分片上传文件处理
2021-02-25 本文已影响0人
blank喵
此需要基于webuploader.js插件
1. 前端代码
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>webuploader</title>
</head>
<!--引入CSS-->
<link rel="stylesheet" type="text/css" href="/static/plugin/webuploader-0.1.5/webuploader.css">
<style>
#upload-container, #upload-list{width: 500px; margin: 0 auto; }
#upload-container{cursor: pointer; border-radius: 15px; background: #EEEFFF; height: 200px;}
#upload-list{height: 800px; border: 1px solid #EEE; border-radius: 5px; margin-top: 10px; padding: 10px 20px;}
#upload-container>span{widows: 100%; text-align: center; color: gray; display: block; padding-top: 15%;}
.upload-item{margin-top: 5px; padding-bottom: 5px; border-bottom: 1px dashed gray;}
.percentage{height: 5px; background: green;}
.btn-delete, .btn-retry{cursor: pointer; color: gray;}
.btn-delete:hover{color: orange;}
.btn-retry:hover{color: green;}
</style>
<!--引入JS-->
<body>
<div id="upload-container">
<span>点击或将文件拖拽至此上传</span>
</div>
<div id="upload-list">
<!-- <div class="upload-item">
<span>文件名：123</span>
<span data-file_id="" class="btn-delete">删除</span>
<span data-file_id="" class="btn-retry">重试</span>
<div class="percentage"></div>
</div> -->
</div>
<button id="picker" style="display: none;">点击上传文件</button>
</body>
<script type="text/javascript" src="https://jq.woshitime.top/jquery-3.5.1.min.js"></script>
<script type="text/javascript" src="/static/plugin/webuploader-0.1.5/webuploader.js"></script>
<script>
$('#upload-container').click(function(event) {
$("#picker").find('input').click();
});
var uploader = WebUploader.create({
auto: true,// 选完文件后，是否自动上传。
swf: '/static/plugin/webuploader-0.1.5/Uploader.swf',
// 文件接收服务端。
server: '{:Url("Index/fileupload")}',
dnd: '#upload-container',
pick: '#picker',// 内部根据当前运行是创建，可能是input元素，也可能是flash. 这里是div的id
// multiple: true, // 选择多个
chunked: true,// 开起分片上传。
threads: 1, // 上传并发数。允许同时最大上传进程数。
// method: 'POST', // 文件上传方式，POST或者GET。
chunkSize:10*1024, //*1024*1024分片上传，每片2M，默认是5M
fileVal:'upload', // [默认值：'file'] 设置文件上传域的name。
});
uploader.on('fileQueued', function(file) {
// 选中文件时要做的事情，比如在页面中显示选中的文件并添加到文件列表，获取文件的大小，文件类型等
// console.log(file.ext) // 获取文件的后缀
// console.log(file.size) // 获取文件的大小
// console.log(file.name);
var html = '<div class="upload-item"><span>文件名：'+file.name+'</span><span data-file_id="'+file.id+'" class="btn-delete">删除</span><span data-file_id="'+file.id+'" class="btn-retry">重试</span><div class="percentage '+file.id+'" style="width: 0%;"></div></div>';
$('#upload-list').append(html);
});
uploader.on('uploadProgress', function(file, percentage) {
console.log(percentage * 100 + '%');
var width = $('.upload-item').width();
$('.'+file.id).width(width*percentage);
});
uploader.on('uploadSuccess', function(file, response) {
console.log(file.id+"传输成功");
});
uploader.on('uploadError', function(file) {
console.log(file);
console.log(file.id+'上传出错')
});
$('#upload-list').on('click', '.upload-item .btn-delete', function() {
// 从文件队列中删除某个文件id
var file_id = $(this).data('file_id');
// uploader.removeFile(file_id); // 标记文件状态为已取消
uploader.removeFile(file_id, true); // 从queue中删除
console.log(uploader.getFiles());
});
$('#upload-list').on('click', '.btn-retry', function() {
uploader.retry($(this).data('file_id'));
});
uploader.on('uploadComplete', function(file) {
console.log(uploader.getFiles());
});
</script>
</html>
2. 后端代码
class upload
{
private $filepath = './webuploader'.DIRECTORY_SEPARATOR.'file_material'; //上传目录
private $fileTmpPath = './webuploader'.DIRECTORY_SEPARATOR.'file_material_tmp'; //上传目录
private $tmpPath; //PHP文件临时目录
private $blobNum; //第几个文件块
private $totalBlobNum; //文件块总数
private $fileName; //文件名
public function __construct($tmpPath,$blobNum,$totalBlobNum,$fileName){
$this->tmpPath = $tmpPath;
$this->blobNum = $blobNum;
$this->totalBlobNum = $totalBlobNum-1;
$this->fileName = $fileName;
$this->moveFile();
$this->fileMerge();
}
//判断是否是最后一块，如果是则进行文件合成并且删除文件块
private function fileMerge(){
if($this->blobNum == $this->totalBlobNum){
$blob = '';
for($i=0; $i<= $this->totalBlobNum; $i++){
$blob .= file_get_contents($this->fileTmpPath.'/'. $this->fileName.'__'.$i);
}
file_put_contents($this->filepath.'/'. $this->fileName,$blob);
$this->deleteFileBlob();
}
}
//删除文件块
private function deleteFileBlob(){
for($i=0; $i<= $this->totalBlobNum; $i++){
@unlink($this->fileTmpPath.'/'. $this->fileName.'__'.$i);
}
}
//移动文件
private function moveFile(){
$this->touchDir();
$filename = $this->fileTmpPath.'/'. $this->fileName.'__'.$this->blobNum;
move_uploaded_file($this->tmpPath,$filename);
}
//API返回数据
public function apiReturn(){
$data = [];
if($this->blobNum == $this->totalBlobNum){
if(file_exists($this->filepath.'/'. $this->fileName)){
$data['code'] = 2;
$data['msg'] = 'success';
$data['file_path'] = 'http://'.$_SERVER['HTTP_HOST'].str_replace('.','',$this->filepath).'/'. $this->fileName;
}
}else{
if(file_exists($this->fileTmpPath.'/'. $this->fileName.'__'.$this->blobNum)){
$data['code'] = 1;
$data['msg'] = 'waiting for all';
$data['file_path'] = '';
}
}
return json_encode($data);
}
//建立上传文件夹
private function touchDir(){
if(!file_exists($this->filepath)){
if (!mkdir($concurrentDirectory = $this->filepath) && !is_dir($concurrentDirectory)) {
throw new \RuntimeException(sprintf('Directory "%s" was not created', $concurrentDirectory));
}
}
if(!file_exists($this->fileTmpPath)){
if (!mkdir($concurrentDirectory = $this->fileTmpPath) && !is_dir($concurrentDirectory)) {
throw new \RuntimeException(sprintf('Directory "%s" was not created', $concurrentDirectory));
}
}
}
}
3. 控制器代码
public function fileupload()
{
$file = $_FILES['upload'];
$id = input("id");
$fileName = cache($id);
if (!$fileName){
$fileName = md5(time().uniqid(random_int(0,99999),true)).'.'.pathinfo($file['name'])['extension'];
}
cache($id,$fileName,10);
$chunk = input("chunk",0);
$chunks = input("chunks",1);
$upload = new upload($file['tmp_name'],$chunk,$chunks,$fileName);
echo $upload->apiReturn();
}
