="'+file.id+'" class="upload_li">' +
' <img /> <span class="file_name upload_li">'+file.name+'</span></li><li class="upload_li"><span class="itemUpload weui-btn weui-btn_mini weui-btn_primary">上传</span><span class="itemStop weui-btn weui-btn_mini weui-btn_default">暂停</span><span class="itemDel weui-btn weui-btn_mini weui-btn_warn">删除</span></li><li class="upload_li">' +
'<div id="percentage'+file.id+'" class="percentage"><div class="weui-progress__bar"><div class="weui-progress__inner-bar js_progress" style="width: 0%;"></div> <b id="pers"></b> </div></div>' +
'</li>');

var $img = $("#" + file.id).find("img");

uploader.makeThumb(file, function(error, src){
if(error){
$img.replaceWith("<span class='no_view'>视频暂不能预览</span>");
}

$img.attr("src", src);
});

});

$("#theList").on("click", ".itemUpload", function(){
uploader.upload();

//"上传"-->"暂停"
$(this).hide();
$(".itemStop").css('display','inline-block');
$(".itemStop").show();
});

$("#theList").on("click", ".itemStop", function(){
uploader.stop(true);

//"暂停"-->"上传"
$(this).hide();
$(".itemUpload").show();
});

//todo 如果要删除的文件正在上传(包括暂停),则需要发送给后端一个请求用来清除服务器端的缓存文件
$("#theList").on("click", ".itemDel", function(){
uploader.removeFile($('.upload_li').attr("id")); //从上传文件列表中删除

$('.upload_li').remove(); //从上传列表dom中删除
});

uploader.on("uploadProgress", function(file, percentage){
$(".percentage").find('.js_progress').css("width",percentage * 100 + "%");
$(".percentage").find('#pers').text(parseInt(percentage * 100) + "%");
});

function UploadComlate(file){
console.log(file);
if(file && file.name){
$('#vedio').val(file.name);
$(".percentage").find('#pers').html("<span style='color:green;'>上传完毕</span>");
$(".itemStop").hide();
$(".itemUpload").hide();
$(".itemDel").hide();
}else{
$(".percentage").find('#pers').html("<span style='color:red;'>上传失败,请您检查网络状况~</span>");
$(".itemStop").hide();
$(".itemUpload").hide();
}

}

})

PHP控制器[php] view plain copypublic function vupload(){
set_time_limit (0);
//关闭缓存
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");

$ip_path = './uploads/'.$_SESSION['userinfo']['id'];
$save_path = 'uploads/'.$_SESSION['userinfo']['id'];
$uploader = new \Org\Util\Vupload;
$uploader->set('path',$ip_path);
//用于断点续传,验证指定分块是否已经存在,避免重复上传
if(isset($_POST['status'])){
if($_POST['status'] == 'chunkCheck'){
$target = $ip_path.'/'.$_POST['name'].'/'.$_POST['chunkIndex'];
if(file_exists($target) && filesize($target) == $_POST['size']){
die('{"ifExist":1}');
}
die('{"ifExist":0}');

}elseif($_POST['status'] == 'md5Check'){

//todo 模拟持久层查询
$dataArr = array(
'b0201e4d41b2eeefc7d3d355a44c6f5a' => 'kazaff2.jpg'
);

if(isset($dataArr[$_POST['md5']])){
die('{"ifExist":1, "path":"'.$dataArr[$_POST['md5']].'"}');
}
die('{"ifExist":0}');
}elseif($_POST['status'] == 'chunksMerge'){

if($path = $uploader->chunksMerge($_POST['name'], $_POST['chunks'], $_POST['ext'])){
//todo 把md5签名存入持久层,供未来的秒传验证
session('video_path', $save_path.'/'.$path);
die('{"status":1, "path": "'.$save_path.'/'.$path.'"}');
}
die('{"status":0}');
}
}

if(($path = $uploader->upload('file', $_POST)) !== false){
if(!session('video_path')){
session('video_path', $save_path.'/'.$path);
}
die('{"status":1, "path": "'.$save_path.'/'.$path.'"}');
}
die('{"status":0}');
}

