java大视频上传实现

java大视频上传实现

引入了两个概念：块（block）和片（chunk）。每个块由一到多个片组成，而一个资源则由一到多个块组成

将文件分割，分片上传，然后合并

  var upstartBtn = document.getElementById('upstart');

  var rate = document.getElementById('rate');

  const LENGTH = 1024 * 1024 * 1;

  var blob;

  var file = null;  

  //-----------------------------

  fileForm.onchange = function()

        md5filename = md5;                                  //如果需要刷新后也能断点，可利用cookie记录，自行完善   

  } 

  

  stopBtn.onclick = function(){

  

  }

    var xhr = new XMLHttpRequest();

 

      file = that.files[0];

      blob_num += 1;

    this.stop = function(){

    }

      sendFile(blob,file);  

    

      var file_blob = file.slice(start,end);

      return file_blob;

    function sendFile(blob,file){

      form_data.append('blob_num',blob_num);

      form_data.append('file_name',file.name);

      

        var progress;

          progress = '100%';

        }

        rate.innerHTML = progress;

          if(start < file.size && is_stop === 0){

            blob_num += 1;

            //setTimeout(t);

      }

    }

<?php

  private $filepath = './upload'; //上传目录

  private $totalBlobNum; //文件块总数

 

    $this->blobNum = $blobNum;

    $this->moveFile();

   

    if($this->blobNum == $this->totalBlobNum){

        $blob .= file_get_contents($this->filepath.'/'. $this->fileName.'__'.$i);

      $this->deleteFileBlob();

   

    for($i=1; $i<= $this->totalBlobNum; $i++){

  }

  private function moveFile(){

    move_uploaded_file($this->tmpPath,$filename);

  //API返回数据

        if(file_exists($this->filepath.'/'. $this->fileName)){

          $data['file_path'] = 'http://'.$_SERVER['HTTP_HOST'].dirname($_SERVER['DOCUMENT_URI']).str_replace('.','',$this->filepath).'/'. $this->fileName;

        if(file_exists($this->filepath.'/'. $this->fileName.'__'.$this->blobNum)){

          $data['file_path'] = '';

    header('Content-type: application/json');

   

    if(!file_exists($this->filepath)){

  }

     return $md5FileName . '.' . pathinfo($fileName)['extension'];