js上传视频（jquery.form.js）

// 上传目标触发点
<input type="file" class="upvideo" name="upvideo" id="fileupload1" />
// 引入插件
<script type="text/javascript" src="{$IMG}/bstage/js/jquery.form.js" language="javascript"></script>
/**方法调用**/
setFileUpload({
 name: 'fileupload1',
 backfun: upback1,
 beforefun: checkUp1,
 loadfun:loadup,
 phpUrl: '/ossphp/php/get.php?ft=video'
});
// 上传前验证
function checkUp1(n){
 // 查看视频大小(mb)
 var fileObj = document.getElementById(n).files[];
 var relSize = parseInt(fileObj.size//);
 if(relSize > ){ // 大于10mb
  alert('提示','视屏超过10MB,请重新上传！');
  return false;
 }
 // 查看视频类型
 var tv_id =document.getElementById(n).value;//根据id得到值
 var index= tv_id.indexOf(".");
 tv_id=tv_id.substring(index).toLowerCase();
 if(tv_id!=".rb"&&tv_id!=".rmvb"&&tv_id!=".mp4"&&tv_id!=".flv"){
  alert("提示","不是指定视频格式,重新选择");
  return false;
 }
 return true;
}
//上传中
function loadup(){
}
// 上传成功后操作
function upback1(data){
 // data 成功后的参数
}
/**上传功能封装**/
function setFileUpload(options){
 var n = options.name;
 var phpUrl = options.phpUrl;
 var backfun = options.backfun;
 var beforefun = options.beforefun;
 var loadfun = options.loadfun;
 var accessid = '';
 var accesskey = '';
 var host = '';
 var policyBase64 = '';
 var signature = '';
 var callbackbody = '';
 var filename = '';
 var dirname = '';
 var expire = ;
 var upflag = true;
 if(phpUrl==null || phpUrl==''){console.log('phpurl is null');return false;}
 if(n==null || n==''){console.log('object is null');return false;}
 var backfun1 = $.isFunction(backfun) ?
      backfun :
      function(success, error){
       console.log('no backfun');
      };
 var beforefun1 = $.isFunction(beforefun) ?
      beforefun :
      function(success, error){
       return true;
      };
 var loadfun1 = $.isFunction(loadfun) ?
      loadfun :
      function(success, error){
       return true;
      };
 var obj = $('#'+n);
 obj.change(function(){
  if(beforefun1(n)){
   if(n=="fileupload1"){
    fileEmb1(n);
   }else if(n == 'fileupload2'){
    fileEmb2(n);
   }else if(n == 'fileupload3'){
    fileEmb3(n);
   }
  }
 });
 function fileEmb1(n){
  //oss add
  $("#"+n).attr('name','file');
  var file1 = $("#"+n).val();
  var fileName = getFileName(file1);
  phpUrl = phpUrl + '&fname='+fileName;
  get_signature();
  var ldot = fileName.lastIndexOf(".");
  var filetype = fileName.substring(ldot + );
  $("#"+n).wrap("<form id='myupload1' action='"+host+"' method='post' enctype='multipart/form-data'></form>");
  $("#myupload1").prepend("<input type='hidden' value='' name='name' id='name'></input><input type='hidden' value='"+dirname+"."+filetype+"' name='key' ></input><input type='hidden' value='"+policyBase64+"' name='policy' id='policy'></input><input type='hidden' value='"+accessid+"' name='OSSAccessKeyId' id='OSSAccessKeyId'></input><input type='hidden' value='200' name='success_action_status' id='success_action_status' ></input><input type='hidden' value='"+callbackbody+"' name='callback' id='callback'></input><input type='hidden' value='"+signature+"' name='signature' id='signature'></input>");
  //speed_width进度条类
  //percent进度数字类
  //load_content上传区域
  $('#myupload1').ajaxSubmit({
   dataType: 'json', //数据格式为json
   data:'',
   beforeSend: function() {
    loadfun1();
    if(!upflag)return false;
    upflag=false;
   },
   uploadProgress: function(event, position, total, percentComplete) {
    $('.upck_b').hide();
    $('.videspeed').show();
    percentComplete = percentComplete>=?:percentComplete;
    var percentVal = percentComplete + '%'; //获得进度
    $('.speed_num').css('width',percentVal);
    $('.persent_em').html(percentComplete);
   },
   success: function(data) { //成功
     $('.load_content').html('<em >图片上传</em>');
     //上传成功后还原
     $("#"+n).attr('name','');
     setFileUpload(options);
     upflag=true;
     backfun1(data);
   },
   error:function(xhr){ //上传失败
    $('.load_content').html('<em >图片上传</em>');
    upflag=true;
   }
  });
 }
 function getFileName(path){
  var pos1 = path.lastIndexOf('/');
  var pos2 = path.lastIndexOf('\\');
  var pos = Math.max(pos1, pos2)
  if( pos< )
   return path;
  else
   return path.substring(pos+);
 }
 now = timestamp = Date.parse(new Date()) / ;
 new_multipart_params = '';
 function send_request(){
  var xmlhttp = null;
  if (window.XMLHttpRequest)
  {
   xmlhttp=new XMLHttpRequest();
  }
  else if (window.ActiveXObject)
  {
   xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
  if (xmlhttp!=null && phpUrl)
  {
   //phpUrl = '/ossphp/php/get.php?ft=resources';
   xmlhttp.open( "GET", phpUrl, false );
   xmlhttp.send( null );
   return xmlhttp.responseText;
  }
  else
  {
   alert("Your browser does not support XMLHTTP.");
  }
 };
 function get_signature()
 {
  //可以判断当前expire是否超过了当前时间,如果超过了当前时间,就重新取一下.3s 做为缓冲
  now = timestamp = Date.parse(new Date()) / ;
  //if (expire < now + 3)
  //{
   body = send_request()
   var obj = eval ("(" + body + ")");
   host = obj['host']
   policyBase64 = obj['policy']
   accessid = obj['accessid']
   signature = obj['signature']
   expire = parseInt(obj['expire'])
   callbackbody = obj['callback']
   dirname = obj['dir']
   return true;
  //}
 };
}