封装的上传类库
[php] view plain copy<?php
/**
*
* 版权所有:重庆市环境保护信息中心
* 作 者:Sqc
* 日 期:2016-12-06
* 版 本:1.0.0
* 功能说明:用于视频等上传。
*
**/
namespace Org\Util;
Class Vupload
{
//要配置的内容
private $path = "./uploads";
private $allowtype = array('jpg', 'gif', 'png', 'mp4', 'mp3','3gp','rmvb','mov','avi','m4v');
private $maxsize = 104857600;//
private $israndname = true;

private $originName;
private $tmpFileName;
private $fileType;
private $fileSize;
private $newFileName;
private $errorNum = 0;
private $errorMess = "";

private $isChunk = false;
private $indexOfChunk = 0;

public function _initialize(){
parent::_initialize();
}

/**
* 用于设置成员属性($path, $allowtype, $maxsize, $israndname)
* 可以通过连贯操作一次设置多个属性值
* @param $key 成员属性(不区分大小写)
* @param $val 为成员属性设置的值
* @return object 返回自己对象$this, 可以用于连贯操作
*/
function set($key, $val){
$key = strtolower($key);
if (array_key_exists($key, get_class_vars(get_class($this)))){
$this->setOption($key, $val);
}
return $this;
}

/**
* 调用该方法上传文件
* Enter description here ...
* @param $fileField 上传文件的表单名称
*
*/
function upload($fileField, $info){

//判断是否为分块上传
$this->checkChunk($info);

if (!$this->checkFilePath($this->path)){
$this->errorMess = $this->getError();
return false;
}

//将文件上传的信息取出赋给变量
$name = $_FILES[$fileField]['name'];
$tmp_name = $_FILES[$fileField]['tmp_name'];
$size = $_FILES[$fileField]['size'];
$error = $_FILES[$fileField]['error'];

//设置文件信息
if ($this->setFiles($name, $tmp_name, $size, $error)){

//如果是分块,则创建一个唯一名称的文件夹用来保存该文件的所有分块
if($this->isChunk){
$uploadDir = $this->path;
if($info){
$tmpName = $this->setDirNameForChunks();

if(!$this->checkFilePath($uploadDir . '/' . $tmpName)){
$this->errorMess = $this->getError();
return false;
}
}
// $tmpName = $this->setDirNameForChunks($info);
// if(!$this->checkFilePath($uploadDir . '/' . $tmpName)){
// $this->errorMess = $this->getError();
// return false;
// }

//创建一个对应的文件,用来记录上传分块文件的修改时间,用于清理长期未完成的垃圾分块
touch($uploadDir.'/'.$tmpName.'.tmp');
}

if($this->checkFileSize() && $this->checkFileType()){
$this->setNewFileName();
if ($this->copyFile()){
return $this->newFileName;
}
}
}

$this->errorMess = $this->getError();
return false;
}

public function chunksMerge($uniqueFileName, $chunksTotal, $fileExt){
$targetDir = $this->path.'/'.$uniqueFileName;
//检查对应文件夹中的分块文件数量是否和总数保持一致
if($chunksTotal > 1 && (count(scandir($targetDir)) - 2) == $chunksTotal){
//同步锁机制
$lockFd = fopen($this->path.'/'.$uniqueFileName.'.lock', "w");
if(!flock($lockFd, LOCK_EX | LOCK_NB)){
fclose($lockFd);
return false;
}

//进行合并
$this->fileType = $fileExt;
$finalName = $this->path.'/'.($this->setOption('newFileName', $this->proRandName()));
$file = fopen($finalName, 'wb');
for($index = 0; $index < $chunksTotal; $index++){
$tmpFile = $targetDir.'/'.$index;
$chunkFile = fopen($tmpFile, 'rb');
$content = fread($chunkFile, filesize($tmpFile));
fclose($chunkFile);
fwrite($file, $content);

//删除chunk文件
unlink($tmpFile);
}
fclose($file);
//删除chunk文件夹
rmdir($targetDir);
unlink($this->path.'/'.$uniqueFileName.'.tmp');

