调用OSS的JSSDK实现取消分片上传及续传-阿里云帮助中心

概述

本文主要介绍调用OSS的JS SDK实现取消分片上传及续传的方法。

详细信息

调用JS SDK通过STS方式上传文件，可通过以下方法实现取消分片上传及续传。

<!DOCTYPE html>
<html>
<head>
  <scriptsrc="http://gosspublic.alicdn.com/aliyun-oss-sdk-4.12.2.min.js"></script>
</head>
<body>
  <inputtype="file" id="file" />
  <inputtype="button" id="cancelupload"value="cancelupload"/>
  <inputtype="button" id="keepupload"value="keepupload"/>
  <scripttype="text/javascript">
    var checkpoint_temp;
    var ifcancel=false;
    var exitTime;
    var file;
    var storeAs;
    var client = newOSS.Wrapper({
      region:'oss-cn-hangzhou',
      accessKeyId: ' ',
      accessKeySecret: ' ',
      bucket: 'dongchics'
    });
  
document.getElementById('file').addEventListener('change', function (e){
      file = e.target.files[0];
      storeAs = 'upload-file';
      console.log(file.name+ ' => ' + storeAs);
      var now = new Date();
      exitTime = now.getTime() + 10000;
      multitest(client,storeAs, file, checkpoint_temp);
        
 });
 
document.getElementById('cancelupload').addEventListener('click', function (e) {ifcancel=true});
document.getElementById('keepupload').addEventListener('click', function (e) {ifcancel=false;
   multitest(client,storeAs, file, checkpoint_temp);  
  });
 
  function cancel(client){
  if(ifcancel) 
      {
          var now1 = newDate();
    varnowtime=now1.getTime();
          client.cancel();
console.log("cancel+++now.getTime:"+nowtime);
console.log("exitTime:"+exitTime);
    
      }
   }
 
  function multitest(ossClient, storeAs, file, cpt) {
//console.log(file.name + ' => ' + storeAs);
      if (cpt) {
console.log("multitest with cpt")
ossClient.multipartUpload(storeAs, file,{
parallel: 2,
checkpoint: cpt,
progress: function* (percent, cpt) {
                                  console.log('Progress: ' + percent);
checkpoint_temp = cpt;
          cancel(client);
}
}).then(function (result) {
console.log(result);
}).catch(function (err) {
console.log(err);
          if(!ifcancel){
multipartUploadWithSts(storeAs, file, checkpoint_temp);}
});
      } else {
console.log("multitest without cpt")
ossClient.multipartUpload(storeAs, file,{
parallel: 2,
progress: function* (percent, cpt) {
console.log('Progress: ' + percent);
checkpoint_temp = cpt;
          cancel(client);
}
}).then(function (result) {
                                  console.log(result);
}).catch(function (err) {
console.log(err);
          if(!ifcancel){
multipartUploadWithSts(storeAs, file, checkpoint_temp);}
 
});
      }
  }
  </script>
</body>
</html>

适用于

对象存储OSS