// 上传目标触发点

<input type="file" class="upvideo" name="upvideo" id="fileupload1" />

// 引入插件

<script type="text/javascript" src="{$IMG}/bstage/js/jquery.form.js" language="javascript"></script>

/**方法调用**/

setFileUpload({

 name: 'fileupload1', 

 backfun: upback1, 

 beforefun: checkUp1,

 loadfun:loadup,

 phpUrl: '/ossphp/php/get.php?ft=video'

});

// 上传前验证

function checkUp1(n){

 // 查看视频大小(mb)

 var fileObj = document.getElementById(n).files[0];

 var relSize = parseInt(fileObj.size/1024/1024);

 if(relSize > 10){ // 大于10mb

  alert('提示','视屏超过10MB,请重新上传！');

  return false;

 }

 // 查看视频类型

 var tv_id =document.getElementById(n).value;//根据id得到值

 var index= tv_id.indexOf(".");

 tv_id=tv_id.substring(index).toLowerCase();

 if(tv_id!=".rb"&&tv_id!=".rmvb"&&tv_id!=".mp4"&&tv_id!=".flv"){

  alert("提示","不是指定视频格式,重新选择");

  return false;

 }

 return true;

}

//上传中

function loadup(){

}

// 上传成功后操作

function upback1(data){  

 // data 成功后的参数

} 

/**上传功能封装**/

function setFileUpload(options){

 var n = options.name;

 var phpUrl = options.phpUrl;

 var backfun = options.backfun;

 var beforefun = options.beforefun;

 var loadfun = options.loadfun; 

 var accessid = '';

 var accesskey = '';

 var host = '';

 var policyBase64 = '';

 var signature = '';

 var callbackbody = '';

 var filename = '';

 var dirname = '';

 var expire = 0;

 var upflag = true;

 if(phpUrl==null || phpUrl==''){console.log('phpurl is null');return false;}

 if(n==null || n==''){console.log('object is null');return false;}

 var backfun1 = $.isFunction(backfun) ?

      backfun :

      function(success, error){

       console.log('no backfun');

