PROSAGA码农传奇-Xedge-从cordova客户端上传文件和元数据到azure blob存储

<div class =“post-text”itemprop =“text”>
  <P>
    它实际上很直接。提交阻止列表时，您将元数据键/值对作为请求标头的一部分传递。
  </p>
  <P>
    例如，假设您有2个元数据键/值对：
     <code>
      key1/value1
    </code>
     和
     <code>
      key2/value2
    </code>
    。这是您的提交阻止列表代码的样子：
  </p>
   <pre>
    <code>
      function commitBlockList() {
  var uri = submitUri + '&comp=blocklist';
  console.log(uri);
  var requestBody = '<?xml version="1.0" encoding="utf-8"?><BlockList>';
  for (var i = 0; i < blockIds.length; i++) {
      requestBody += '<Latest>' + blockIds[i] + '</Latest>';
  }
  requestBody += '</BlockList>';
  console.log(requestBody);
  $.ajax({
      url: uri,
      type: "PUT",
      data: requestBody,
      beforeSend: function (xhr) {
          xhr.setRequestHeader('x-ms-blob-content-type', selectedFile.type);
          xhr.setRequestHeader('Content-Length', requestBody.length);
          xhr.setRequestHeader('x-ms-meta-key1', 'value1');
          xhr.setRequestHeader('x-ms-meta-key2', 'value2');
      },
      success: function (data, status) {
          console.log(data);
          console.log(status);
      },
      error: function (xhr, desc, err) {
          console.log(desc);
          console.log(err);
      }
  });
}

</code>
  </pre>
  <P>
    供参考，请参阅
     <code>
      Put Block List
    </code>
     REST API文档：
    <a href="https://docs.microsoft.com/en-us/rest/api/storageservices/Put-Block-List" rel="nofollow noreferrer">
      https://docs.microsoft.com/en-us/rest/api/storageservices/Put-Block-List
    </A>
  </p>
</DIV>