//解锁
flock($lockFd, LOCK_UN);
fclose($lockFd);
unlink($this->path.'/'.$uniqueFileName.'.lock');

return $this->newFileName;

}
return false;
}

//获取上传后的文件名称
public function getFileName(){
return $this->newFileName;
}

//上传失败后,调用该方法则返回,上传出错信息
public function getErrorMsg(){
return $this->errorMess;
}

//设置上传出错信息
public function getError(){
$str = "上传文件<font color='red'>{$this->originName}</font>时出错:";
switch ($this->errorNum) {
case 4:
$str.= "没有文件被上传";
break;
case 3:
$str.= "文件只有部分被上传";
break;
case 2:
$str.= "上传文件的大小超过了HTML表单中MAX_FILE_SIZE选项指定的值";
break;
case 1:
$str.= "上传的文件超过了php.ini中upload_max_filesize选项限制的值";
break;
case -1:
$str.= "未允许的类型";
break;
case -2:
$str.= "文件过大, 上传的文件夹不能超过{$this->maxsize}个字节";
break;
case -3:
$str.= "上传失败";
break;
case -4:
$str.= "建立存放上传文件目录失败,请重新指定上传目录";
break;
case -5:
$str.= "必须指定上传文件的路径";
break;

default:
$str .= "未知错误";
}
return $str."<br>";
}

//根据文件的相关信息为分块数据创建文件夹
//md5(当前登录用户的数据库id + 文件原始名称 + 文件类型 + 文件最后修改时间 + 文件总大小)
private function setDirNameForChunks(){
$str = $_SESSION['userinfo']['openid'].$_SESSION['userinfo']['report_time'];
return md5($str);
return $str;
}

//设置和$_FILES有关的内容
private function setFiles($name="", $tmp_name="", $size=0, $error=0){
$this->setOption('errorNum', $error);
if ($error) {
return false;
}
$this->setOption('originName', $name);
$this->setOption('tmpFileName', $tmp_name);
$aryStr = explode(".", $name);
$this->setOption("fileType", strtolower($aryStr[count($aryStr)-1]));
$this->setOption("fileSize", $size);
return true;
}

private function checkChunk($info){
if(isset($info['chunks']) && $info['chunks'] > 0){
$this->setOption("isChunk", true);

if(isset($info['chunk']) && $info['chunk'] >= 0){
$this->setOption("indexOfChunk", $info['chunk']);

return true;
}

throw new Exception('分块索引不合法');
}

return false;
}

//为单个成员属性设置值
private function setOption($key, $val){
$this->$key = $val;
return $val;
}

//设置上传后的文件名称
private function setNewFileName(){
if($this->isChunk){ //如果是分块,则以分块的索引作为文件名称保存
$this->setOption('newFileName', $this->indexOfChunk);
}elseif($this->israndname) {
$this->setOption('newFileName', $this->proRandName());
}else{
$this->setOption('newFileName', $this->originName);
}
}

//检查上传的文件是否是合法的类型
private function checkFileType(){
if (in_array(strtolower($this->fileType), $this->allowtype)) {
return true;
}else{
$this->setOption('errorNum', -1);
return false;
}
}

//检查上传的文件是否是允许的大小
private function checkFileSize(){
if ($this->fileSize > $this->maxsize) {
$this->setOption('errorNum', -5);
return false;
}else{
return true;
}
}

//检查是否有存放上传文件的目录
private function checkFilePath($target){

if (empty($target)) {
$this->setOption('errorNum', -5);
return false;
}

if (!file_exists($target) || !is_writable($target)) {
if (!@mkdir($target, 0755)) {
$this->setOption('errorNum', -4);
return false;
}
}

$this->path = $target;
return true;
}

//设置随机文件名
private function proRandName(){
$fileName = date('YmdHis')."_".rand(100,999);
return $fileName.'.'.$this->fileType;
}

//复制上传文件到指定的位置
private function copyFile(){
if (!$this->errorNum) {
$path = rtrim($this->path, '/').'/';
$path.= $this->newFileName;
if (@move_uploaded_file($this->tmpFileName, $path)) {
return true;
}else{
$this->setOption('errorNum', -3);
return false;
}
}else{
return false;
}
}
}
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