      };

 var beforefun1 = $.isFunction(beforefun) ?

      beforefun :

      function(success, error){

       return true;

      };

 var loadfun1 = $.isFunction(loadfun) ?

      loadfun :

      function(success, error){

       return true;

      };

 var obj = $('#'+n);

 obj.change(function(){

  if(beforefun1(n)){

   if(n=="fileupload1"){

    fileEmb1(n);

   }else if(n == 'fileupload2'){

    fileEmb2(n);

   }else if(n == 'fileupload3'){

    fileEmb3(n);

   }

  }

 });

 function fileEmb1(n){

  //oss add

  $("#"+n).attr('name','file');

  var file1 = $("#"+n).val(); 

  var fileName = getFileName(file1);

  phpUrl = phpUrl + '&fname='+fileName;

  get_signature();

  var ldot = fileName.lastIndexOf(".");

  var filetype = fileName.substring(ldot + 1);

  $("#"+n).wrap("<form id='myupload1' action='"+host+"' method='post' enctype='multipart/form-data'></form>");

  $("#myupload1").prepend("<input type='hidden' value='' name='name' id='name'></input><input type='hidden' value='"+dirname+"."+filetype+"' name='key' ></input><input type='hidden' value='"+policyBase64+"' name='policy' id='policy'></input><input type='hidden' value='"+accessid+"' name='OSSAccessKeyId' id='OSSAccessKeyId'></input><input type='hidden' value='200' name='success_action_status' id='success_action_status' ></input><input type='hidden' value='"+callbackbody+"' name='callback' id='callback'></input><input type='hidden' value='"+signature+"' name='signature' id='signature'></input>");

  //speed_width进度条类

  //percent进度数字类

  //load_content上传区域

  $('#myupload1').ajaxSubmit({

   dataType: 'json', //数据格式为json

   data:'',

   beforeSend: function() {

    loadfun1();

    if(!upflag)return false;

    upflag=false;

   },

   uploadProgress: function(event, position, total, percentComplete) {

    $('.upck_b').hide();

    $('.videspeed').show();

    percentComplete = percentComplete>=100?99:percentComplete;

    var percentVal = percentComplete + '%'; //获得进度

    $('.speed_num').css('width',percentVal);

    $('.persent_em').html(percentComplete);

   },

   success: function(data) { //成功

     $('.load_content').html('<em >图片上传</em>');

     //上传成功后还原

     $("#"+n).attr('name','');

     setFileUpload(options);

     upflag=true;

     backfun1(data);

   },

   error:function(xhr){ //上传失败

    $('.load_content').html('<em >图片上传</em>');

    upflag=true;

   }

  });

 }

 function getFileName(path){

  var pos1 = path.lastIndexOf('/');

  var pos2 = path.lastIndexOf('\\');

  var pos = Math.max(pos1, pos2)

  if( pos<0 )

   return path;

  else

   return path.substring(pos+1);

 }

 now = timestamp = Date.parse(new Date()) / 1000;

 new_multipart_params = '';

 function send_request(){

  var xmlhttp = null;

  if (window.XMLHttpRequest)

  {

   xmlhttp=new XMLHttpRequest();

  }

  else if (window.ActiveXObject)

  {

   xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");

  }

  if (xmlhttp!=null && phpUrl)

  {

   //phpUrl = '/ossphp/php/get.php?ft=resources';

   xmlhttp.open( "GET", phpUrl, false );

   xmlhttp.send( null );

   return xmlhttp.responseText;

  }

  else

  {

   alert("Your browser does not support XMLHTTP.");

  }

 };

 function get_signature()

 {

  //可以判断当前expire是否超过了当前时间,如果超过了当前时间,就重新取一下.3s 做为缓冲

  now = timestamp = Date.parse(new Date()) / 1000; 

  //if (expire < now + 3)

  //{

   body = send_request()

   var obj = eval ("(" + body + ")");

   host = obj['host']

   policyBase64 = obj['policy']

   accessid = obj['accessid']

   signature = obj['signature']

   expire = parseInt(obj['expire'])

   callbackbody = obj['callback']

   dirname = obj['dir']

   return true;

  //}

 };

}